/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --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-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 23:42:27,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 23:42:27,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 23:42:27,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 23:42:27,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 23:42:27,792 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 23:42:27,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 23:42:27,797 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 23:42:27,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 23:42:27,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 23:42:27,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 23:42:27,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 23:42:27,808 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 23:42:27,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 23:42:27,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 23:42:27,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 23:42:27,812 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 23:42:27,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 23:42:27,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 23:42:27,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 23:42:27,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 23:42:27,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 23:42:27,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 23:42:27,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 23:42:27,827 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 23:42:27,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 23:42:27,827 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 23:42:27,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 23:42:27,829 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 23:42:27,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 23:42:27,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 23:42:27,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 23:42:27,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 23:42:27,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 23:42:27,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 23:42:27,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 23:42:27,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 23:42:27,836 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 23:42:27,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 23:42:27,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 23:42:27,838 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 23:42:27,839 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-11 23:42:27,860 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 23:42:27,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 23:42:27,861 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 23:42:27,861 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 23:42:27,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 23:42:27,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 23:42:27,862 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 23:42:27,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 23:42:27,863 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 23:42:27,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 23:42:27,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 23:42:27,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 23:42:27,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 23:42:27,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 23:42:27,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 23:42:27,864 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 23:42:27,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 23:42:27,864 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 23:42:27,864 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 23:42:27,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 23:42:27,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 23:42:27,865 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 23:42:27,865 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 23:42:27,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 23:42:27,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 23:42:27,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 23:42:27,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 23:42:27,865 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 23:42:27,865 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 23:42:27,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 23:42:27,866 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 23:42:27,866 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-11 23:42:28,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 23:42:28,161 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 23:42:28,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 23:42:28,163 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 23:42:28,164 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 23:42:28,165 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-11 23:42:29,223 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 23:42:29,536 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 23:42:29,536 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-11 23:42:29,570 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b69f80757/3770cf53e24b400198eec1eefac1d8a3/FLAG1a9ea54ba [2022-12-11 23:42:29,584 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b69f80757/3770cf53e24b400198eec1eefac1d8a3 [2022-12-11 23:42:29,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 23:42:29,587 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 23:42:29,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 23:42:29,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 23:42:29,591 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 23:42:29,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 11:42:29" (1/1) ... [2022-12-11 23:42:29,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b6623bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:29, skipping insertion in model container [2022-12-11 23:42:29,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 11:42:29" (1/1) ... [2022-12-11 23:42:29,597 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 23:42:29,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 23:42:29,802 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-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-11 23:42:29,939 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:29,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:29,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:29,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:29,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:29,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:29,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:29,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:29,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:29,942 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:29,942 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:29,942 