/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 17:39:02,833 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 17:39:02,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 17:39:02,872 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 17:39:02,873 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 17:39:02,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 17:39:02,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 17:39:02,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 17:39:02,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 17:39:02,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 17:39:02,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 17:39:02,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 17:39:02,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 17:39:02,907 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 17:39:02,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 17:39:02,911 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 17:39:02,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 17:39:02,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 17:39:02,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 17:39:02,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 17:39:02,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 17:39:02,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 17:39:02,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 17:39:02,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 17:39:02,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 17:39:02,932 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 17:39:02,933 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 17:39:02,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 17:39:02,934 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 17:39:02,935 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 17:39:02,935 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 17:39:02,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 17:39:02,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 17:39:02,938 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 17:39:02,939 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 17:39:02,939 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 17:39:02,940 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 17:39:02,940 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 17:39:02,940 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 17:39:02,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 17:39:02,942 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 17:39:02,943 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 [2022-12-06 17:39:02,974 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 17:39:02,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 17:39:02,976 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 17:39:02,976 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 17:39:02,977 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 17:39:02,977 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 17:39:02,977 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 17:39:02,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 17:39:02,978 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 17:39:02,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 17:39:02,979 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 17:39:02,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 17:39:02,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 17:39:02,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 17:39:02,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 17:39:02,979 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 17:39:02,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 17:39:02,980 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 17:39:02,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 17:39:02,980 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 17:39:02,980 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 17:39:02,980 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 17:39:02,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 17:39:02,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 17:39:02,981 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 17:39:02,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 17:39:02,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 17:39:02,981 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 17:39:02,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 17:39:02,982 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 17:39:02,982 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 17:39:02,982 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 17:39:03,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 17:39:03,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 17:39:03,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 17:39:03,314 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 17:39:03,314 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 17:39:03,315 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2022-12-06 17:39:04,512 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 17:39:04,719 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 17:39:04,720 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2022-12-06 17:39:04,730 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/213e902c9/874f4b2fc6a743e897ff76efa832e753/FLAG5a47561ce [2022-12-06 17:39:04,746 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/213e902c9/874f4b2fc6a743e897ff76efa832e753 [2022-12-06 17:39:04,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 17:39:04,749 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 17:39:04,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 17:39:04,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 17:39:04,754 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 17:39:04,755 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:39:04" (1/1) ... [2022-12-06 17:39:04,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d96c7a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:04, skipping insertion in model container [2022-12-06 17:39:04,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:39:04" (1/1) ... [2022-12-06 17:39:04,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 17:39:04,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 17:39:04,935 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:04,937 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:04,938 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:04,939 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:04,939 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:04,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:04,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:04,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:04,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:04,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:04,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:04,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:04,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:04,947 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:04,947 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:04,948 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:04,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:04,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:04,950 