/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-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -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 [2022-12-12 21:18:41,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 21:18:41,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 21:18:41,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 21:18:41,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 21:18:41,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 21:18:41,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 21:18:41,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 21:18:41,351 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 21:18:41,355 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 21:18:41,355 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 21:18:41,357 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 21:18:41,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 21:18:41,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 21:18:41,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 21:18:41,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 21:18:41,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 21:18:41,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 21:18:41,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 21:18:41,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 21:18:41,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 21:18:41,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 21:18:41,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 21:18:41,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 21:18:41,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 21:18:41,378 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 21:18:41,378 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 21:18:41,379 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 21:18:41,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 21:18:41,380 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 21:18:41,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 21:18:41,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 21:18:41,383 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 21:18:41,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 21:18:41,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 21:18:41,384 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 21:18:41,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 21:18:41,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 21:18:41,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 21:18:41,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 21:18:41,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 21:18:41,386 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-SemanticLbe.epf [2022-12-12 21:18:41,412 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 21:18:41,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 21:18:41,414 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 21:18:41,414 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 21:18:41,415 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 21:18:41,415 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 21:18:41,415 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 21:18:41,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 21:18:41,416 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 21:18:41,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 21:18:41,416 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 21:18:41,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 21:18:41,417 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 21:18:41,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 21:18:41,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 21:18:41,417 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 21:18:41,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 21:18:41,417 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 21:18:41,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 21:18:41,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 21:18:41,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 21:18:41,417 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 21:18:41,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 21:18:41,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:18:41,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 21:18:41,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 21:18:41,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 21:18:41,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 21:18:41,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 21:18:41,418 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 21:18:41,418 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 21:18:41,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 21:18:41,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 21:18:41,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 21:18:41,761 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 21:18:41,766 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 21:18:41,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2022-12-12 21:18:42,779 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 21:18:43,036 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 21:18:43,037 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2022-12-12 21:18:43,058 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ba27aef9/27cd7f2c21d6418093e168dced9bcef4/FLAGbb63d0c05 [2022-12-12 21:18:43,071 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ba27aef9/27cd7f2c21d6418093e168dced9bcef4 [2022-12-12 21:18:43,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 21:18:43,074 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 21:18:43,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 21:18:43,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 21:18:43,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 21:18:43,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:18:43" (1/1) ... [2022-12-12 21:18:43,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@425d12a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:43, skipping insertion in model container [2022-12-12 21:18:43,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:18:43" (1/1) ... [2022-12-12 21:18:43,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 21:18:43,132 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 21:18:43,313 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-12 21:18:43,462 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] [2022-12-12 21:18:43,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:18:43,470 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:18:43,471 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:18:43,472 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:18:43,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:18:43,498 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 21:18:43,521 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-12 21:18:43,537 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] [2022-12-12 21:18:43,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:18:43,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:18:43,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:18:43,540 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:18:43,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:18:43,603 INFO L208 MainTranslator]: Completed translation [2022-12-12 21:18:43,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:43 WrapperNode [2022-12-12 21:18:43,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 21:18:43,605 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 21:18:43,605 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 21:18:43,605 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 21:18:43,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:43" (1/1) ... [2022-12-12 21:18:43,624 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:43" (1/1) ... [2022-12-12 21:18:43,636 INFO L138 Inliner]: procedures = 325, calls = 53, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2022-12-12 21:18:43,637 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 21:18:43,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 21:18:43,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 21:18:43,637 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 21:18:43,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:43" (1/1) ... [2022-12-12 21:18:43,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:43" (1/1) ... [2022-12-12 21:18:43,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:43" (1/1) ... [2022-12-12 