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:29,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:29,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:29,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:29,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:29,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:29,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:29,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:29,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:29,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:29,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:29,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:29,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:29,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:29,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:29,954 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:29,954 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:29,955 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:29,956 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:29,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 23:42:29,964 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 23:42:29,976 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-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-11 23:42:29,993 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:29,994 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:29,994 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:29,994 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:29,994 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:29,994 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:29,994 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:29,995 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:29,995 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:29,995 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:29,995 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:29,995 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:29,995 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:29,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:29,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:29,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:29,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:29,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:29,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:29,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:29,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:29,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:29,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:29,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:30,005 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:30,005 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:30,005 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:30,006 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:30,006 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:30,006 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:30,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 23:42:30,046 INFO L208 MainTranslator]: Completed translation [2022-12-11 23:42:30,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:30 WrapperNode [2022-12-11 23:42:30,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 23:42:30,047 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 23:42:30,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 23:42:30,048 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 23:42:30,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:30" (1/1) ... [2022-12-11 23:42:30,060 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:30" (1/1) ... [2022-12-11 23:42:30,072 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-12-11 23:42:30,072 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 23:42:30,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 23:42:30,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 23:42:30,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 23:42:30,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:30" (1/1) ... [2022-12-11 23:42:30,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:30" (1/1) ... [2022-12-11 23:42:30,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:30" (1/1) ... [2022-12-11 23:42:30,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:30" (1/1) ... [2022-12-11 23:42:30,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:30" (1/1) ... [2022-12-11 23:42:30,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:30" (1/1) ... [2022-12-11 23:42:30,084 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:30" (1/1) ... [2022-12-11 23:42:30,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:30" (1/1) ... [2022-12-11 23:42:30,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 23:42:30,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 23:42:30,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 23:42:30,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 23:42:30,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:30" (1/1) ... [2022-12-11 23:42:30,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 23:42:30,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 23:42:30,108 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) [2022-12-11 23:42:30,140 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 [2022-12-11 23:42:30,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 23:42:30,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 23:42:30,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 23:42:30,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 23:42:30,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 23:42:30,159 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-11 23:42:30,159 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-11 23:42:30,159 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-11 23:42:30,159 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-11 23:42:30,159 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-11 23:42:30,159 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-11 23:42:30,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 23:42:30,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 23:42:30,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 23:42:30,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 23:42:30,161 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 23:42:30,291 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 23:42:30,292 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 23:42:30,515 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 23:42:30,520 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 23:42:30,520 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 23:42:30,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 11:42:30 BoogieIcfgContainer [2022-12-11 23:42:30,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 23:42:30,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 23:42:30,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 23:42:30,528 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 23:42:30,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 11:42:29" (1/3) ... [2022-12-11 