/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 18:47:13,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 18:47:13,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 18:47:13,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 18:47:13,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 18:47:13,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 18:47:13,915 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 18:47:13,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 18:47:13,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 18:47:13,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 18:47:13,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 18:47:13,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 18:47:13,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 18:47:13,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 18:47:13,930 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 18:47:13,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 18:47:13,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 18:47:13,932 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 18:47:13,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 18:47:13,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 18:47:13,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 18:47:13,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 18:47:13,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 18:47:13,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 18:47:13,948 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-05 18:47:13,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 18:47:13,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 18:47:13,960 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 18:47:13,963 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-05 18:47:13,989 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 18:47:13,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 18:47:13,991 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 18:47:13,991 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 18:47:13,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 18:47:13,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 18:47:13,992 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 18:47:13,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 18:47:13,993 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 18:47:13,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 18:47:13,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 18:47:13,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 18:47:13,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 18:47:13,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 18:47:13,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 18:47:13,994 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 18:47:13,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 18:47:13,994 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 18:47:13,994 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 18:47:13,994 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 18:47:13,994 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 18:47:13,994 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 18:47:13,994 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 18:47:13,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:47:13,995 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 18:47:13,995 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 18:47:13,995 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 18:47:13,995 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 18:47:13,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 18:47:13,995 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-05 18:47:13,996 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 18:47:13,996 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 18:47:14,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 18:47:14,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 18:47:14,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 18:47:14,298 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 18:47:14,298 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 18:47:14,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i [2022-12-05 18:47:15,418 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 18:47:15,700 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 18:47:15,701 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i [2022-12-05 18:47:15,728 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/529ba9449/b7ab5bf74daf46908672b01464d32cb9/FLAGdf153a839 [2022-12-05 18:47:15,742 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/529ba9449/b7ab5bf74daf46908672b01464d32cb9 [2022-12-05 18:47:15,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 18:47:15,745 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 18:47:15,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 18:47:15,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 18:47:15,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 18:47:15,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:47:15" (1/1) ... [2022-12-05 18:47:15,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10e296b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:15, skipping insertion in model container [2022-12-05 18:47:15,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:47:15" (1/1) ... [2022-12-05 18:47:15,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 18:47:15,791 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 18:47:15,921 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i[1088,1101] [2022-12-05 18:47:16,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:47:16,073 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 18:47:16,084 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i[1088,1101] [2022-12-05 18:47:16,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:47:16,144 INFO L208 MainTranslator]: Completed translation [2022-12-05 18:47:16,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:16 WrapperNode [2022-12-05 18:47:16,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 18:47:16,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 18:47:16,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 18:47:16,146 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 18:47:16,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:16" (1/1) ... [2022-12-05 18:47:16,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:16" (1/1) ... [2022-12-05 18:47:16,186 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-12-05 18:47:16,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 18:47:16,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 18:47:16,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 18:47:16,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 18:47:16,193 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:16" (1/1) ... [2022-12-05 18:47:16,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:16" (1/1) ... [2022-12-05 18:47:16,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:16" (1/1) ... [2022-12-05 18:47:16,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:16" (1/1) ... [2022-12-05 18:47:16,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:16" (1/1) ... [2022-12-05 18:47:16,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:16" (1/1) ... [2022-12-05 18:47:16,208 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:16" (1/1) ... [2022-12-05 18:47:16,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:16" (1/1) ... [2022-12-05 18:47:16,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 18:47:16,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 18:47:16,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 18:47:16,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 18:47:16,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:16" (1/1) ... [2022-12-05 18:47:16,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:47:16,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:47:16,260 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) [2022-12-05 18:47:16,273 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 [2022-12-05 18:47:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 18:47:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 18:47:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 18:47:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 18:47:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-05 18:47:16,299 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-05 18:47:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 18:47:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 18:47:16,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 18:47:16,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 18:47:16,301 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 18:47:16,414 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 18:47:16,416 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 18:47:16,646 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 18:47:16,651 