/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 09:35:35,084 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 09:35:35,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 09:35:35,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 09:35:35,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 09:35:35,147 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 09:35:35,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 09:35:35,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 09:35:35,157 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 09:35:35,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 09:35:35,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 09:35:35,159 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 09:35:35,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 09:35:35,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 09:35:35,162 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 09:35:35,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 09:35:35,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 09:35:35,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 09:35:35,165 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 09:35:35,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 09:35:35,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 09:35:35,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 09:35:35,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 09:35:35,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 09:35:35,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 09:35:35,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 09:35:35,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 09:35:35,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 09:35:35,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 09:35:35,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 09:35:35,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 09:35:35,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 09:35:35,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 09:35:35,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 09:35:35,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 09:35:35,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 09:35:35,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 09:35:35,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 09:35:35,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 09:35:35,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 09:35:35,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 09:35:35,184 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-RepeatedSemanticLbeWithPredicates.epf [2022-12-13 09:35:35,218 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 09:35:35,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 09:35:35,220 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 09:35:35,220 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 09:35:35,220 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 09:35:35,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 09:35:35,221 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 09:35:35,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 09:35:35,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 09:35:35,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 09:35:35,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 09:35:35,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 09:35:35,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 09:35:35,223 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 09:35:35,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 09:35:35,223 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 09:35:35,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 09:35:35,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 09:35:35,224 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 09:35:35,224 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 09:35:35,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 09:35:35,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 09:35:35,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 09:35:35,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 09:35:35,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 09:35:35,225 INFO L138 SettingsManager]: * Use conditional commutativity for large block encoding in concurrent analysis=CONDITIONAL_CONJUNCTIVE [2022-12-13 09:35:35,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 09:35:35,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 09:35:35,225 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 09:35:35,225 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-13 09:35:35,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 09:35:35,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 09:35:35,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 09:35:35,577 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 09:35:35,578 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 09:35:35,579 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-13 09:35:36,756 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 09:35:37,018 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 09:35:37,019 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-13 09:35:37,030 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7c3fc191/16f9e4c69d504e1fb3fb1cad20ba0f0e/FLAG9c6b014e5 [2022-12-13 09:35:37,045 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7c3fc191/16f9e4c69d504e1fb3fb1cad20ba0f0e [2022-12-13 09:35:37,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 09:35:37,048 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 09:35:37,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 09:35:37,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 09:35:37,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 09:35:37,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:35:37" (1/1) ... [2022-12-13 09:35:37,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37b8e325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:35:37, skipping insertion in model container [2022-12-13 09:35:37,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:35:37" (1/1) ... [2022-12-13 09:35:37,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 09:35:37,100 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 09:35:37,234 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/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-13 09:35:37,399 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,400 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,400 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,401 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,401 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,401 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,402 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,402 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,403 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,403 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,403 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,403 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,403 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,404 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,404 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,404 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,405 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,405 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,405 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,405 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,406 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,406 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,417 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,417 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 09:35:37,429 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 09:35:37,441 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/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-13 09:35:37,494 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,494 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,495 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,495 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,495 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,495 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,495 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,496 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,496 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,496 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,496 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,497 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,497 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,497 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,497 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,498 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,498 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,501 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,501 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,502 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,502 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,502 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,505 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,505 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,505 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,506 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,506 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:35:37,506 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:35:37,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 09:35:37,544 INFO L208 MainTranslator]: Completed translation [2022-12-13 09:35:37,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:35:37 WrapperNode [2022-12-13 09:35:37,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 09:35:37,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 09:35:37,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 09:35:37,547 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 09:35:37,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:35:37" (1/1) ... [2022-12-13 09:35:37,581 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:35:37" (1/1) ... [2022-12-13 09:35:37,603 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-12-13 09:35:37,604 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 