23:42:30,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29cb4331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 11:42:30, skipping insertion in model container [2022-12-11 23:42:30,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:30" (2/3) ... [2022-12-11 23:42:30,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29cb4331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 11:42:30, skipping insertion in model container [2022-12-11 23:42:30,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 11:42:30" (3/3) ... [2022-12-11 23:42:30,530 INFO L112 eAbstractionObserver]: Analyzing ICFG safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-11 23:42:30,556 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 23:42:30,556 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 23:42:30,556 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 23:42:30,610 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-11 23:42:30,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 83 transitions, 181 flow [2022-12-11 23:42:30,658 INFO L130 PetriNetUnfolder]: 2/80 cut-off events. [2022-12-11 23:42:30,658 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 23:42:30,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 80 events. 2/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2022-12-11 23:42:30,661 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 83 transitions, 181 flow [2022-12-11 23:42:30,664 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 68 transitions, 145 flow [2022-12-11 23:42:30,670 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 23:42:30,673 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;@45832aec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 23:42:30,674 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-11 23:42:30,687 INFO L130 PetriNetUnfolder]: 1/67 cut-off events. [2022-12-11 23:42:30,687 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 23:42:30,687 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:30,687 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:30,688 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:42:30,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:30,691 INFO L85 PathProgramCache]: Analyzing trace with hash 278817250, now seen corresponding path program 1 times [2022-12-11 23:42:30,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:30,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461347963] [2022-12-11 23:42:30,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:30,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:31,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:31,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:31,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461347963] [2022-12-11 23:42:31,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461347963] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:31,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:31,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:42:31,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777919319] [2022-12-11 23:42:31,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:31,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:42:31,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:31,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:42:31,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:42:31,192 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 83 [2022-12-11 23:42:31,194 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 68 transitions, 145 flow. Second operand has 7 states, 7 states have (on average 64.71428571428571) internal successors, (453), 7 states have internal predecessors, (453), 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) [2022-12-11 23:42:31,194 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:31,194 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 83 [2022-12-11 23:42:31,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:31,393 INFO L130 PetriNetUnfolder]: 91/317 cut-off events. [2022-12-11 23:42:31,393 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-11 23:42:31,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 532 conditions, 317 events. 91/317 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1409 event pairs, 14 based on Foata normal form. 14/318 useless extension candidates. Maximal degree in co-relation 499. Up to 60 conditions per place. [2022-12-11 23:42:31,396 INFO L137 encePairwiseOnDemand]: 73/83 looper letters, 19 selfloop transitions, 5 changer transitions 35/110 dead transitions. [2022-12-11 23:42:31,396 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 110 transitions, 347 flow [2022-12-11 23:42:31,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 23:42:31,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 23:42:31,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 884 transitions. [2022-12-11 23:42:31,409 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8192771084337349 [2022-12-11 23:42:31,412 INFO L295 CegarLoopForPetriNet]: 77 programPoint places, 12 predicate places. [2022-12-11 23:42:31,412 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 110 transitions, 347 flow [2022-12-11 23:42:31,413 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 75 transitions, 207 flow [2022-12-11 23:42:31,414 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 75 transitions, 207 flow [2022-12-11 23:42:31,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 64.71428571428571) internal successors, (453), 7 states have internal predecessors, (453), 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) [2022-12-11 23:42:31,414 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:31,414 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:31,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 23:42:31,415 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:42:31,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:31,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1427880067, now seen corresponding path program 1 times [2022-12-11 23:42:31,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:31,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056012904] [2022-12-11 23:42:31,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:31,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:31,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:31,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:31,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056012904] [2022-12-11 23:42:31,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056012904] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:31,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:31,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:42:31,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168451045] [2022-12-11 23:42:31,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:31,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:42:31,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:31,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:42:31,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:42:31,674 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 83 [2022-12-11 23:42:31,675 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 75 transitions, 207 flow. Second operand has 7 states, 7 states have (on average 63.0) internal successors, (441), 7 states have internal predecessors, (441), 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) [2022-12-11 23:42:31,675 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:31,675 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 83 [2022-12-11 23:42:31,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:32,022 INFO L130 PetriNetUnfolder]: 234/698 cut-off events. [2022-12-11 23:42:32,022 INFO L131 PetriNetUnfolder]: For 60/227 co-relation queries the response was YES. [2022-12-11 23:42:32,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1487 conditions, 698 events. 