/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-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix018_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 21:33:51,022 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 21:33:51,025 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 21:33:51,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 21:33:51,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 21:33:51,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 21:33:51,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 21:33:51,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 21:33:51,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 21:33:51,111 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 21:33:51,112 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 21:33:51,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 21:33:51,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 21:33:51,117 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 21:33:51,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 21:33:51,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 21:33:51,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 21:33:51,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 21:33:51,124 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 21:33:51,129 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 21:33:51,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 21:33:51,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 21:33:51,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 21:33:51,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 21:33:51,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 21:33:51,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 21:33:51,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 21:33:51,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 21:33:51,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 21:33:51,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 21:33:51,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 21:33:51,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 21:33:51,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 21:33:51,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 21:33:51,146 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 21:33:51,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 21:33:51,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 21:33:51,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 21:33:51,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 21:33:51,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 21:33:51,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 21:33:51,150 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-SemanticLbe.epf [2022-12-12 21:33:51,178 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 21:33:51,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 21:33:51,180 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 21:33:51,180 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 21:33:51,180 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 21:33:51,181 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 21:33:51,181 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 21:33:51,182 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 21:33:51,182 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 21:33:51,182 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 21:33:51,183 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 21:33:51,183 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 21:33:51,183 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 21:33:51,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 21:33:51,183 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 21:33:51,183 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 21:33:51,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 21:33:51,184 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 21:33:51,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 21:33:51,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 21:33:51,184 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 21:33:51,184 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 21:33:51,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 21:33:51,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:33:51,185 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 21:33:51,185 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 21:33:51,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 21:33:51,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 21:33:51,185 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 21:33:51,185 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 21:33:51,185 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 21:33:51,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 21:33:51,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 21:33:51,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 21:33:51,530 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 21:33:51,530 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 21:33:51,531 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix018_tso.oepc.i [2022-12-12 21:33:52,612 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 21:33:52,922 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 21:33:52,922 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix018_tso.oepc.i [2022-12-12 21:33:52,949 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8f2c22d4/be511e87364f4b47ac7c19015588b07c/FLAG4dc939be1 [2022-12-12 21:33:52,964 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8f2c22d4/be511e87364f4b47ac7c19015588b07c [2022-12-12 21:33:52,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 21:33:52,968 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 21:33:52,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 21:33:52,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 21:33:52,975 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 21:33:52,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:33:52" (1/1) ... [2022-12-12 21:33:52,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1be01e5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:52, skipping insertion in model container [2022-12-12 21:33:52,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:33:52" (1/1) ... [2022-12-12 21:33:52,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 21:33:53,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 21:33:53,225 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/mix018_tso.oepc.i[949,962] [2022-12-12 21:33:53,392 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,393 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,393 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,394 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,394 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,400 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,400 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,401 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,402 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,404 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,404 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,405 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,405 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,412 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,429 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,429 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,429 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,431 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,431 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,431 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,432 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,432 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,433 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,433 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,453 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,453 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,463 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,464 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,471 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:33:53,485 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 21:33:53,494 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/mix018_tso.oepc.i[949,962] [2022-12-12 21:33:53,522 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,523 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,523 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,523 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,524 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,527 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,527 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,527 