/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/pthread-wmm/safe012_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 21:03:34,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 21:03:34,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 21:03:34,754 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 21:03:34,755 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 21:03:34,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 21:03:34,775 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 21:03:34,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 21:03:34,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 21:03:34,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 21:03:34,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 21:03:34,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 21:03:34,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 21:03:34,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 21:03:34,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 21:03:34,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 21:03:34,794 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 21:03:34,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 21:03:34,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 21:03:34,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 21:03:34,799 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 21:03:34,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 21:03:34,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 21:03:34,805 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 21:03:34,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 21:03:34,817 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 21:03:34,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 21:03:34,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 21:03:34,819 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 21:03:34,820 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 21:03:34,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 21:03:34,822 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 21:03:34,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 21:03:34,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 21:03:34,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 21:03:34,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 21:03:34,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 21:03:34,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 21:03:34,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 21:03:34,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 21:03:34,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 21:03:34,828 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-11 21:03:34,865 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 21:03:34,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 21:03:34,866 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 21:03:34,866 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 21:03:34,867 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 21:03:34,868 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 21:03:34,868 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 21:03:34,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 21:03:34,868 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 21:03:34,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 21:03:34,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 21:03:34,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 21:03:34,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 21:03:34,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 21:03:34,870 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 21:03:34,870 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 21:03:34,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 21:03:34,870 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 21:03:34,870 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 21:03:34,870 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 21:03:34,870 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 21:03:34,871 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 21:03:34,871 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 21:03:34,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 21:03:34,871 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 21:03:34,871 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 21:03:34,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 21:03:34,871 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 21:03:34,872 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 21:03:34,872 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 21:03:34,872 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 21:03:34,872 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-11 21:03:35,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 21:03:35,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 21:03:35,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 21:03:35,201 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 21:03:35,202 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 21:03:35,203 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.i [2022-12-11 21:03:36,262 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 21:03:36,511 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 21:03:36,512 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe012_tso.i [2022-12-11 21:03:36,532 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5da8366f/3a6734ef4ee640c2ab8145a2824f21b4/FLAG80ec21b18 [2022-12-11 21:03:36,546 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5da8366f/3a6734ef4ee640c2ab8145a2824f21b4 [2022-12-11 21:03:36,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 21:03:36,550 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 21:03:36,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 21:03:36,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 21:03:36,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 21:03:36,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 09:03:36" (1/1) ... [2022-12-11 21:03:36,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61ff9a0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:36, skipping insertion in model container [2022-12-11 21:03:36,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 09:03:36" (1/1) ... [2022-12-11 21:03:36,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 21:03:36,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 21:03:36,726 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe012_tso.i[945,958] [2022-12-11 21:03:36,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,901 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,904 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,904 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,904 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,906 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,915 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,917 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,920 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 21:03:36,930 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 21:03:36,942 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe012_tso.i[945,958] [2022-12-11 21:03:36,973 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,974 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,974 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,974 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,974 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,974 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,975 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,975 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,976 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,976 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,976 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,976 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,977 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,977 