09:35:37,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 09:35:37,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 09:35:37,605 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 09:35:37,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:35:37" (1/1) ... [2022-12-13 09:35:37,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:35:37" (1/1) ... [2022-12-13 09:35:37,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:35:37" (1/1) ... [2022-12-13 09:35:37,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:35:37" (1/1) ... [2022-12-13 09:35:37,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:35:37" (1/1) ... [2022-12-13 09:35:37,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:35:37" (1/1) ... [2022-12-13 09:35:37,637 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:35:37" (1/1) ... [2022-12-13 09:35:37,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:35:37" (1/1) ... [2022-12-13 09:35:37,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 09:35:37,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 09:35:37,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 09:35:37,641 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 09:35:37,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:35:37" (1/1) ... [2022-12-13 09:35:37,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 09:35:37,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 09:35:37,684 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 09:35:37,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 09:35:37,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 09:35:37,735 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 09:35:37,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 09:35:37,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 09:35:37,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 09:35:37,736 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 09:35:37,736 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 09:35:37,736 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 09:35:37,736 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 09:35:37,737 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 09:35:37,737 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 09:35:37,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 09:35:37,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 09:35:37,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 09:35:37,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 09:35:37,739 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 09:35:37,920 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 09:35:37,923 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 09:35:38,126 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 09:35:38,132 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 09:35:38,132 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 09:35:38,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:35:38 BoogieIcfgContainer [2022-12-13 09:35:38,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 09:35:38,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 09:35:38,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 09:35:38,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 09:35:38,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:35:37" (1/3) ... [2022-12-13 09:35:38,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@275a2893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:35:38, skipping insertion in model container [2022-12-13 09:35:38,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:35:37" (2/3) ... [2022-12-13 09:35:38,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@275a2893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:35:38, skipping insertion in model container [2022-12-13 09:35:38,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:35:38" (3/3) ... [2022-12-13 09:35:38,143 INFO L112 eAbstractionObserver]: Analyzing ICFG safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-13 09:35:38,156 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 09:35:38,156 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 09:35:38,156 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 09:35:38,204 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 09:35:38,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 84 transitions, 183 flow [2022-12-13 09:35:38,286 INFO L130 PetriNetUnfolder]: 2/81 cut-off events. [2022-12-13 09:35:38,287 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:35:38,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2022-12-13 09:35:38,291 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 84 transitions, 183 flow [2022-12-13 09:35:38,297 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 69 transitions, 147 flow [2022-12-13 09:35:38,299 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:35:38,326 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 69 transitions, 147 flow [2022-12-13 09:35:38,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 69 transitions, 147 flow [2022-12-13 09:35:38,361 INFO L130 PetriNetUnfolder]: 1/69 cut-off events. [2022-12-13 09:35:38,361 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:35:38,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 69 events. 1/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 34 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2022-12-13 09:35:38,364 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 69 transitions, 147 flow [2022-12-13 09:35:38,364 INFO L226 LiptonReduction]: Number of co-enabled transitions 974 [2022-12-13 09:35:40,473 INFO L241 LiptonReduction]: Total number of compositions: 53 [2022-12-13 09:35:40,494 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 09:35:40,501 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@109983b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_CONJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 09:35:40,501 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 09:35:40,508 INFO L130 PetriNetUnfolder]: 0/20 cut-off events. [2022-12-13 09:35:40,509 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:35:40,509 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:35:40,510 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 09:35:40,510 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)] === [2022-12-13 09:35:40,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:35:40,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1773352347, now seen corresponding path program 1 times [2022-12-13 09:35:40,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:35:40,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611391129] [2022-12-13 09:35:40,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:35:40,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:35:40,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:35:41,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:35:41,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:35:41,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611391129] [2022-12-13 09:35:41,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611391129] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:35:41,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:35:41,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 09:35:41,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405312948] [2022-12-13 09:35:41,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:35:41,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 09:35:41,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:35:41,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 09:35:41,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 09:35:41,047 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 26 [2022-12-13 09:35:41,049 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:35:41,049 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:35:41,049 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 26 [2022-12-13 09:35:41,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:35:41,221 INFO L130 PetriNetUnfolder]: 532/924 cut-off events. [2022-12-13 09:35:41,221 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-12-13 09:35:41,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1800 conditions, 924 events. 532/924 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 4631 event pairs, 185 based on Foata normal form. 4/741 useless extension candidates. Maximal degree in co-relation 1789. Up to 792 conditions per place. [2022-12-13 09:35:41,234 INFO L137 encePairwiseOnDemand]: 21/26 looper letters, 25 selfloop transitions, 3 changer transitions 0/35 dead transitions. [2022-12-13 09:35:41,234 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 35 transitions, 141 flow [2022-12-13 09:35:41,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:35:41,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 09:35:41,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 52 transitions. [2022-12-13 09:35:41,244 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2022-12-13 09:35:41,245 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 61 flow. Second operand 3 states and 52 transitions. [2022-12-13 09:35:41,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 35 transitions, 141 flow [2022-12-13 09:35:41,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 35 transitions, 136 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 09:35:41,249 INFO L231 Difference]: Finished difference. Result has 35 places, 27 transitions, 75 flow [2022-12-13 09:35:41,251 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=35, PETRI_TRANSITIONS=27} [2022-12-13 09:35:41,254 INFO L295 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2022-12-13 09:35:41,254 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 09:35:41,254 INFO L89 Accepts]: Start accepts. Operand has 35 places, 27 transitions, 75 flow [2022-12-13 09:35:41,256 INFO L95 Accepts]: Finished accepts. [2022-12-13 09:35:41,257 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:35:41,257 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 27 transitions, 75 flow [2022-12-13 09:35:41,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 27 transitions, 75 flow [2022-12-13 09:35:41,262 INFO L130 PetriNetUnfolder]: 3/39 cut-off events. [2022-12-13 09:35:41,262 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:35:41,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 39 events. 