/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix037_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 14:35:39,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 14:35:39,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 14:35:39,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 14:35:39,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 14:35:39,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 14:35:39,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 14:35:39,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 14:35:39,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 14:35:39,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 14:35:39,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 14:35:39,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 14:35:39,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 14:35:39,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 14:35:39,300 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 14:35:39,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 14:35:39,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 14:35:39,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 14:35:39,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 14:35:39,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 14:35:39,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 14:35:39,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 14:35:39,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 14:35:39,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 14:35:39,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 14:35:39,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 14:35:39,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 14:35:39,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 14:35:39,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 14:35:39,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 14:35:39,317 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 14:35:39,318 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 14:35:39,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 14:35:39,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 14:35:39,320 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 14:35:39,320 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 14:35:39,320 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 14:35:39,321 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 14:35:39,321 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 14:35:39,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 14:35:39,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 14:35:39,322 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 14:35:39,349 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 14:35:39,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 14:35:39,350 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 14:35:39,350 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 14:35:39,351 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 14:35:39,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 14:35:39,352 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 14:35:39,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 14:35:39,352 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 14:35:39,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 14:35:39,353 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 14:35:39,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 14:35:39,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 14:35:39,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 14:35:39,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 14:35:39,353 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 14:35:39,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 14:35:39,353 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 14:35:39,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 14:35:39,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 14:35:39,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 14:35:39,354 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 14:35:39,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 14:35:39,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 14:35:39,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 14:35:39,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 14:35:39,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 14:35:39,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 14:35:39,355 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 14:35:39,355 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 14:35:39,355 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-12 14:35:39,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 14:35:39,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 14:35:39,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 14:35:39,633 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 14:35:39,634 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 14:35:39,635 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix037_power.oepc_pso.oepc_rmo.oepc.i [2022-12-12 14:35:40,754 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 14:35:41,075 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 14:35:41,075 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix037_power.oepc_pso.oepc_rmo.oepc.i [2022-12-12 14:35:41,094 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93697503b/869ea1a1e689477d91b231e5c873380f/FLAGf22835c67 [2022-12-12 14:35:41,109 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93697503b/869ea1a1e689477d91b231e5c873380f [2022-12-12 14:35:41,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 14:35:41,114 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 14:35:41,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 14:35:41,114 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 14:35:41,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 14:35:41,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 02:35:41" (1/1) ... [2022-12-12 14:35:41,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7222588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:35:41, skipping insertion in model container [2022-12-12 14:35:41,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 02:35:41" (1/1) ... [2022-12-12 14:35:41,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 14:35:41,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 14:35:41,299 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/mix037_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-12 14:35:41,437 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,445 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,447 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,448 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,448 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,448 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,448 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,455 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,459 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,460 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,460 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,460 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,460 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,464 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,466 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,483 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,483 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,484 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,485 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,485 