/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 23:12:11,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 23:12:11,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 23:12:11,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 23:12:11,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 23:12:11,246 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 23:12:11,248 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 23:12:11,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 23:12:11,256 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 23:12:11,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 23:12:11,260 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 23:12:11,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 23:12:11,261 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 23:12:11,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 23:12:11,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 23:12:11,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 23:12:11,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 23:12:11,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 23:12:11,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 23:12:11,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 23:12:11,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 23:12:11,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 23:12:11,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 23:12:11,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 23:12:11,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 23:12:11,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 23:12:11,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 23:12:11,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 23:12:11,283 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 23:12:11,283 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 23:12:11,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 23:12:11,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 23:12:11,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 23:12:11,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 23:12:11,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 23:12:11,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 23:12:11,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 23:12:11,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 23:12:11,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 23:12:11,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 23:12:11,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 23:12:11,290 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-RepeatedSemanticLbe.epf [2022-12-05 23:12:11,315 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 23:12:11,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 23:12:11,317 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 23:12:11,317 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 23:12:11,317 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 23:12:11,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 23:12:11,318 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 23:12:11,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 23:12:11,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 23:12:11,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 23:12:11,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 23:12:11,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 23:12:11,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 23:12:11,319 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 23:12:11,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 23:12:11,319 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 23:12:11,319 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 23:12:11,319 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 23:12:11,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 23:12:11,320 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 23:12:11,320 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 23:12:11,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 23:12:11,320 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 23:12:11,320 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 23:12:11,320 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 23:12:11,320 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 23:12:11,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 23:12:11,320 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-05 23:12:11,321 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 23:12:11,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 23:12:11,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 23:12:11,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 23:12:11,595 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 23:12:11,596 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 23:12:11,597 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 23:12:12,503 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 23:12:12,725 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 23:12:12,725 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 23:12:12,733 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd11515d1/29acf23fb19843cabd2bdeb23905450a/FLAG1559efe22 [2022-12-05 23:12:12,750 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd11515d1/29acf23fb19843cabd2bdeb23905450a [2022-12-05 23:12:12,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 23:12:12,753 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 23:12:12,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 23:12:12,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 23:12:12,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 23:12:12,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:12:12" (1/1) ... [2022-12-05 23:12:12,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28000bb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:12:12, skipping insertion in model container [2022-12-05 23:12:12,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:12:12" (1/1) ... [2022-12-05 23:12:12,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 23:12:12,793 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 23:12:12,885 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/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i[1017,1030] [2022-12-05 23:12:13,008 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,011 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,011 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,014 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,014 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,014 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,020 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,021 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 23:12:13,031 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 23:12:13,041 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/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i[1017,1030] [2022-12-05 23:12:13,061 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,063 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,063 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,064 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,065 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,065 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,065 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,065 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,065 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,065 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,071 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,071 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,071 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,072 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:12:13,073 