3/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 90 event pairs, 1 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 52. Up to 10 conditions per place. [2022-12-13 09:35:41,264 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 27 transitions, 75 flow [2022-12-13 09:35:41,265 INFO L226 LiptonReduction]: Number of co-enabled transitions 346 [2022-12-13 09:35:41,328 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 09:35:41,329 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 75 [2022-12-13 09:35:41,329 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 27 transitions, 75 flow [2022-12-13 09:35:41,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:35:41,330 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:35:41,330 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 09:35:41,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 09:35:41,330 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)] === [2022-12-13 09:35:41,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:35:41,331 INFO L85 PathProgramCache]: Analyzing trace with hash 860651159, now seen corresponding path program 1 times [2022-12-13 09:35:41,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:35:41,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984238191] [2022-12-13 09:35:41,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:35:41,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:35:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:35:41,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:35:41,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:35:41,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984238191] [2022-12-13 09:35:41,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984238191] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:35:41,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:35:41,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 09:35:41,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309090949] [2022-12-13 09:35:41,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:35:41,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 09:35:41,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:35:41,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 09:35:41,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 09:35:41,466 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 25 [2022-12-13 09:35:41,466 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 27 transitions, 75 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:35:41,467 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:35:41,467 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 25 [2022-12-13 09:35:41,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:35:41,582 INFO L130 PetriNetUnfolder]: 492/872 cut-off events. [2022-12-13 09:35:41,582 INFO L131 PetriNetUnfolder]: For 93/93 co-relation queries the response was YES. [2022-12-13 09:35:41,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1872 conditions, 872 events. 492/872 cut-off events. For 93/93 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 4290 event pairs, 153 based on Foata normal form. 16/709 useless extension candidates. Maximal degree in co-relation 1861. Up to 560 conditions per place. [2022-12-13 09:35:41,591 INFO L137 encePairwiseOnDemand]: 22/25 looper letters, 24 selfloop transitions, 3 changer transitions 0/34 dead transitions. [2022-12-13 09:35:41,591 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 34 transitions, 143 flow [2022-12-13 09:35:41,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:35:41,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 09:35:41,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 48 transitions. [2022-12-13 09:35:41,592 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.64 [2022-12-13 09:35:41,592 INFO L175 Difference]: Start difference. First operand has 35 places, 27 transitions, 75 flow. Second operand 3 states and 48 transitions. [2022-12-13 09:35:41,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 34 transitions, 143 flow [2022-12-13 09:35:41,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 34 transitions, 140 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 09:35:41,594 INFO L231 Difference]: Finished difference. Result has 37 places, 27 transitions, 83 flow [2022-12-13 09:35:41,594 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=37, PETRI_TRANSITIONS=27} [2022-12-13 09:35:41,595 INFO L295 CegarLoopForPetriNet]: 35 programPoint places, 2 predicate places. [2022-12-13 09:35:41,595 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 09:35:41,595 INFO L89 Accepts]: Start accepts. Operand has 37 places, 27 transitions, 83 flow [2022-12-13 09:35:41,595 INFO L95 Accepts]: Finished accepts. [2022-12-13 09:35:41,596 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:35:41,596 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 27 transitions, 83 flow [2022-12-13 09:35:41,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 27 transitions, 83 flow [2022-12-13 09:35:41,600 INFO L130 PetriNetUnfolder]: 2/33 cut-off events. [2022-12-13 09:35:41,600 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 09:35:41,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 33 events. 2/33 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 81 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 48. Up to 8 conditions per place. [2022-12-13 09:35:41,601 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 27 transitions, 83 flow [2022-12-13 09:35:41,601 INFO L226 LiptonReduction]: Number of co-enabled transitions 344 [2022-12-13 09:35:41,604 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 09:35:41,605 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 10 [2022-12-13 09:35:41,605 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 27 transitions, 83 flow [2022-12-13 09:35:41,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:35:41,605 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:35:41,605 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 09:35:41,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 09:35:41,606 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)] === [2022-12-13 09:35:41,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:35:41,606 INFO L85 PathProgramCache]: Analyzing trace with hash 860651872, now seen corresponding path program 1 times [2022-12-13 09:35:41,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:35:41,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995151092] [2022-12-13 09:35:41,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:35:41,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:35:41,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:35:41,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:35:41,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:35:41,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995151092] [2022-12-13 09:35:41,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995151092] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:35:41,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:35:41,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 09:35:41,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585324742] [2022-12-13 09:35:41,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:35:41,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 09:35:41,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:35:41,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 09:35:41,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 09:35:41,708 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 25 [2022-12-13 09:35:41,708 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 27 transitions, 83 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:35:41,708 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:35:41,708 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 25 [2022-12-13 09:35:41,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:35:41,869 INFO L130 PetriNetUnfolder]: 677/1190 cut-off events. [2022-12-13 09:35:41,869 INFO L131 PetriNetUnfolder]: For 440/440 co-relation queries the response was YES. [2022-12-13 09:35:41,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2611 conditions, 1190 events. 677/1190 cut-off events. For 440/440 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 6802 event pairs, 139 based on Foata normal form. 60/975 useless extension candidates. Maximal degree in co-relation 2598. Up to 613 conditions per place. [2022-12-13 09:35:41,876 INFO L137 encePairwiseOnDemand]: 19/25 looper letters, 40 selfloop transitions, 11 changer transitions 4/62 dead transitions. [2022-12-13 09:35:41,876 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 62 transitions, 291 flow [2022-12-13 09:35:41,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 09:35:41,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 09:35:41,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 90 transitions. [2022-12-13 09:35:41,880 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.72 [2022-12-13 09:35:41,880 INFO L175 Difference]: Start difference. First operand has 37 places, 27 transitions, 83 flow. Second operand 5 states and 90 transitions. [2022-12-13 09:35:41,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 62 transitions, 291 flow [2022-12-13 09:35:41,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 62 transitions, 281 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 09:35:41,884 INFO L231 Difference]: Finished difference. Result has 42 places, 35 transitions, 157 flow [2022-12-13 09:35:41,884 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=157, PETRI_PLACES=42, PETRI_TRANSITIONS=35} [2022-12-13 09:35:41,884 INFO L295 CegarLoopForPetriNet]: 35 programPoint places, 7 predicate places. [2022-12-13 09:35:41,884 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 09:35:41,885 INFO L89 Accepts]: Start accepts. Operand has 42 places, 35 transitions, 157 flow [2022-12-13 09:35:41,885 INFO L95 Accepts]: Finished accepts. [2022-12-13 09:35:41,885 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:35:41,886 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 35 transitions, 157 flow [2022-12-13 09:35:41,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 35 transitions, 157 flow [2022-12-13 09:35:41,893 INFO L130 PetriNetUnfolder]: 9/86 cut-off events. [2022-12-13 09:35:41,893 INFO L131 PetriNetUnfolder]: For 44/60 co-relation queries the response was YES. [2022-12-13 09:35:41,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 86 events. 