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,977 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,977 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,978 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,978 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,978 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,978 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,984 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,984 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:36,986 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:36,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 21:03:37,029 INFO L208 MainTranslator]: Completed translation [2022-12-11 21:03:37,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:37 WrapperNode [2022-12-11 21:03:37,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 21:03:37,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 21:03:37,031 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 21:03:37,031 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 21:03:37,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:37" (1/1) ... [2022-12-11 21:03:37,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:37" (1/1) ... [2022-12-11 21:03:37,087 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2022-12-11 21:03:37,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 21:03:37,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 21:03:37,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 21:03:37,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 21:03:37,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:37" (1/1) ... [2022-12-11 21:03:37,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:37" (1/1) ... [2022-12-11 21:03:37,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:37" (1/1) ... [2022-12-11 21:03:37,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:37" (1/1) ... [2022-12-11 21:03:37,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:37" (1/1) ... [2022-12-11 21:03:37,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:37" (1/1) ... [2022-12-11 21:03:37,122 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:37" (1/1) ... [2022-12-11 21:03:37,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:37" (1/1) ... [2022-12-11 21:03:37,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 21:03:37,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 21:03:37,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 21:03:37,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 21:03:37,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:37" (1/1) ... [2022-12-11 21:03:37,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 21:03:37,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 21:03:37,169 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-11 21:03:37,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-11 21:03:37,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 21:03:37,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 21:03:37,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 21:03:37,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 21:03:37,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 21:03:37,213 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-11 21:03:37,213 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-11 21:03:37,213 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-11 21:03:37,214 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-11 21:03:37,214 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-11 21:03:37,214 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-11 21:03:37,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 21:03:37,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 21:03:37,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 21:03:37,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 21:03:37,216 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 21:03:37,391 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 21:03:37,392 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 21:03:37,560 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 21:03:37,566 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 21:03:37,567 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 21:03:37,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 09:03:37 BoogieIcfgContainer [2022-12-11 21:03:37,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 21:03:37,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 21:03:37,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 21:03:37,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 21:03:37,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 09:03:36" (1/3) ... [2022-12-11 21:03:37,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a69b63b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 09:03:37, skipping insertion in model container [2022-12-11 21:03:37,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:37" (2/3) ... [2022-12-11 21:03:37,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a69b63b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 09:03:37, skipping insertion in model container [2022-12-11 21:03:37,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 09:03:37" (3/3) ... [2022-12-11 21:03:37,576 INFO L112 eAbstractionObserver]: Analyzing ICFG safe012_tso.i [2022-12-11 21:03:37,590 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 21:03:37,590 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 21:03:37,590 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 21:03:37,648 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-11 21:03:37,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 86 transitions, 187 flow [2022-12-11 21:03:37,722 INFO L130 PetriNetUnfolder]: 2/83 cut-off events. [2022-12-11 21:03:37,722 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 21:03:37,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-11 21:03:37,727 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 86 transitions, 187 flow [2022-12-11 21:03:37,731 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 71 transitions, 151 flow [2022-12-11 21:03:37,740 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 21:03:37,746 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;@74c77d6a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 21:03:37,746 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-11 21:03:37,765 INFO L130 PetriNetUnfolder]: 1/70 cut-off events. [2022-12-11 21:03:37,766 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 21:03:37,766 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:03:37,766 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:03:37,767 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 21:03:37,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:03:37,772 INFO L85 PathProgramCache]: Analyzing trace with hash -2039717973, now seen corresponding path program 1 times [2022-12-11 21:03:37,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:03:37,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510740599] [2022-12-11 21:03:37,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:03:37,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:03:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:03:38,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:03:38,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:03:38,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510740599] [2022-12-11 21:03:38,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510740599] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:03:38,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:03:38,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:03:38,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373558152] [2022-12-11 21:03:38,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:03:38,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:03:38,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:03:38,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:03:38,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:03:38,711 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 86 [2022-12-11 21:03:38,715 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 71 transitions, 151 flow. Second operand has 7 states, 7 states have (on average 68.71428571428571) internal successors, (481), 7 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:03:38,715 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:03:38,715 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 86 [2022-12-11 21:03:38,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:03:38,926 INFO L130 PetriNetUnfolder]: 50/189 cut-off events. [2022-12-11 21:03:38,927 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-11 21:03:38,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 189 events. 