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:12:13,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 23:12:13,108 INFO L208 MainTranslator]: Completed translation [2022-12-05 23:12:13,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:12:13 WrapperNode [2022-12-05 23:12:13,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 23:12:13,110 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 23:12:13,110 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 23:12:13,110 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 23:12:13,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:12:13" (1/1) ... [2022-12-05 23:12:13,136 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:12:13" (1/1) ... [2022-12-05 23:12:13,149 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2022-12-05 23:12:13,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 23:12:13,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 23:12:13,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 23:12:13,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 23:12:13,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:12:13" (1/1) ... [2022-12-05 23:12:13,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:12:13" (1/1) ... [2022-12-05 23:12:13,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:12:13" (1/1) ... [2022-12-05 23:12:13,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:12:13" (1/1) ... [2022-12-05 23:12:13,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:12:13" (1/1) ... [2022-12-05 23:12:13,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:12:13" (1/1) ... [2022-12-05 23:12:13,176 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:12:13" (1/1) ... [2022-12-05 23:12:13,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:12:13" (1/1) ... [2022-12-05 23:12:13,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 23:12:13,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 23:12:13,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 23:12:13,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 23:12:13,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:12:13" (1/1) ... [2022-12-05 23:12:13,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 23:12:13,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 23:12:13,220 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) [2022-12-05 23:12:13,244 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 [2022-12-05 23:12:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 23:12:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 23:12:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 23:12:13,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 23:12:13,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 23:12:13,267 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-05 23:12:13,268 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-05 23:12:13,268 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-05 23:12:13,268 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-05 23:12:13,268 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-05 23:12:13,268 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-05 23:12:13,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 23:12:13,268 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 23:12:13,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 23:12:13,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 23:12:13,269 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 23:12:13,414 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 23:12:13,415 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 23:12:13,570 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 23:12:13,575 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 23:12:13,575 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 23:12:13,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:12:13 BoogieIcfgContainer [2022-12-05 23:12:13,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 23:12:13,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 23:12:13,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 23:12:13,581 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 23:12:13,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 11:12:12" (1/3) ... [2022-12-05 23:12:13,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ed459a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 11:12:13, skipping insertion in model container [2022-12-05 23:12:13,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:12:13" (2/3) ... [2022-12-05 23:12:13,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ed459a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 11:12:13, skipping insertion in model container [2022-12-05 23:12:13,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:12:13" (3/3) ... [2022-12-05 23:12:13,582 INFO L112 eAbstractionObserver]: Analyzing ICFG safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 23:12:13,596 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 23:12:13,596 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 23:12:13,596 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 23:12:13,667 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-05 23:12:13,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 86 transitions, 187 flow [2022-12-05 23:12:13,743 INFO L130 PetriNetUnfolder]: 2/83 cut-off events. [2022-12-05 23:12:13,744 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 23:12:13,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-05 23:12:13,748 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 86 transitions, 187 flow [2022-12-05 23:12:13,754 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 71 transitions, 151 flow [2022-12-05 23:12:13,756 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:12:13,777 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 71 transitions, 151 flow [2022-12-05 23:12:13,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 71 transitions, 151 flow [2022-12-05 23:12:13,808 INFO L130 PetriNetUnfolder]: 1/71 cut-off events. [2022-12-05 23:12:13,808 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 23:12:13,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 1/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-12-05 23:12:13,811 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 71 transitions, 151 flow [2022-12-05 23:12:13,812 INFO L188 LiptonReduction]: Number of co-enabled transitions 1044 [2022-12-05 23:12:15,676 INFO L203 LiptonReduction]: Total number of compositions: 54 [2022-12-05 23:12:15,699 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 23:12:15,703 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;@76a4b7d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 23:12:15,703 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-05 23:12:15,706 INFO L130 PetriNetUnfolder]: 0/12 cut-off events. [2022-12-05 23:12:15,706 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 23:12:15,706 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:12:15,707 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:12:15,707 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)] === [2022-12-05 23:12:15,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:12:15,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1508305714, now seen corresponding path program 1 times [2022-12-05 23:12:15,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:12:15,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425217399] [2022-12-05 23:12:15,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:12:15,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:12:15,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:12:15,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 23:12:15,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:12:15,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425217399] [2022-12-05 23:12:15,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425217399] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:12:15,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 23:12:15,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-05 23:12:15,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654922338] [2022-12-05 23:12:15,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:12:15,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 23:12:15,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:12:16,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 23:12:16,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 23:12:16,008 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 18 [2022-12-05 23:12:16,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 45 flow. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-12-05 23:12:16,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:12:16,030 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 18 [2022-12-05 23:12:16,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:12:16,089 INFO L130 PetriNetUnfolder]: 143/271 cut-off events. [2022-12-05 23:12:16,090 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-05 23:12:16,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 542 conditions, 271 events. 143/271 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1196 event pairs, 29 based on Foata normal form. 9/276 useless extension candidates. Maximal degree in co-relation 531. Up to 194 conditions per place. [2022-12-05 23:12:16,093 INFO L137 encePairwiseOnDemand]: 14/18 looper letters, 21 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2022-12-05 23:12:16,093 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 26 transitions, 113 flow [2022-12-05 23:12:16,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 23:12:16,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 23:12:16,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2022-12-05 23:12:16,101 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6481481481481481 [2022-12-05 23:12:16,102 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 45 flow. Second operand 3 states and 35 transitions. [2022-12-05 23:12:16,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 26 transitions, 113 flow [2022-12-05 23:12:16,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 26 transitions, 108 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 23:12:16,105 INFO L231 Difference]: Finished difference. Result has 27 places, 17 transitions, 48 flow [2022-12-05 23:12:16,106 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=27, PETRI_TRANSITIONS=17} [2022-12-05 23:12:16,109 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2022-12-05 23:12:16,109 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 23:12:16,109 INFO L89 Accepts]: Start accepts. Operand has 27 places, 17 transitions, 48 flow [2022-12-05 23:12:16,111 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:12:16,111 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:12:16,111 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 17 transitions, 48 flow [2022-12-05 23:12:16,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 17 transitions, 48 flow [2022-12-05 23:12:16,115 INFO L130 PetriNetUnfolder]: 0/17 cut-off events. [2022-12-05 23:12:16,115 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 23:12:16,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-12-05 23:12:16,115 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 17 transitions, 48 flow [2022-12-05 23:12:16,115 INFO L188 LiptonReduction]: Number of co-enabled transitions 124 [2022-12-05 23:12:16,128 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 23:12:16,129 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 20 [2022-12-05 23:12:16,130 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 17 transitions, 48 flow [2022-12-05 23:12:16,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-12-05 23:12:16,130 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:12:16,130 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:12:16,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 23:12:16,130 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)] === [2022-12-05 23:12:16,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:12:16,131 INFO L85 PathProgramCache]: Analyzing trace with hash -487163216, now seen corresponding path program 1 times [2022-12-05 23:12:16,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:12:16,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054323770] [2022-12-05 23:12:16,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:12:16,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:12:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:12:16,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 23:12:16,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:12:16,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054323770] [2022-12-05 23:12:16,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054323770] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:12:16,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 23:12:16,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 23:12:16,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898353103] [2022-12-05 23:12:16,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:12:16,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 23:12:16,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:12:16,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 23:12:16,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-05 23:12:16,230 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 17 [2022-12-05 23:12:16,230 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2022-12-05 23:12:16,230 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:12:16,230 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 17 [2022-12-05 23:12:16,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:12:16,284 INFO L130 PetriNetUnfolder]: 130/246 cut-off events. [2022-12-05 23:12:16,284 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-12-05 23:12:16,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 246 events. 130/246 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 992 event pairs, 50 based on Foata normal form. 6/248 useless extension candidates. Maximal degree in co-relation 551. Up to 135 conditions per place. [2022-12-05 23:12:16,286 INFO L137 encePairwiseOnDemand]: 14/17 looper letters, 17 selfloop transitions, 2 changer transitions 0/22 dead transitions. [2022-12-05 23:12:16,286 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 22 transitions, 99 flow [2022-12-05 23:12:16,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 23:12:16,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 23:12:16,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2022-12-05 23:12:16,287 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5686274509803921 [2022-12-05 23:12:16,287 INFO L175 Difference]: Start difference. First operand has 27 places, 17 transitions, 48 flow. Second operand 3 states and 29 transitions. [2022-12-05 23:12:16,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 22 transitions, 99 flow [2022-12-05 23:12:16,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 22 transitions, 93 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 23:12:16,288 INFO L231 Difference]: Finished difference. Result has 28 places, 17 transitions, 52 flow [2022-12-05 23:12:16,288 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=28, PETRI_TRANSITIONS=17} [2022-12-05 23:12:16,289 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 1 predicate places. [2022-12-05 23:12:16,289 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 23:12:16,289 INFO L89 Accepts]: Start accepts. Operand has 28 places, 17 transitions, 52 flow [2022-12-05 23:12:16,290 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:12:16,290 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:12:16,290 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 17 transitions, 52 flow [2022-12-05 23:12:16,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 17 transitions, 52 flow [2022-12-05 23:12:16,292 INFO L130 PetriNetUnfolder]: 0/17 cut-off events. [2022-12-05 23:12:16,292 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 23:12:16,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 17 events. 