9/86 cut-off events. For 44/60 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 438 event pairs, 1 based on Foata normal form. 1/57 useless extension candidates. Maximal degree in co-relation 168. Up to 17 conditions per place. [2022-12-13 09:35:41,894 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 35 transitions, 157 flow [2022-12-13 09:35:41,895 INFO L226 LiptonReduction]: Number of co-enabled transitions 430 [2022-12-13 09:35:41,909 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 09:35:41,910 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 26 [2022-12-13 09:35:41,910 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 35 transitions, 157 flow [2022-12-13 09:35:41,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:35:41,910 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:35:41,910 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 09:35:41,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 09:35:41,911 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)] === [2022-12-13 09:35:41,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:35:41,911 INFO L85 PathProgramCache]: Analyzing trace with hash 910425179, now seen corresponding path program 1 times [2022-12-13 09:35:41,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:35:41,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305440820] [2022-12-13 09:35:41,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:35:41,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:35:41,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:35:42,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:35:42,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:35:42,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305440820] [2022-12-13 09:35:42,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305440820] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:35:42,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:35:42,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 09:35:42,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073536469] [2022-12-13 09:35:42,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:35:42,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 09:35:42,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:35:42,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 09:35:42,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 09:35:42,004 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 25 [2022-12-13 09:35:42,004 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 35 transitions, 157 flow. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:35:42,004 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:35:42,004 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 25 [2022-12-13 09:35:42,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:35:42,176 INFO L130 PetriNetUnfolder]: 656/1174 cut-off events. [2022-12-13 09:35:42,177 INFO L131 PetriNetUnfolder]: For 933/933 co-relation queries the response was YES. [2022-12-13 09:35:42,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3081 conditions, 1174 events. 656/1174 cut-off events. For 933/933 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 6772 event pairs, 387 based on Foata normal form. 9/917 useless extension candidates. Maximal degree in co-relation 3065. Up to 915 conditions per place. [2022-12-13 09:35:42,185 INFO L137 encePairwiseOnDemand]: 22/25 looper letters, 32 selfloop transitions, 6 changer transitions 0/45 dead transitions. [2022-12-13 09:35:42,185 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 45 transitions, 261 flow [2022-12-13 09:35:42,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:35:42,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 09:35:42,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 51 transitions. [2022-12-13 09:35:42,186 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.68 [2022-12-13 09:35:42,186 INFO L175 Difference]: Start difference. First operand has 42 places, 35 transitions, 157 flow. Second operand 3 states and 51 transitions. [2022-12-13 09:35:42,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 45 transitions, 261 flow [2022-12-13 09:35:42,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 45 transitions, 261 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 09:35:42,189 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 177 flow [2022-12-13 09:35:42,189 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=177, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2022-12-13 09:35:42,190 INFO L295 CegarLoopForPetriNet]: 35 programPoint places, 10 predicate places. [2022-12-13 09:35:42,190 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 09:35:42,190 INFO L89 Accepts]: Start accepts. Operand has 45 places, 35 transitions, 177 flow [2022-12-13 09:35:42,191 INFO L95 Accepts]: Finished accepts. [2022-12-13 09:35:42,191 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:35:42,191 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 35 transitions, 177 flow [2022-12-13 09:35:42,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 35 transitions, 177 flow [2022-12-13 09:35:42,198 INFO L130 PetriNetUnfolder]: 9/85 cut-off events. [2022-12-13 09:35:42,198 INFO L131 PetriNetUnfolder]: For 69/74 co-relation queries the response was YES. [2022-12-13 09:35:42,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 85 events. 9/85 cut-off events. For 69/74 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 424 event pairs, 1 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 180. Up to 17 conditions per place. [2022-12-13 09:35:42,200 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 35 transitions, 177 flow [2022-12-13 09:35:42,200 INFO L226 LiptonReduction]: Number of co-enabled transitions 428 [2022-12-13 09:35:42,204 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 09:35:42,205 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 15 [2022-12-13 09:35:42,206 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 177 flow [2022-12-13 09:35:42,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:35:42,206 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:35:42,206 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 09:35:42,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 09:35:42,206 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)] === [2022-12-13 09:35:42,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:35:42,207 INFO L85 PathProgramCache]: Analyzing trace with hash 910403324, now seen corresponding path program 1 times [2022-12-13 09:35:42,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:35:42,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773316482] [2022-12-13 09:35:42,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:35:42,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:35:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:35:42,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:35:42,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:35:42,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773316482] [2022-12-13 09:35:42,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773316482] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:35:42,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:35:42,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 09:35:42,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547553572] [2022-12-13 09:35:42,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:35:42,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 09:35:42,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:35:42,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 09:35:42,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 09:35:42,297 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 25 [2022-12-13 09:35:42,297 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 177 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:35:42,298 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:35:42,298 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 25 [2022-12-13 09:35:42,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:35:42,435 INFO L130 PetriNetUnfolder]: 741/1351 cut-off events. [2022-12-13 09:35:42,435 INFO L131 PetriNetUnfolder]: For 1629/1629 co-relation queries the response was YES. [2022-12-13 09:35:42,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3520 conditions, 1351 events. 741/1351 cut-off events. For 1629/1629 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 8336 event pairs, 123 based on Foata normal form. 48/1074 useless extension candidates. Maximal degree in co-relation 3501. Up to 630 conditions per place. [2022-12-13 09:35:42,443 INFO L137 encePairwiseOnDemand]: 21/25 looper letters, 29 selfloop transitions, 5 changer transitions 10/51 dead transitions. [2022-12-13 09:35:42,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 51 transitions, 307 flow [2022-12-13 09:35:42,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:35:42,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 09:35:42,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 67 transitions. [2022-12-13 09:35:42,444 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.67 [2022-12-13 09:35:42,445 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 177 flow. Second operand 4 states and 67 transitions. [2022-12-13 09:35:42,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 51 transitions, 307 flow [2022-12-13 09:35:42,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 51 transitions, 293 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 09:35:42,448 INFO L231 Difference]: Finished difference. Result has 48 places, 29 transitions, 142 flow [2022-12-13 09:35:42,449 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=142, PETRI_PLACES=48, PETRI_TRANSITIONS=29} [2022-12-13 09:35:42,449 INFO L295 CegarLoopForPetriNet]: 35 programPoint places, 13 predicate places. [2022-12-13 09:35:42,449 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 09:35:42,449 INFO L89 Accepts]: Start accepts. Operand has 48 places, 29 transitions, 142 flow [2022-12-13 09:35:42,450 INFO L95 Accepts]: Finished accepts. [2022-12-13 09:35:42,450 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:35:42,450 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 29 transitions, 142 flow [2022-12-13 09:35:42,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 29 transitions, 142 flow [2022-12-13 09:35:42,455 INFO L130 PetriNetUnfolder]: 3/41 cut-off events. [2022-12-13 09:35:42,455 INFO L131 PetriNetUnfolder]: For 42/48 co-relation queries the response was YES. [2022-12-13 09:35:42,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 41 events. 