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,527 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,529 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,529 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,529 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,531 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,531 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,544 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:53,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:53,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:33:53,591 INFO L208 MainTranslator]: Completed translation [2022-12-12 21:33:53,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:53 WrapperNode [2022-12-12 21:33:53,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 21:33:53,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 21:33:53,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 21:33:53,593 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 21:33:53,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:53" (1/1) ... [2022-12-12 21:33:53,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:53" (1/1) ... [2022-12-12 21:33:53,650 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 160 [2022-12-12 21:33:53,650 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 21:33:53,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 21:33:53,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 21:33:53,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 21:33:53,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:53" (1/1) ... [2022-12-12 21:33:53,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:53" (1/1) ... [2022-12-12 21:33:53,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:53" (1/1) ... [2022-12-12 21:33:53,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:53" (1/1) ... [2022-12-12 21:33:53,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:53" (1/1) ... [2022-12-12 21:33:53,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:53" (1/1) ... [2022-12-12 21:33:53,675 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:53" (1/1) ... [2022-12-12 21:33:53,676 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:53" (1/1) ... [2022-12-12 21:33:53,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 21:33:53,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 21:33:53,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 21:33:53,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 21:33:53,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:53" (1/1) ... [2022-12-12 21:33:53,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:33:53,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 21:33:53,721 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) [2022-12-12 21:33:53,732 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 [2022-12-12 21:33:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 21:33:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 21:33:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 21:33:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 21:33:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 21:33:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 21:33:53,763 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 21:33:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 21:33:53,764 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 21:33:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-12 21:33:53,764 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-12 21:33:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-12 21:33:53,764 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-12 21:33:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 21:33:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 21:33:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 21:33:53,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 21:33:53,766 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 21:33:53,884 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 21:33:53,886 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 21:33:54,263 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 21:33:54,414 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 21:33:54,414 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 21:33:54,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:33:54 BoogieIcfgContainer [2022-12-12 21:33:54,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 21:33:54,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 21:33:54,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 21:33:54,422 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 21:33:54,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 09:33:52" (1/3) ... [2022-12-12 21:33:54,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2718e224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:33:54, skipping insertion in model container [2022-12-12 21:33:54,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:53" (2/3) ... [2022-12-12 21:33:54,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2718e224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:33:54, skipping insertion in model container [2022-12-12 21:33:54,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:33:54" (3/3) ... [2022-12-12 21:33:54,424 INFO L112 eAbstractionObserver]: Analyzing ICFG mix018_tso.oepc.i [2022-12-12 21:33:54,442 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 21:33:54,442 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-12 21:33:54,442 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 21:33:54,513 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 21:33:54,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 131 transitions, 282 flow [2022-12-12 21:33:54,641 INFO L130 PetriNetUnfolder]: 2/127 cut-off events. [2022-12-12 21:33:54,642 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:33:54,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 127 events. 2/127 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 68 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2022-12-12 21:33:54,649 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 131 transitions, 282 flow [2022-12-12 21:33:54,657 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 127 transitions, 266 flow [2022-12-12 21:33:54,660 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 21:33:54,686 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 138 places, 127 transitions, 266 flow [2022-12-12 21:33:54,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 127 transitions, 266 flow [2022-12-12 21:33:54,733 INFO L130 PetriNetUnfolder]: 2/127 cut-off events. [2022-12-12 21:33:54,737 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:33:54,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 127 events. 2/127 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 68 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2022-12-12 21:33:54,743 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 138 places, 127 transitions, 266 flow [2022-12-12 21:33:54,743 INFO L226 LiptonReduction]: Number of co-enabled transitions 3150 [2022-12-12 21:34:05,425 INFO L241 LiptonReduction]: Total number of compositions: 98 [2022-12-12 21:34:05,439 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 21:34:05,445 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@37faeaea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 21:34:05,445 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-12 21:34:05,448 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2022-12-12 21:34:05,448 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:34:05,449 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:34:05,449 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-12 21:34:05,449 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:34:05,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:34:05,454 INFO L85 PathProgramCache]: Analyzing trace with hash 540957260, now seen corresponding path program 1 times [2022-12-12 21:34:05,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:34:05,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706367613] [2022-12-12 21:34:05,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:34:05,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:34:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:34:05,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:34:05,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:34:05,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706367613] [2022-12-12 21:34:05,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706367613] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:34:05,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:34:05,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 21:34:05,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305365461] [2022-12-12 21:34:05,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:34:05,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:34:05,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:34:05,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:34:05,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:34:05,915 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 79 [2022-12-12 21:34:05,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 79 transitions, 170 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2022-12-12 21:34:05,917 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:34:05,917 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 79 [2022-12-12 21:34:05,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:34:14,577 INFO L130 PetriNetUnfolder]: 57424/81317 cut-off events. [2022-12-12 21:34:14,577 INFO L131 PetriNetUnfolder]: For 146/146 co-relation queries the response was YES. [2022-12-12 21:34:14,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157470 conditions, 81317 events. 