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,489 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,490 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,490 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,493 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,494 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,496 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,496 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 14:35:41,505 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 14:35:41,515 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/mix037_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-12 14:35:41,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,550 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,561 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,561 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,562 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,562 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,562 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,567 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,567 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,567 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,567 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,567 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,567 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,568 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,570 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,570 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,575 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,576 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,576 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,582 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,582 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,583 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:35:41,588 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:35:41,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 14:35:41,623 INFO L208 MainTranslator]: Completed translation [2022-12-12 14:35:41,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:35:41 WrapperNode [2022-12-12 14:35:41,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 14:35:41,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 14:35:41,626 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 14:35:41,626 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 14:35:41,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:35:41" (1/1) ... [2022-12-12 14:35:41,657 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:35:41" (1/1) ... [2022-12-12 14:35:41,682 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 146 [2022-12-12 14:35:41,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 14:35:41,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 14:35:41,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 14:35:41,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 14:35:41,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:35:41" (1/1) ... [2022-12-12 14:35:41,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:35:41" (1/1) ... [2022-12-12 14:35:41,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:35:41" (1/1) ... [2022-12-12 14:35:41,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:35:41" (1/1) ... [2022-12-12 14:35:41,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:35:41" (1/1) ... [2022-12-12 14:35:41,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:35:41" (1/1) ... [2022-12-12 14:35:41,719 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:35:41" (1/1) ... [2022-12-12 14:35:41,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:35:41" (1/1) ... [2022-12-12 14:35:41,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 14:35:41,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 14:35:41,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 14:35:41,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 14:35:41,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:35:41" (1/1) ... [2022-12-12 14:35:41,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 14:35:41,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 14:35:41,758 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 14:35:41,792 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 14:35:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 14:35:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 14:35:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 14:35:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 14:35:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 14:35:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 14:35:41,814 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 14:35:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 14:35:41,814 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 14:35:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-12 14:35:41,814 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-12 14:35:41,815 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-12 14:35:41,815 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-12 14:35:41,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 14:35:41,815 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 14:35:41,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 14:35:41,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 14:35:41,816 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 14:35:41,963 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 14:35:41,974 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 14:35:42,309 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 14:35:42,431 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 14:35:42,431 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 14:35:42,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 02:35:42 BoogieIcfgContainer [2022-12-12 14:35:42,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 14:35:42,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 14:35:42,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 14:35:42,437 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 14:35:42,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 02:35:41" (1/3) ... [2022-12-12 14:35:42,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@339cfa94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 02:35:42, skipping insertion in model container [2022-12-12 14:35:42,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:35:41" (2/3) ... [2022-12-12 14:35:42,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@339cfa94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 02:35:42, skipping insertion in model container [2022-12-12 14:35:42,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 02:35:42" (3/3) ... [2022-12-12 14:35:42,441 INFO L112 eAbstractionObserver]: Analyzing ICFG mix037_power.oepc_pso.oepc_rmo.oepc.i [2022-12-12 14:35:42,453 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 14:35:42,453 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-12 14:35:42,454 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 14:35:42,496 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 14:35:42,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 133 transitions, 286 flow [2022-12-12 14:35:42,580 INFO L130 PetriNetUnfolder]: 2/129 cut-off events. [2022-12-12 14:35:42,580 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 14:35:42,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 129 events. 