3/41 cut-off events. For 42/48 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 112 event pairs, 1 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 91. Up to 8 conditions per place. [2022-12-13 09:35:42,456 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 29 transitions, 142 flow [2022-12-13 09:35:42,456 INFO L226 LiptonReduction]: Number of co-enabled transitions 322 [2022-12-13 09:35:42,460 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 09:35:42,461 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 12 [2022-12-13 09:35:42,461 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 29 transitions, 142 flow [2022-12-13 09:35:42,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:35:42,462 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:35:42,462 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 09:35:42,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 09:35:42,462 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)] === [2022-12-13 09:35:42,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:35:42,462 INFO L85 PathProgramCache]: Analyzing trace with hash -45394435, now seen corresponding path program 1 times [2022-12-13 09:35:42,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:35:42,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968377583] [2022-12-13 09:35:42,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:35:42,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:35:42,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:35:42,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:35:42,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:35:42,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968377583] [2022-12-13 09:35:42,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968377583] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:35:42,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:35:42,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 09:35:42,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615997335] [2022-12-13 09:35:42,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:35:42,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 09:35:42,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:35:42,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 09:35:42,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 09:35:42,581 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 25 [2022-12-13 09:35:42,581 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 29 transitions, 142 flow. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:35:42,582 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:35:42,582 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 25 [2022-12-13 09:35:42,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:35:42,692 INFO L130 PetriNetUnfolder]: 538/931 cut-off events. [2022-12-13 09:35:42,692 INFO L131 PetriNetUnfolder]: For 2453/2453 co-relation queries the response was YES. [2022-12-13 09:35:42,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2625 conditions, 931 events. 538/931 cut-off events. For 2453/2453 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 4240 event pairs, 181 based on Foata normal form. 48/748 useless extension candidates. Maximal degree in co-relation 2604. Up to 316 conditions per place. [2022-12-13 09:35:42,698 INFO L137 encePairwiseOnDemand]: 21/25 looper letters, 24 selfloop transitions, 3 changer transitions 12/44 dead transitions. [2022-12-13 09:35:42,698 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 44 transitions, 261 flow [2022-12-13 09:35:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:35:42,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 09:35:42,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 60 transitions. [2022-12-13 09:35:42,699 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6 [2022-12-13 09:35:42,699 INFO L175 Difference]: Start difference. First operand has 48 places, 29 transitions, 142 flow. Second operand 4 states and 60 transitions. [2022-12-13 09:35:42,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 44 transitions, 261 flow [2022-12-13 09:35:42,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 44 transitions, 236 flow, removed 3 selfloop flow, removed 6 redundant places. [2022-12-13 09:35:42,702 INFO L231 Difference]: Finished difference. Result has 47 places, 24 transitions, 104 flow [2022-12-13 09:35:42,702 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=104, PETRI_PLACES=47, PETRI_TRANSITIONS=24} [2022-12-13 09:35:42,703 INFO L295 CegarLoopForPetriNet]: 35 programPoint places, 12 predicate places. [2022-12-13 09:35:42,703 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 09:35:42,703 INFO L89 Accepts]: Start accepts. Operand has 47 places, 24 transitions, 104 flow [2022-12-13 09:35:42,704 INFO L95 Accepts]: Finished accepts. [2022-12-13 09:35:42,704 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:35:42,704 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 24 transitions, 104 flow [2022-12-13 09:35:42,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 24 transitions, 104 flow [2022-12-13 09:35:42,707 INFO L130 PetriNetUnfolder]: 1/26 cut-off events. [2022-12-13 09:35:42,707 INFO L131 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2022-12-13 09:35:42,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 26 events. 1/26 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 45 event pairs, 1 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 60. Up to 6 conditions per place. [2022-12-13 09:35:42,708 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 24 transitions, 104 flow [2022-12-13 09:35:42,708 INFO L226 LiptonReduction]: Number of co-enabled transitions 192 [2022-12-13 09:35:42,751 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 09:35:42,752 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 49 [2022-12-13 09:35:42,752 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 23 transitions, 102 flow [2022-12-13 09:35:42,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:35:42,752 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:35:42,752 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 09:35:42,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 09:35:42,752 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)] === [2022-12-13 09:35:42,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:35:42,753 INFO L85 PathProgramCache]: Analyzing trace with hash -140801162, now seen corresponding path program 1 times [2022-12-13 09:35:42,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:35:42,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239358770] [2022-12-13 09:35:42,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:35:42,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:35:42,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:35:42,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:35:42,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:35:42,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239358770] [2022-12-13 09:35:42,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239358770] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:35:42,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:35:42,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 09:35:42,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3300465] [2022-12-13 09:35:42,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:35:42,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 09:35:42,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:35:42,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 09:35:42,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 09:35:42,824 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 23 [2022-12-13 09:35:42,824 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 23 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:35:42,824 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:35:42,824 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 23 [2022-12-13 09:35:42,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:35:42,899 INFO L130 PetriNetUnfolder]: 437/698 cut-off events. [2022-12-13 09:35:42,899 INFO L131 PetriNetUnfolder]: For 2363/2393 co-relation queries the response was YES. [2022-12-13 09:35:42,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2188 conditions, 698 events. 437/698 cut-off events. For 2363/2393 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 3124 event pairs, 215 based on Foata normal form. 4/372 useless extension candidates. Maximal degree in co-relation 2169. Up to 667 conditions per place. [2022-12-13 09:35:42,904 INFO L137 encePairwiseOnDemand]: 12/23 looper letters, 23 selfloop transitions, 10 changer transitions 0/36 dead transitions. [2022-12-13 09:35:42,904 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 36 transitions, 214 flow [2022-12-13 09:35:42,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:35:42,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 09:35:42,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2022-12-13 09:35:42,906 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6231884057971014 [2022-12-13 09:35:42,906 INFO L175 Difference]: Start difference. First operand has 44 places, 23 transitions, 102 flow. Second operand 3 states and 43 transitions. [2022-12-13 09:35:42,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 36 transitions, 214 flow [2022-12-13 09:35:42,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 36 transitions, 171 flow, removed 8 selfloop flow, removed 9 redundant places. [2022-12-13 09:35:42,909 INFO L231 Difference]: Finished difference. Result has 38 places, 32 transitions, 140 flow [2022-12-13 09:35:42,909 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=38, PETRI_TRANSITIONS=32} [2022-12-13 09:35:42,910 INFO L295 CegarLoopForPetriNet]: 35 programPoint places, 3 predicate places. [2022-12-13 09:35:42,910 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 09:35:42,910 INFO L89 Accepts]: Start accepts. Operand has 38 places, 32 transitions, 140 flow [2022-12-13 09:35:42,910 INFO L95 Accepts]: Finished accepts. [2022-12-13 09:35:42,910 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:35:42,911 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 32 transitions, 140 flow [2022-12-13 09:35:42,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 32 transitions, 140 flow [2022-12-13 09:35:42,938 INFO L130 PetriNetUnfolder]: 267/483 cut-off events. [2022-12-13 09:35:42,938 INFO L131 PetriNetUnfolder]: For 158/176 co-relation queries the response was YES. [2022-12-13 09:35:42,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1100 conditions, 483 events. 