50/189 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 599 event pairs, 10 based on Foata normal form. 8/190 useless extension candidates. Maximal degree in co-relation 283. Up to 55 conditions per place. [2022-12-11 21:03:38,931 INFO L137 encePairwiseOnDemand]: 79/86 looper letters, 16 selfloop transitions, 2 changer transitions 19/92 dead transitions. [2022-12-11 21:03:38,931 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 92 transitions, 273 flow [2022-12-11 21:03:38,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-11 21:03:38,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-11 21:03:38,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 644 transitions. [2022-12-11 21:03:38,950 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8320413436692506 [2022-12-11 21:03:38,955 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 8 predicate places. [2022-12-11 21:03:38,956 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 92 transitions, 273 flow [2022-12-11 21:03:38,960 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 73 transitions, 197 flow [2022-12-11 21:03:38,961 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 73 transitions, 197 flow [2022-12-11 21:03:38,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.71428571428571) internal successors, (481), 7 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:03:38,962 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:03:38,962 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:03:38,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 21:03:38,963 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 21:03:38,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:03:38,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1299479532, now seen corresponding path program 1 times [2022-12-11 21:03:38,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:03:38,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462434612] [2022-12-11 21:03:38,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:03:38,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:03:39,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:03:39,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:03:39,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:03:39,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462434612] [2022-12-11 21:03:39,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462434612] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:03:39,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:03:39,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:03:39,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283472302] [2022-12-11 21:03:39,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:03:39,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:03:39,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:03:39,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:03:39,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:03:39,247 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 86 [2022-12-11 21:03:39,250 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 73 transitions, 197 flow. Second operand has 7 states, 7 states have (on average 68.85714285714286) internal successors, (482), 7 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:03:39,250 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:03:39,250 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 86 [2022-12-11 21:03:39,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:03:39,414 INFO L130 PetriNetUnfolder]: 25/183 cut-off events. [2022-12-11 21:03:39,414 INFO L131 PetriNetUnfolder]: For 31/53 co-relation queries the response was YES. [2022-12-11 21:03:39,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 183 events. 25/183 cut-off events. For 31/53 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 552 event pairs, 2 based on Foata normal form. 4/180 useless extension candidates. Maximal degree in co-relation 296. Up to 60 conditions per place. [2022-12-11 21:03:39,418 INFO L137 encePairwiseOnDemand]: 78/86 looper letters, 15 selfloop transitions, 5 changer transitions 16/91 dead transitions. [2022-12-11 21:03:39,418 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 91 transitions, 341 flow [2022-12-11 21:03:39,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 21:03:39,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 21:03:39,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 705 transitions. [2022-12-11 21:03:39,421 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8197674418604651 [2022-12-11 21:03:39,422 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 11 predicate places. [2022-12-11 21:03:39,422 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 91 transitions, 341 flow [2022-12-11 21:03:39,424 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 75 transitions, 245 flow [2022-12-11 21:03:39,424 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 75 transitions, 245 flow [2022-12-11 21:03:39,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.85714285714286) internal successors, (482), 7 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:03:39,425 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:03:39,425 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:03:39,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 21:03:39,425 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 21:03:39,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:03:39,426 INFO L85 PathProgramCache]: Analyzing trace with hash 778762157, now seen corresponding path program 1 times [2022-12-11 21:03:39,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:03:39,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908599946] [2022-12-11 21:03:39,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:03:39,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:03:39,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:03:39,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:03:39,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:03:39,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908599946] [2022-12-11 21:03:39,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908599946] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:03:39,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:03:39,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:03:39,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567415046] [2022-12-11 21:03:39,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:03:39,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:03:39,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:03:39,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:03:39,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:03:39,671 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 86 [2022-12-11 21:03:39,672 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 75 transitions, 245 flow. Second operand has 7 states, 7 states have (on average 70.71428571428571) internal successors, (495), 7 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:03:39,672 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:03:39,672 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 86 [2022-12-11 21:03:39,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:03:39,826 INFO L130 PetriNetUnfolder]: 32/212 cut-off events. [2022-12-11 21:03:39,826 INFO L131 PetriNetUnfolder]: For 119/189 co-relation queries the response was YES. [2022-12-11 21:03:39,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 440 conditions, 212 events. 