2/129 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 75 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2022-12-12 14:35:42,586 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 133 transitions, 286 flow [2022-12-12 14:35:42,593 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 129 transitions, 270 flow [2022-12-12 14:35:42,598 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 14:35:42,614 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 129 transitions, 270 flow [2022-12-12 14:35:42,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 129 transitions, 270 flow [2022-12-12 14:35:42,656 INFO L130 PetriNetUnfolder]: 2/129 cut-off events. [2022-12-12 14:35:42,656 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 14:35:42,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 129 events. 2/129 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 75 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2022-12-12 14:35:42,661 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 140 places, 129 transitions, 270 flow [2022-12-12 14:35:42,662 INFO L226 LiptonReduction]: Number of co-enabled transitions 3270 [2022-12-12 14:35:48,002 INFO L241 LiptonReduction]: Total number of compositions: 101 [2022-12-12 14:35:48,019 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 14:35:48,023 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;@33c4f326, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 14:35:48,024 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-12 14:35:48,026 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2022-12-12 14:35:48,026 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 14:35:48,026 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:35:48,026 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-12 14:35:48,026 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:35:48,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:35:48,029 INFO L85 PathProgramCache]: Analyzing trace with hash 598554, now seen corresponding path program 1 times [2022-12-12 14:35:48,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:35:48,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937778378] [2022-12-12 14:35:48,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:35:48,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:35:48,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:35:48,342 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 14:35:48,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:35:48,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937778378] [2022-12-12 14:35:48,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937778378] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:35:48,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:35:48,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 14:35:48,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83103123] [2022-12-12 14:35:48,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:35:48,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 14:35:48,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:35:48,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 14:35:48,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 14:35:48,372 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 85 [2022-12-12 14:35:48,373 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 85 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 14:35:48,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:35:48,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 85 [2022-12-12 14:35:48,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:35:56,290 INFO L130 PetriNetUnfolder]: 78140/109416 cut-off events. [2022-12-12 14:35:56,290 INFO L131 PetriNetUnfolder]: For 148/148 co-relation queries the response was YES. [2022-12-12 14:35:56,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212430 conditions, 109416 events. 78140/109416 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 4919. Compared 794710 event pairs, 41427 based on Foata normal form. 0/67090 useless extension candidates. Maximal degree in co-relation 212418. Up to 86085 conditions per place. [2022-12-12 14:35:56,656 INFO L137 encePairwiseOnDemand]: 79/85 looper letters, 50 selfloop transitions, 2 changer transitions 71/139 dead transitions. [2022-12-12 14:35:56,656 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 139 transitions, 543 flow [2022-12-12 14:35:56,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 14:35:56,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 14:35:56,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 180 transitions. [2022-12-12 14:35:56,665 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7058823529411765 [2022-12-12 14:35:56,666 INFO L175 Difference]: Start difference. First operand has 97 places, 85 transitions, 182 flow. Second operand 3 states and 180 transitions. [2022-12-12 14:35:56,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 139 transitions, 543 flow [2022-12-12 14:35:56,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 139 transitions, 536 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-12 14:35:56,672 INFO L231 Difference]: Finished difference. Result has 92 places, 45 transitions, 102 flow [2022-12-12 14:35:56,673 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=92, PETRI_TRANSITIONS=45} [2022-12-12 14:35:56,676 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, -5 predicate places. [2022-12-12 14:35:56,676 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 45 transitions, 102 flow [2022-12-12 14:35:56,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 14:35:56,677 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:35:56,677 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:35:56,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 14:35:56,677 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:35:56,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:35:56,683 INFO L85 PathProgramCache]: Analyzing trace with hash 24868128, now seen corresponding path program 1 times [2022-12-12 14:35:56,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:35:56,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849004500] [2022-12-12 14:35:56,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:35:56,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:35:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:35:56,899 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 14:35:56,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:35:56,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849004500] [2022-12-12 14:35:56,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849004500] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:35:56,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:35:56,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 14:35:56,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306285647] [2022-12-12 14:35:56,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:35:56,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 14:35:56,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:35:56,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 14:35:56,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 14:35:56,902 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 85 [2022-12-12 14:35:56,902 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 14:35:56,902 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:35:56,902 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 85 [2022-12-12 14:35:56,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:36:00,900 INFO L130 PetriNetUnfolder]: 45473/63165 cut-off events. [2022-12-12 14:36:00,900 INFO L131 PetriNetUnfolder]: For 1519/1519 co-relation queries the response was YES. [2022-12-12 14:36:01,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126065 conditions, 63165 events. 