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:04,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:04,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:04,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:04,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:04,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:04,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:04,954 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:04,971 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c[3089,3102] [2022-12-06 17:39:04,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 17:39:04,990 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 17:39:05,006 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:05,007 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:05,007 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:05,007 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:05,008 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:05,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:05,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:05,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:05,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:05,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:05,011 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:05,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:05,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:05,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:05,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:05,014 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:05,014 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:05,014 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:05,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:05,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:05,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:05,016 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:05,016 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:05,017 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:05,017 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:05,017 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:05,035 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c[3089,3102] [2022-12-06 17:39:05,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 17:39:05,047 INFO L208 MainTranslator]: Completed translation [2022-12-06 17:39:05,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:05 WrapperNode [2022-12-06 17:39:05,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 17:39:05,049 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 17:39:05,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 17:39:05,049 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 17:39:05,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:05" (1/1) ... [2022-12-06 17:39:05,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:05" (1/1) ... [2022-12-06 17:39:05,098 INFO L138 Inliner]: procedures = 22, calls = 55, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 158 [2022-12-06 17:39:05,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 17:39:05,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 17:39:05,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 17:39:05,101 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 17:39:05,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:05" (1/1) ... [2022-12-06 17:39:05,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:05" (1/1) ... [2022-12-06 17:39:05,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:05" (1/1) ... [2022-12-06 17:39:05,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:05" (1/1) ... [2022-12-06 17:39:05,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:05" (1/1) ... [2022-12-06 17:39:05,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:05" (1/1) ... [2022-12-06 17:39:05,130 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:05" (1/1) ... [2022-12-06 17:39:05,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:05" (1/1) ... [2022-12-06 17:39:05,133 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 17:39:05,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 17:39:05,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 17:39:05,134 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 17:39:05,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:05" (1/1) ... [2022-12-06 17:39:05,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 17:39:05,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 17:39:05,172 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) [2022-12-06 17:39:05,200 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 [2022-12-06 17:39:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 17:39:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 17:39:05,216 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 17:39:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 17:39:05,217 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 17:39:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 17:39:05,217 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 17:39:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 17:39:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 17:39:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 17:39:05,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 17:39:05,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 17:39:05,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 17:39:05,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 17:39:05,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 17:39:05,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 17:39:05,219 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 17:39:05,325 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 17:39:05,327 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 17:39:05,526 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 17:39:05,583 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 17:39:05,583 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 17:39:05,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:39:05 BoogieIcfgContainer [2022-12-06 17:39:05,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 17:39:05,587 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 17:39:05,587 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 17:39:05,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 17:39:05,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:39:04" (1/3) ... [2022-12-06 17:39:05,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bbcf5e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:39:05, skipping insertion in model container [2022-12-06 17:39:05,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:05" (2/3) ... [2022-12-06 17:39:05,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bbcf5e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:39:05, skipping insertion in model container [2022-12-06 17:39:05,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:39:05" (3/3) ... [2022-12-06 17:39:05,592 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2022-12-06 17:39:05,608 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 17:39:05,608 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 17:39:05,608 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 17:39:05,662 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-06 17:39:05,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 112 transitions, 248 flow [2022-12-06 17:39:05,758 INFO L130 PetriNetUnfolder]: 2/109 cut-off events. [2022-12-06 17:39:05,758 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 17:39:05,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 109 events. 