/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 00:31:17,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 00:31:17,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 00:31:17,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 00:31:17,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 00:31:17,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 00:31:17,998 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 00:31:18,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 00:31:18,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 00:31:18,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 00:31:18,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 00:31:18,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 00:31:18,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 00:31:18,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 00:31:18,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 00:31:18,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 00:31:18,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 00:31:18,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 00:31:18,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 00:31:18,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 00:31:18,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 00:31:18,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 00:31:18,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 00:31:18,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 00:31:18,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-13 00:31:18,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 00:31:18,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 00:31:18,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 00:31:18,040 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-RepeatedSemanticLbe.epf [2022-12-13 00:31:18,064 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 00:31:18,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 00:31:18,066 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 00:31:18,066 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 00:31:18,067 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 00:31:18,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 00:31:18,067 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 00:31:18,067 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 00:31:18,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 00:31:18,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 00:31:18,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 00:31:18,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 00:31:18,068 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 00:31:18,069 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 00:31:18,069 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 00:31:18,069 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 00:31:18,069 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 00:31:18,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 00:31:18,069 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 00:31:18,069 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 00:31:18,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 00:31:18,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 00:31:18,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 00:31:18,070 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 00:31:18,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 00:31:18,070 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 00:31:18,070 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 00:31:18,070 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 00:31:18,070 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-13 00:31:18,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 00:31:18,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 00:31:18,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 00:31:18,358 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 00:31:18,358 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 00:31:18,359 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2022-12-13 00:31:19,389 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 00:31:19,655 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 00:31:19,655 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2022-12-13 00:31:19,686 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c523493ed/2ad58341b5a5477e9abac8066f241b58/FLAG3c1c0dfde [2022-12-13 00:31:19,698 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c523493ed/2ad58341b5a5477e9abac8066f241b58 [2022-12-13 00:31:19,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 00:31:19,701 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 00:31:19,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 00:31:19,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 00:31:19,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 00:31:19,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:31:19" (1/1) ... [2022-12-13 00:31:19,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f87f1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:19, skipping insertion in model container [2022-12-13 00:31:19,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:31:19" (1/1) ... [2022-12-13 00:31:19,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 00:31:19,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 00:31:19,901 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 00:31:20,038 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i[55568,55581] [2022-12-13 00:31:20,049 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:31:20,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:31:20,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:31:20,053 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:31:20,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 00:31:20,083 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 00:31:20,097 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 00:31:20,114 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i[55568,55581] [2022-12-13 00:31:20,115 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:31:20,115 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:31:20,115 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:31:20,116 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:31:20,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 00:31:20,171 INFO L208 MainTranslator]: Completed translation [2022-12-13 00:31:20,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:20 WrapperNode [2022-12-13 00:31:20,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 00:31:20,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 00:31:20,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 00:31:20,173 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 00:31:20,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:20" (1/1) ... [2022-12-13 00:31:20,205 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:20" (1/1) ... [2022-12-13 00:31:20,225 INFO L138 Inliner]: procedures = 325, calls = 53, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2022-12-13 00:31:20,225 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 00:31:20,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 00:31:20,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 00:31:20,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 00:31:20,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:20" (1/1) ... [2022-12-13 00:31:20,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:20" (1/1) ... [2022-12-13 