45473/63165 cut-off events. For 1519/1519 co-relation queries the response was YES. Maximal size of possible extension queue 2034. Compared 404435 event pairs, 16609 based on Foata normal form. 0/49857 useless extension candidates. Maximal degree in co-relation 126055. Up to 39869 conditions per place. [2022-12-12 14:36:01,216 INFO L137 encePairwiseOnDemand]: 77/85 looper letters, 54 selfloop transitions, 7 changer transitions 2/74 dead transitions. [2022-12-12 14:36:01,216 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 74 transitions, 292 flow [2022-12-12 14:36:01,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 14:36:01,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 14:36:01,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2022-12-12 14:36:01,218 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.39215686274509803 [2022-12-12 14:36:01,218 INFO L175 Difference]: Start difference. First operand has 92 places, 45 transitions, 102 flow. Second operand 3 states and 100 transitions. [2022-12-12 14:36:01,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 74 transitions, 292 flow [2022-12-12 14:36:01,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 74 transitions, 286 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-12 14:36:01,219 INFO L231 Difference]: Finished difference. Result has 58 places, 50 transitions, 150 flow [2022-12-12 14:36:01,220 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=58, PETRI_TRANSITIONS=50} [2022-12-12 14:36:01,220 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, -39 predicate places. [2022-12-12 14:36:01,220 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 50 transitions, 150 flow [2022-12-12 14:36:01,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 14:36:01,220 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:36:01,221 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:36:01,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 14:36:01,221 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:36:01,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:36:01,221 INFO L85 PathProgramCache]: Analyzing trace with hash 770912736, now seen corresponding path program 1 times [2022-12-12 14:36:01,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:36:01,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872593148] [2022-12-12 14:36:01,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:36:01,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:36:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:36:01,346 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 14:36:01,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:36:01,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872593148] [2022-12-12 14:36:01,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872593148] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:36:01,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:36:01,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 14:36:01,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660402462] [2022-12-12 14:36:01,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:36:01,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 14:36:01,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:36:01,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 14:36:01,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 14:36:01,358 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 85 [2022-12-12 14:36:01,360 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 50 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 14:36:01,360 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:36:01,360 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 85 [2022-12-12 14:36:01,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:36:04,191 INFO L130 PetriNetUnfolder]: 32831/46189 cut-off events. [2022-12-12 14:36:04,191 INFO L131 PetriNetUnfolder]: For 14376/14376 co-relation queries the response was YES. [2022-12-12 14:36:04,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105681 conditions, 46189 events. 32831/46189 cut-off events. For 14376/14376 co-relation queries the response was YES. Maximal size of possible extension queue 1445. Compared 282767 event pairs, 10707 based on Foata normal form. 612/38331 useless extension candidates. Maximal degree in co-relation 105669. Up to 19849 conditions per place. [2022-12-12 14:36:04,449 INFO L137 encePairwiseOnDemand]: 77/85 looper letters, 65 selfloop transitions, 8 changer transitions 1/85 dead transitions. [2022-12-12 14:36:04,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 85 transitions, 390 flow [2022-12-12 14:36:04,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 14:36:04,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 14:36:04,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 118 transitions. [2022-12-12 14:36:04,453 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.34705882352941175 [2022-12-12 14:36:04,453 INFO L175 Difference]: Start difference. First operand has 58 places, 50 transitions, 150 flow. Second operand 4 states and 118 transitions. [2022-12-12 14:36:04,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 85 transitions, 390 flow [2022-12-12 14:36:04,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 85 transitions, 368 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-12 14:36:04,525 INFO L231 Difference]: Finished difference. Result has 61 places, 53 transitions, 192 flow [2022-12-12 14:36:04,525 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=192, PETRI_PLACES=61, PETRI_TRANSITIONS=53} [2022-12-12 14:36:04,526 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, -36 predicate places. [2022-12-12 14:36:04,526 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 53 transitions, 192 flow [2022-12-12 14:36:04,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 14:36:04,526 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:36:04,526 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:36:04,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 14:36:04,527 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:36:04,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:36:04,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1868976825, now seen corresponding path program 1 times [2022-12-12 14:36:04,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:36:04,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692780537] [2022-12-12 14:36:04,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:36:04,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:36:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:36:04,663 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 14:36:04,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:36:04,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692780537] [2022-12-12 14:36:04,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692780537] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:36:04,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:36:04,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 14:36:04,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279673409] [2022-12-12 14:36:04,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:36:04,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 14:36:04,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:36:04,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 14:36:04,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 14:36:04,666 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 85 [2022-12-12 14:36:04,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 53 transitions, 192 flow. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 14:36:04,667 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:36:04,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 85 [2022-12-12 14:36:04,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:36:07,247 INFO L130 PetriNetUnfolder]: 29025/41047 cut-off events. [2022-12-12 14:36:07,248 INFO L131 PetriNetUnfolder]: For 23382/23382 co-relation queries the response was YES. [2022-12-12 14:36:07,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99252 conditions, 41047 events. 29025/41047 cut-off events. For 23382/23382 co-relation queries the response was YES. Maximal size of possible extension queue 1323. Compared 257785 event pairs, 7611 based on Foata normal form. 60/34359 useless extension candidates. Maximal degree in co-relation 99237. Up to 25133 conditions per place. [2022-12-12 14:36:07,512 INFO L137 encePairwiseOnDemand]: 77/85 looper letters, 72 selfloop transitions, 16 changer transitions 0/99 dead transitions. [2022-12-12 14:36:07,512 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 99 transitions, 506 flow [2022-12-12 14:36:07,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 14:36:07,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 14:36:07,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 128 transitions. [2022-12-12 14:36:07,514 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3764705882352941 [2022-12-12 14:36:07,514 INFO L175 Difference]: Start difference. First operand has 61 places, 53 transitions, 192 flow. Second operand 4 states and 128 transitions. [2022-12-12 14:36:07,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 99 transitions, 506 flow [2022-12-12 14:36:07,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 99 transitions, 501 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-12 14:36:07,536 INFO L231 Difference]: Finished difference. Result has 64 places, 59 transitions, 285 flow [2022-12-12 14:36:07,536 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=285, PETRI_PLACES=64, PETRI_TRANSITIONS=59} [2022-12-12 14:36:07,537 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, -33 predicate places. [2022-12-12 14:36:07,537 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 59 transitions, 285 flow [2022-12-12 14:36:07,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 14:36:07,537 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:36:07,537 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:36:07,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 14:36:07,538 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:36:07,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:36:07,538 INFO L85 PathProgramCache]: Analyzing trace with hash -2103564599, now seen corresponding path program 1 times [2022-12-12 14:36:07,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:36:07,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548034534] [2022-12-12 14:36:07,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:36:07,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:36:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:36:07,666 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 14:36:07,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:36:07,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548034534] [2022-12-12 14:36:07,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548034534] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:36:07,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:36:07,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 14:36:07,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43319457] [2022-12-12 14:36:07,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:36:07,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 14:36:07,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:36:07,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 14:36:07,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 14:36:07,668 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 85 [2022-12-12 14:36:07,669 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 59 transitions, 285 flow. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 14:36:07,669 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:36:07,669 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 85 [2022-12-12 14:36:07,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:36:11,518 INFO L130 PetriNetUnfolder]: 40623/56410 cut-off events. [2022-12-12 14:36:11,518 INFO L131 PetriNetUnfolder]: For 32831/34230 co-relation queries the response was YES. [2022-12-12 14:36:11,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133956 conditions, 56410 events. 40623/56410 cut-off events. For 32831/34230 co-relation queries the response was YES. Maximal size of possible extension queue 2281. Compared 360878 event pairs, 12480 based on Foata normal form. 644/38826 useless extension candidates. Maximal degree in co-relation 133938. Up to 54304 conditions per place. [2022-12-12 14:36:11,843 INFO L137 encePairwiseOnDemand]: 71/85 looper letters, 55 selfloop transitions, 13 changer transitions 0/90 dead transitions. [2022-12-12 14:36:11,843 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 90 transitions, 525 flow [2022-12-12 14:36:11,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 14:36:11,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 14:36:11,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2022-12-12 14:36:11,844 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.38823529411764707 [2022-12-12 14:36:11,844 INFO L175 Difference]: Start difference. First operand has 64 places, 59 transitions, 285 flow. Second operand 3 states and 99 transitions. [2022-12-12 14:36:11,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 90 transitions, 525 flow [2022-12-12 14:36:11,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 90 transitions, 525 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-12 14:36:11,877 INFO L231 Difference]: Finished difference. Result has 67 places, 71 transitions, 374 flow [2022-12-12 14:36:11,877 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=67, PETRI_TRANSITIONS=71} [2022-12-12 14:36:11,879 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, -30 predicate places. [2022-12-12 14:36:11,879 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 71 transitions, 374 flow [2022-12-12 14:36:11,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 14:36:11,879 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:36:11,879 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:36:11,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 14:36:11,880 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:36:11,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:36:11,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1527981947, now seen corresponding path program 1 times [2022-12-12 14:36:11,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:36:11,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061375752] [2022-12-12 14:36:11,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:36:11,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:36:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:36:12,035 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 14:36:12,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:36:12,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061375752] [2022-12-12 14:36:12,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061375752] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:36:12,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:36:12,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 14:36:12,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699956287] [2022-12-12 14:36:12,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:36:12,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 14:36:12,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:36:12,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 14:36:12,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 14:36:12,037 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 85 [2022-12-12 14:36:12,037 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 71 transitions, 374 flow. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 14:36:12,037 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:36:12,037 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 85 [2022-12-12 14:36:12,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:36:14,718 INFO L130 PetriNetUnfolder]: 26124/38464 cut-off events. [2022-12-12 14:36:14,719 INFO L131 PetriNetUnfolder]: For 22979/23817 co-relation queries the response was YES. [2022-12-12 14:36:14,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113328 conditions, 38464 events. 26124/38464 cut-off events. For 22979/23817 co-relation queries the response was YES. Maximal size of possible extension queue 1743. Compared 265069 event pairs, 4314 based on Foata normal form. 1396/27719 useless extension candidates. Maximal degree in co-relation 113307. Up to 31717 conditions per place. [2022-12-12 14:36:14,981 INFO L137 encePairwiseOnDemand]: 71/85 looper letters, 72 selfloop transitions, 25 changer transitions 0/119 dead transitions. [2022-12-12 14:36:14,981 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 119 transitions, 770 flow [2022-12-12 14:36:14,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 14:36:14,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 14:36:14,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 137 transitions. [2022-12-12 14:36:14,982 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.40294117647058825 [2022-12-12 14:36:14,982 INFO L175 Difference]: Start difference. First operand has 67 places, 71 transitions, 374 flow. Second operand 4 states and 137 transitions. [2022-12-12 14:36:14,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 119 transitions, 770 flow [2022-12-12 14:36:15,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 119 transitions, 757 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-12 14:36:15,019 INFO L231 Difference]: Finished difference. Result has 70 places, 83 transitions, 509 flow [2022-12-12 14:36:15,019 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=509, PETRI_PLACES=70, PETRI_TRANSITIONS=83} [2022-12-12 14:36:15,019 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, -27 predicate places. [2022-12-12 14:36:15,019 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 83 transitions, 509 flow [2022-12-12 14:36:15,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 14:36:15,020 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:36:15,020 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 14:36:15,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 14:36:15,020 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:36:15,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:36:15,020 INFO L85 PathProgramCache]: Analyzing trace with hash 214859814, now seen corresponding path program 1 times [2022-12-12 14:36:15,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:36:15,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951215914] [2022-12-12 14:36:15,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:36:15,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:36:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:36:15,202 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 14:36:15,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:36:15,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951215914] [2022-12-12 14:36:15,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951215914] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:36:15,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:36:15,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 14:36:15,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310208873] [2022-12-12 14:36:15,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:36:15,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 14:36:15,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:36:15,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 14:36:15,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 14:36:15,204 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 85 [2022-12-12 14:36:15,204 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 83 transitions, 509 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 14:36:15,204 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:36:15,204 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 85 [2022-12-12 14:36:15,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:36:19,167 INFO L130 PetriNetUnfolder]: 32177/49000 cut-off events. [2022-12-12 14:36:19,167 INFO L131 PetriNetUnfolder]: For 50464/55261 co-relation queries the response was YES. [2022-12-12 14:36:19,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168568 conditions, 49000 events. 32177/49000 cut-off events. For 50464/55261 co-relation queries the response was YES. Maximal size of possible extension queue 2516. Compared 376795 event pairs, 10730 based on Foata normal form. 2236/41567 useless extension candidates. Maximal degree in co-relation 168545. Up to 27260 conditions per place. [2022-12-12 14:36:19,483 INFO L137 encePairwiseOnDemand]: 82/85 looper letters, 85 selfloop transitions, 8 changer transitions 0/122 dead transitions. [2022-12-12 14:36:19,483 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 122 transitions, 897 flow [2022-12-12 14:36:19,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 14:36:19,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 14:36:19,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2022-12-12 14:36:19,485 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.38823529411764707 [2022-12-12 14:36:19,485 INFO L175 Difference]: Start difference. First operand has 70 places, 83 transitions, 509 flow. Second operand 3 states and 99 transitions. [2022-12-12 14:36:19,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 122 transitions, 897 flow [2022-12-12 14:36:19,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 122 transitions, 815 flow, removed 20 selfloop flow, removed 2 redundant places. [2022-12-12 14:36:19,563 INFO L231 Difference]: Finished difference. Result has 71 places, 83 transitions, 485 flow [2022-12-12 14:36:19,563 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=459, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=485, PETRI_PLACES=71, PETRI_TRANSITIONS=83} [2022-12-12 14:36:19,564 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, -26 predicate places. [2022-12-12 14:36:19,564 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 83 transitions, 485 flow [2022-12-12 14:36:19,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 14:36:19,564 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:36:19,564 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] [2022-12-12 14:36:19,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 14:36:19,564 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:36:19,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:36:19,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1088882420, now seen corresponding path program 1 times [2022-12-12 14:36:19,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:36:19,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255698856] [2022-12-12 14:36:19,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:36:19,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:36:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:36:19,803 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 14:36:19,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:36:19,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255698856] [2022-12-12 14:36:19,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255698856] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:36:19,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:36:19,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 14:36:19,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662278103] [2022-12-12 14:36:19,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:36:19,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 14:36:19,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:36:19,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 14:36:19,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 14:36:19,805 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 85 [2022-12-12 14:36:19,805 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 83 transitions, 485 flow. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 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 14:36:19,805 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:36:19,805 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 85 [2022-12-12 14:36:19,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:36:25,514 INFO L130 PetriNetUnfolder]: 50570/76372 cut-off events. [2022-12-12 14:36:25,514 INFO L131 PetriNetUnfolder]: For 78851/85382 co-relation queries the response was YES. [2022-12-12 14:36:25,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 247916 conditions, 76372 events. 50570/76372 cut-off events. For 78851/85382 co-relation queries the response was YES. Maximal size of possible extension queue 3960. Compared 620567 event pairs, 8521 based on Foata normal form. 2852/63806 useless extension candidates. Maximal degree in co-relation 247893. Up to 41293 conditions per place. [2022-12-12 14:36:25,956 INFO L137 encePairwiseOnDemand]: 82/85 looper letters, 122 selfloop transitions, 4 changer transitions 0/157 dead transitions. [2022-12-12 14:36:25,956 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 157 transitions, 1126 flow [2022-12-12 14:36:25,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 14:36:25,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 14:36:25,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 128 transitions. [2022-12-12 14:36:25,957 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3764705882352941 [2022-12-12 14:36:25,958 INFO L175 Difference]: Start difference. First operand has 71 places, 83 transitions, 485 flow. Second operand 4 states and 128 transitions. [2022-12-12 14:36:25,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 157 transitions, 1126 flow [2022-12-12 14:36:26,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 157 transitions, 1111 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-12-12 14:36:26,028 INFO L231 Difference]: Finished difference. Result has 75 places, 86 transitions, 522 flow [2022-12-12 14:36:26,028 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=522, PETRI_PLACES=75, PETRI_TRANSITIONS=86} [2022-12-12 14:36:26,030 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, -22 predicate places. [2022-12-12 14:36:26,031 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 86 transitions, 522 flow [2022-12-12 14:36:26,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 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 14:36:26,031 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:36:26,032 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 14:36:26,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 14:36:26,033 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:36:26,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:36:26,034 INFO L85 PathProgramCache]: Analyzing trace with hash 47503461, now seen corresponding path program 1 times [2022-12-12 14:36:26,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:36:26,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252815039] [2022-12-12 14:36:26,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:36:26,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:36:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:36:26,218 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 14:36:26,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:36:26,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252815039] [2022-12-12 14:36:26,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252815039] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:36:26,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:36:26,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 14:36:26,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781169900] [2022-12-12 14:36:26,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:36:26,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 14:36:26,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:36:26,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 14:36:26,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-12 14:36:26,223 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 85 [2022-12-12 14:36:26,223 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 86 transitions, 522 flow. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 14:36:26,223 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:36:26,223 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 85 [2022-12-12 14:36:26,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:36:29,963 INFO L130 PetriNetUnfolder]: 32386/50273 cut-off events. [2022-12-12 14:36:29,964 INFO L131 PetriNetUnfolder]: For 33746/34460 co-relation queries the response was YES. [2022-12-12 14:36:30,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162873 conditions, 50273 events. 32386/50273 cut-off events. For 33746/34460 co-relation queries the response was YES. Maximal size of possible extension queue 2043. Compared 395045 event pairs, 2412 based on Foata normal form. 3639/35928 useless extension candidates. Maximal degree in co-relation 162848. Up to 25309 conditions per place. [2022-12-12 14:36:30,238 INFO L137 encePairwiseOnDemand]: 71/85 looper letters, 83 selfloop transitions, 37 changer transitions 4/147 dead transitions. [2022-12-12 14:36:30,238 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 147 transitions, 1063 flow [2022-12-12 14:36:30,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 14:36:30,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 14:36:30,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 173 transitions. [2022-12-12 14:36:30,239 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.40705882352941175 [2022-12-12 14:36:30,239 INFO L175 Difference]: Start difference. First operand has 75 places, 86 transitions, 522 flow. Second operand 5 states and 173 transitions. [2022-12-12 14:36:30,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 147 transitions, 1063 flow [2022-12-12 14:36:30,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 147 transitions, 1049 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-12 14:36:30,403 INFO L231 Difference]: Finished difference. Result has 78 places, 96 transitions, 681 flow [2022-12-12 14:36:30,403 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=513, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=681, PETRI_PLACES=78, PETRI_TRANSITIONS=96} [2022-12-12 14:36:30,404 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, -19 predicate places. [2022-12-12 14:36:30,404 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 96 transitions, 681 flow [2022-12-12 14:36:30,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 14:36:30,404 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:36:30,404 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 14:36:30,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-12 14:36:30,404 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:36:30,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:36:30,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1125969183, now seen corresponding path program 1 times [2022-12-12 14:36:30,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:36:30,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617961414] [2022-12-12 14:36:30,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:36:30,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:36:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:36:30,951 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 14:36:30,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:36:30,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617961414] [2022-12-12 14:36:30,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617961414] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:36:30,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:36:30,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 14:36:30,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733397762] [2022-12-12 14:36:30,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:36:30,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 14:36:30,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:36:30,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 14:36:30,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-12 14:36:30,953 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 85 [2022-12-12 14:36:30,953 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 96 transitions, 681 flow. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 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 14:36:30,953 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:36:30,953 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 85 [2022-12-12 14:36:30,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:36:37,376 INFO L130 PetriNetUnfolder]: 49804/79429 cut-off events. [2022-12-12 14:36:37,376 INFO L131 PetriNetUnfolder]: For 106404/121080 co-relation queries the response was YES. [2022-12-12 14:36:37,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316467 conditions, 79429 events. 49804/79429 cut-off events. For 106404/121080 co-relation queries the response was YES. Maximal size of possible extension queue 4268. Compared 708072 event pairs, 6509 based on Foata normal form. 4841/66942 useless extension candidates. Maximal degree in co-relation 316441. Up to 46216 conditions per place. [2022-12-12 14:36:37,840 INFO L137 encePairwiseOnDemand]: 77/85 looper letters, 172 selfloop transitions, 15 changer transitions 24/250 dead transitions. [2022-12-12 14:36:37,840 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 250 transitions, 2151 flow [2022-12-12 14:36:37,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 14:36:37,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 14:36:37,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 215 transitions. [2022-12-12 14:36:37,842 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.36134453781512604 [2022-12-12 14:36:37,842 INFO L175 Difference]: Start difference. First operand has 78 places, 96 transitions, 681 flow. Second operand 7 states and 215 transitions. [2022-12-12 14:36:37,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 250 transitions, 2151 flow [2022-12-12 14:36:46,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 250 transitions, 1829 flow, removed 80 selfloop flow, removed 3 redundant places. [2022-12-12 14:36:46,192 INFO L231 Difference]: Finished difference. Result has 85 places, 111 transitions, 706 flow [2022-12-12 14:36:46,192 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=583, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=706, PETRI_PLACES=85, PETRI_TRANSITIONS=111} [2022-12-12 14:36:46,192 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, -12 predicate places. [2022-12-12 14:36:46,192 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 111 transitions, 706 flow [2022-12-12 14:36:46,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 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 14:36:46,193 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:36:46,193 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:36:46,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-12 14:36:46,193 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:36:46,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:36:46,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1076805788, now seen corresponding path program 1 times [2022-12-12 14:36:46,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:36:46,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695162001] [2022-12-12 14:36:46,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:36:46,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:36:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:36:46,302 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 14:36:46,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:36:46,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695162001] [2022-12-12 14:36:46,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695162001] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:36:46,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:36:46,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 14:36:46,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496636821] [2022-12-12 14:36:46,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:36:46,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 14:36:46,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:36:46,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 14:36:46,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 14:36:46,304 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 85 [2022-12-12 14:36:46,304 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 111 transitions, 706 flow. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 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 14:36:46,304 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:36:46,304 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 85 [2022-12-12 14:36:46,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:36:58,374 INFO L130 PetriNetUnfolder]: 85753/136610 cut-off events. [2022-12-12 14:36:58,374 INFO L131 PetriNetUnfolder]: For 245873/263180 co-relation queries the response was YES. [2022-12-12 14:36:59,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 526455 conditions, 136610 events. 85753/136610 cut-off events. For 245873/263180 co-relation queries the response was YES. Maximal size of possible extension queue 8074. Compared 1300294 event pairs, 13011 based on Foata normal form. 8438/115618 useless extension candidates. Maximal degree in co-relation 526425. Up to 59488 conditions per place. [2022-12-12 14:36:59,191 INFO L137 encePairwiseOnDemand]: 82/85 looper letters, 146 selfloop transitions, 2 changer transitions 25/207 dead transitions. [2022-12-12 14:36:59,191 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 207 transitions, 1636 flow [2022-12-12 14:36:59,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 14:36:59,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 14:36:59,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2022-12-12 14:36:59,192 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3588235294117647 [2022-12-12 14:36:59,192 INFO L175 Difference]: Start difference. First operand has 85 places, 111 transitions, 706 flow. Second operand 4 states and 122 transitions. [2022-12-12 14:36:59,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 207 transitions, 1636 flow