57424/81317 cut-off events. For 146/146 co-relation queries the response was YES. Maximal size of possible extension queue 4058. Compared 592700 event pairs, 22678 based on Foata normal form. 0/50894 useless extension candidates. Maximal degree in co-relation 157458. Up to 63597 conditions per place. [2022-12-12 21:34:14,896 INFO L137 encePairwiseOnDemand]: 73/79 looper letters, 44 selfloop transitions, 2 changer transitions 64/126 dead transitions. [2022-12-12 21:34:14,896 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 126 transitions, 490 flow [2022-12-12 21:34:14,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:34:14,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:34:14,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 165 transitions. [2022-12-12 21:34:14,909 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6962025316455697 [2022-12-12 21:34:14,913 INFO L295 CegarLoopForPetriNet]: 91 programPoint places, -1 predicate places. [2022-12-12 21:34:14,913 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 126 transitions, 490 flow [2022-12-12 21:34:15,013 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 62 transitions, 234 flow [2022-12-12 21:34:15,014 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 62 transitions, 234 flow [2022-12-12 21:34:15,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2022-12-12 21:34:15,015 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:34:15,016 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:34:15,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 21:34:15,016 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:34:15,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:34:15,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1560289086, now seen corresponding path program 1 times [2022-12-12 21:34:15,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:34:15,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990054201] [2022-12-12 21:34:15,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:34:15,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:34:15,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:34:15,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:34:15,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:34:15,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990054201] [2022-12-12 21:34:15,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990054201] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:34:15,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:34:15,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:34:15,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706570200] [2022-12-12 21:34:15,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:34:15,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:34:15,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:34:15,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:34:15,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:34:15,660 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 79 [2022-12-12 21:34:15,660 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 62 transitions, 234 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2022-12-12 21:34:15,660 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:34:15,660 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 79 [2022-12-12 21:34:15,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:34:17,860 INFO L130 PetriNetUnfolder]: 18491/25631 cut-off events. [2022-12-12 21:34:17,860 INFO L131 PetriNetUnfolder]: For 4390/4390 co-relation queries the response was YES. [2022-12-12 21:34:17,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70842 conditions, 25631 events. 18491/25631 cut-off events. For 4390/4390 co-relation queries the response was YES. Maximal size of possible extension queue 796. Compared 142177 event pairs, 1891 based on Foata normal form. 432/22149 useless extension candidates. Maximal degree in co-relation 70827. Up to 18145 conditions per place. [2022-12-12 21:34:17,998 INFO L137 encePairwiseOnDemand]: 76/79 looper letters, 76 selfloop transitions, 2 changer transitions 0/89 dead transitions. [2022-12-12 21:34:17,998 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 89 transitions, 492 flow [2022-12-12 21:34:17,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:34:17,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:34:18,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2022-12-12 21:34:18,001 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.350210970464135 [2022-12-12 21:34:18,002 INFO L295 CegarLoopForPetriNet]: 91 programPoint places, -31 predicate places. [2022-12-12 21:34:18,002 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 89 transitions, 492 flow [2022-12-12 21:34:18,117 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 89 transitions, 492 flow [2022-12-12 21:34:18,117 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 89 transitions, 492 flow [2022-12-12 21:34:18,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2022-12-12 21:34:18,117 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:34:18,118 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:34:18,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 21:34:18,118 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:34:18,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:34:18,121 INFO L85 PathProgramCache]: Analyzing trace with hash -598502984, now seen corresponding path program 1 times [2022-12-12 21:34:18,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:34:18,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072931178] [2022-12-12 21:34:18,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:34:18,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:34:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:34:18,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:34:18,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:34:18,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072931178] [2022-12-12 21:34:18,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072931178] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:34:18,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:34:18,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:34:18,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73472177] [2022-12-12 21:34:18,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:34:18,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:34:18,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:34:18,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:34:18,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:34:18,756 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 79 [2022-12-12 21:34:18,756 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 89 transitions, 492 flow. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2022-12-12 21:34:18,757 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:34:18,757 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 79 [2022-12-12 21:34:18,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:34:20,558 INFO L130 PetriNetUnfolder]: 18273/25359 cut-off events. [2022-12-12 21:34:20,559 INFO L131 PetriNetUnfolder]: For 13603/13603 co-relation queries the response was YES. [2022-12-12 21:34:20,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90895 conditions, 25359 events. 