2/109 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2022-12-06 17:39:05,762 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 112 transitions, 248 flow [2022-12-06 17:39:05,765 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 99 transitions, 216 flow [2022-12-06 17:39:05,774 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 17:39:05,780 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;@4e2e5e06, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 17:39:05,780 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 17:39:05,813 INFO L130 PetriNetUnfolder]: 2/98 cut-off events. [2022-12-06 17:39:05,814 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 17:39:05,814 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:05,815 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:05,815 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)] === [2022-12-06 17:39:05,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:05,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1928227823, now seen corresponding path program 1 times [2022-12-06 17:39:05,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:05,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466160752] [2022-12-06 17:39:05,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:05,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:06,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:07,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:07,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:07,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466160752] [2022-12-06 17:39:07,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466160752] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:07,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:07,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:39:07,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016771737] [2022-12-06 17:39:07,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:07,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:39:07,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:07,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:39:07,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:39:07,187 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 112 [2022-12-06 17:39:07,197 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 99 transitions, 216 flow. Second operand has 10 states, 10 states have (on average 79.1) internal successors, (791), 10 states have internal predecessors, (791), 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) [2022-12-06 17:39:07,198 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:07,200 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 112 [2022-12-06 17:39:07,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:39:07,776 INFO L130 PetriNetUnfolder]: 372/916 cut-off events. [2022-12-06 17:39:07,776 INFO L131 PetriNetUnfolder]: For 208/216 co-relation queries the response was YES. [2022-12-06 17:39:07,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1721 conditions, 916 events. 372/916 cut-off events. For 208/216 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4905 event pairs, 201 based on Foata normal form. 3/873 useless extension candidates. Maximal degree in co-relation 1291. Up to 323 conditions per place. [2022-12-06 17:39:07,788 INFO L137 encePairwiseOnDemand]: 97/112 looper letters, 34 selfloop transitions, 7 changer transitions 30/135 dead transitions. [2022-12-06 17:39:07,788 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 135 transitions, 454 flow [2022-12-06 17:39:07,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 17:39:07,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 17:39:07,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 987 transitions. [2022-12-06 17:39:07,808 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.734375 [2022-12-06 17:39:07,812 INFO L294 CegarLoopForPetriNet]: 107 programPoint places, 11 predicate places. [2022-12-06 17:39:07,812 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 135 transitions, 454 flow [2022-12-06 17:39:07,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 79.1) internal successors, (791), 10 states have internal predecessors, (791), 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) [2022-12-06 17:39:07,813 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:07,813 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:07,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 17:39:07,814 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)] === [2022-12-06 17:39:07,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:07,815 INFO L85 PathProgramCache]: Analyzing trace with hash 712106315, now seen corresponding path program 2 times [2022-12-06 17:39:07,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:07,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555467344] [2022-12-06 17:39:07,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:07,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:07,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:08,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:08,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:08,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555467344] [2022-12-06 17:39:08,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555467344] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:08,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:08,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 17:39:08,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254333785] [2022-12-06 17:39:08,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:08,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 17:39:08,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:08,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 17:39:08,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-12-06 17:39:08,080 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 112 [2022-12-06 17:39:08,081 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 135 transitions, 454 flow. Second operand has 7 states, 7 states have (on average 82.14285714285714) internal successors, (575), 7 states have internal predecessors, (575), 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) [2022-12-06 17:39:08,081 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:08,081 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 112 [2022-12-06 17:39:08,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:39:08,363 INFO L130 PetriNetUnfolder]: 550/1422 cut-off events. [2022-12-06 17:39:08,363 INFO L131 PetriNetUnfolder]: For 919/1377 co-relation queries the response was YES. [2022-12-06 17:39:08,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3550 conditions, 1422 events. 