0/17 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-12-05 23:12:16,292 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 17 transitions, 52 flow [2022-12-05 23:12:16,292 INFO L188 LiptonReduction]: Number of co-enabled transitions 122 [2022-12-05 23:12:16,295 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 23:12:16,296 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 7 [2022-12-05 23:12:16,296 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 17 transitions, 52 flow [2022-12-05 23:12:16,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2022-12-05 23:12:16,296 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:12:16,296 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:12:16,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 23:12:16,296 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)] === [2022-12-05 23:12:16,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:12:16,297 INFO L85 PathProgramCache]: Analyzing trace with hash -971823805, now seen corresponding path program 1 times [2022-12-05 23:12:16,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:12:16,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135999193] [2022-12-05 23:12:16,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:12:16,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:12:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:12:16,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 23:12:16,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:12:16,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135999193] [2022-12-05 23:12:16,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135999193] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:12:16,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 23:12:16,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 23:12:16,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324744811] [2022-12-05 23:12:16,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:12:16,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 23:12:16,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:12:16,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 23:12:16,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-05 23:12:16,392 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 17 [2022-12-05 23:12:16,392 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 17 transitions, 52 flow. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-12-05 23:12:16,392 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:12:16,392 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 17 [2022-12-05 23:12:16,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:12:16,457 INFO L130 PetriNetUnfolder]: 241/420 cut-off events. [2022-12-05 23:12:16,457 INFO L131 PetriNetUnfolder]: For 99/99 co-relation queries the response was YES. [2022-12-05 23:12:16,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 988 conditions, 420 events. 241/420 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1967 event pairs, 28 based on Foata normal form. 16/429 useless extension candidates. Maximal degree in co-relation 976. Up to 167 conditions per place. [2022-12-05 23:12:16,460 INFO L137 encePairwiseOnDemand]: 11/17 looper letters, 31 selfloop transitions, 7 changer transitions 1/41 dead transitions. [2022-12-05 23:12:16,460 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 41 transitions, 197 flow [2022-12-05 23:12:16,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 23:12:16,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 23:12:16,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2022-12-05 23:12:16,461 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6 [2022-12-05 23:12:16,461 INFO L175 Difference]: Start difference. First operand has 28 places, 17 transitions, 52 flow. Second operand 5 states and 51 transitions. [2022-12-05 23:12:16,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 41 transitions, 197 flow [2022-12-05 23:12:16,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 41 transitions, 189 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 23:12:16,462 INFO L231 Difference]: Finished difference. Result has 33 places, 22 transitions, 98 flow [2022-12-05 23:12:16,462 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=98, PETRI_PLACES=33, PETRI_TRANSITIONS=22} [2022-12-05 23:12:16,463 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 6 predicate places. [2022-12-05 23:12:16,463 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 23:12:16,463 INFO L89 Accepts]: Start accepts. Operand has 33 places, 22 transitions, 98 flow [2022-12-05 23:12:16,464 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:12:16,464 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:12:16,464 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 22 transitions, 98 flow [2022-12-05 23:12:16,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 22 transitions, 98 flow [2022-12-05 23:12:16,468 INFO L130 PetriNetUnfolder]: 8/53 cut-off events. [2022-12-05 23:12:16,468 INFO L131 PetriNetUnfolder]: For 17/21 co-relation queries the response was YES. [2022-12-05 23:12:16,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 53 events. 8/53 cut-off events. For 17/21 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 217 event pairs, 2 based on Foata normal form. 1/52 useless extension candidates. Maximal degree in co-relation 117. Up to 16 conditions per place. [2022-12-05 23:12:16,469 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 22 transitions, 98 flow [2022-12-05 23:12:16,469 INFO L188 LiptonReduction]: Number of co-enabled transitions 162 [2022-12-05 23:12:16,470 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 23:12:16,470 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 7 [2022-12-05 23:12:16,471 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 22 transitions, 98 flow [2022-12-05 23:12:16,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-12-05 23:12:16,471 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:12:16,471 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:12:16,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 23:12:16,471 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)] === [2022-12-05 23:12:16,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:12:16,471 INFO L85 PathProgramCache]: Analyzing trace with hash 2078119797, now seen corresponding path program 2 times [2022-12-05 23:12:16,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:12:16,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814145015] [2022-12-05 23:12:16,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:12:16,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:12:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:12:16,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 23:12:16,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:12:16,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814145015] [2022-12-05 23:12:16,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814145015] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:12:16,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 23:12:16,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 23:12:16,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906077384] [2022-12-05 23:12:16,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:12:16,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 23:12:16,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:12:16,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 23:12:16,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-05 23:12:16,557 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 17 [2022-12-05 23:12:16,557 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 22 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-12-05 23:12:16,557 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:12:16,557 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 17 [2022-12-05 23:12:16,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:12:16,611 INFO L130 PetriNetUnfolder]: 287/520 cut-off events. [2022-12-05 23:12:16,612 INFO L131 PetriNetUnfolder]: For 505/512 co-relation queries the response was YES. [2022-12-05 23:12:16,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1440 conditions, 520 events. 