234/698 cut-off events. For 60/227 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 4209 event pairs, 5 based on Foata normal form. 21/704 useless extension candidates. Maximal degree in co-relation 1447. Up to 202 conditions per place. [2022-12-11 23:42:32,026 INFO L137 encePairwiseOnDemand]: 72/83 looper letters, 37 selfloop transitions, 18 changer transitions 68/172 dead transitions. [2022-12-11 23:42:32,026 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 172 transitions, 839 flow [2022-12-11 23:42:32,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-11 23:42:32,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-11 23:42:32,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1138 transitions. [2022-12-11 23:42:32,029 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8065201984408221 [2022-12-11 23:42:32,030 INFO L295 CegarLoopForPetriNet]: 77 programPoint places, 19 predicate places. [2022-12-11 23:42:32,030 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 172 transitions, 839 flow [2022-12-11 23:42:32,032 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 104 transitions, 443 flow [2022-12-11 23:42:32,032 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 104 transitions, 443 flow [2022-12-11 23:42:32,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 63.0) internal successors, (441), 7 states have internal predecessors, (441), 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) [2022-12-11 23:42:32,032 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:32,032 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:32,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 23:42:32,033 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:42:32,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:32,033 INFO L85 PathProgramCache]: Analyzing trace with hash -464342396, now seen corresponding path program 1 times [2022-12-11 23:42:32,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:32,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143135370] [2022-12-11 23:42:32,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:32,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:32,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:32,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:32,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:32,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143135370] [2022-12-11 23:42:32,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143135370] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:32,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:32,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 23:42:32,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615380890] [2022-12-11 23:42:32,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:32,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 23:42:32,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:32,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 23:42:32,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-11 23:42:32,172 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 83 [2022-12-11 23:42:32,173 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 104 transitions, 443 flow. Second operand has 8 states, 8 states have (on average 62.875) internal successors, (503), 8 states have internal predecessors, (503), 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) [2022-12-11 23:42:32,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:32,173 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 83 [2022-12-11 23:42:32,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:32,315 INFO L130 PetriNetUnfolder]: 126/454 cut-off events. [2022-12-11 23:42:32,316 INFO L131 PetriNetUnfolder]: For 136/614 co-relation queries the response was YES. [2022-12-11 23:42:32,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1226 conditions, 454 events. 126/454 cut-off events. For 136/614 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2395 event pairs, 11 based on Foata normal form. 26/467 useless extension candidates. Maximal degree in co-relation 1179. Up to 131 conditions per place. [2022-12-11 23:42:32,318 INFO L137 encePairwiseOnDemand]: 72/83 looper letters, 25 selfloop transitions, 9 changer transitions 54/137 dead transitions. [2022-12-11 23:42:32,318 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 137 transitions, 805 flow [2022-12-11 23:42:32,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-11 23:42:32,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-11 23:42:32,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 728 transitions. [2022-12-11 23:42:32,319 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7973713033953997 [2022-12-11 23:42:32,320 INFO L295 CegarLoopForPetriNet]: 77 programPoint places, 17 predicate places. [2022-12-11 23:42:32,320 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 137 transitions, 805 flow [2022-12-11 23:42:32,321 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 83 transitions, 385 flow [2022-12-11 23:42:32,321 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 83 transitions, 385 flow [2022-12-11 23:42:32,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 62.875) internal successors, (503), 8 states have internal predecessors, (503), 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) [2022-12-11 23:42:32,322 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:32,322 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:32,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 23:42:32,322 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:42:32,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:32,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1449170274, now seen corresponding path program 1 times [2022-12-11 23:42:32,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:32,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450429301] [2022-12-11 23:42:32,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:32,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:32,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:32,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:32,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:32,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450429301] [2022-12-11 23:42:32,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450429301] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:32,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:32,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:42:32,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227773802] [2022-12-11 