550/1422 cut-off events. For 919/1377 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 9546 event pairs, 91 based on Foata normal form. 36/1427 useless extension candidates. Maximal degree in co-relation 3144. Up to 523 conditions per place. [2022-12-06 17:39:08,374 INFO L137 encePairwiseOnDemand]: 101/112 looper letters, 60 selfloop transitions, 19 changer transitions 71/219 dead transitions. [2022-12-06 17:39:08,374 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 219 transitions, 1149 flow [2022-12-06 17:39:08,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 17:39:08,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 17:39:08,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 695 transitions. [2022-12-06 17:39:08,377 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7756696428571429 [2022-12-06 17:39:08,377 INFO L294 CegarLoopForPetriNet]: 107 programPoint places, 18 predicate places. [2022-12-06 17:39:08,377 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 219 transitions, 1149 flow [2022-12-06 17:39:08,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.14285714285714) internal successors, (575), 7 states have internal predecessors, (575), 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) [2022-12-06 17:39:08,378 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:08,378 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:08,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 17:39:08,379 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)] === [2022-12-06 17:39:08,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:08,382 INFO L85 PathProgramCache]: Analyzing trace with hash 963998909, now seen corresponding path program 3 times [2022-12-06 17:39:08,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:08,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534193202] [2022-12-06 17:39:08,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:08,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:08,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:08,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:08,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:08,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534193202] [2022-12-06 17:39:08,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534193202] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:08,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:08,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 17:39:08,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825972792] [2022-12-06 17:39:08,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:08,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 17:39:08,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:08,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 17:39:08,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-12-06 17:39:08,629 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 112 [2022-12-06 17:39:08,630 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 219 transitions, 1149 flow. Second operand has 7 states, 7 states have (on average 82.14285714285714) internal successors, (575), 7 states have internal predecessors, (575), 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) [2022-12-06 17:39:08,630 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:08,630 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 112 [2022-12-06 17:39:08,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:39:08,874 INFO L130 PetriNetUnfolder]: 473/1294 cut-off events. [2022-12-06 17:39:08,874 INFO L131 PetriNetUnfolder]: For 1774/2783 co-relation queries the response was YES. [2022-12-06 17:39:08,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4032 conditions, 1294 events. 473/1294 cut-off events. For 1774/2783 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 8876 event pairs, 85 based on Foata normal form. 77/1332 useless extension candidates. Maximal degree in co-relation 2584. Up to 450 conditions per place. [2022-12-06 17:39:08,883 INFO L137 encePairwiseOnDemand]: 101/112 looper letters, 62 selfloop transitions, 20 changer transitions 85/236 dead transitions. [2022-12-06 17:39:08,883 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 236 transitions, 1581 flow [2022-12-06 17:39:08,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 17:39:08,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 17:39:08,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 694 transitions. [2022-12-06 17:39:08,886 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7745535714285714 [2022-12-06 17:39:08,887 INFO L294 CegarLoopForPetriNet]: 107 programPoint places, 25 predicate places. [2022-12-06 17:39:08,887 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 236 transitions, 1581 flow [2022-12-06 17:39:08,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.14285714285714) internal successors, (575), 7 states have internal predecessors, (575), 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) [2022-12-06 17:39:08,888 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:08,889 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:08,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 17:39:08,889 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)] === [2022-12-06 17:39:08,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:08,890 INFO L85 PathProgramCache]: Analyzing trace with hash -583175351, now seen corresponding path program 4 times [2022-12-06 17:39:08,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:08,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001804566] [2022-12-06 17:39:08,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:08,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:08,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:09,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:09,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:09,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001804566] [2022-12-06 17:39:09,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001804566] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:09,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:09,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 17:39:09,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675380656] [2022-12-06 17:39:09,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:09,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 17:39:09,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:09,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 17:39:09,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-12-06 17:39:09,130 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 112 [2022-12-06 17:39:09,131 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 236 transitions, 1581 flow. Second operand has 7 states, 7 states have (on average 82.14285714285714) internal successors, (575), 7 states have internal predecessors, (575), 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) [2022-12-06 17:39:09,131 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:09,131 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 112 [2022-12-06 17:39:09,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:39:09,357 INFO L130 PetriNetUnfolder]: 326/996 cut-off events. [2022-12-06 17:39:09,358 INFO L131 PetriNetUnfolder]: For 2461/3195 co-relation queries the response was YES. [2022-12-06 17:39:09,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3693 conditions, 996 events. 326/996 cut-off events. For 2461/3195 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 6672 event pairs, 79 based on Foata normal form. 48/1013 useless extension candidates. Maximal degree in co-relation 2157. Up to 340 conditions per place. [2022-12-06 17:39:09,364 INFO L137 encePairwiseOnDemand]: 101/112 looper letters, 67 selfloop transitions, 28 changer transitions 84/247 dead transitions. [2022-12-06 17:39:09,366 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 247 transitions, 2021 flow [2022-12-06 17:39:09,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 17:39:09,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 17:39:09,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 694 transitions. [2022-12-06 17:39:09,372 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7745535714285714 [2022-12-06 17:39:09,373 INFO L294 CegarLoopForPetriNet]: 107 programPoint places, 32 predicate places. [2022-12-06 17:39:09,373 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 247 transitions, 2021 flow [2022-12-06 17:39:09,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.14285714285714) internal successors, (575), 7 states have internal predecessors, (575), 