21:18:43,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:43" (1/1) ... [2022-12-12 21:18:43,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:43" (1/1) ... [2022-12-12 21:18:43,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:43" (1/1) ... [2022-12-12 21:18:43,664 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:43" (1/1) ... [2022-12-12 21:18:43,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:43" (1/1) ... [2022-12-12 21:18:43,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 21:18:43,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 21:18:43,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 21:18:43,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 21:18:43,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:43" (1/1) ... [2022-12-12 21:18:43,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:18:43,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 21:18:43,736 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) [2022-12-12 21:18:43,751 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 [2022-12-12 21:18:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 21:18:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 21:18:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 21:18:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 21:18:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 21:18:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2022-12-12 21:18:43,765 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2022-12-12 21:18:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 21:18:43,765 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 21:18:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 21:18:43,765 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 21:18:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-12 21:18:43,765 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-12 21:18:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 21:18:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-12 21:18:43,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 21:18:43,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 21:18:43,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 21:18:43,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 21:18:43,767 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 21:18:43,864 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 21:18:43,865 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 21:18:44,114 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 21:18:44,119 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 21:18:44,119 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 21:18:44,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:18:44 BoogieIcfgContainer [2022-12-12 21:18:44,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 21:18:44,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 21:18:44,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 21:18:44,125 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 21:18:44,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 09:18:43" (1/3) ... [2022-12-12 21:18:44,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22f771a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:18:44, skipping insertion in model container [2022-12-12 21:18:44,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:18:43" (2/3) ... [2022-12-12 21:18:44,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22f771a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:18:44, skipping insertion in model container [2022-12-12 21:18:44,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:18:44" (3/3) ... [2022-12-12 21:18:44,127 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2022-12-12 21:18:44,148 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 21:18:44,148 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 21:18:44,148 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 21:18:44,299 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2022-12-12 21:18:44,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 204 places, 195 transitions, 497 flow [2022-12-12 21:18:44,416 INFO L130 PetriNetUnfolder]: 7/132 cut-off events. [2022-12-12 21:18:44,416 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-12 21:18:44,424 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. [2022-12-12 21:18:44,424 INFO L82 GeneralOperation]: Start removeDead. Operand has 204 places, 195 transitions, 497 flow [2022-12-12 21:18:44,432 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 121 transitions, 293 flow [2022-12-12 21:18:44,433 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 21:18:44,450 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 121 transitions, 293 flow [2022-12-12 21:18:44,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 121 transitions, 293 flow [2022-12-12 21:18:44,493 INFO L130 PetriNetUnfolder]: 6/121 cut-off events. [2022-12-12 21:18:44,493 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-12 21:18:44,494 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. [2022-12-12 21:18:44,496 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 121 transitions, 293 flow [2022-12-12 21:18:44,496 INFO L226 LiptonReduction]: Number of co-enabled transitions 1344 [2022-12-12 21:18:46,894 INFO L241 LiptonReduction]: Total number of compositions: 85 [2022-12-12 21:18:46,904 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 21:18:46,908 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;@54ead9d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 21:18:46,909 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-12-12 21:18:46,918 INFO L130 PetriNetUnfolder]: 5/35 cut-off events. [2022-12-12 21:18:46,918 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-12 21:18:46,918 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:18:46,919 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] [2022-12-12 21:18:46,919 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)] === [2022-12-12 21:18:46,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:18:46,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1305601788, now seen corresponding path program 1 times [2022-12-12 21:18:46,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:18:46,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686115854] [2022-12-12 21:18:46,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:18:46,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:18:47,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:18:47,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:18:47,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:18:47,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686115854] [2022-12-12 21:18:47,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686115854] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:18:47,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:18:47,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:18:47,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239964019] [2022-12-12 21:18:47,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:18:47,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:18:47,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:18:47,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:18:47,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:18:47,598 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 36 [2022-12-12 21:18:47,599 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) [2022-12-12 21:18:47,599 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:18:47,599 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 36 [2022-12-12 21:18:47,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:18:47,794 INFO L130 PetriNetUnfolder]: 582/904 cut-off events. [2022-12-12 21:18:47,795 INFO L131 PetriNetUnfolder]: For 104/104 co-relation queries the response was YES. [2022-12-12 21:18:47,799 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. [2022-12-12 21:18:47,803 INFO L137 encePairwiseOnDemand]: 28/36 looper letters, 43 selfloop transitions, 7 changer transitions 11/61 dead transitions. [2022-12-12 21:18:47,803 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 61 transitions, 331 flow [2022-12-12 21:18:47,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:18:47,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:18:47,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2022-12-12 21:18:47,812 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5740740740740741 [2022-12-12 21:18:47,815 INFO L295 CegarLoopForPetriNet]: 50 programPoint places, 2 predicate places. [2022-12-12 21:18:47,815 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 