267/483 cut-off events. For 158/176 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 2679 event pairs, 132 based on Foata normal form. 0/215 useless extension candidates. Maximal degree in co-relation 1089. Up to 406 conditions per place. [2022-12-13 09:35:42,941 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 32 transitions, 140 flow [2022-12-13 09:35:42,942 INFO L226 LiptonReduction]: Number of co-enabled transitions 144 [2022-12-13 09:35:43,092 INFO L241 LiptonReduction]: Total number of compositions: 2 [2022-12-13 09:35:43,093 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 183 [2022-12-13 09:35:43,093 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 32 transitions, 161 flow [2022-12-13 09:35:43,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:35:43,093 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:35:43,093 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 09:35:43,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 09:35:43,093 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)] === [2022-12-13 09:35:43,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:35:43,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1499401, now seen corresponding path program 1 times [2022-12-13 09:35:43,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:35:43,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389420028] [2022-12-13 09:35:43,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:35:43,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:35:43,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:35:43,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:35:43,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:35:43,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389420028] [2022-12-13 09:35:43,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389420028] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:35:43,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:35:43,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 09:35:43,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418250930] [2022-12-13 09:35:43,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:35:43,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 09:35:43,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:35:43,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 09:35:43,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 09:35:43,186 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 29 [2022-12-13 09:35:43,186 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 161 flow. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:35:43,187 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:35:43,187 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 29 [2022-12-13 09:35:43,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:35:43,267 INFO L130 PetriNetUnfolder]: 290/524 cut-off events. [2022-12-13 09:35:43,268 INFO L131 PetriNetUnfolder]: For 386/440 co-relation queries the response was YES. [2022-12-13 09:35:43,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1749 conditions, 524 events. 290/524 cut-off events. For 386/440 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 2555 event pairs, 65 based on Foata normal form. 18/305 useless extension candidates. Maximal degree in co-relation 1735. Up to 460 conditions per place. [2022-12-13 09:35:43,271 INFO L137 encePairwiseOnDemand]: 12/29 looper letters, 24 selfloop transitions, 19 changer transitions 0/46 dead transitions. [2022-12-13 09:35:43,271 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 46 transitions, 302 flow [2022-12-13 09:35:43,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:35:43,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 09:35:43,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 56 transitions. [2022-12-13 09:35:43,272 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4827586206896552 [2022-12-13 09:35:43,272 INFO L175 Difference]: Start difference. First operand has 38 places, 32 transitions, 161 flow. Second operand 4 states and 56 transitions. [2022-12-13 09:35:43,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 46 transitions, 302 flow [2022-12-13 09:35:43,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 46 transitions, 292 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 09:35:43,274 INFO L231 Difference]: Finished difference. Result has 41 places, 41 transitions, 263 flow [2022-12-13 09:35:43,274 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=263, PETRI_PLACES=41, PETRI_TRANSITIONS=41} [2022-12-13 09:35:43,275 INFO L295 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2022-12-13 09:35:43,275 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 09:35:43,275 INFO L89 Accepts]: Start accepts. Operand has 41 places, 41 transitions, 263 flow [2022-12-13 09:35:43,276 INFO L95 Accepts]: Finished accepts. [2022-12-13 09:35:43,276 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:35:43,276 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 41 transitions, 263 flow [2022-12-13 09:35:43,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 41 transitions, 263 flow [2022-12-13 09:35:43,300 INFO L130 PetriNetUnfolder]: 198/399 cut-off events. [2022-12-13 09:35:43,301 INFO L131 PetriNetUnfolder]: For 230/368 co-relation queries the response was YES. [2022-12-13 09:35:43,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1321 conditions, 399 events. 198/399 cut-off events. For 230/368 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 2232 event pairs, 63 based on Foata normal form. 2/207 useless extension candidates. Maximal degree in co-relation 1308. Up to 307 conditions per place. [2022-12-13 09:35:43,303 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 41 transitions, 263 flow [2022-12-13 09:35:43,304 INFO L226 LiptonReduction]: Number of co-enabled transitions 122 [2022-12-13 09:35:43,556 INFO L241 LiptonReduction]: Total number of compositions: 3 [2022-12-13 09:35:43,556 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 281 [2022-12-13 09:35:43,557 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 41 transitions, 290 flow [2022-12-13 09:35:43,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:35:43,557 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:35:43,557 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 09:35:43,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 09:35:43,557 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)] === [2022-12-13 09:35:43,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:35:43,558 INFO L85 PathProgramCache]: Analyzing trace with hash -767845491, now seen corresponding path program 1 times [2022-12-13 09:35:43,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:35:43,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148753286] [2022-12-13 09:35:43,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:35:43,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:35:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:35:43,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:35:43,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:35:43,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148753286] [2022-12-13 09:35:43,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148753286] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:35:43,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:35:43,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 09:35:43,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134954442] [2022-12-13 09:35:43,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:35:43,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 09:35:43,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:35:43,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 09:35:43,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 09:35:43,638 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 35 [2022-12-13 09:35:43,639 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 41 transitions, 290 flow. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:35:43,639 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:35:43,639 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 35 [2022-12-13 09:35:43,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:35:43,709 INFO L130 PetriNetUnfolder]: 107/269 cut-off events. [2022-12-13 09:35:43,709 INFO L131 PetriNetUnfolder]: For 225/279 co-relation queries the response was YES. [2022-12-13 09:35:43,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1208 conditions, 269 events. 107/269 cut-off events. For 225/279 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1396 event pairs, 2 based on Foata normal form. 39/190 useless extension candidates. Maximal degree in co-relation 1192. Up to 196 conditions per place. [2022-12-13 09:35:43,711 INFO L137 encePairwiseOnDemand]: 12/35 looper letters, 14 selfloop transitions, 28 changer transitions 1/46 dead transitions. [2022-12-13 09:35:43,711 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 46 transitions, 395 flow [2022-12-13 09:35:43,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 09:35:43,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 09:35:43,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 59 transitions. [2022-12-13 09:35:43,712 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.33714285714285713 [2022-12-13 09:35:43,712 INFO L175 Difference]: Start difference. First operand has 41 places, 41 transitions, 290 flow. Second operand 5 states and 59 transitions. [2022-12-13 09:35:43,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 46 transitions, 395 flow [2022-12-13 09:35:43,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 46 transitions, 312 flow, removed 26 selfloop flow, removed 4 redundant places. [2022-12-13 09:35:43,715 INFO L231 Difference]: Finished difference. Result has 42 places, 41 transitions, 286 flow [2022-12-13 09:35:43,715 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=286, PETRI_PLACES=42, PETRI_TRANSITIONS=41} [2022-12-13 09:35:43,716 INFO L295 CegarLoopForPetriNet]: 35 programPoint places, 7 predicate places. [2022-12-13 09:35:43,716 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 09:35:43,716 INFO L89 Accepts]: Start accepts. Operand has 42 places, 41 transitions, 286 flow [2022-12-13 09:35:43,717 INFO L95 Accepts]: Finished accepts. [2022-12-13 09:35:43,717 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:35:43,717 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 41 transitions, 286 flow [2022-12-13 09:35:43,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 41 transitions, 286 flow [2022-12-13 09:35:43,731 INFO L130 PetriNetUnfolder]: 81/225 cut-off events. [2022-12-13 09:35:43,732 INFO L131 PetriNetUnfolder]: For 108/132 co-relation queries the response was YES. [2022-12-13 09:35:43,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 790 conditions, 225 events. 