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) [2022-12-06 17:39:09,374 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:09,374 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:09,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 17:39:09,374 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)] === [2022-12-06 17:39:09,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:09,375 INFO L85 PathProgramCache]: Analyzing trace with hash -779877325, now seen corresponding path program 5 times [2022-12-06 17:39:09,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:09,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379034037] [2022-12-06 17:39:09,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:09,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:09,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:09,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:09,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379034037] [2022-12-06 17:39:09,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379034037] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:09,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:09,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:39:09,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746899107] [2022-12-06 17:39:09,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:09,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:39:09,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:09,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:39:09,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:39:09,963 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 112 [2022-12-06 17:39:09,964 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 247 transitions, 2021 flow. Second operand has 10 states, 10 states have (on average 79.1) internal successors, (791), 10 states have internal predecessors, (791), 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) [2022-12-06 17:39:09,964 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:09,964 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 112 [2022-12-06 17:39:09,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:39:10,397 INFO L130 PetriNetUnfolder]: 339/1085 cut-off events. [2022-12-06 17:39:10,397 INFO L131 PetriNetUnfolder]: For 3324/4293 co-relation queries the response was YES. [2022-12-06 17:39:10,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4725 conditions, 1085 events. 339/1085 cut-off events. For 3324/4293 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 7655 event pairs, 41 based on Foata normal form. 15/1079 useless extension candidates. Maximal degree in co-relation 2769. Up to 381 conditions per place. [2022-12-06 17:39:10,403 INFO L137 encePairwiseOnDemand]: 98/112 looper letters, 76 selfloop transitions, 10 changer transitions 154/304 dead transitions. [2022-12-06 17:39:10,403 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 304 transitions, 3077 flow [2022-12-06 17:39:10,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 17:39:10,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 17:39:10,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 993 transitions. [2022-12-06 17:39:10,406 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7388392857142857 [2022-12-06 17:39:10,406 INFO L294 CegarLoopForPetriNet]: 107 programPoint places, 43 predicate places. [2022-12-06 17:39:10,406 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 304 transitions, 3077 flow [2022-12-06 17:39:10,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 79.1) internal successors, (791), 10 states have internal predecessors, (791), 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) [2022-12-06 17:39:10,407 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:10,407 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:10,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 17:39:10,408 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)] === [2022-12-06 17:39:10,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:10,408 INFO L85 PathProgramCache]: Analyzing trace with hash 2028910471, now seen corresponding path program 6 times [2022-12-06 17:39:10,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:10,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893203352] [2022-12-06 17:39:10,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:10,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:10,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:10,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:10,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:10,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893203352] [2022-12-06 17:39:10,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893203352] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:10,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:10,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 17:39:10,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449081828] [2022-12-06 17:39:10,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:10,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 17:39:10,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:10,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 17:39:10,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-06 17:39:10,609 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 112 [2022-12-06 17:39:10,610 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 304 transitions, 3077 flow. Second operand has 8 states, 8 states have (on average 81.625) internal successors, (653), 8 states have internal predecessors, (653), 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) [2022-12-06 17:39:10,610 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:10,610 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 112 [2022-12-06 17:39:10,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:39:10,877 INFO L130 PetriNetUnfolder]: 357/1212 cut-off events. [2022-12-06 17:39:10,877 INFO L131 PetriNetUnfolder]: For 5610/7087 co-relation queries the response was YES. [2022-12-06 17:39:10,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5960 conditions, 1212 events. 357/1212 cut-off events. For 5610/7087 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 9025 event pairs, 41 based on Foata normal form. 58/1247 useless extension candidates. Maximal degree in co-relation 3261. Up to 426 conditions per place. [2022-12-06 17:39:10,884 INFO L137 encePairwiseOnDemand]: 101/112 looper letters, 54 selfloop transitions, 30 changer transitions 230/382 dead transitions. [2022-12-06 17:39:10,884 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 382 transitions, 4697 flow [2022-12-06 17:39:10,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 17:39:10,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 17:39:10,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 773 transitions. [2022-12-06 17:39:10,889 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7668650793650794 [2022-12-06 17:39:10,892 INFO L294 CegarLoopForPetriNet]: 107 programPoint places, 51 predicate places. [2022-12-06 17:39:10,892 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 382 transitions, 4697 flow [2022-12-06 17:39:10,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 81.625) internal successors, (653), 8 states have internal predecessors, (653), 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) [2022-12-06 17:39:10,892 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:10,892 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:10,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 17:39:10,893 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)] === [2022-12-06 