287/520 cut-off events. For 505/512 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2503 event pairs, 77 based on Foata normal form. 22/538 useless extension candidates. Maximal degree in co-relation 1425. Up to 177 conditions per place. [2022-12-05 23:12:16,614 INFO L137 encePairwiseOnDemand]: 13/17 looper letters, 21 selfloop transitions, 5 changer transitions 6/35 dead transitions. [2022-12-05 23:12:16,614 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 35 transitions, 210 flow [2022-12-05 23:12:16,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 23:12:16,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 23:12:16,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2022-12-05 23:12:16,615 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5147058823529411 [2022-12-05 23:12:16,615 INFO L175 Difference]: Start difference. First operand has 33 places, 22 transitions, 98 flow. Second operand 4 states and 35 transitions. [2022-12-05 23:12:16,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 35 transitions, 210 flow [2022-12-05 23:12:16,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 35 transitions, 206 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 23:12:16,617 INFO L231 Difference]: Finished difference. Result has 37 places, 23 transitions, 124 flow [2022-12-05 23:12:16,617 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=124, PETRI_PLACES=37, PETRI_TRANSITIONS=23} [2022-12-05 23:12:16,618 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 10 predicate places. [2022-12-05 23:12:16,618 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 23:12:16,618 INFO L89 Accepts]: Start accepts. Operand has 37 places, 23 transitions, 124 flow [2022-12-05 23:12:16,618 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:12:16,618 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:12:16,619 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 23 transitions, 124 flow [2022-12-05 23:12:16,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 23 transitions, 124 flow [2022-12-05 23:12:16,622 INFO L130 PetriNetUnfolder]: 5/49 cut-off events. [2022-12-05 23:12:16,622 INFO L131 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2022-12-05 23:12:16,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 49 events. 5/49 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 202 event pairs, 1 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 121. Up to 14 conditions per place. [2022-12-05 23:12:16,623 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 23 transitions, 124 flow [2022-12-05 23:12:16,623 INFO L188 LiptonReduction]: Number of co-enabled transitions 134 [2022-12-05 23:12:16,645 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-05 23:12:16,646 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 28 [2022-12-05 23:12:16,646 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 23 transitions, 128 flow [2022-12-05 23:12:16,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-12-05 23:12:16,646 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:12:16,646 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:12:16,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 23:12:16,647 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)] === [2022-12-05 23:12:16,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:12:16,647 INFO L85 PathProgramCache]: Analyzing trace with hash -2838111, now seen corresponding path program 1 times [2022-12-05 23:12:16,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:12:16,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587424139] [2022-12-05 23:12:16,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:12:16,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:12:16,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:12:16,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 23:12:16,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:12:16,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587424139] [2022-12-05 23:12:16,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587424139] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:12:16,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 23:12:16,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 23:12:16,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442991725] [2022-12-05 23:12:16,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:12:16,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 23:12:16,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:12:16,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 23:12:16,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-05 23:12:16,737 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 18 [2022-12-05 23:12:16,737 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 23 transitions, 128 flow. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2022-12-05 23:12:16,738 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:12:16,738 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 18 [2022-12-05 23:12:16,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:12:16,779 INFO L130 PetriNetUnfolder]: 170/337 cut-off events. [2022-12-05 23:12:16,779 INFO L131 PetriNetUnfolder]: For 446/451 co-relation queries the response was YES. [2022-12-05 23:12:16,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 990 conditions, 337 events. 170/337 cut-off events. For 446/451 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1683 event pairs, 74 based on Foata normal form. 8/334 useless extension candidates. Maximal degree in co-relation 972. Up to 265 conditions per place. [2022-12-05 23:12:16,780 INFO L137 encePairwiseOnDemand]: 15/18 looper letters, 22 selfloop transitions, 3 changer transitions 1/30 dead transitions. [2022-12-05 23:12:16,780 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 30 transitions, 207 flow [2022-12-05 23:12:16,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 23:12:16,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 23:12:16,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2022-12-05 23:12:16,781 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5925925925925926 [2022-12-05 23:12:16,781 INFO L175 Difference]: Start difference. First operand has 37 places, 23 transitions, 128 flow. Second operand 3 states and 32 transitions. [2022-12-05 23:12:16,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 30 transitions, 207 flow [2022-12-05 23:12:16,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 30 transitions, 189 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-12-05 23:12:16,783 INFO L231 Difference]: Finished difference. Result has 37 places, 22 transitions, 116 flow [2022-12-05 23:12:16,784 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=37, PETRI_TRANSITIONS=22} [2022-12-05 23:12:16,784 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 10 predicate places. [2022-12-05 23:12:16,784 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 23:12:16,784 INFO L89 Accepts]: Start accepts. Operand has 37 places, 22 transitions, 116 flow [2022-12-05 23:12:16,785 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:12:16,785 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:12:16,785 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 22 transitions, 116 flow [2022-12-05 23:12:16,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 22 transitions, 116 flow [2022-12-05 23:12:16,788 INFO L130 PetriNetUnfolder]: 4/33 cut-off events. [2022-12-05 23:12:16,788 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-12-05 23:12:16,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 33 events. 