23:42:32,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:32,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:42:32,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:32,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:42:32,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:42:32,448 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 83 [2022-12-11 23:42:32,449 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 83 transitions, 385 flow. Second operand has 7 states, 7 states have (on average 64.85714285714286) internal successors, (454), 7 states have internal predecessors, (454), 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) [2022-12-11 23:42:32,449 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:32,449 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 83 [2022-12-11 23:42:32,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:32,600 INFO L130 PetriNetUnfolder]: 62/297 cut-off events. [2022-12-11 23:42:32,601 INFO L131 PetriNetUnfolder]: For 180/352 co-relation queries the response was YES. [2022-12-11 23:42:32,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 919 conditions, 297 events. 62/297 cut-off events. For 180/352 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1374 event pairs, 5 based on Foata normal form. 15/305 useless extension candidates. Maximal degree in co-relation 866. Up to 91 conditions per place. [2022-12-11 23:42:32,603 INFO L137 encePairwiseOnDemand]: 74/83 looper letters, 23 selfloop transitions, 9 changer transitions 28/112 dead transitions. [2022-12-11 23:42:32,603 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 112 transitions, 737 flow [2022-12-11 23:42:32,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 23:42:32,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 23:42:32,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 876 transitions. [2022-12-11 23:42:32,605 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8118628359592215 [2022-12-11 23:42:32,606 INFO L295 CegarLoopForPetriNet]: 77 programPoint places, 23 predicate places. [2022-12-11 23:42:32,607 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 112 transitions, 737 flow [2022-12-11 23:42:32,608 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 84 transitions, 457 flow [2022-12-11 23:42:32,608 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 84 transitions, 457 flow [2022-12-11 23:42:32,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 64.85714285714286) internal successors, (454), 7 states have internal predecessors, (454), 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) [2022-12-11 23:42:32,609 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:32,609 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:32,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 23:42:32,609 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:42:32,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:32,610 INFO L85 PathProgramCache]: Analyzing trace with hash -563965533, now seen corresponding path program 1 times [2022-12-11 23:42:32,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:32,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117658724] [2022-12-11 23:42:32,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:32,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:32,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:32,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:32,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117658724] [2022-12-11 23:42:32,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117658724] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:32,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:32,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 23:42:32,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705108395] [2022-12-11 23:42:32,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:32,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 23:42:32,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:32,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 23:42:32,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 23:42:32,755 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 83 [2022-12-11 23:42:32,756 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 84 transitions, 457 flow. Second operand has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 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) [2022-12-11 23:42:32,756 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:32,756 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 83 [2022-12-11 23:42:32,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:32,880 INFO L130 PetriNetUnfolder]: 343/912 cut-off events. [2022-12-11 23:42:32,880 INFO L131 PetriNetUnfolder]: For 437/556 co-relation queries the response was YES. [2022-12-11 23:42:32,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2219 conditions, 912 events. 343/912 cut-off events. For 437/556 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 5945 event pairs, 10 based on Foata normal form. 2/868 useless extension candidates. Maximal degree in co-relation 2162. Up to 233 conditions per place. [2022-12-11 23:42:32,885 INFO L137 encePairwiseOnDemand]: 73/83 looper letters, 32 selfloop transitions, 15 changer transitions 5/118 dead transitions. [2022-12-11 23:42:32,885 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 118 transitions, 673 flow [2022-12-11 23:42:32,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 23:42:32,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 23:42:32,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 708 transitions. [2022-12-11 23:42:32,887 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8530120481927711 [2022-12-11 23:42:32,889 INFO L295 CegarLoopForPetriNet]: 77 programPoint places, 23 predicate places. [2022-12-11 23:42:32,889 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 118 transitions, 673 flow [2022-12-11 23:42:32,893 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 113 transitions, 653 flow [2022-12-11 23:42:32,893 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 113 transitions, 653 flow [2022-12-11 23:42:32,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 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) [2022-12-11 23:42:32,893 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:32,893 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:32,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 23:42:32,893 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:42:32,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:32,895 INFO L85 PathProgramCache]: Analyzing trace with hash 659471289, now seen corresponding path program 1 times [2022-12-11 23:42:32,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:32,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883270425] [2022-12-11 23:42:32,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:32,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:33,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:33,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:33,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883270425] [2022-12-11 