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 18:47:16,651 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 18:47:16,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:47:16 BoogieIcfgContainer [2022-12-05 18:47:16,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 18:47:16,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 18:47:16,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 18:47:16,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 18:47:16,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 06:47:15" (1/3) ... [2022-12-05 18:47:16,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e3b6b35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:47:16, skipping insertion in model container [2022-12-05 18:47:16,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:16" (2/3) ... [2022-12-05 18:47:16,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e3b6b35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:47:16, skipping insertion in model container [2022-12-05 18:47:16,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:47:16" (3/3) ... [2022-12-05 18:47:16,684 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_36-traces-ex-3_true.i [2022-12-05 18:47:16,708 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 18:47:16,709 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 18:47:16,709 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 18:47:16,748 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-05 18:47:16,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 62 transitions, 129 flow [2022-12-05 18:47:16,804 INFO L130 PetriNetUnfolder]: 1/61 cut-off events. [2022-12-05 18:47:16,805 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:47:16,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 61 events. 1/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-12-05 18:47:16,808 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 62 transitions, 129 flow [2022-12-05 18:47:16,810 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 52 transitions, 107 flow [2022-12-05 18:47:16,817 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 18:47:16,831 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@6118222b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 18:47:16,832 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-05 18:47:16,844 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2022-12-05 18:47:16,845 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:47:16,845 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:16,845 INFO L213 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] [2022-12-05 18:47:16,846 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 18:47:16,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:16,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1753129160, now seen corresponding path program 1 times [2022-12-05 18:47:16,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:16,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627605104] [2022-12-05 18:47:16,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:16,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:16,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:17,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:47:17,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:17,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627605104] [2022-12-05 18:47:17,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627605104] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:17,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:17,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 18:47:17,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796649425] [2022-12-05 18:47:17,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:17,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 18:47:17,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:17,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 18:47:17,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-05 18:47:17,299 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 62 [2022-12-05 18:47:17,302 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 52 transitions, 107 flow. Second operand has 5 states, 5 states have (on average 52.2) internal successors, (261), 5 states have internal predecessors, (261), 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) [2022-12-05 18:47:17,310 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:17,310 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 62 [2022-12-05 18:47:17,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:17,409 INFO L130 PetriNetUnfolder]: 8/91 cut-off events. [2022-12-05 18:47:17,410 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 18:47:17,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 91 events. 8/91 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 173 event pairs, 0 based on Foata normal form. 3/94 useless extension candidates. Maximal degree in co-relation 89. Up to 10 conditions per place. [2022-12-05 18:47:17,411 INFO L137 encePairwiseOnDemand]: 56/62 looper letters, 8 selfloop transitions, 3 changer transitions 9/64 dead transitions. [2022-12-05 18:47:17,412 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 64 transitions, 171 flow [2022-12-05 18:47:17,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 18:47:17,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 18:47:17,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 379 transitions. [2022-12-05 18:47:17,425 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8732718894009217 [2022-12-05 18:47:17,426 INFO L175 Difference]: Start difference. First operand has 56 places, 52 transitions, 107 flow. Second operand 7 states and 379 transitions. [2022-12-05 18:47:17,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 64 transitions, 171 flow [2022-12-05 18:47:17,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 64 transitions, 170 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 18:47:17,434 INFO L231 Difference]: Finished difference. Result has 66 places, 52 transitions, 125 flow [2022-12-05 18:47:17,435 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=125, PETRI_PLACES=66, PETRI_TRANSITIONS=52} [2022-12-05 18:47:17,438 INFO L294 CegarLoopForPetriNet]: 56 programPoint places, 10 predicate places. [2022-12-05 18:47:17,438 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 52 transitions, 125 flow [2022-12-05 18:47:17,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 52.2) internal successors, (261), 5 states have internal predecessors, (261), 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) [2022-12-05 18:47:17,438 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:17,439 INFO L213 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] [2022-12-05 18:47:17,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 18:47:17,439 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 18:47:17,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:17,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1992114122, now seen corresponding path program 1 times [2022-12-05 18:47:17,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:17,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767383851] [2022-12-05 18:47:17,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:17,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:17,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:47:17,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:17,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767383851] [2022-12-05 18:47:17,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767383851] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:17,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:17,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 18:47:17,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168505555] [2022-12-05 18:47:17,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:17,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 18:47:17,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:17,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 18:47:17,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 18:47:17,577 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 62 [2022-12-05 18:47:17,578 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 52 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2022-12-05 18:47:17,578 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:17,578 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 62 [2022-12-05 18:47:17,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:17,628 INFO L130 PetriNetUnfolder]: 11/113 cut-off events. [2022-12-05 18:47:17,628 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-12-05 18:47:17,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 113 events. 