18273/25359 cut-off events. For 13603/13603 co-relation queries the response was YES. Maximal size of possible extension queue 785. Compared 140960 event pairs, 1233 based on Foata normal form. 60/21527 useless extension candidates. Maximal degree in co-relation 90877. Up to 20157 conditions per place. [2022-12-12 21:34:20,769 INFO L137 encePairwiseOnDemand]: 75/79 looper letters, 93 selfloop transitions, 5 changer transitions 0/115 dead transitions. [2022-12-12 21:34:20,770 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 115 transitions, 849 flow [2022-12-12 21:34:20,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:34:20,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:34:20,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 93 transitions. [2022-12-12 21:34:20,771 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3924050632911392 [2022-12-12 21:34:20,772 INFO L295 CegarLoopForPetriNet]: 91 programPoint places, -29 predicate places. [2022-12-12 21:34:20,772 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 115 transitions, 849 flow [2022-12-12 21:34:20,933 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 115 transitions, 849 flow [2022-12-12 21:34:20,934 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 115 transitions, 849 flow [2022-12-12 21:34:20,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2022-12-12 21:34:20,934 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:34:20,935 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:34:20,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 21:34:20,935 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:34:20,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:34:20,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1373658558, now seen corresponding path program 1 times [2022-12-12 21:34:20,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:34:20,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650149808] [2022-12-12 21:34:20,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:34:20,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:34:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:34:22,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:34:22,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:34:22,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650149808] [2022-12-12 21:34:22,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650149808] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:34:22,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:34:22,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 21:34:22,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828830529] [2022-12-12 21:34:22,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:34:22,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 21:34:22,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:34:22,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 21:34:22,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-12 21:34:22,024 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 79 [2022-12-12 21:34:22,024 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 115 transitions, 849 flow. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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) [2022-12-12 21:34:22,024 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:34:22,024 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 79 [2022-12-12 21:34:22,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:34:24,527 INFO L130 PetriNetUnfolder]: 18831/26283 cut-off events. [2022-12-12 21:34:24,527 INFO L131 PetriNetUnfolder]: For 12979/12979 co-relation queries the response was YES. [2022-12-12 21:34:24,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118668 conditions, 26283 events. 18831/26283 cut-off events. For 12979/12979 co-relation queries the response was YES. Maximal size of possible extension queue 784. Compared 146341 event pairs, 1317 based on Foata normal form. 42/22433 useless extension candidates. Maximal degree in co-relation 118647. Up to 23908 conditions per place. [2022-12-12 21:34:24,723 INFO L137 encePairwiseOnDemand]: 67/79 looper letters, 146 selfloop transitions, 30 changer transitions 0/187 dead transitions. [2022-12-12 21:34:24,723 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 187 transitions, 1731 flow [2022-12-12 21:34:24,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 21:34:24,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 21:34:24,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 142 transitions. [2022-12-12 21:34:24,728 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3594936708860759 [2022-12-12 21:34:24,729 INFO L295 CegarLoopForPetriNet]: 91 programPoint places, -25 predicate places. [2022-12-12 21:34:24,730 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 187 transitions, 1731 flow [2022-12-12 21:34:24,863 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 187 transitions, 1731 flow [2022-12-12 21:34:24,863 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 187 transitions, 1731 flow [2022-12-12 21:34:24,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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) [2022-12-12 21:34:24,863 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:34:24,863 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:34:24,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 21:34:24,864 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:34:24,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:34:24,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1370153388, now seen corresponding path program 2 times [2022-12-12 21:34:24,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:34:24,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167951994] [2022-12-12 21:34:24,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:34:24,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:34:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:34:25,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:34:25,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:34:25,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167951994] [2022-12-12 21:34:25,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167951994] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:34:25,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:34:25,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 21:34:25,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574627882] [2022-12-12 21:34:25,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:34:25,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 21:34:25,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:34:25,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 21:34:25,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 21:34:25,294 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 79 [2022-12-12 21:34:25,295 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 187 transitions, 1731 flow. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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) [2022-12-12 21:34:25,295 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:34:25,295 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 79 [2022-12-12 21:34:25,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:34:27,867 INFO L130 PetriNetUnfolder]: 19963/27603 cut-off events. [2022-12-12 21:34:27,868 INFO L131 PetriNetUnfolder]: For 30374/30374 co-relation queries the response was YES. [2022-12-12 21:34:27,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147847 conditions, 27603 events. 19963/27603 cut-off events. For 30374/30374 co-relation queries the response was YES. Maximal size of possible extension queue 829. Compared 151626 event pairs, 1317 based on Foata normal form. 120/23667 useless extension candidates. Maximal degree in co-relation 147823. Up to 25400 conditions per place. [2022-12-12 21:34:28,088 INFO L137 encePairwiseOnDemand]: 72/79 looper letters, 173 selfloop transitions, 23 changer transitions 0/227 dead transitions. [2022-12-12 21:34:28,088 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 227 transitions, 2528 flow [2022-12-12 21:34:28,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 21:34:28,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 21:34:28,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 125 transitions. [2022-12-12 21:34:28,090 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.39556962025316456 [2022-12-12 21:34:28,090 INFO L295 CegarLoopForPetriNet]: 91 programPoint places, -22 predicate places. [2022-12-12 21:34:28,091 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 227 transitions, 2528 flow [2022-12-12 21:34:28,241 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 227 transitions, 2528 flow [2022-12-12 21:34:28,242 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 227 transitions, 2528 flow [2022-12-12 21:34:28,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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) [2022-12-12 21:34:28,242 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:34:28,242 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:34:28,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 21:34:28,242 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:34:28,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:34:28,243 INFO L85 PathProgramCache]: Analyzing trace with hash -89365970, now seen corresponding path program 1 times [2022-12-12 