17:39:10,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:10,893 INFO L85 PathProgramCache]: Analyzing trace with hash -587051573, now seen corresponding path program 7 times [2022-12-06 17:39:10,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:10,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94006171] [2022-12-06 17:39:10,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:10,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:10,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:11,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:11,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:11,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94006171] [2022-12-06 17:39:11,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94006171] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:11,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:11,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 17:39:11,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29865574] [2022-12-06 17:39:11,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:11,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 17:39:11,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:11,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 17:39:11,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-12-06 17:39:11,118 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 112 [2022-12-06 17:39:11,120 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 382 transitions, 4697 flow. Second operand has 9 states, 9 states have (on average 81.22222222222223) internal successors, (731), 9 states have internal predecessors, (731), 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) [2022-12-06 17:39:11,120 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:11,120 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 112 [2022-12-06 17:39:11,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:39:11,423 INFO L130 PetriNetUnfolder]: 360/1243 cut-off events. [2022-12-06 17:39:11,423 INFO L131 PetriNetUnfolder]: For 8259/10790 co-relation queries the response was YES. [2022-12-06 17:39:11,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6790 conditions, 1243 events. 360/1243 cut-off events. For 8259/10790 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 9321 event pairs, 47 based on Foata normal form. 131/1340 useless extension candidates. Maximal degree in co-relation 3726. Up to 435 conditions per place. [2022-12-06 17:39:11,430 INFO L137 encePairwiseOnDemand]: 101/112 looper letters, 51 selfloop transitions, 28 changer transitions 245/392 dead transitions. [2022-12-06 17:39:11,430 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 392 transitions, 5469 flow [2022-12-06 17:39:11,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-06 17:39:11,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-06 17:39:11,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 938 transitions. [2022-12-06 17:39:11,433 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7613636363636364 [2022-12-06 17:39:11,434 INFO L294 CegarLoopForPetriNet]: 107 programPoint places, 61 predicate places. [2022-12-06 17:39:11,434 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 392 transitions, 5469 flow [2022-12-06 17:39:11,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 81.22222222222223) internal successors, (731), 9 states have internal predecessors, (731), 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) [2022-12-06 17:39:11,434 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:11,434 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:11,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 17:39:11,435 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)] === [2022-12-06 17:39:11,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:11,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1817528495, now seen corresponding path program 8 times [2022-12-06 17:39:11,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:11,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127390168] [2022-12-06 17:39:11,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:11,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:11,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:11,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:11,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:11,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127390168] [2022-12-06 17:39:11,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127390168] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:11,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:11,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 17:39:11,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163100534] [2022-12-06 17:39:11,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:11,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 17:39:11,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:11,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 17:39:11,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-12-06 17:39:11,661 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 112 [2022-12-06 17:39:11,662 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 392 transitions, 5469 flow. Second operand has 9 states, 9 states have (on average 81.22222222222223) internal successors, (731), 9 states have internal predecessors, (731), 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) [2022-12-06 17:39:11,662 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:11,662 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 112 [2022-12-06 17:39:11,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:39:11,991 INFO L130 PetriNetUnfolder]: 328/1191 cut-off events. [2022-12-06 17:39:11,991 INFO L131 PetriNetUnfolder]: For 10619/13859 co-relation queries the response was YES. [2022-12-06 17:39:11,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7132 conditions, 1191 events. 328/1191 cut-off events. For 10619/13859 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 8975 event pairs, 47 based on Foata normal form. 142/1299 useless extension candidates. Maximal degree in co-relation 3820. Up to 415 conditions per place. [2022-12-06 17:39:11,997 INFO L137 encePairwiseOnDemand]: 101/112 looper letters, 36 selfloop transitions, 16 changer transitions 271/389 dead transitions. [2022-12-06 17:39:11,997 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 389 transitions, 6050 flow [2022-12-06 17:39:11,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-06 17:39:11,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-06 17:39:11,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 938 transitions. [2022-12-06 17:39:11,999 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7613636363636364 [2022-12-06 17:39:12,001 INFO L294 CegarLoopForPetriNet]: 107 programPoint places, 71 predicate places. [2022-12-06 17:39:12,001 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 389 transitions, 6050 flow [2022-12-06 17:39:12,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 81.22222222222223) internal successors, (731), 9 states have internal predecessors, (731), 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) [2022-12-06 17:39:12,002 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:12,002 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:12,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 17:39:12,002 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 17:39:12,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:12,003 INFO L85 PathProgramCache]: Analyzing trace with hash 966849279, now seen corresponding path program 9 