81/225 cut-off events. For 108/132 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1204 event pairs, 0 based on Foata normal form. 1/121 useless extension candidates. Maximal degree in co-relation 778. Up to 163 conditions per place. [2022-12-13 09:35:43,733 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 41 transitions, 286 flow [2022-12-13 09:35:43,733 INFO L226 LiptonReduction]: Number of co-enabled transitions 86 [2022-12-13 09:35:44,057 INFO L241 LiptonReduction]: Total number of compositions: 3 [2022-12-13 09:35:44,057 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 341 [2022-12-13 09:35:44,057 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 38 transitions, 285 flow [2022-12-13 09:35:44,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:35:44,058 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:35:44,058 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 09:35:44,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 09:35:44,058 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 09:35:44,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:35:44,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1825823150, now seen corresponding path program 1 times [2022-12-13 09:35:44,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:35:44,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940184218] [2022-12-13 09:35:44,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:35:44,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:35:44,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:35:44,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:35:44,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:35:44,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940184218] [2022-12-13 09:35:44,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940184218] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:35:44,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:35:44,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 09:35:44,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630051639] [2022-12-13 09:35:44,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:35:44,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 09:35:44,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:35:44,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 09:35:44,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 09:35:44,141 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 32 [2022-12-13 09:35:44,141 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 38 transitions, 285 flow. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:35:44,142 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:35:44,142 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 32 [2022-12-13 09:35:44,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:35:44,217 INFO L130 PetriNetUnfolder]: 89/173 cut-off events. [2022-12-13 09:35:44,217 INFO L131 PetriNetUnfolder]: For 175/175 co-relation queries the response was YES. [2022-12-13 09:35:44,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 833 conditions, 173 events. 89/173 cut-off events. For 175/175 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 660 event pairs, 0 based on Foata normal form. 27/130 useless extension candidates. Maximal degree in co-relation 818. Up to 136 conditions per place. [2022-12-13 09:35:44,218 INFO L137 encePairwiseOnDemand]: 13/32 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions. [2022-12-13 09:35:44,218 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 43 transitions, 385 flow [2022-12-13 09:35:44,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 09:35:44,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 09:35:44,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 54 transitions. [2022-12-13 09:35:44,219 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3375 [2022-12-13 09:35:44,220 INFO L175 Difference]: Start difference. First operand has 39 places, 38 transitions, 285 flow. Second operand 5 states and 54 transitions. [2022-12-13 09:35:44,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 43 transitions, 385 flow [2022-12-13 09:35:44,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 43 transitions, 265 flow, removed 18 selfloop flow, removed 6 redundant places. [2022-12-13 09:35:44,222 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2022-12-13 09:35:44,223 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2022-12-13 09:35:44,224 INFO L295 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2022-12-13 09:35:44,224 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:35:44,224 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 0 transitions, 0 flow [2022-12-13 09:35:44,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-13 09:35:44,224 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 09:35:44,224 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:35:44,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2022-12-13 09:35:44,225 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 09:35:44,225 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 09:35:44,225 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 09:35:44,227 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 3 [2022-12-13 09:35:44,227 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-13 09:35:44,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:35:44,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-13 09:35:44,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-13 09:35:44,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-13 09:35:44,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-13 09:35:44,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 09:35:44,230 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 09:35:44,233 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 09:35:44,233 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 09:35:44,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:35:44 BasicIcfg [2022-12-13 09:35:44,236 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 09:35:44,237 INFO L158 Benchmark]: Toolchain (without parser) took 7188.91ms. Allocated memory was 176.2MB in the beginning and 304.1MB in the end (delta: 127.9MB). Free memory was 150.1MB in the beginning and 271.2MB in the end (delta: -121.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-12-13 09:35:44,237 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 176.2MB. Free memory is still 152.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 09:35:44,237 INFO L158 Benchmark]: CACSL2BoogieTranslator took 496.31ms. Allocated memory is still 176.2MB. Free memory was 150.1MB in the beginning and 126.9MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-13 09:35:44,237 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.51ms. Allocated memory is still 176.2MB. Free memory was 126.9MB in the beginning and 125.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 09:35:44,238 INFO L158 Benchmark]: Boogie Preprocessor took 35.14ms. Allocated memory is still 176.2MB. Free memory was 125.0MB in the beginning and 123.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-13 09:35:44,238 INFO L158 Benchmark]: RCFGBuilder took 493.38ms. Allocated memory is still 176.2MB. Free memory was 123.4MB in the beginning and 109.8MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-13 09:35:44,238 INFO L158 Benchmark]: TraceAbstraction took 6100.31ms. Allocated memory was 176.2MB in the beginning and 304.1MB in the end (delta: 127.9MB). Free memory was 108.2MB in the beginning and 271.2MB in the end (delta: -163.0MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 09:35:44,239 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 176.2MB. Free memory is still 152.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 496.31ms. Allocated memory is still 176.2MB. Free memory was 150.1MB in the beginning and 126.9MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.51ms. Allocated memory is still 176.2MB. Free memory was 126.9MB in the beginning and 125.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.14ms. Allocated memory is still 176.2MB. Free memory was 125.0MB in the beginning and 123.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 493.38ms. Allocated memory is still 176.2MB. Free memory was 123.4MB in the beginning and 109.8MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 6100.31ms. Allocated memory was 176.2MB in the beginning and 304.1MB in the end (delta: 127.9MB). Free memory was 108.2MB in the beginning and 271.2MB in the end (delta: -163.0MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 78 PlacesBefore, 35 PlacesAfterwards, 69 TransitionsBefore, 26 TransitionsAfterwards, 974 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 32 ConcurrentYvCompositions, 0 ChoiceCompositions, 53 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1170, independent: 1112, independent conditional: 1112, independent unconditional: 0, dependent: 58, dependent conditional: 58, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 885, independent: 849, independent conditional: 0, independent unconditional: 849, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 885, independent: 849, independent conditional: 0, independent unconditional: 849, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 885, independent: 811, independent conditional: 0, independent unconditional: 811, dependent: 74, dependent conditional: 0, dependent unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 74, independent: 38, independent conditional: 0, independent unconditional: 38, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 165, independent: 86, independent conditional: 0, independent unconditional: 86, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1170, independent: 263, independent conditional: 