21:34:28,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:34:28,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386589566] [2022-12-12 21:34:28,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:34:28,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:34:28,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:34:28,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:34:28,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:34:28,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386589566] [2022-12-12 21:34:28,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386589566] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:34:28,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:34:28,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 21:34:28,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268645946] [2022-12-12 21:34:28,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:34:28,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 21:34:28,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:34:28,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 21:34:28,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-12 21:34:28,655 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 79 [2022-12-12 21:34:28,655 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 227 transitions, 2528 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2022-12-12 21:34:28,655 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:34:28,655 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 79 [2022-12-12 21:34:28,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:34:31,727 INFO L130 PetriNetUnfolder]: 21602/29984 cut-off events. [2022-12-12 21:34:31,727 INFO L131 PetriNetUnfolder]: For 33545/33545 co-relation queries the response was YES. [2022-12-12 21:34:31,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189352 conditions, 29984 events. 21602/29984 cut-off events. For 33545/33545 co-relation queries the response was YES. Maximal size of possible extension queue 936. Compared 168229 event pairs, 1788 based on Foata normal form. 150/25761 useless extension candidates. Maximal degree in co-relation 189325. Up to 27583 conditions per place. [2022-12-12 21:34:32,052 INFO L137 encePairwiseOnDemand]: 68/79 looper letters, 242 selfloop transitions, 39 changer transitions 0/292 dead transitions. [2022-12-12 21:34:32,052 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 292 transitions, 3811 flow [2022-12-12 21:34:32,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 21:34:32,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 21:34:32,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 154 transitions. [2022-12-12 21:34:32,054 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.389873417721519 [2022-12-12 21:34:32,054 INFO L295 CegarLoopForPetriNet]: 91 programPoint places, -18 predicate places. [2022-12-12 21:34:32,054 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 292 transitions, 3811 flow [2022-12-12 21:34:32,210 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 292 transitions, 3811 flow [2022-12-12 21:34:32,211 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 292 transitions, 3811 flow [2022-12-12 21:34:32,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2022-12-12 21:34:32,211 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:34:32,211 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:34:32,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 21:34:32,211 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:34:32,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:34:32,212 INFO L85 PathProgramCache]: Analyzing trace with hash -88587560, now seen corresponding path program 2 times [2022-12-12 21:34:32,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:34:32,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745907336] [2022-12-12 21:34:32,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:34:32,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:34:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:34:32,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:34:32,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:34:32,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745907336] [2022-12-12 21:34:32,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745907336] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:34:32,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:34:32,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 21:34:32,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946665554] [2022-12-12 21:34:32,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:34:32,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 21:34:32,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:34:32,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 21:34:32,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-12 21:34:32,525 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 79 [2022-12-12 21:34:32,525 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 292 transitions, 3811 flow. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2022-12-12 21:34:32,526 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:34:32,526 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 79 [2022-12-12 21:34:32,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:34:35,606 INFO L130 PetriNetUnfolder]: 21679/30078 cut-off events. [2022-12-12 21:34:35,606 INFO L131 PetriNetUnfolder]: For 57186/57186 co-relation queries the response was YES. [2022-12-12 21:34:35,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214765 conditions, 30078 events. 21679/30078 cut-off events. For 57186/57186 co-relation queries the response was YES. Maximal size of possible extension queue 945. Compared 168742 event pairs, 1784 based on Foata normal form. 15/25704 useless extension candidates. Maximal degree in co-relation 214735. Up to 27693 conditions per place. [2022-12-12 21:34:35,962 INFO L137 encePairwiseOnDemand]: 72/79 looper letters, 236 selfloop transitions, 43 changer transitions 0/321 dead transitions. [2022-12-12 21:34:35,963 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 321 transitions, 4775 flow [2022-12-12 21:34:35,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 21:34:35,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 21:34:35,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 127 transitions. [2022-12-12 21:34:35,964 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.40189873417721517 [2022-12-12 21:34:35,965 INFO L295 CegarLoopForPetriNet]: 91 programPoint places, -15 predicate places. [2022-12-12 21:34:35,965 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 321 transitions, 4775 flow [2022-12-12 21:34:36,133 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 321 transitions, 4775 flow [2022-12-12 21:34:36,134 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 321 transitions, 4775 flow [2022-12-12 21:34:36,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2022-12-12 21:34:36,134 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:34:36,134 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:34:36,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 21:34:36,134 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:34:36,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:34:36,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1472743640, now seen corresponding path program 1 times [2022-12-12 21:34:36,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:34:36,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558786218] [2022-12-12 21:34:36,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:34:36,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:34:36,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:34:36,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:34:36,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:34:36,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558786218] [2022-12-12 21:34:36,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558786218] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:34:36,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:34:36,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 21:34:36,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688823098] [2022-12-12 21:34:36,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:34:36,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 21:34:36,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:34:36,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 21:34:36,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-12 21:34:36,822 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 79 [2022-12-12 21:34:36,822 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 321 transitions, 4775 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2022-12-12 21:34:36,822 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:34:36,822 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 79 [2022-12-12 21:34:36,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:34:40,007 INFO L130 PetriNetUnfolder]: 21297/29582 cut-off events. [2022-12-12 21:34:40,007 INFO L131 PetriNetUnfolder]: For 57580/57580 co-relation queries the response was YES. [2022-12-12 21:34:40,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239313 conditions, 29582 events. 