00:31:20,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:20" (1/1) ... [2022-12-13 00:31:20,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:20" (1/1) ... [2022-12-13 00:31:20,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:20" (1/1) ... [2022-12-13 00:31:20,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:20" (1/1) ... [2022-12-13 00:31:20,256 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:20" (1/1) ... [2022-12-13 00:31:20,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:20" (1/1) ... [2022-12-13 00:31:20,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 00:31:20,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 00:31:20,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 00:31:20,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 00:31:20,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:20" (1/1) ... [2022-12-13 00:31:20,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 00:31:20,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 00:31:20,325 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) [2022-12-13 00:31:20,390 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 [2022-12-13 00:31:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 00:31:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 00:31:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 00:31:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 00:31:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 00:31:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2022-12-13 00:31:20,416 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2022-12-13 00:31:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 00:31:20,416 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 00:31:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 00:31:20,416 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 00:31:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 00:31:20,417 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 00:31:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 00:31:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 00:31:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 00:31:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 00:31:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 00:31:20,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 00:31:20,419 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 00:31:20,523 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 00:31:20,524 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 00:31:20,789 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 00:31:20,798 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 00:31:20,798 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 00:31:20,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:31:20 BoogieIcfgContainer [2022-12-13 00:31:20,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 00:31:20,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 00:31:20,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 00:31:20,803 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 00:31:20,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:31:19" (1/3) ... [2022-12-13 00:31:20,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e178372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:31:20, skipping insertion in model container [2022-12-13 00:31:20,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:20" (2/3) ... [2022-12-13 00:31:20,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e178372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:31:20, skipping insertion in model container [2022-12-13 00:31:20,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:31:20" (3/3) ... [2022-12-13 00:31:20,805 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2022-12-13 00:31:20,824 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 00:31:20,825 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 00:31:20,825 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 00:31:20,978 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2022-12-13 00:31:21,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 204 places, 195 transitions, 497 flow [2022-12-13 00:31:21,098 INFO L130 PetriNetUnfolder]: 7/132 cut-off events. [2022-12-13 00:31:21,098 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 00:31:21,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 132 events. 7/132 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 56 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2022-12-13 00:31:21,103 INFO L82 GeneralOperation]: Start removeDead. Operand has 204 places, 195 transitions, 497 flow [2022-12-13 00:31:21,110 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 121 transitions, 293 flow [2022-12-13 00:31:21,111 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 00:31:21,138 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 121 transitions, 293 flow [2022-12-13 00:31:21,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 121 transitions, 293 flow [2022-12-13 00:31:21,190 INFO L130 PetriNetUnfolder]: 6/121 cut-off events. [2022-12-13 00:31:21,190 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 00:31:21,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 121 events. 6/121 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 49 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2022-12-13 00:31:21,194 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 121 transitions, 293 flow [2022-12-13 00:31:21,194 INFO L226 LiptonReduction]: Number of co-enabled transitions 1344 [2022-12-13 00:31:23,571 INFO L241 LiptonReduction]: Total number of compositions: 85 [2022-12-13 00:31:23,590 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 00:31:23,595 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=REPEATED_LIPTON_PN, 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;@7a692c8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 00:31:23,596 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-12-13 00:31:23,602 INFO L130 PetriNetUnfolder]: 5/35 cut-off events. [2022-12-13 00:31:23,602 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 00:31:23,603 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 00:31:23,603 INFO L214 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] [2022-12-13 00:31:23,603 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2022-12-13 00:31:23,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 00:31:23,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1305601788, now seen corresponding path program 1 times [2022-12-13 00:31:23,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 00:31:23,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283285338] [2022-12-13 00:31:23,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 00:31:23,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 00:31:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 00:31:24,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 00:31:24,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 00:31:24,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283285338] [2022-12-13 00:31:24,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283285338] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 00:31:24,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 00:31:24,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 00:31:24,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141799189] [2022-12-13 00:31:24,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 00:31:24,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 00:31:24,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 00:31:24,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 00:31:24,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 00:31:24,332 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 36 [2022-12-13 00:31:24,333 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 36 transitions, 123 flow. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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) [2022-12-13 00:31:24,333 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 00:31:24,333 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 36 [2022-12-13 00:31:24,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 00:31:24,505 INFO L130 PetriNetUnfolder]: 582/904 cut-off events. [2022-12-13 00:31:24,505 INFO L131 PetriNetUnfolder]: For 104/104 co-relation queries the response was YES. [2022-12-13 00:31:24,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2036 conditions, 904 events. 582/904 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3029 event pairs, 172 based on Foata normal form. 1/847 useless extension candidates. Maximal degree in co-relation 2014. Up to 523 conditions per place. [2022-12-13 00:31:24,515 INFO L137 encePairwiseOnDemand]: 28/36 looper letters, 43 selfloop transitions, 7 changer transitions 11/61 dead transitions. [2022-12-13 00:31:24,516 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 61 transitions, 331 flow [2022-12-13 00:31:24,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 00:31:24,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 00:31:24,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2022-12-13 00:31:24,525 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5740740740740741 [2022-12-13 00:31:24,526 INFO L175 Difference]: Start difference. First operand has 50 places, 36 transitions, 123 flow. Second operand 3 states and 62 transitions. [2022-12-13 00:31:24,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 61 transitions, 331 flow [2022-12-13 00:31:24,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 61 transitions, 273 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-12-13 00:31:24,537 INFO L231 Difference]: Finished difference. Result has 42 places, 42 transitions, 143 flow [2022-12-13 00:31:24,538 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=143, PETRI_PLACES=42, PETRI_TRANSITIONS=42} [2022-12-13 00:31:24,541 INFO L295 CegarLoopForPetriNet]: 50 programPoint places, -8 predicate places. [2022-12-13 00:31:24,541 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 00:31:24,542 INFO L89 Accepts]: Start accepts. Operand has 42 places, 42 transitions, 143 flow [2022-12-13 00:31:24,545 INFO L95 Accepts]: Finished accepts. [2022-12-13 00:31:24,546 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 00:31:24,546 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 42 transitions, 143 flow [2022-12-13 00:31:24,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 42 transitions, 143 flow [2022-12-13 00:31:24,563 INFO L130 PetriNetUnfolder]: 46/145 cut-off events. [2022-12-13 00:31:24,563 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-12-13 00:31:24,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 145 events. 46/145 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 462 event pairs, 9 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 256. Up to 38 conditions per place. [2022-12-13 00:31:24,566 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 42 transitions, 143 flow [2022-12-13 00:31:24,566 INFO L226 LiptonReduction]: Number of co-enabled transitions 172 [2022-12-13 00:31:24,568 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 00:31:24,586 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 45 [2022-12-13 00:31:24,586 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 42 transitions, 143 flow [2022-12-13 00:31:24,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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) [2022-12-13 00:31:24,588 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 00:31:24,588 INFO L214 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] [2022-12-13 00:31:24,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 00:31:24,589 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2022-12-13 00:31:24,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 00:31:24,589 INFO L85 PathProgramCache]: Analyzing trace with hash -2025702419, now seen corresponding path program 1 times [2022-12-13 00:31:24,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 00:31:24,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433943872] [2022-12-13 00:31:24,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 00:31:24,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 00:31:24,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 00:31:24,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 00:31:24,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 00:31:24,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433943872] [2022-12-13 00:31:24,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433943872] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 00:31:24,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 00:31:24,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 00:31:24,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858555898] [2022-12-13 00:31:24,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 00:31:24,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 00:31:24,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 00:31:24,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 00:31:24,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 00:31:24,764 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 36 [2022-12-13 00:31:24,764 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 42 transitions, 143 flow. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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) [2022-12-13 00:31:24,764 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 00:31:24,764 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 36 [2022-12-13 00:31:24,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 00:31:24,878 INFO L130 PetriNetUnfolder]: 527/846 cut-off events. [2022-12-13 00:31:24,879 INFO L131 PetriNetUnfolder]: For 528/528 co-relation queries the response was YES. [2022-12-13 00:31:24,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2401 conditions, 846 events. 