4/33 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 85 event pairs, 1 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 79. Up to 9 conditions per place. [2022-12-05 23:12:16,788 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 22 transitions, 116 flow [2022-12-05 23:12:16,788 INFO L188 LiptonReduction]: Number of co-enabled transitions 96 [2022-12-05 23:12:16,790 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [186] L743-->L746: Formula: (= v_~y~0_1 1) InVars {} OutVars{~y~0=v_~y~0_1} AuxVars[] AssignedVars[~y~0] and [236] $Ultimate##0-->L728: Formula: (and (= v_P0Thread1of1ForFork2_~arg.offset_5 |v_P0Thread1of1ForFork2_#in~arg.offset_5|) (= v_P0Thread1of1ForFork2_~arg.base_5 |v_P0Thread1of1ForFork2_#in~arg.base_5|) (= v_~z~0_20 v_~__unbuffered_p0_EAX~0_24)) InVars {P0Thread1of1ForFork2_#in~arg.offset=|v_P0Thread1of1ForFork2_#in~arg.offset_5|, P0Thread1of1ForFork2_#in~arg.base=|v_P0Thread1of1ForFork2_#in~arg.base_5|, ~z~0=v_~z~0_20} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_24, P0Thread1of1ForFork2_#in~arg.offset=|v_P0Thread1of1ForFork2_#in~arg.offset_5|, P0Thread1of1ForFork2_~arg.offset=v_P0Thread1of1ForFork2_~arg.offset_5, P0Thread1of1ForFork2_#in~arg.base=|v_P0Thread1of1ForFork2_#in~arg.base_5|, ~z~0=v_~z~0_20, P0Thread1of1ForFork2_~arg.base=v_P0Thread1of1ForFork2_~arg.base_5} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork2_~arg.offset, P0Thread1of1ForFork2_~arg.base] [2022-12-05 23:12:16,822 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-05 23:12:16,823 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 39 [2022-12-05 23:12:16,823 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 20 transitions, 112 flow [2022-12-05 23:12:16,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2022-12-05 23:12:16,823 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:12:16,823 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:12:16,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 23:12:16,824 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)] === [2022-12-05 23:12:16,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:12:16,824 INFO L85 PathProgramCache]: Analyzing trace with hash -11799436, now seen corresponding path program 1 times [2022-12-05 23:12:16,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:12:16,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891711686] [2022-12-05 23:12:16,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:12:16,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:12:16,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:12:16,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 23:12:16,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:12:16,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891711686] [2022-12-05 23:12:16,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891711686] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:12:16,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 23:12:16,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 23:12:16,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973370108] [2022-12-05 23:12:16,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:12:16,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 23:12:16,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:12:16,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 23:12:16,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-05 23:12:16,892 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 18 [2022-12-05 23:12:16,892 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 20 transitions, 112 flow. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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) [2022-12-05 23:12:16,892 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:12:16,892 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 18 [2022-12-05 23:12:16,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:12:16,934 INFO L130 PetriNetUnfolder]: 131/248 cut-off events. [2022-12-05 23:12:16,934 INFO L131 PetriNetUnfolder]: For 520/521 co-relation queries the response was YES. [2022-12-05 23:12:16,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 752 conditions, 248 events. 131/248 cut-off events. For 520/521 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 887 event pairs, 43 based on Foata normal form. 18/265 useless extension candidates. Maximal degree in co-relation 734. Up to 105 conditions per place. [2022-12-05 23:12:16,935 INFO L137 encePairwiseOnDemand]: 14/18 looper letters, 17 selfloop transitions, 3 changer transitions 7/28 dead transitions. [2022-12-05 23:12:16,935 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 28 transitions, 187 flow [2022-12-05 23:12:16,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 23:12:16,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 23:12:16,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2022-12-05 23:12:16,936 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4305555555555556 [2022-12-05 23:12:16,936 INFO L175 Difference]: Start difference. First operand has 35 places, 20 transitions, 112 flow. Second operand 4 states and 31 transitions. [2022-12-05 23:12:16,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 28 transitions, 187 flow [2022-12-05 23:12:16,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 28 transitions, 159 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-12-05 23:12:16,938 INFO L231 Difference]: Finished difference. Result has 34 places, 16 transitions, 74 flow [2022-12-05 23:12:16,938 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=74, PETRI_PLACES=34, PETRI_TRANSITIONS=16} [2022-12-05 23:12:16,939 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 7 predicate places. [2022-12-05 23:12:16,939 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 23:12:16,939 INFO L89 Accepts]: Start accepts. Operand has 34 places, 16 transitions, 74 flow [2022-12-05 23:12:16,939 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:12:16,939 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:12:16,939 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 16 transitions, 74 flow [2022-12-05 23:12:16,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 16 transitions, 74 flow [2022-12-05 23:12:16,941 INFO L130 PetriNetUnfolder]: 0/16 cut-off events. [2022-12-05 23:12:16,941 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-05 23:12:16,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 16 events. 