times [2022-12-06 17:39:12,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:12,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663030776] [2022-12-06 17:39:12,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:12,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:12,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:12,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:12,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:12,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663030776] [2022-12-06 17:39:12,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663030776] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:12,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:12,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 17:39:12,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941485118] [2022-12-06 17:39:12,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:12,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 17:39:12,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:12,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 17:39:12,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-12-06 17:39:12,216 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 112 [2022-12-06 17:39:12,217 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 389 transitions, 6050 flow. Second operand has 9 states, 9 states have (on average 81.22222222222223) internal successors, (731), 9 states have internal predecessors, (731), 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) [2022-12-06 17:39:12,217 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:12,217 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 112 [2022-12-06 17:39:12,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:39:12,541 INFO L130 PetriNetUnfolder]: 252/951 cut-off events. [2022-12-06 17:39:12,541 INFO L131 PetriNetUnfolder]: For 11050/14275 co-relation queries the response was YES. [2022-12-06 17:39:12,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6508 conditions, 951 events. 252/951 cut-off events. For 11050/14275 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 7082 event pairs, 34 based on Foata normal form. 139/1064 useless extension candidates. Maximal degree in co-relation 5282. Up to 309 conditions per place. [2022-12-06 17:39:12,545 INFO L137 encePairwiseOnDemand]: 101/112 looper letters, 0 selfloop transitions, 0 changer transitions 356/356 dead transitions. [2022-12-06 17:39:12,545 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 356 transitions, 6061 flow [2022-12-06 17:39:12,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-06 17:39:12,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-06 17:39:12,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 938 transitions. [2022-12-06 17:39:12,548 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7613636363636364 [2022-12-06 17:39:12,549 INFO L294 CegarLoopForPetriNet]: 107 programPoint places, 78 predicate places. [2022-12-06 17:39:12,549 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 356 transitions, 6061 flow [2022-12-06 17:39:12,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 81.22222222222223) internal successors, (731), 9 states have internal predecessors, (731), 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) [2022-12-06 17:39:12,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-06 17:39:12,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-06 17:39:12,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-06 17:39:12,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-06 17:39:12,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-06 17:39:12,553 INFO L458 BasicCegarLoop]: Path program histogram: [9] [2022-12-06 17:39:12,556 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 17:39:12,556 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 17:39:12,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 05:39:12 BasicIcfg [2022-12-06 17:39:12,561 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 17:39:12,562 INFO L158 Benchmark]: Toolchain (without parser) took 7812.50ms. Allocated memory was 177.2MB in the beginning and 380.6MB in the end (delta: 203.4MB). Free memory was 144.8MB in the beginning and 316.9MB in the end (delta: -172.1MB). Peak memory consumption was 183.4MB. Max. memory is 8.0GB. [2022-12-06 17:39:12,562 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 177.2MB. Free memory is still 154.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 17:39:12,562 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.38ms. Allocated memory is still 177.2MB. Free memory was 144.8MB in the beginning and 130.6MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-06 17:39:12,562 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.42ms. Allocated memory is still 177.2MB. Free memory was 130.6MB in the beginning and 129.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 17:39:12,563 INFO L158 Benchmark]: Boogie Preprocessor took 33.06ms. Allocated memory is still 177.2MB. Free memory was 129.1MB in the beginning and 127.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 17:39:12,563 INFO L158 Benchmark]: RCFGBuilder took 451.38ms. Allocated memory is still 177.2MB. Free memory was 127.5MB in the beginning and 108.1MB in the end (delta: 19.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-06 17:39:12,563 INFO L158 Benchmark]: TraceAbstraction took 6974.22ms. Allocated memory was 177.2MB in the beginning and 380.6MB in the end (delta: 203.4MB). Free memory was 107.6MB in the beginning and 316.9MB in the end (delta: -209.3MB). Peak memory consumption was 146.7MB. Max. memory is 8.0GB. [2022-12-06 17:39:12,565 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 177.2MB. Free memory is still 154.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 296.38ms. Allocated memory is still 177.2MB. Free memory was 144.8MB in the beginning and 130.6MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.42ms. Allocated memory is still 177.2MB. Free memory was 130.6MB in the beginning and 129.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.06ms. Allocated memory is still 177.2MB. Free memory was 129.1MB in the beginning and 127.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 451.38ms. Allocated memory is still 177.2MB. Free memory was 127.5MB in the beginning and 108.1MB in the end (delta: 19.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 6974.22ms. Allocated memory was 177.2MB in the beginning and 380.6MB in the end (delta: 203.4MB). Free memory was 107.6MB in the beginning and 316.9MB in the end (delta: -209.3MB). Peak memory consumption was 146.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 124]: 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, 136 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: 6.9s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 509 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 509 mSDsluCounter, 442 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 308 mSDsCounter, 139 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1607 IncrementalHoareTripleChecker+Invalid, 1746 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 139 mSolverCounterUnsat, 134 mSDtfsCounter, 1607 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6061occurred in iteration=9, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 855 NumberOfCodeBlocks, 855 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 846 ConstructedInterpolants, 0 QuantifiedInterpolants, 2303 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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! [2022-12-06 17:39:12,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...