527/846 cut-off events. For 528/528 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2991 event pairs, 189 based on Foata normal form. 1/783 useless extension candidates. Maximal degree in co-relation 1036. Up to 654 conditions per place. [2022-12-13 00:31:24,881 INFO L137 encePairwiseOnDemand]: 29/36 looper letters, 0 selfloop transitions, 0 changer transitions 63/63 dead transitions. [2022-12-13 00:31:24,881 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 63 transitions, 336 flow [2022-12-13 00:31:24,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 00:31:24,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 00:31:24,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2022-12-13 00:31:24,883 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5370370370370371 [2022-12-13 00:31:24,883 INFO L175 Difference]: Start difference. First operand has 42 places, 42 transitions, 143 flow. Second operand 3 states and 58 transitions. [2022-12-13 00:31:24,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 63 transitions, 336 flow [2022-12-13 00:31:24,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 63 transitions, 316 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 00:31:24,886 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2022-12-13 00:31:24,886 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2022-12-13 00:31:24,886 INFO L295 CegarLoopForPetriNet]: 50 programPoint places, -9 predicate places. [2022-12-13 00:31:24,887 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 00:31:24,887 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 0 transitions, 0 flow [2022-12-13 00:31:24,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-13 00:31:24,887 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 00:31:24,887 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 00:31:24,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2022-12-13 00:31:24,888 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 00:31:24,888 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 00:31:24,888 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 00:31:24,889 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-13 00:31:24,889 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-13 00:31:24,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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) [2022-12-13 00:31:24,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2022-12-13 00:31:24,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 12 remaining) [2022-12-13 00:31:24,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 12 remaining) [2022-12-13 00:31:24,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 12 remaining) [2022-12-13 00:31:24,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 12 remaining) [2022-12-13 00:31:24,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 12 remaining) [2022-12-13 00:31:24,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2022-12-13 00:31:24,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2022-12-13 00:31:24,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2022-12-13 00:31:24,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 12 remaining) [2022-12-13 00:31:24,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2022-12-13 00:31:24,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2022-12-13 00:31:24,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 00:31:24,897 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 00:31:24,900 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 00:31:24,900 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 00:31:24,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:31:24 BasicIcfg [2022-12-13 00:31:24,902 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 00:31:24,904 INFO L158 Benchmark]: Toolchain (without parser) took 5201.78ms. Allocated memory was 183.5MB in the beginning and 233.8MB in the end (delta: 50.3MB). Free memory was 157.7MB in the beginning and 105.2MB in the end (delta: 52.5MB). Peak memory consumption was 104.0MB. Max. memory is 8.0GB. [2022-12-13 00:31:24,904 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 183.5MB. Free memory was 159.8MB in the beginning and 159.6MB in the end (delta: 152.1kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 00:31:24,910 INFO L158 Benchmark]: CACSL2BoogieTranslator took 469.55ms. Allocated memory is still 183.5MB. Free memory was 157.4MB in the beginning and 123.8MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2022-12-13 00:31:24,910 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.60ms. Allocated memory is still 183.5MB. Free memory was 123.8MB in the beginning and 121.2MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-13 00:31:24,910 INFO L158 Benchmark]: Boogie Preprocessor took 41.08ms. Allocated memory is still 183.5MB. Free memory was 121.2MB in the beginning and 119.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-13 00:31:24,911 INFO L158 Benchmark]: RCFGBuilder took 531.42ms. Allocated memory is still 183.5MB. Free memory was 119.6MB in the beginning and 103.3MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-12-13 00:31:24,911 INFO L158 Benchmark]: TraceAbstraction took 4100.74ms. Allocated memory was 183.5MB in the beginning and 233.8MB in the end (delta: 50.3MB). Free memory was 101.8MB in the beginning and 105.2MB in the end (delta: -3.4MB). Peak memory consumption was 48.5MB. Max. memory is 8.0GB. [2022-12-13 00:31:24,912 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 183.5MB. Free memory was 159.8MB in the beginning and 159.6MB in the end (delta: 152.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 469.55ms. Allocated memory is still 183.5MB. Free memory was 157.4MB in the beginning and 123.8MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.60ms. Allocated memory is still 183.5MB. Free memory was 123.8MB in the beginning and 121.2MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.08ms. Allocated memory is still 183.5MB. Free memory was 121.2MB in the beginning and 119.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 531.42ms. Allocated memory is still 183.5MB. Free memory was 119.6MB in the beginning and 103.3MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 4100.74ms. Allocated memory was 183.5MB in the beginning and 233.8MB in the end (delta: 50.3MB). Free memory was 101.8MB in the beginning and 105.2MB in the end (delta: -3.4MB). Peak memory consumption was 48.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 134 PlacesBefore, 50 PlacesAfterwards, 121 TransitionsBefore, 36 TransitionsAfterwards, 1344 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 23 TrivialYvCompositions, 61 ConcurrentYvCompositions, 1 ChoiceCompositions, 85 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 604, independent: 600, independent conditional: 600, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 604, independent: 600, independent conditional: 0, independent unconditional: 600, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 604, independent: 600, independent conditional: 0, independent unconditional: 600, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 604, independent: 600, independent conditional: 0, independent unconditional: 600, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 604, independent: 600, independent conditional: 0, independent unconditional: 600, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 604, independent: 600, independent conditional: 0, independent unconditional: 600, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 604, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 604, unknown conditional: 0, unknown unconditional: 604] , Statistics on independence cache: Total cache size (in pairs): 900, Positive cache size: 896, Positive conditional cache size: 0, Positive unconditional cache size: 896, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 42 PlacesBefore, 42 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 172 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 1123]: 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 11 procedures, 224 locations, 12 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: 3.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 171 IncrementalHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 171 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=143occurred in iteration=1, InterpolantAutomatonStates: 6, 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, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 132 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! [2022-12-13 00:31:24,943 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...