11/113 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 307 event pairs, 5 based on Foata normal form. 3/116 useless extension candidates. Maximal degree in co-relation 173. Up to 29 conditions per place. [2022-12-05 18:47:17,629 INFO L137 encePairwiseOnDemand]: 57/62 looper letters, 14 selfloop transitions, 5 changer transitions 0/57 dead transitions. [2022-12-05 18:47:17,629 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 57 transitions, 173 flow [2022-12-05 18:47:17,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 18:47:17,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 18:47:17,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 156 transitions. [2022-12-05 18:47:17,634 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8387096774193549 [2022-12-05 18:47:17,634 INFO L175 Difference]: Start difference. First operand has 66 places, 52 transitions, 125 flow. Second operand 3 states and 156 transitions. [2022-12-05 18:47:17,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 57 transitions, 173 flow [2022-12-05 18:47:17,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 57 transitions, 159 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-12-05 18:47:17,638 INFO L231 Difference]: Finished difference. Result has 59 places, 55 transitions, 138 flow [2022-12-05 18:47:17,639 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=59, PETRI_TRANSITIONS=55} [2022-12-05 18:47:17,639 INFO L294 CegarLoopForPetriNet]: 56 programPoint places, 3 predicate places. [2022-12-05 18:47:17,639 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 55 transitions, 138 flow [2022-12-05 18:47:17,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2022-12-05 18:47:17,640 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:17,640 INFO L213 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] [2022-12-05 18:47:17,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 18:47:17,640 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 18:47:17,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:17,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1491345512, now seen corresponding path program 2 times [2022-12-05 18:47:17,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:17,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681324085] [2022-12-05 18:47:17,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:17,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:17,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:47:17,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:17,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681324085] [2022-12-05 18:47:17,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681324085] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:17,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:17,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:47:17,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822607105] [2022-12-05 18:47:17,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:17,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:47:17,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:17,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:47:17,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:47:17,861 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 62 [2022-12-05 18:47:17,861 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 55 transitions, 138 flow. Second operand has 6 states, 6 states have (on average 41.833333333333336) internal successors, (251), 6 states have internal predecessors, (251), 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) [2022-12-05 18:47:17,861 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:17,861 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 62 [2022-12-05 18:47:17,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:17,929 INFO L130 PetriNetUnfolder]: 8/79 cut-off events. [2022-12-05 18:47:17,929 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-12-05 18:47:17,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 79 events. 8/79 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 129 event pairs, 3 based on Foata normal form. 3/82 useless extension candidates. Maximal degree in co-relation 101. Up to 19 conditions per place. [2022-12-05 18:47:17,929 INFO L137 encePairwiseOnDemand]: 57/62 looper letters, 0 selfloop transitions, 0 changer transitions 51/51 dead transitions. [2022-12-05 18:47:17,929 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 51 transitions, 175 flow [2022-12-05 18:47:17,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 18:47:17,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 18:47:17,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 218 transitions. [2022-12-05 18:47:17,931 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7032258064516129 [2022-12-05 18:47:17,931 INFO L175 Difference]: Start difference. First operand has 59 places, 55 transitions, 138 flow. Second operand 5 states and 218 transitions. [2022-12-05 18:47:17,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 51 transitions, 175 flow [2022-12-05 18:47:17,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 51 transitions, 168 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 18:47:17,934 INFO L231 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2022-12-05 18:47:17,934 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2022-12-05 18:47:17,935 INFO L294 CegarLoopForPetriNet]: 56 programPoint places, 0 predicate places. [2022-12-05 18:47:17,935 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow [2022-12-05 18:47:17,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.833333333333336) internal successors, (251), 6 states have internal predecessors, (251), 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) [2022-12-05 18:47:17,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-05 18:47:17,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-05 18:47:17,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 18:47:17,938 INFO L458 BasicCegarLoop]: Path program histogram: [2, 1] [2022-12-05 18:47:17,940 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 18:47:17,940 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 18:47:17,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 06:47:17 BasicIcfg [2022-12-05 18:47:17,947 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 18:47:17,948 INFO L158 Benchmark]: Toolchain (without parser) took 2202.95ms. Allocated memory is still 176.2MB. Free memory was 149.5MB in the beginning and 135.3MB in the end (delta: 14.2MB). Peak memory consumption was 15.5MB. Max. memory is 8.0GB. [2022-12-05 18:47:17,949 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 127.9MB. Free memory is still 109.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 18:47:17,949 INFO L158 Benchmark]: CACSL2BoogieTranslator took 398.47ms. Allocated memory is still 176.2MB. Free memory was 149.5MB in the beginning and 130.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-05 18:47:17,949 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.98ms. Allocated memory is still 176.2MB. Free memory was 130.6MB in the beginning and 128.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 18:47:17,949 INFO L158 Benchmark]: Boogie Preprocessor took 22.73ms. Allocated memory is still 176.2MB. Free memory was 128.5MB in the beginning and 127.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 18:47:17,950 INFO L158 Benchmark]: RCFGBuilder took 441.78ms. Allocated memory is still 176.2MB. Free memory was 127.5MB in the beginning and 146.3MB in the end (delta: -18.8MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. [2022-12-05 18:47:17,950 INFO L158 Benchmark]: TraceAbstraction took 1293.51ms. Allocated memory is still 176.2MB. Free memory was 145.8MB in the beginning and 135.3MB in the end (delta: 10.4MB). Peak memory consumption was 10.4MB. Max. memory is 8.0GB. [2022-12-05 18:47:17,951 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 127.9MB. Free memory is still 109.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 398.47ms. Allocated memory is still 176.2MB. Free memory was 149.5MB in the beginning and 130.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.98ms. Allocated memory is still 176.2MB. Free memory was 130.6MB in the beginning and 128.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.73ms. Allocated memory is still 176.2MB. Free memory was 128.5MB in the beginning and 127.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 441.78ms. Allocated memory is still 176.2MB. Free memory was 127.5MB in the beginning and 146.3MB in the end (delta: -18.8MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. * TraceAbstraction took 1293.51ms. Allocated memory is still 176.2MB. Free memory was 145.8MB in the beginning and 135.3MB in the end (delta: 10.4MB). Peak memory consumption was 10.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 75 locations, 2 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: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 80 IncrementalHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 23 mSDtfsCounter, 80 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=2, InterpolantAutomatonStates: 15, 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, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 128 ConstructedInterpolants, 0 QuantifiedInterpolants, 301 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2022-12-05 18:47:17,968 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...