23:42:33,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883270425] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:33,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:33,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:42:33,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368959604] [2022-12-11 23:42:33,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:33,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:42:33,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:33,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:42:33,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:42:33,046 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 83 [2022-12-11 23:42:33,046 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 113 transitions, 653 flow. Second operand has 7 states, 7 states have (on average 67.57142857142857) internal successors, (473), 7 states have internal predecessors, (473), 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) [2022-12-11 23:42:33,046 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:33,046 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 83 [2022-12-11 23:42:33,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:33,198 INFO L130 PetriNetUnfolder]: 254/824 cut-off events. [2022-12-11 23:42:33,198 INFO L131 PetriNetUnfolder]: For 591/879 co-relation queries the response was YES. [2022-12-11 23:42:33,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2280 conditions, 824 events. 254/824 cut-off events. For 591/879 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 5810 event pairs, 0 based on Foata normal form. 51/849 useless extension candidates. Maximal degree in co-relation 2219. Up to 224 conditions per place. [2022-12-11 23:42:33,202 INFO L137 encePairwiseOnDemand]: 73/83 looper letters, 34 selfloop transitions, 36 changer transitions 20/156 dead transitions. [2022-12-11 23:42:33,202 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 156 transitions, 1016 flow [2022-12-11 23:42:33,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 23:42:33,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 23:42:33,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 918 transitions. [2022-12-11 23:42:33,204 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8507877664504171 [2022-12-11 23:42:33,206 INFO L295 CegarLoopForPetriNet]: 77 programPoint places, 35 predicate places. [2022-12-11 23:42:33,206 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 156 transitions, 1016 flow [2022-12-11 23:42:33,208 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 112 places, 136 transitions, 896 flow [2022-12-11 23:42:33,208 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 136 transitions, 896 flow [2022-12-11 23:42:33,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.57142857142857) internal successors, (473), 7 states have internal predecessors, (473), 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) [2022-12-11 23:42:33,209 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:33,209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:33,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 23:42:33,209 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:42:33,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:33,210 INFO L85 PathProgramCache]: Analyzing trace with hash -605400898, now seen corresponding path program 1 times [2022-12-11 23:42:33,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:33,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723767494] [2022-12-11 23:42:33,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:33,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:33,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:33,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:33,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:33,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723767494] [2022-12-11 23:42:33,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723767494] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:33,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:33,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 23:42:33,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180697582] [2022-12-11 23:42:33,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:33,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 23:42:33,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:33,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 23:42:33,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-11 23:42:33,351 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 83 [2022-12-11 23:42:33,352 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 136 transitions, 896 flow. Second operand has 8 states, 8 states have (on average 67.5) internal successors, (540), 8 states have internal predecessors, (540), 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) [2022-12-11 23:42:33,356 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:33,356 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 83 [2022-12-11 23:42:33,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:33,555 INFO L130 PetriNetUnfolder]: 184/674 cut-off events. [2022-12-11 23:42:33,555 INFO L131 PetriNetUnfolder]: For 805/1383 co-relation queries the response was YES. [2022-12-11 23:42:33,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2243 conditions, 674 events. 184/674 cut-off events. For 805/1383 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 4935 event pairs, 0 based on Foata normal form. 80/732 useless extension candidates. Maximal degree in co-relation 2178. Up to 174 conditions per place. [2022-12-11 23:42:33,558 INFO L137 encePairwiseOnDemand]: 73/83 looper letters, 28 selfloop transitions, 40 changer transitions 23/151 dead transitions. [2022-12-11 23:42:33,558 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 151 transitions, 1148 flow [2022-12-11 23:42:33,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-11 23:42:33,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-11 23:42:33,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1114 transitions. [2022-12-11 23:42:33,561 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.838855421686747 [2022-12-11 23:42:33,561 INFO L295 CegarLoopForPetriNet]: 77 programPoint places, 50 predicate places. [2022-12-11 23:42:33,561 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 151 transitions, 1148 flow [2022-12-11 23:42:33,563 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 128 transitions, 927 flow [2022-12-11 23:42:33,563 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 128 transitions, 927 flow [2022-12-11 23:42:33,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 67.5) internal successors, (540), 8 states have internal predecessors, (540), 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) [2022-12-11 23:42:33,564 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:33,564 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:33,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-11 23:42:33,564 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:42:33,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:33,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1230955805, now seen corresponding path program 1 times [2022-12-11 23:42:33,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:33,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483392458] [2022-12-11 