0/16 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 9 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2022-12-05 23:12:16,942 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 16 transitions, 74 flow [2022-12-05 23:12:16,942 INFO L188 LiptonReduction]: Number of co-enabled transitions 42 [2022-12-05 23:12:16,958 ERROR L799 SequenceRule]: Run adaptation not supported for post-scripts [2022-12-05 23:12:16,961 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [180] L728-->L731: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] and [263] $Ultimate##0-->L746: Formula: (and (= v_~x~0_38 v_~__unbuffered_p1_EAX~0_50) (= v_P1Thread1of1ForFork0_~arg.base_19 |v_P1Thread1of1ForFork0_#in~arg.base_19|) (= v_~y~0_44 1) (= |v_P1Thread1of1ForFork0_#in~arg.offset_19| v_P1Thread1of1ForFork0_~arg.offset_19)) InVars {P1Thread1of1ForFork0_#in~arg.base=|v_P1Thread1of1ForFork0_#in~arg.base_19|, P1Thread1of1ForFork0_#in~arg.offset=|v_P1Thread1of1ForFork0_#in~arg.offset_19|, ~x~0=v_~x~0_38} OutVars{P1Thread1of1ForFork0_~arg.offset=v_P1Thread1of1ForFork0_~arg.offset_19, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_50, P1Thread1of1ForFork0_~arg.base=v_P1Thread1of1ForFork0_~arg.base_19, P1Thread1of1ForFork0_#in~arg.base=|v_P1Thread1of1ForFork0_#in~arg.base_19|, P1Thread1of1ForFork0_#in~arg.offset=|v_P1Thread1of1ForFork0_#in~arg.offset_19|, ~y~0=v_~y~0_44, ~x~0=v_~x~0_38} AuxVars[] AssignedVars[P1Thread1of1ForFork0_~arg.offset, ~__unbuffered_p1_EAX~0, P1Thread1of1ForFork0_~arg.base, ~y~0] [2022-12-05 23:12:16,980 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [262] $Ultimate##0-->L761: Formula: (and (= v_P2Thread1of1ForFork1_~arg.base_19 |v_P2Thread1of1ForFork1_#in~arg.base_19|) (= v_~y~0_42 v_~__unbuffered_p2_EAX~0_54) (= v_~z~0_46 1) (= v_P2Thread1of1ForFork1_~arg.offset_19 |v_P2Thread1of1ForFork1_#in~arg.offset_19|)) InVars {P2Thread1of1ForFork1_#in~arg.offset=|v_P2Thread1of1ForFork1_#in~arg.offset_19|, P2Thread1of1ForFork1_#in~arg.base=|v_P2Thread1of1ForFork1_#in~arg.base_19|, ~y~0=v_~y~0_42} OutVars{P2Thread1of1ForFork1_#in~arg.offset=|v_P2Thread1of1ForFork1_#in~arg.offset_19|, P2Thread1of1ForFork1_~arg.offset=v_P2Thread1of1ForFork1_~arg.offset_19, P2Thread1of1ForFork1_~arg.base=v_P2Thread1of1ForFork1_~arg.base_19, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_54, P2Thread1of1ForFork1_#in~arg.base=|v_P2Thread1of1ForFork1_#in~arg.base_19|, ~z~0=v_~z~0_46, ~y~0=v_~y~0_42} AuxVars[] AssignedVars[P2Thread1of1ForFork1_~arg.offset, P2Thread1of1ForFork1_~arg.base, ~__unbuffered_p2_EAX~0, ~z~0] and [236] $Ultimate##0-->L728: Formula: (and (= v_P0Thread1of1ForFork2_~arg.offset_5 |v_P0Thread1of1ForFork2_#in~arg.offset_5|) (= v_P0Thread1of1ForFork2_~arg.base_5 |v_P0Thread1of1ForFork2_#in~arg.base_5|) (= v_~z~0_20 v_~__unbuffered_p0_EAX~0_24)) InVars {P0Thread1of1ForFork2_#in~arg.offset=|v_P0Thread1of1ForFork2_#in~arg.offset_5|, P0Thread1of1ForFork2_#in~arg.base=|v_P0Thread1of1ForFork2_#in~arg.base_5|, ~z~0=v_~z~0_20} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_24, P0Thread1of1ForFork2_#in~arg.offset=|v_P0Thread1of1ForFork2_#in~arg.offset_5|, P0Thread1of1ForFork2_~arg.offset=v_P0Thread1of1ForFork2_~arg.offset_5, P0Thread1of1ForFork2_#in~arg.base=|v_P0Thread1of1ForFork2_#in~arg.base_5|, ~z~0=v_~z~0_20, P0Thread1of1ForFork2_~arg.base=v_P0Thread1of1ForFork2_~arg.base_5} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork2_~arg.offset, P0Thread1of1ForFork2_~arg.base] [2022-12-05 23:12:17,075 INFO L203 LiptonReduction]: Total number of compositions: 4 [2022-12-05 23:12:17,076 ERROR L123 eatedLiptonReduction]: Lipton reduction run adaptation of counterexample failed. [2022-12-05 23:12:17,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 23:12:17,077 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Lipton reduction run adaptation failed, and the cached counterexample word contains letters no longer in the reduced abstraction's alphabet! at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.applyLargeBlockEncoding(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:125) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.refineAbstraction(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-05 23:12:17,079 INFO L158 Benchmark]: Toolchain (without parser) took 4326.60ms. Allocated memory was 207.6MB in the beginning and 249.6MB in the end (delta: 41.9MB). Free memory was 181.6MB in the beginning and 221.3MB in the end (delta: -39.7MB). Peak memory consumption was 141.1MB. Max. memory is 8.0GB. [2022-12-05 23:12:17,079 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 207.6MB. Free memory is still 183.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 23:12:17,080 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.68ms. Allocated memory is still 207.6MB. Free memory was 181.6MB in the beginning and 158.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-05 23:12:17,080 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.44ms. Allocated memory is still 207.6MB. Free memory was 158.5MB in the beginning and 156.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 23:12:17,080 INFO L158 Benchmark]: Boogie Preprocessor took 28.39ms. Allocated memory is still 207.6MB. Free memory was 156.4MB in the beginning and 154.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 23:12:17,080 INFO L158 Benchmark]: RCFGBuilder took 398.86ms. Allocated memory is still 207.6MB. Free memory was 154.8MB in the beginning and 140.7MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-05 23:12:17,080 INFO L158 Benchmark]: TraceAbstraction took 3500.26ms. Allocated memory was 207.6MB in the beginning and 249.6MB in the end (delta: 41.9MB). Free memory was 140.1MB in the beginning and 221.3MB in the end (delta: -81.1MB). Peak memory consumption was 100.3MB. Max. memory is 8.0GB. [2022-12-05 23:12:17,081 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 207.6MB. Free memory is still 183.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 355.68ms. Allocated memory is still 207.6MB. Free memory was 181.6MB in the beginning and 158.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.44ms. Allocated memory is still 207.6MB. Free memory was 158.5MB in the beginning and 156.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.39ms. Allocated memory is still 207.6MB. Free memory was 156.4MB in the beginning and 154.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 398.86ms. Allocated memory is still 207.6MB. Free memory was 154.8MB in the beginning and 140.7MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 3500.26ms. Allocated memory was 207.6MB in the beginning and 249.6MB in the end (delta: 41.9MB). Free memory was 140.1MB in the beginning and 221.3MB in the end (delta: -81.1MB). Peak memory consumption was 100.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 80 PlacesBefore, 27 PlacesAfterwards, 71 TransitionsBefore, 18 TransitionsAfterwards, 1044 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 21 TrivialYvCompositions, 32 ConcurrentYvCompositions, 0 ChoiceCompositions, 54 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 798, independent: 763, independent conditional: 763, independent unconditional: 0, dependent: 35, dependent conditional: 35, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 798, independent: 763, independent conditional: 0, independent unconditional: 763, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 798, independent: 763, independent conditional: 0, independent unconditional: 763, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 798, independent: 763, independent conditional: 0, independent unconditional: 763, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 666, independent: 639, independent conditional: 0, independent unconditional: 639, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 666, independent: 632, independent conditional: 0, independent unconditional: 632, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 34, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 50, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 798, independent: 124, independent conditional: 0, independent unconditional: 124, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 666, unknown conditional: 0, unknown unconditional: 666] , Statistics on independence cache: Total cache size (in pairs): 954, Positive cache size: 927, Positive conditional cache size: 0, Positive unconditional cache size: 927, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 27 PlacesBefore, 27 PlacesAfterwards, 17 TransitionsBefore, 17 TransitionsAfterwards, 124 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 58, independent: 46, independent conditional: 46, independent unconditional: 0, dependent: 12, dependent conditional: 12, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 58, independent: 46, independent conditional: 6, independent unconditional: 