61 transitions, 331 flow [2022-12-12 21:18:47,817 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 50 transitions, 266 flow [2022-12-12 21:18:47,818 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 50 transitions, 266 flow [2022-12-12 21:18:47,818 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) [2022-12-12 21:18:47,818 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:18:47,819 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] [2022-12-12 21:18:47,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 21:18:47,819 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)] === [2022-12-12 21:18:47,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:18:47,820 INFO L85 PathProgramCache]: Analyzing trace with hash -2025702419, now seen corresponding path program 1 times [2022-12-12 21:18:47,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:18:47,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388943144] [2022-12-12 21:18:47,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:18:47,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:18:47,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:18:48,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:18:48,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:18:48,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388943144] [2022-12-12 21:18:48,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388943144] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:18:48,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:18:48,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:18:48,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707693318] [2022-12-12 21:18:48,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:18:48,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:18:48,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:18:48,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:18:48,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:18:48,020 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 36 [2022-12-12 21:18:48,020 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 50 transitions, 266 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) [2022-12-12 21:18:48,020 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:18:48,020 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 36 [2022-12-12 21:18:48,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:18:48,136 INFO L130 PetriNetUnfolder]: 491/801 cut-off events. [2022-12-12 21:18:48,137 INFO L131 PetriNetUnfolder]: For 113/113 co-relation queries the response was YES. [2022-12-12 21:18:48,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2615 conditions, 801 events. 491/801 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2898 event pairs, 99 based on Foata normal form. 1/750 useless extension candidates. Maximal degree in co-relation 2594. Up to 609 conditions per place. [2022-12-12 21:18:48,140 INFO L137 encePairwiseOnDemand]: 29/36 looper letters, 0 selfloop transitions, 0 changer transitions 67/67 dead transitions. [2022-12-12 21:18:48,140 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 67 transitions, 492 flow [2022-12-12 21:18:48,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:18:48,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:18:48,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2022-12-12 21:18:48,141 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-12 21:18:48,142 INFO L295 CegarLoopForPetriNet]: 50 programPoint places, 3 predicate places. [2022-12-12 21:18:48,142 INFO L82 GeneralOperation]: Start removeDead. Operand has 53 places, 67 transitions, 492 flow [2022-12-12 21:18:48,143 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-12 21:18:48,143 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-12 21:18:48,143 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) [2022-12-12 21:18:48,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2022-12-12 21:18:48,146 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 12 remaining) [2022-12-12 21:18:48,146 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 12 remaining) [2022-12-12 21:18:48,146 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 12 remaining) [2022-12-12 21:18:48,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 12 remaining) [2022-12-12 21:18:48,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 12 remaining) [2022-12-12 21:18:48,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2022-12-12 21:18:48,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2022-12-12 21:18:48,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2022-12-12 21:18:48,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 12 remaining) [2022-12-12 21:18:48,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2022-12-12 21:18:48,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2022-12-12 21:18:48,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 21:18:48,150 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-12 21:18:48,154 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 21:18:48,154 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 21:18:48,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 09:18:48 BasicIcfg [2022-12-12 21:18:48,157 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 21:18:48,159 INFO L158 Benchmark]: Toolchain (without parser) took 5083.92ms. Allocated memory was 206.6MB in the beginning and 270.5MB in the end (delta: 64.0MB). Free memory was 180.5MB in the beginning and 121.9MB in the end (delta: 58.6MB). Peak memory consumption was 123.8MB. Max. memory is 8.0GB. [2022-12-12 21:18:48,160 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 206.6MB. Free memory is still 182.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 21:18:48,161 INFO L158 Benchmark]: CACSL2BoogieTranslator took 528.29ms. Allocated memory is still 206.6MB. Free memory was 180.5MB in the beginning and 147.2MB in the end (delta: 33.3MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2022-12-12 21:18:48,161 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.55ms. Allocated memory is still 206.6MB. Free memory was 147.2MB in the beginning and 144.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 21:18:48,162 INFO L158 Benchmark]: Boogie Preprocessor took 42.88ms. Allocated memory is still 206.6MB. Free memory was 144.6MB in the beginning and 143.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 21:18:48,162 INFO L158 Benchmark]: RCFGBuilder took 440.30ms. Allocated memory is still 206.6MB. Free memory was 143.0MB in the beginning and 126.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-12-12 21:18:48,162 INFO L158 Benchmark]: TraceAbstraction took 4034.58ms. Allocated memory was 206.6MB in the beginning and 270.5MB in the end (delta: 64.0MB). Free memory was 125.2MB in the beginning and 121.9MB in the end (delta: 3.3MB). Peak memory consumption was 68.3MB. Max. memory is 8.0GB. [2022-12-12 21:18:48,166 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 206.6MB. Free memory is still 182.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 528.29ms. Allocated memory is still 206.6MB. Free memory was 180.5MB in the beginning and 147.2MB in the end (delta: 33.3MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.55ms. Allocated memory is still 206.6MB. Free memory was 147.2MB in the beginning and 144.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.88ms. Allocated memory is still 206.6MB. Free memory was 144.6MB in the beginning and 143.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 440.30ms. Allocated memory is still 206.6MB. Free memory was 143.0MB in the beginning and 126.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 4034.58ms. Allocated memory was 206.6MB in the beginning and 270.5MB in the end (delta: 64.0MB). Free memory was 125.2MB in the beginning and 121.9MB in the end (delta: 3.3MB). Peak memory consumption was 68.3MB. 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: 9, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 9, dependent conditional: 0, dependent unconditional: 9, 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 - 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: 3.8s, 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, 167 IncrementalHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 167 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=266occurred 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: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 557 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s 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! [2022-12-12 21:18:48,181 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...