23:42:33,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:33,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:33,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:33,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:33,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483392458] [2022-12-11 23:42:33,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483392458] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:33,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:33,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:42:33,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686686820] [2022-12-11 23:42:33,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:33,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:42:33,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:33,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:42:33,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:42:33,739 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 83 [2022-12-11 23:42:33,740 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 128 transitions, 927 flow. Second operand has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 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) [2022-12-11 23:42:33,740 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:33,740 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 83 [2022-12-11 23:42:33,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:33,817 INFO L130 PetriNetUnfolder]: 135/516 cut-off events. [2022-12-11 23:42:33,817 INFO L131 PetriNetUnfolder]: For 596/717 co-relation queries the response was YES. [2022-12-11 23:42:33,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1747 conditions, 516 events. 135/516 cut-off events. For 596/717 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 3623 event pairs, 0 based on Foata normal form. 7/498 useless extension candidates. Maximal degree in co-relation 1677. Up to 128 conditions per place. [2022-12-11 23:42:33,820 INFO L137 encePairwiseOnDemand]: 77/83 looper letters, 0 selfloop transitions, 0 changer transitions 126/126 dead transitions. [2022-12-11 23:42:33,820 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 126 transitions, 959 flow [2022-12-11 23:42:33,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 23:42:33,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 23:42:33,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 470 transitions. [2022-12-11 23:42:33,821 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8089500860585198 [2022-12-11 23:42:33,822 INFO L295 CegarLoopForPetriNet]: 77 programPoint places, 51 predicate places. [2022-12-11 23:42:33,822 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 126 transitions, 959 flow [2022-12-11 23:42:33,823 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-11 23:42:33,823 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-11 23:42:33,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 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) [2022-12-11 23:42:33,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-11 23:42:33,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-11 23:42:33,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-11 23:42:33,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-11 23:42:33,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-11 23:42:33,831 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:33,838 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 23:42:33,838 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 23:42:33,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 11:42:33 BasicIcfg [2022-12-11 23:42:33,847 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 23:42:33,847 INFO L158 Benchmark]: Toolchain (without parser) took 4259.96ms. Allocated memory was 195.0MB in the beginning and 282.1MB in the end (delta: 87.0MB). Free memory was 169.9MB in the beginning and 143.9MB in the end (delta: 26.0MB). Peak memory consumption was 114.3MB. Max. memory is 8.0GB. [2022-12-11 23:42:33,847 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 195.0MB. Free memory is still 172.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 23:42:33,848 INFO L158 Benchmark]: CACSL2BoogieTranslator took 457.46ms. Allocated memory is still 195.0MB. Free memory was 169.9MB in the beginning and 146.5MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-11 23:42:33,848 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.03ms. Allocated memory is still 195.0MB. Free memory was 146.5MB in the beginning and 144.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 23:42:33,848 INFO L158 Benchmark]: Boogie Preprocessor took 13.34ms. Allocated memory is still 195.0MB. Free memory was 144.4MB in the beginning and 142.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 23:42:33,848 INFO L158 Benchmark]: RCFGBuilder took 435.41ms. Allocated memory is still 195.0MB. Free memory was 142.8MB in the beginning and 129.7MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-11 23:42:33,848 INFO L158 Benchmark]: TraceAbstraction took 3321.51ms. Allocated memory was 195.0MB in the beginning and 282.1MB in the end (delta: 87.0MB). Free memory was 128.1MB in the beginning and 143.9MB in the end (delta: -15.8MB). Peak memory consumption was 72.3MB. Max. memory is 8.0GB. [2022-12-11 23:42:33,849 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 195.0MB. Free memory is still 172.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 457.46ms. Allocated memory is still 195.0MB. Free memory was 169.9MB in the beginning and 146.5MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.03ms. Allocated memory is still 195.0MB. Free memory was 146.5MB in the beginning and 144.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.34ms. Allocated memory is still 195.0MB. Free memory was 144.4MB in the beginning and 142.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 435.41ms. Allocated memory is still 195.0MB. Free memory was 142.8MB in the beginning and 129.7MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3321.51ms. Allocated memory was 195.0MB in the beginning and 282.1MB in the end (delta: 87.0MB). Free memory was 128.1MB in the beginning and 143.9MB in the end (delta: -15.8MB). Peak memory consumption was 72.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: 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 7 procedures, 105 locations, 4 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: 3.2s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 442 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 442 mSDsluCounter, 477 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 375 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 542 IncrementalHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 102 mSDtfsCounter, 542 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=927occurred in iteration=7, InterpolantAutomatonStates: 100, 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, 8 MinimizatonAttempts, 2556 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 435 NumberOfCodeBlocks, 435 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 427 ConstructedInterpolants, 0 QuantifiedInterpolants, 1595 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! [2022-12-11 23:42:33,877 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...