21297/29582 cut-off events. For 57580/57580 co-relation queries the response was YES. Maximal size of possible extension queue 920. Compared 165917 event pairs, 1694 based on Foata normal form. 114/25381 useless extension candidates. Maximal degree in co-relation 239280. Up to 27197 conditions per place. [2022-12-12 21:34:40,279 INFO L137 encePairwiseOnDemand]: 73/79 looper letters, 287 selfloop transitions, 25 changer transitions 0/323 dead transitions. [2022-12-12 21:34:40,280 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 323 transitions, 5407 flow [2022-12-12 21:34:40,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 21:34:40,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 21:34:40,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 141 transitions. [2022-12-12 21:34:40,281 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3569620253164557 [2022-12-12 21:34:40,282 INFO L295 CegarLoopForPetriNet]: 91 programPoint places, -11 predicate places. [2022-12-12 21:34:40,282 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 323 transitions, 5407 flow [2022-12-12 21:34:40,474 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 323 transitions, 5407 flow [2022-12-12 21:34:40,475 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 323 transitions, 5407 flow [2022-12-12 21:34:40,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2022-12-12 21:34:40,475 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:34:40,475 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:34:40,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 21:34:40,475 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:34:40,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:34:40,476 INFO L85 PathProgramCache]: Analyzing trace with hash 599686018, now seen corresponding path program 1 times [2022-12-12 21:34:40,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:34:40,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549491074] [2022-12-12 21:34:40,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:34:40,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:34:40,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:34:40,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:34:40,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:34:40,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549491074] [2022-12-12 21:34:40,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549491074] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:34:40,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:34:40,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 21:34:40,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859485593] [2022-12-12 21:34:40,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:34:40,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 21:34:40,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:34:40,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 21:34:40,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-12 21:34:40,932 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 79 [2022-12-12 21:34:40,933 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 323 transitions, 5407 flow. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 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) [2022-12-12 21:34:40,933 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:34:40,933 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 79 [2022-12-12 21:34:40,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:34:44,607 INFO L130 PetriNetUnfolder]: 22209/30736 cut-off events. [2022-12-12 21:34:44,607 INFO L131 PetriNetUnfolder]: For 61031/61031 co-relation queries the response was YES. [2022-12-12 21:34:44,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278699 conditions, 30736 events. 22209/30736 cut-off events. For 61031/61031 co-relation queries the response was YES. Maximal size of possible extension queue 958. Compared 172149 event pairs, 1788 based on Foata normal form. 120/26433 useless extension candidates. Maximal degree in co-relation 278663. Up to 28409 conditions per place. [2022-12-12 21:34:44,912 INFO L137 encePairwiseOnDemand]: 66/79 looper letters, 328 selfloop transitions, 75 changer transitions 0/414 dead transitions. [2022-12-12 21:34:44,912 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 414 transitions, 7716 flow [2022-12-12 21:34:44,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-12 21:34:44,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-12 21:34:44,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 232 transitions. [2022-12-12 21:34:44,914 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3670886075949367 [2022-12-12 21:34:44,915 INFO L295 CegarLoopForPetriNet]: 91 programPoint places, -4 predicate places. [2022-12-12 21:34:44,915 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 414 transitions, 7716 flow [2022-12-12 21:34:45,128 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 414 transitions, 7716 flow [2022-12-12 21:34:45,128 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 414 transitions, 7716 flow [2022-12-12 21:34:45,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 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) [2022-12-12 21:34:45,129 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:34:45,129 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:34:45,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-12 21:34:45,129 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:34:45,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:34:45,129 INFO L85 PathProgramCache]: Analyzing trace with hash 679131264, now seen corresponding path program 2 times [2022-12-12 21:34:45,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:34:45,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142099085] [2022-12-12 21:34:45,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:34:45,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:34:45,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:34:45,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:34:45,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:34:45,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142099085] [2022-12-12 21:34:45,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142099085] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:34:45,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:34:45,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 21:34:45,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521238041] [2022-12-12 21:34:45,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:34:45,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 21:34:45,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:34:45,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 21:34:45,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-12-12 21:34:45,993 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 79 [2022-12-12 21:34:45,993 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 414 transitions, 7716 flow. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 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) [2022-12-12 21:34:45,993 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:34:45,993 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 79 [2022-12-12 21:34:45,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:34:50,146 INFO L130 PetriNetUnfolder]: 25261/34848 cut-off events. [2022-12-12 21:34:50,146 INFO L131 PetriNetUnfolder]: For 75365/75365 co-relation queries the response was YES. [2022-12-12 21:34:50,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 349567 conditions, 34848 events. 