32/212 cut-off events. For 119/189 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 801 event pairs, 2 based on Foata normal form. 4/205 useless extension candidates. Maximal degree in co-relation 394. Up to 61 conditions per place. [2022-12-11 21:03:39,829 INFO L137 encePairwiseOnDemand]: 78/86 looper letters, 13 selfloop transitions, 5 changer transitions 13/90 dead transitions. [2022-12-11 21:03:39,829 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 90 transitions, 391 flow [2022-12-11 21:03:39,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 21:03:39,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 21:03:39,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 718 transitions. [2022-12-11 21:03:39,831 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8348837209302326 [2022-12-11 21:03:39,832 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 14 predicate places. [2022-12-11 21:03:39,832 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 90 transitions, 391 flow [2022-12-11 21:03:39,833 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 77 transitions, 299 flow [2022-12-11 21:03:39,834 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 77 transitions, 299 flow [2022-12-11 21:03:39,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.71428571428571) internal successors, (495), 7 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:03:39,834 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:03:39,834 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:03:39,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 21:03:39,835 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 21:03:39,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:03:39,836 INFO L85 PathProgramCache]: Analyzing trace with hash -19621850, now seen corresponding path program 1 times [2022-12-11 21:03:39,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:03:39,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469747130] [2022-12-11 21:03:39,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:03:39,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:03:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:03:40,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:03:40,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:03:40,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469747130] [2022-12-11 21:03:40,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469747130] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:03:40,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:03:40,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 21:03:40,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676269288] [2022-12-11 21:03:40,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:03:40,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 21:03:40,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:03:40,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 21:03:40,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-11 21:03:40,022 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 86 [2022-12-11 21:03:40,023 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 77 transitions, 299 flow. Second operand has 8 states, 8 states have (on average 66.875) internal successors, (535), 8 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:03:40,023 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:03:40,023 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 86 [2022-12-11 21:03:40,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:03:40,161 INFO L130 PetriNetUnfolder]: 31/167 cut-off events. [2022-12-11 21:03:40,161 INFO L131 PetriNetUnfolder]: For 196/349 co-relation queries the response was YES. [2022-12-11 21:03:40,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 167 events. 31/167 cut-off events. For 196/349 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 429 event pairs, 5 based on Foata normal form. 4/163 useless extension candidates. Maximal degree in co-relation 405. Up to 61 conditions per place. [2022-12-11 21:03:40,164 INFO L137 encePairwiseOnDemand]: 78/86 looper letters, 18 selfloop transitions, 4 changer transitions 22/97 dead transitions. [2022-12-11 21:03:40,164 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 97 transitions, 511 flow [2022-12-11 21:03:40,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 21:03:40,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 21:03:40,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 689 transitions. [2022-12-11 21:03:40,166 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8011627906976744 [2022-12-11 21:03:40,167 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 17 predicate places. [2022-12-11 21:03:40,168 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 97 transitions, 511 flow [2022-12-11 21:03:40,169 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 75 transitions, 324 flow [2022-12-11 21:03:40,169 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 75 transitions, 324 flow [2022-12-11 21:03:40,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 66.875) internal successors, (535), 8 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:03:40,170 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:03:40,170 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:03:40,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 21:03:40,170 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 21:03:40,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:03:40,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1742340890, now seen corresponding path program 1 times [2022-12-11 21:03:40,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:03:40,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901359501] [2022-12-11 21:03:40,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:03:40,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:03:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:03:40,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:03:40,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:03:40,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901359501] [2022-12-11 21:03:40,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901359501] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:03:40,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:03:40,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 21:03:40,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672257067] [2022-12-11 21:03:40,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:03:40,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 21:03:40,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:03:40,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 21:03:40,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 21:03:40,368 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 86 [2022-12-11 21:03:40,369 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 75 transitions, 324 flow. Second operand has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:03:40,369 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:03:40,369 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 86 [2022-12-11 21:03:40,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:03:40,515 INFO L130 PetriNetUnfolder]: 171/505 cut-off events. [2022-12-11 21:03:40,515 INFO L131 PetriNetUnfolder]: For 394/495 co-relation queries the response was YES. [2022-12-11 21:03:40,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1189 conditions, 505 events. 171/505 cut-off events. For 394/495 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2829 event pairs, 18 based on Foata normal form. 2/486 useless extension candidates. Maximal degree in co-relation 1132. Up to 109 conditions per place. [2022-12-11 21:03:40,519 INFO L137 encePairwiseOnDemand]: 76/86 looper letters, 18 selfloop transitions, 8 changer transitions 25/108 dead transitions. [2022-12-11 21:03:40,519 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 108 transitions, 523 flow [2022-12-11 21:03:40,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 21:03:40,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 21:03:40,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 738 transitions. [2022-12-11 21:03:40,521 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.858139534883721 [2022-12-11 21:03:40,524 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 20 predicate places. [2022-12-11 21:03:40,524 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 108 transitions, 523 flow [2022-12-11 21:03:40,528 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 83 transitions, 375 flow [2022-12-11 21:03:40,528 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 83 transitions, 375 flow [2022-12-11 21:03:40,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:03:40,528 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:03:40,529 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:03:40,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 21:03:40,529 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 21:03:40,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:03:40,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1534137635, now seen corresponding path program 1 times [2022-12-11 21:03:40,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:03:40,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856063435] [2022-12-11 21:03:40,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:03:40,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:03:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:03:40,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:03:40,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:03:40,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856063435] [2022-12-11 21:03:40,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856063435] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:03:40,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:03:40,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:03:40,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635925072] [2022-12-11 21:03:40,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:03:40,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:03:40,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:03:40,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:03:40,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:03:40,701 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 86 [2022-12-11 21:03:40,702 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 83 transitions, 375 flow. Second operand has 7 states, 7 states have (on average 70.57142857142857) internal successors, (494), 7 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:03:40,702 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:03:40,702 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 86 [2022-12-11 21:03:40,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:03:40,856 INFO L130 PetriNetUnfolder]: 65/274 cut-off events. [2022-12-11 21:03:40,856 INFO L131 PetriNetUnfolder]: For 234/331 co-relation queries the response was YES. [2022-12-11 21:03:40,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 746 conditions, 274 events. 65/274 cut-off events. For 234/331 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1148 event pairs, 5 based on Foata normal form. 24/294 useless extension candidates. Maximal degree in co-relation 685. Up to 97 conditions per place. [2022-12-11 21:03:40,858 INFO L137 encePairwiseOnDemand]: 77/86 looper letters, 18 selfloop transitions, 11 changer transitions 25/111 dead transitions. [2022-12-11 21:03:40,858 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 111 transitions, 595 flow [2022-12-11 21:03:40,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-11 21:03:40,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-11 21:03:40,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 877 transitions. [2022-12-11 21:03:40,860 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8498062015503876 [2022-12-11 21:03:40,861 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 28 predicate places. [2022-12-11 21:03:40,861 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 111 transitions, 595 flow [2022-12-11 21:03:40,862 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 86 transitions, 445 flow [2022-12-11 21:03:40,862 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 86 transitions, 445 flow [2022-12-11 21:03:40,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.57142857142857) internal successors, (494), 7 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:03:40,863 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:03:40,863 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:03:40,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 21:03:40,863 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 21:03:40,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:03:40,864 INFO L85 PathProgramCache]: Analyzing trace with hash -505443020, now seen corresponding path program 1 times [2022-12-11 21:03:40,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:03:40,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467145515] [2022-12-11 21:03:40,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:03:40,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:03:40,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:03:41,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:03:41,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:03:41,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467145515] [2022-12-11 21:03:41,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467145515] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:03:41,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:03:41,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 21:03:41,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791276758] [2022-12-11 21:03:41,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:03:41,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 21:03:41,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:03:41,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 21:03:41,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-11 21:03:41,022 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 86 [2022-12-11 21:03:41,023 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 86 transitions, 445 flow. Second operand has 8 states, 8 states have (on average 70.5) internal successors, (564), 8 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:03:41,023 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:03:41,023 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 86 [2022-12-11 21:03:41,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:03:41,185 INFO L130 PetriNetUnfolder]: 23/174 cut-off events. [2022-12-11 21:03:41,186 INFO L131 PetriNetUnfolder]: For 299/342 co-relation queries the response was YES. [2022-12-11 21:03:41,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 512 conditions, 174 events. 