40, dependent: 12, dependent conditional: 2, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 58, independent: 46, independent conditional: 0, independent unconditional: 46, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 58, independent: 46, independent conditional: 0, independent unconditional: 46, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 50, independent: 41, independent conditional: 0, independent unconditional: 41, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 50, independent: 37, independent conditional: 0, independent unconditional: 37, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 13, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 12, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 58, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 50, unknown conditional: 0, unknown unconditional: 50] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 41, Positive conditional cache size: 0, Positive unconditional cache size: 41, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 8, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 28 PlacesBefore, 28 PlacesAfterwards, 17 TransitionsBefore, 17 TransitionsAfterwards, 122 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 56, independent: 45, independent conditional: 45, independent unconditional: 0, dependent: 11, dependent conditional: 11, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 56, independent: 45, independent conditional: 2, independent unconditional: 43, dependent: 11, dependent conditional: 2, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 56, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 56, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, independent: 11, independent conditional: 0, independent unconditional: 11, 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: 12, independent: 11, independent conditional: 0, independent unconditional: 11, 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: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 56, independent: 34, independent conditional: 0, independent unconditional: 34, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 12, unknown conditional: 0, unknown unconditional: 12] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 52, Positive conditional cache size: 0, Positive unconditional cache size: 52, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 33 PlacesBefore, 33 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 162 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 35, independent: 26, independent conditional: 26, independent unconditional: 0, dependent: 9, dependent conditional: 9, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 35, independent: 26, independent conditional: 6, independent unconditional: 20, dependent: 9, dependent conditional: 6, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 35, independent: 26, independent conditional: 1, independent unconditional: 25, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 35, independent: 26, independent conditional: 1, independent unconditional: 25, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, 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: 2, independent: 2, independent conditional: 0, independent unconditional: 2, 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: 35, independent: 24, independent conditional: 1, independent unconditional: 23, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 64, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 11, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 37 PlacesBefore, 37 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 134 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 107, independent: 92, independent conditional: 92, independent unconditional: 0, dependent: 15, dependent conditional: 15, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 107, independent: 92, independent conditional: 44, independent unconditional: 48, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 107, independent: 92, independent conditional: 5, independent unconditional: 87, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 107, independent: 92, independent conditional: 5, independent unconditional: 87, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, independent: 11, independent conditional: 1, independent unconditional: 10, 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: 11, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 107, independent: 81, independent conditional: 4, independent unconditional: 77, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 11, unknown conditional: 1, unknown unconditional: 10] , Statistics on independence cache: Total cache size (in pairs): 77, Positive cache size: 67, Positive conditional cache size: 1, Positive unconditional cache size: 66, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 39, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 37 PlacesBefore, 35 PlacesAfterwards, 22 TransitionsBefore, 20 TransitionsAfterwards, 96 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 46, independent: 31, independent conditional: 31, independent unconditional: 0, dependent: 15, dependent conditional: 15, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 46, independent: 31, independent conditional: 22, independent unconditional: 9, dependent: 15, dependent conditional: 6, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 46, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 46, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, independent: 6, independent conditional: 0, independent unconditional: 6, 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: 6, independent: 6, independent conditional: 0, independent unconditional: 6, 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: 46, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 78, Positive conditional cache size: 1, Positive unconditional cache size: 77, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 28, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 34 PlacesBefore, 29 PlacesAfterwards, 16 TransitionsBefore, 12 TransitionsAfterwards, 42 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21, independent: 13, independent conditional: 13, independent unconditional: 0, dependent: 8, dependent conditional: 8, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 21, independent: 13, independent conditional: 13, independent unconditional: 0, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 21, independent: 13, independent conditional: 2, independent unconditional: 11, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 21, independent: 13, independent conditional: 2, independent unconditional: 11, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, 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: 2, independent: 2, independent conditional: 0, independent unconditional: 2, 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: 21, independent: 11, independent conditional: 2, independent unconditional: 9, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 102, Positive cache size: 92, Positive conditional cache size: 1, Positive unconditional cache size: 91, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 11, Maximal queried relation: 0 - ExceptionOrErrorResult: AssertionError: Lipton reduction run adaptation failed, and the cached counterexample word contains letters no longer in the reduced abstraction's alphabet! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Lipton reduction run adaptation failed, and the cached counterexample word contains letters no longer in the reduced abstraction's alphabet!: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.applyLargeBlockEncoding(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:125) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-12-05 23:12:17,096 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...