263, independent unconditional: 0, dependent: 22, dependent conditional: 22, dependent unconditional: 0, unknown: 885, unknown conditional: 885, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 885, Positive cache size: 849, Positive conditional cache size: 849, Positive unconditional cache size: 0, Negative cache size: 36, Negative conditional cache size: 36, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 35 PlacesBefore, 35 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 346 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 139, independent: 118, independent conditional: 118, independent unconditional: 0, dependent: 21, dependent conditional: 21, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 113, independent: 101, independent conditional: 5, independent unconditional: 96, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 113, independent: 101, independent conditional: 5, independent unconditional: 96, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 113, independent: 65, independent conditional: 0, independent unconditional: 65, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 48, independent: 36, independent conditional: 0, independent unconditional: 36, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 58, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 139, independent: 17, independent conditional: 17, independent unconditional: 0, dependent: 9, dependent conditional: 9, dependent unconditional: 0, unknown: 113, unknown conditional: 113, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 113, Positive cache size: 101, Positive conditional cache size: 101, Positive unconditional cache size: 0, Negative cache size: 12, Negative conditional cache size: 12, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 37 PlacesBefore, 37 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 344 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 173, independent: 151, independent conditional: 151, independent unconditional: 0, dependent: 22, dependent conditional: 22, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 24, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 24, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 173, independent: 128, independent conditional: 128, independent unconditional: 0, dependent: 21, dependent conditional: 21, dependent unconditional: 0, unknown: 24, unknown conditional: 24, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 137, Positive cache size: 124, Positive conditional cache size: 124, Positive unconditional cache size: 0, Negative cache size: 13, Negative conditional cache size: 13, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 42 PlacesBefore, 42 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 430 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 135, independent: 126, independent conditional: 126, independent unconditional: 0, dependent: 9, dependent conditional: 9, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 39, independent: 37, independent conditional: 26, independent unconditional: 11, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 39, independent: 37, independent conditional: 26, independent unconditional: 11, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 39, independent: 37, independent conditional: 0, independent unconditional: 37, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 6, dependent conditional: 6, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 135, independent: 89, independent conditional: 89, independent unconditional: 0, dependent: 7, dependent conditional: 7, dependent unconditional: 0, unknown: 39, unknown conditional: 39, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 176, Positive cache size: 161, Positive conditional cache size: 161, Positive unconditional cache size: 0, Negative cache size: 15, Negative conditional cache size: 15, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 45 PlacesBefore, 45 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 428 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 123, independent: 114, independent conditional: 114, independent unconditional: 0, dependent: 9, dependent conditional: 9, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, independent: 6, independent conditional: 1, independent unconditional: 5, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, independent: 6, independent conditional: 1, independent unconditional: 5, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 123, independent: 108, independent conditional: 108, independent unconditional: 0, dependent: 7, dependent conditional: 7, dependent unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 184, Positive cache size: 167, Positive conditional cache size: 167, Positive unconditional cache size: 0, Negative cache size: 17, Negative conditional cache size: 17, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 48 PlacesBefore, 48 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 322 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 51, independent: 41, independent conditional: 41, independent unconditional: 0, dependent: 10, dependent conditional: 10, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 3, dependent conditional: 1, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 3, dependent conditional: 1, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 1, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 1, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 51, independent: 37, independent conditional: 37, independent unconditional: 0, dependent: 7, dependent conditional: 7, dependent unconditional: 0, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 191, Positive cache size: 171, Positive conditional cache size: 171, Positive unconditional cache size: 0, Negative cache size: 20, Negative conditional cache size: 20, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 45 PlacesBefore, 44 PlacesAfterwards, 24 TransitionsBefore, 23 TransitionsAfterwards, 192 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 175, independent: 155, independent conditional: 155, independent unconditional: 0, dependent: 20, dependent conditional: 20, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 26, independent: 26, independent conditional: 8, independent unconditional: 18, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 26, independent: 26, independent conditional: 8, independent unconditional: 18, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 26, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 175, independent: 129, independent conditional: 129, independent unconditional: 0, dependent: 20, dependent conditional: 20, dependent unconditional: 0, unknown: 26, unknown conditional: 26, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 217, Positive cache size: 197, Positive conditional cache size: 197, Positive unconditional cache size: 0, Negative cache size: 20, Negative conditional cache size: 20, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 38 PlacesBefore, 38 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 60, independent: 60, independent conditional: 60, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 31, independent: 31, independent conditional: 24, independent unconditional: 7, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 31, independent: 31, independent conditional: 24, independent unconditional: 7, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 31, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 60, independent: 29, independent conditional: 29, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 31, unknown conditional: 31, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 248, Positive cache size: 228, Positive conditional cache size: 228, Positive unconditional cache size: 0, Negative cache size: 20, Negative conditional cache size: 20, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 41 PlacesBefore, 41 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 122 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 51, independent: 51, independent conditional: 51, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23, independent: 23, independent conditional: 22, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 23, independent: 23, independent conditional: 22, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 23, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 51, independent: 28, independent conditional: 28, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 23, unknown conditional: 23, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 271, Positive cache size: 251, Positive conditional cache size: 251, Positive unconditional cache size: 0, Negative cache size: 20, Negative conditional cache size: 20, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 42 PlacesBefore, 39 PlacesAfterwards, 41 TransitionsBefore, 38 TransitionsAfterwards, 86 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 42, independent: 42, independent conditional: 42, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, independent: 12, independent conditional: 12, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, independent: 12, independent conditional: 12, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 42, independent: 30, independent conditional: 30, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 283, Positive cache size: 263, Positive conditional cache size: 263, Positive unconditional cache size: 0, Negative cache size: 20, Negative conditional cache size: 20, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 283, Positive cache size: 263, Positive conditional cache size: 263, Positive unconditional cache size: 0, Negative cache size: 20, Negative conditional cache size: 20, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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, 106 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: 6.0s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 191 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 191 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 497 IncrementalHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 6 mSDtfsCounter, 497 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=290occurred in iteration=8, InterpolantAutomatonStates: 39, 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, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 394 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 09:35:44,278 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...