23/174 cut-off events. For 299/342 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 562 event pairs, 0 based on Foata normal form. 13/185 useless extension candidates. Maximal degree in co-relation 447. Up to 33 conditions per place. [2022-12-11 21:03:41,187 INFO L137 encePairwiseOnDemand]: 77/86 looper letters, 12 selfloop transitions, 14 changer transitions 16/99 dead transitions. [2022-12-11 21:03:41,187 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 99 transitions, 607 flow [2022-12-11 21:03:41,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 21:03:41,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 21:03:41,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 937 transitions. [2022-12-11 21:03:41,190 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8381037567084079 [2022-12-11 21:03:41,190 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 36 predicate places. [2022-12-11 21:03:41,190 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 99 transitions, 607 flow [2022-12-11 21:03:41,191 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 112 places, 83 transitions, 479 flow [2022-12-11 21:03:41,191 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 83 transitions, 479 flow [2022-12-11 21:03:41,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 70.5) internal successors, (564), 8 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:03:41,192 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:03:41,192 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:03:41,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-11 21:03:41,193 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 21:03:41,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:03:41,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1165203001, now seen corresponding path program 1 times [2022-12-11 21:03:41,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:03:41,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26295056] [2022-12-11 21:03:41,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:03:41,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:03:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:03:41,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:03:41,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:03:41,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26295056] [2022-12-11 21:03:41,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26295056] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:03:41,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:03:41,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:03:41,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021757841] [2022-12-11 21:03:41,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:03:41,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:03:41,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:03:41,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:03:41,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:03:41,357 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 86 [2022-12-11 21:03:41,358 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 83 transitions, 479 flow. Second operand has 7 states, 7 states have (on average 70.85714285714286) internal successors, (496), 7 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:03:41,358 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:03:41,358 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 86 [2022-12-11 21:03:41,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:03:41,444 INFO L130 PetriNetUnfolder]: 13/135 cut-off events. [2022-12-11 21:03:41,444 INFO L131 PetriNetUnfolder]: For 445/489 co-relation queries the response was YES. [2022-12-11 21:03:41,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 400 conditions, 135 events. 13/135 cut-off events. For 445/489 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 352 event pairs, 0 based on Foata normal form. 3/134 useless extension candidates. Maximal degree in co-relation 330. Up to 26 conditions per place. [2022-12-11 21:03:41,445 INFO L137 encePairwiseOnDemand]: 80/86 looper letters, 0 selfloop transitions, 0 changer transitions 82/82 dead transitions. [2022-12-11 21:03:41,445 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 82 transitions, 516 flow [2022-12-11 21:03:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 21:03:41,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 21:03:41,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 497 transitions. [2022-12-11 21:03:41,447 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8255813953488372 [2022-12-11 21:03:41,447 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 36 predicate places. [2022-12-11 21:03:41,447 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 82 transitions, 516 flow [2022-12-11 21:03:41,448 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-11 21:03:41,448 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-11 21:03:41,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.85714285714286) internal successors, (496), 7 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:03:41,451 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-11 21:03:41,451 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-11 21:03:41,452 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-11 21:03:41,452 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-11 21:03:41,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-11 21:03:41,452 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:03:41,455 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 21:03:41,455 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 21:03:41,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 09:03:41 BasicIcfg [2022-12-11 21:03:41,460 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 21:03:41,460 INFO L158 Benchmark]: Toolchain (without parser) took 4910.66ms. Allocated memory was 179.3MB in the beginning and 263.2MB in the end (delta: 83.9MB). Free memory was 154.1MB in the beginning and 230.5MB in the end (delta: -76.4MB). Peak memory consumption was 8.7MB. Max. memory is 8.0GB. [2022-12-11 21:03:41,461 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 179.3MB. Free memory is still 155.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 21:03:41,461 INFO L158 Benchmark]: CACSL2BoogieTranslator took 478.02ms. Allocated memory is still 179.3MB. Free memory was 153.8MB in the beginning and 130.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-11 21:03:41,461 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.79ms. Allocated memory is still 179.3MB. Free memory was 130.8MB in the beginning and 128.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 21:03:41,462 INFO L158 Benchmark]: Boogie Preprocessor took 35.02ms. Allocated memory is still 179.3MB. Free memory was 128.7MB in the beginning and 127.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 21:03:41,462 INFO L158 Benchmark]: RCFGBuilder took 443.71ms. Allocated memory is still 179.3MB. Free memory was 127.1MB in the beginning and 112.9MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-11 21:03:41,462 INFO L158 Benchmark]: TraceAbstraction took 3888.84ms. Allocated memory was 179.3MB in the beginning and 263.2MB in the end (delta: 83.9MB). Free memory was 111.9MB in the beginning and 230.5MB in the end (delta: -118.7MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 21:03:41,464 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 179.3MB. Free memory is still 155.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 478.02ms. Allocated memory is still 179.3MB. Free memory was 153.8MB in the beginning and 130.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.79ms. Allocated memory is still 179.3MB. Free memory was 130.8MB in the beginning and 128.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.02ms. Allocated memory is still 179.3MB. Free memory was 128.7MB in the beginning and 127.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 443.71ms. Allocated memory is still 179.3MB. Free memory was 127.1MB in the beginning and 112.9MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3888.84ms. Allocated memory was 179.3MB in the beginning and 263.2MB in the end (delta: 83.9MB). Free memory was 111.9MB in the beginning and 230.5MB in the end (delta: -118.7MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 109 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.8s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 308 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 308 mSDsluCounter, 327 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 252 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 418 IncrementalHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 75 mSDtfsCounter, 418 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=479occurred in iteration=7, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 1393 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 460 NumberOfCodeBlocks, 460 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 452 ConstructedInterpolants, 0 QuantifiedInterpolants, 1714 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-11 21:03:41,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...