25261/34848 cut-off events. For 75365/75365 co-relation queries the response was YES. Maximal size of possible extension queue 1103. Compared 197919 event pairs, 1618 based on Foata normal form. 240/30057 useless extension candidates. Maximal degree in co-relation 349528. Up to 32481 conditions per place. [2022-12-12 21:34:50,491 INFO L137 encePairwiseOnDemand]: 71/79 looper letters, 372 selfloop transitions, 65 changer transitions 0/448 dead transitions. [2022-12-12 21:34:50,491 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 448 transitions, 9228 flow [2022-12-12 21:34:50,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 21:34:50,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 21:34:50,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 154 transitions. [2022-12-12 21:34:50,492 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.389873417721519 [2022-12-12 21:34:50,493 INFO L295 CegarLoopForPetriNet]: 91 programPoint places, 0 predicate places. [2022-12-12 21:34:50,493 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 448 transitions, 9228 flow [2022-12-12 21:34:50,749 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 448 transitions, 9228 flow [2022-12-12 21:34:50,750 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 448 transitions, 9228 flow [2022-12-12 21:34:50,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 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) [2022-12-12 21:34:50,750 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:34:50,750 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:34:50,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-12 21:34:50,750 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:34:50,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:34:50,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1825539089, now seen corresponding path program 1 times [2022-12-12 21:34:50,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:34:50,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682663632] [2022-12-12 21:34:50,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:34:50,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:34:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:34:50,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:34:50,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:34:50,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682663632] [2022-12-12 21:34:50,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682663632] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:34:50,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:34:50,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:34:50,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273005144] [2022-12-12 21:34:50,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:34:50,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:34:50,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:34:50,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:34:50,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:34:50,879 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 79 [2022-12-12 21:34:50,879 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 448 transitions, 9228 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2022-12-12 21:34:50,879 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:34:50,879 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 79 [2022-12-12 21:34:50,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:34:57,100 INFO L130 PetriNetUnfolder]: 38012/51407 cut-off events. [2022-12-12 21:34:57,101 INFO L131 PetriNetUnfolder]: For 392746/399635 co-relation queries the response was YES. [2022-12-12 21:34:57,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 530218 conditions, 51407 events. 38012/51407 cut-off events. For 392746/399635 co-relation queries the response was YES. Maximal size of possible extension queue 1789. Compared 298248 event pairs, 3729 based on Foata normal form. 658/44769 useless extension candidates. Maximal degree in co-relation 530176. Up to 45531 conditions per place. [2022-12-12 21:34:57,612 INFO L137 encePairwiseOnDemand]: 65/79 looper letters, 407 selfloop transitions, 73 changer transitions 0/554 dead transitions. [2022-12-12 21:34:57,612 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 554 transitions, 12510 flow [2022-12-12 21:34:57,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:34:57,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:34:57,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 94 transitions. [2022-12-12 21:34:57,614 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.39662447257383965 [2022-12-12 21:34:57,614 INFO L295 CegarLoopForPetriNet]: 91 programPoint places, 2 predicate places. [2022-12-12 21:34:57,614 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 554 transitions, 12510 flow [2022-12-12 21:34:58,149 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 554 transitions, 12510 flow [2022-12-12 21:34:58,149 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 554 transitions, 12510 flow [2022-12-12 21:34:58,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2022-12-12 21:34:58,150 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:34:58,150 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:34:58,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-12 21:34:58,150 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:34:58,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:34:58,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1749896284, now seen corresponding path program 1 times [2022-12-12 21:34:58,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:34:58,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368055556] [2022-12-12 21:34:58,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:34:58,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:34:58,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:34:58,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:34:58,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:34:58,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368055556] [2022-12-12 21:34:58,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368055556] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:34:58,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:34:58,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 21:34:58,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510057932] [2022-12-12 21:34:58,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:34:58,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:34:58,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:34:58,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:34:58,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:34:58,291 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 79 [2022-12-12 21:34:58,291 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 554 transitions, 12510 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2022-12-12 21:34:58,292 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:34:58,292 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 79 [2022-12-12 21:34:58,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:35:03,034 INFO L130 PetriNetUnfolder]: 23420/33389 cut-off events. [2022-12-12 21:35:03,034 INFO L131 PetriNetUnfolder]: For 288774/294941 co-relation queries the response was YES. [2022-12-12 21:35:03,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 372126 conditions, 33389 events. 23420/33389 cut-off events. For 288774/294941 co-relation queries the response was YES. Maximal size of possible extension queue 1253. Compared 205175 event pairs, 1840 based on Foata normal form. 2898/31796 useless extension candidates. Maximal degree in co-relation 372081. Up to 29289 conditions per place. [2022-12-12 21:35:03,381 INFO L137 encePairwiseOnDemand]: 65/79 looper letters, 398 selfloop transitions, 137 changer transitions 0/605 dead transitions. [2022-12-12 21:35:03,381 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 605 transitions, 14779 flow [2022-12-12 21:35:03,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 21:35:03,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 21:35:03,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2022-12-12 21:35:03,383 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.41139240506329117 [2022-12-12 21:35:03,383 INFO L295 CegarLoopForPetriNet]: 91 programPoint places, 5 predicate places. [2022-12-12 21:35:03,383 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 605 transitions, 14779 flow [2022-12-12 21:35:03,633 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 605 transitions, 14779 flow [2022-12-12 21:35:03,633 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 605 transitions, 14779 flow [2022-12-12 21:35:03,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2022-12-12 21:35:03,633 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:35:03,633 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:35:03,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-12 21:35:03,634 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:35:03,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:35:03,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1432928282, now seen corresponding path program 1 times [2022-12-12 21:35:03,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:35:03,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648048023] [2022-12-12 21:35:03,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:35:03,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:35:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:35:04,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:35:04,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:35:04,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648048023] [2022-12-12 21:35:04,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648048023] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:35:04,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:35:04,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 21:35:04,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543266399] [2022-12-12 21:35:04,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:35:04,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 21:35:04,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:35:04,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 21:35:04,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-12 21:35:04,043 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 79 [2022-12-12 21:35:04,044 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 605 transitions, 14779 flow. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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) [2022-12-12 21:35:04,044 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:35:04,044 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 79 [2022-12-12 21:35:04,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:35:07,072 INFO L130 PetriNetUnfolder]: 13858/20484 cut-off events. [2022-12-12 21:35:07,072 INFO L131 PetriNetUnfolder]: For 222623/228097 co-relation queries the response was YES. [2022-12-12 21:35:07,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245011 conditions, 20484 events. 13858/20484 cut-off events. For 222623/228097 co-relation queries the response was YES. Maximal size of possible extension queue 643. Compared 124336 event pairs, 547 based on Foata normal form. 2996/20580 useless extension candidates. Maximal degree in co-relation 244963. Up to 17720 conditions per place. [2022-12-12 21:35:07,287 INFO L137 encePairwiseOnDemand]: 65/79 looper letters, 368 selfloop transitions, 173 changer transitions 0/610 dead transitions. [2022-12-12 21:35:07,287 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 610 transitions, 15926 flow [2022-12-12 21:35:07,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 21:35:07,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 21:35:07,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 164 transitions. [2022-12-12 21:35:07,288 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4151898734177215 [2022-12-12 21:35:07,289 INFO L295 CegarLoopForPetriNet]: 91 programPoint places, 9 predicate places. [2022-12-12 21:35:07,289 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 610 transitions, 15926 flow [2022-12-12 21:35:07,457 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 610 transitions, 15926 flow [2022-12-12 21:35:07,457 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 610 transitions, 15926 flow [2022-12-12 21:35:07,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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) [2022-12-12 21:35:07,458 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:35:07,458 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:35:07,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-12 21:35:07,458 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:35:07,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:35:07,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1687028349, now seen corresponding path program 1 times [2022-12-12 21:35:07,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:35:07,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397463114] [2022-12-12 21:35:07,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:35:07,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:35:07,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:35:07,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:35:07,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:35:07,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397463114] [2022-12-12 21:35:07,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397463114] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:35:07,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:35:07,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 21:35:07,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153148032] [2022-12-12 21:35:07,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:35:07,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 21:35:07,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:35:07,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 21:35:07,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 21:35:07,893 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 79 [2022-12-12 21:35:07,893 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 610 transitions, 15926 flow. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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) [2022-12-12 21:35:07,893 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:35:07,893 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 79 [2022-12-12 21:35:07,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:35:12,527 INFO L130 PetriNetUnfolder]: 20077/29911 cut-off events. [2022-12-12 21:35:12,528 INFO L131 PetriNetUnfolder]: For 278808/284197 co-relation queries the response was YES. [2022-12-12 21:35:12,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383044 conditions, 29911 events. 20077/29911 cut-off events. For 278808/284197 co-relation queries the response was YES. Maximal size of possible extension queue 962. Compared 196544 event pairs, 930 based on Foata normal form. 666/26018 useless extension candidates. Maximal degree in co-relation 382993. Up to 25720 conditions per place. [2022-12-12 21:35:12,940 INFO L137 encePairwiseOnDemand]: 71/79 looper letters, 853 selfloop transitions, 44 changer transitions 140/1060 dead transitions. [2022-12-12 21:35:12,941 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 1060 transitions, 30023 flow [2022-12-12 21:35:12,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 21:35:12,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 21:35:12,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 166 transitions. [2022-12-12 21:35:12,942 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.350210970464135 [2022-12-12 21:35:12,943 INFO L295 CegarLoopForPetriNet]: 91 programPoint places, 14 predicate places. [2022-12-12 21:35:12,943 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 1060 transitions, 30023 flow [2022-12-12 21:35:13,126 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 920 transitions, 25837 flow [2022-12-12 21:35:13,127 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 920 transitions, 25837 flow [2022-12-12 21:35:13,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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) [2022-12-12 21:35:13,127 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:35:13,127 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:35:13,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-12 21:35:13,127 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:35:13,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:35:13,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1516712368, now seen corresponding path program 1 times [2022-12-12 21:35:13,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:35:13,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696836535] [2022-12-12 21:35:13,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:35:13,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:35:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:35:13,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:35:13,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:35:13,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696836535] [2022-12-12 21:35:13,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696836535] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:35:13,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:35:13,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 21:35:13,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914913092] [2022-12-12 21:35:13,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:35:13,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 21:35:13,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:35:13,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 21:35:13,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-12 21:35:13,957 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 79 [2022-12-12 21:35:13,957 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 920 transitions, 25837 flow. Second operand has 8 states, 8 states have (on average 17.25) internal successors, (138), 8 states have internal predecessors, (138), 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) [2022-12-12 21:35:13,957 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:35:13,957 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 79 [2022-12-12 21:35:13,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand