/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 18:31:48,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 18:31:48,314 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 18:31:48,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 18:31:48,350 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 18:31:48,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 18:31:48,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 18:31:48,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 18:31:48,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 18:31:48,365 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 18:31:48,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 18:31:48,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 18:31:48,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 18:31:48,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 18:31:48,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 18:31:48,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 18:31:48,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 18:31:48,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 18:31:48,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 18:31:48,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 18:31:48,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 18:31:48,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 18:31:48,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 18:31:48,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 18:31:48,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 18:31:48,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 18:31:48,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 18:31:48,386 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 18:31:48,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 18:31:48,387 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 18:31:48,387 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 18:31:48,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 18:31:48,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 18:31:48,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 18:31:48,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 18:31:48,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 18:31:48,392 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 18:31:48,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 18:31:48,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 18:31:48,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 18:31:48,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 18:31:48,394 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 18:31:48,420 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 18:31:48,421 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 18:31:48,422 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 18:31:48,422 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 18:31:48,422 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 18:31:48,423 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 18:31:48,423 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 18:31:48,423 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 18:31:48,423 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 18:31:48,423 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 18:31:48,424 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 18:31:48,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 18:31:48,424 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 18:31:48,424 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 18:31:48,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 18:31:48,425 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 18:31:48,425 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 18:31:48,425 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 18:31:48,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 18:31:48,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 18:31:48,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 18:31:48,425 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 18:31:48,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 18:31:48,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 18:31:48,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 18:31:48,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 18:31:48,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 18:31:48,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 18:31:48,426 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 18:31:48,426 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 18:31:48,427 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-12 18:31:48,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 18:31:48,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 18:31:48,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 18:31:48,740 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 18:31:48,741 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 18:31:48,741 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i [2022-12-12 18:31:49,712 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 18:31:49,930 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 18:31:49,931 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i [2022-12-12 18:31:49,957 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a15808cae/060fac3960714a7b9aa2118cb60d6c4d/FLAG339e8396e [2022-12-12 18:31:50,285 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a15808cae/060fac3960714a7b9aa2118cb60d6c4d [2022-12-12 18:31:50,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 18:31:50,287 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 18:31:50,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 18:31:50,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 18:31:50,290 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 18:31:50,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 06:31:50" (1/1) ... [2022-12-12 18:31:50,291 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20dffae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:31:50, skipping insertion in model container [2022-12-12 18:31:50,291 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 06:31:50" (1/1) ... [2022-12-12 18:31:50,296 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 18:31:50,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 18:31:50,425 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/mix008_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-12 18:31:50,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,556 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,556 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,556 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,562 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,562 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,563 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,567 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,567 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,567 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,567 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,572 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,572 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,572 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,573 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,575 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,575 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,589 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,589 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,608 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 18:31:50,617 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 18:31:50,626 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/mix008_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-12 18:31:50,649 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,650 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,650 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,650 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,650 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,669 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,669 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,670 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,670 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,670 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,670 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,670 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,673 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,673 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,673 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,675 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,675 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,679 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,679 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,679 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,680 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,680 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:31:50,680 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:31:50,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 18:31:50,709 INFO L208 MainTranslator]: Completed translation [2022-12-12 18:31:50,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:31:50 WrapperNode [2022-12-12 18:31:50,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 18:31:50,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 18:31:50,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 18:31:50,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 18:31:50,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:31:50" (1/1) ... [2022-12-12 18:31:50,737 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:31:50" (1/1) ... [2022-12-12 18:31:50,752 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 145 [2022-12-12 18:31:50,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 18:31:50,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 18:31:50,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 18:31:50,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 18:31:50,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:31:50" (1/1) ... [2022-12-12 18:31:50,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:31:50" (1/1) ... [2022-12-12 18:31:50,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:31:50" (1/1) ... [2022-12-12 18:31:50,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:31:50" (1/1) ... [2022-12-12 18:31:50,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:31:50" (1/1) ... [2022-12-12 18:31:50,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:31:50" (1/1) ... [2022-12-12 18:31:50,784 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:31:50" (1/1) ... [2022-12-12 18:31:50,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:31:50" (1/1) ... [2022-12-12 18:31:50,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 18:31:50,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 18:31:50,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 18:31:50,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 18:31:50,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:31:50" (1/1) ... [2022-12-12 18:31:50,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 18:31:50,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 18:31:50,833 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 18:31:50,851 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 18:31:50,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 18:31:50,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 18:31:50,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 18:31:50,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 18:31:50,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 18:31:50,870 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 18:31:50,870 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 18:31:50,870 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 18:31:50,870 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 18:31:50,870 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-12 18:31:50,871 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-12 18:31:50,871 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-12 18:31:50,871 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-12 18:31:50,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 18:31:50,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 18:31:50,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 18:31:50,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 18:31:50,873 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 18:31:51,013 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 18:31:51,014 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 18:31:51,381 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 18:31:51,530 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 18:31:51,530 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 18:31:51,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 06:31:51 BoogieIcfgContainer [2022-12-12 18:31:51,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 18:31:51,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 18:31:51,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 18:31:51,536 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 18:31:51,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 06:31:50" (1/3) ... [2022-12-12 18:31:51,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244576d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 06:31:51, skipping insertion in model container [2022-12-12 18:31:51,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:31:50" (2/3) ... [2022-12-12 18:31:51,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244576d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 06:31:51, skipping insertion in model container [2022-12-12 18:31:51,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 06:31:51" (3/3) ... [2022-12-12 18:31:51,538 INFO L112 eAbstractionObserver]: Analyzing ICFG mix008_power.oepc_pso.oepc_rmo.oepc.i [2022-12-12 18:31:51,551 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 18:31:51,551 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-12 18:31:51,552 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 18:31:51,601 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 18:31:51,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 132 transitions, 284 flow [2022-12-12 18:31:51,692 INFO L130 PetriNetUnfolder]: 2/128 cut-off events. [2022-12-12 18:31:51,693 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 18:31:51,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 128 events. 2/128 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 72 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2022-12-12 18:31:51,701 INFO L82 GeneralOperation]: Start removeDead. Operand has 143 places, 132 transitions, 284 flow [2022-12-12 18:31:51,707 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 128 transitions, 268 flow [2022-12-12 18:31:51,712 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 18:31:51,735 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 128 transitions, 268 flow [2022-12-12 18:31:51,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 128 transitions, 268 flow [2022-12-12 18:31:51,779 INFO L130 PetriNetUnfolder]: 2/128 cut-off events. [2022-12-12 18:31:51,779 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 18:31:51,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 128 events. 2/128 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 72 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2022-12-12 18:31:51,784 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 139 places, 128 transitions, 268 flow [2022-12-12 18:31:51,784 INFO L226 LiptonReduction]: Number of co-enabled transitions 3286 [2022-12-12 18:31:56,833 INFO L241 LiptonReduction]: Total number of compositions: 100 [2022-12-12 18:31:56,848 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 18:31:56,852 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;@5214b5ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 18:31:56,853 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-12 18:31:56,854 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2022-12-12 18:31:56,855 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 18:31:56,855 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:31:56,855 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-12 18:31:56,855 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 18:31:56,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:31:56,858 INFO L85 PathProgramCache]: Analyzing trace with hash 581121, now seen corresponding path program 1 times [2022-12-12 18:31:56,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:31:56,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092153676] [2022-12-12 18:31:56,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:31:56,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:31:56,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:31:57,146 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 18:31:57,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:31:57,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092153676] [2022-12-12 18:31:57,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092153676] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:31:57,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:31:57,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 18:31:57,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997577987] [2022-12-12 18:31:57,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:31:57,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 18:31:57,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:31:57,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 18:31:57,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 18:31:57,167 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 83 [2022-12-12 18:31:57,168 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 83 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 18:31:57,168 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:31:57,168 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 83 [2022-12-12 18:31:57,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:32:04,184 INFO L130 PetriNetUnfolder]: 66790/97272 cut-off events. [2022-12-12 18:32:04,184 INFO L131 PetriNetUnfolder]: For 150/150 co-relation queries the response was YES. [2022-12-12 18:32:04,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185561 conditions, 97272 events. 66790/97272 cut-off events. For 150/150 co-relation queries the response was YES. Maximal size of possible extension queue 4682. Compared 804224 event pairs, 9970 based on Foata normal form. 0/63181 useless extension candidates. Maximal degree in co-relation 185549. Up to 73765 conditions per place. [2022-12-12 18:32:04,507 INFO L137 encePairwiseOnDemand]: 79/83 looper letters, 48 selfloop transitions, 2 changer transitions 71/138 dead transitions. [2022-12-12 18:32:04,507 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 138 transitions, 537 flow [2022-12-12 18:32:04,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 18:32:04,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 18:32:04,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2022-12-12 18:32:04,518 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7108433734939759 [2022-12-12 18:32:04,521 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, 0 predicate places. [2022-12-12 18:32:04,521 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 138 transitions, 537 flow [2022-12-12 18:32:04,615 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 67 transitions, 255 flow [2022-12-12 18:32:04,617 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 67 transitions, 255 flow [2022-12-12 18:32:04,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 18:32:04,617 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:32:04,617 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:32:04,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 18:32:04,618 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 18:32:04,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:32:04,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1169465557, now seen corresponding path program 1 times [2022-12-12 18:32:04,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:32:04,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86605099] [2022-12-12 18:32:04,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:32:04,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:32:04,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:32:04,873 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 18:32:04,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:32:04,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86605099] [2022-12-12 18:32:04,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86605099] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:32:04,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:32:04,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 18:32:04,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953892211] [2022-12-12 18:32:04,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:32:04,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 18:32:04,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:32:04,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 18:32:04,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 18:32:04,875 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2022-12-12 18:32:04,875 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 67 transitions, 255 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 18:32:04,875 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:32:04,875 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2022-12-12 18:32:04,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:32:09,884 INFO L130 PetriNetUnfolder]: 52491/72793 cut-off events. [2022-12-12 18:32:09,885 INFO L131 PetriNetUnfolder]: For 11996/11996 co-relation queries the response was YES. [2022-12-12 18:32:10,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197780 conditions, 72793 events. 52491/72793 cut-off events. For 11996/11996 co-relation queries the response was YES. Maximal size of possible extension queue 2312. Compared 479488 event pairs, 5753 based on Foata normal form. 1572/63359 useless extension candidates. Maximal degree in co-relation 197765. Up to 47805 conditions per place. [2022-12-12 18:32:10,416 INFO L137 encePairwiseOnDemand]: 73/83 looper letters, 90 selfloop transitions, 12 changer transitions 2/115 dead transitions. [2022-12-12 18:32:10,416 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 115 transitions, 655 flow [2022-12-12 18:32:10,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 18:32:10,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 18:32:10,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2022-12-12 18:32:10,418 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.40160642570281124 [2022-12-12 18:32:10,418 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -34 predicate places. [2022-12-12 18:32:10,418 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 115 transitions, 655 flow [2022-12-12 18:32:10,619 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 113 transitions, 647 flow [2022-12-12 18:32:10,619 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 113 transitions, 647 flow [2022-12-12 18:32:10,619 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 18:32:10,619 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:32:10,620 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:32:10,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 18:32:10,620 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 18:32:10,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:32:10,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1893693666, now seen corresponding path program 1 times [2022-12-12 18:32:10,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:32:10,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089169767] [2022-12-12 18:32:10,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:32:10,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:32:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:32:10,914 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 18:32:10,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:32:10,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089169767] [2022-12-12 18:32:10,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089169767] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:32:10,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:32:10,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:32:10,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328359221] [2022-12-12 18:32:10,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:32:10,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:32:10,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:32:10,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:32:10,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:32:10,918 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2022-12-12 18:32:10,919 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 113 transitions, 647 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 18:32:10,919 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:32:10,919 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2022-12-12 18:32:10,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:32:14,948 INFO L130 PetriNetUnfolder]: 40879/57435 cut-off events. [2022-12-12 18:32:14,948 INFO L131 PetriNetUnfolder]: For 8090/8090 co-relation queries the response was YES. [2022-12-12 18:32:15,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212775 conditions, 57435 events. 40879/57435 cut-off events. For 8090/8090 co-relation queries the response was YES. Maximal size of possible extension queue 1870. Compared 378646 event pairs, 2024 based on Foata normal form. 72/48689 useless extension candidates. Maximal degree in co-relation 212757. Up to 39563 conditions per place. [2022-12-12 18:32:15,327 INFO L137 encePairwiseOnDemand]: 73/83 looper letters, 142 selfloop transitions, 17 changer transitions 0/170 dead transitions. [2022-12-12 18:32:15,327 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 170 transitions, 1313 flow [2022-12-12 18:32:15,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 18:32:15,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 18:32:15,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 128 transitions. [2022-12-12 18:32:15,330 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3855421686746988 [2022-12-12 18:32:15,331 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -32 predicate places. [2022-12-12 18:32:15,332 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 170 transitions, 1313 flow [2022-12-12 18:32:15,710 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 170 transitions, 1313 flow [2022-12-12 18:32:15,710 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 170 transitions, 1313 flow [2022-12-12 18:32:15,710 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 18:32:15,710 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:32:15,711 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:32:15,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 18:32:15,711 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 18:32:15,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:32:15,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1893691806, now seen corresponding path program 1 times [2022-12-12 18:32:15,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:32:15,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612499553] [2022-12-12 18:32:15,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:32:15,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:32:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:32:15,899 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 18:32:15,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:32:15,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612499553] [2022-12-12 18:32:15,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612499553] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:32:15,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:32:15,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:32:15,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355913023] [2022-12-12 18:32:15,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:32:15,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:32:15,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:32:15,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:32:15,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:32:15,903 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2022-12-12 18:32:15,904 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 170 transitions, 1313 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 18:32:15,904 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:32:15,904 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2022-12-12 18:32:15,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:32:19,919 INFO L130 PetriNetUnfolder]: 40159/56409 cut-off events. [2022-12-12 18:32:19,920 INFO L131 PetriNetUnfolder]: For 7998/7998 co-relation queries the response was YES. [2022-12-12 18:32:20,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262776 conditions, 56409 events. 40159/56409 cut-off events. For 7998/7998 co-relation queries the response was YES. Maximal size of possible extension queue 1820. Compared 369944 event pairs, 1894 based on Foata normal form. 84/47795 useless extension candidates. Maximal degree in co-relation 262755. Up to 38888 conditions per place. [2022-12-12 18:32:20,276 INFO L137 encePairwiseOnDemand]: 73/83 looper letters, 192 selfloop transitions, 26 changer transitions 0/229 dead transitions. [2022-12-12 18:32:20,277 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 229 transitions, 2224 flow [2022-12-12 18:32:20,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 18:32:20,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 18:32:20,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 133 transitions. [2022-12-12 18:32:20,278 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4006024096385542 [2022-12-12 18:32:20,279 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -29 predicate places. [2022-12-12 18:32:20,279 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 229 transitions, 2224 flow [2022-12-12 18:32:20,502 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 229 transitions, 2224 flow [2022-12-12 18:32:20,502 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 229 transitions, 2224 flow [2022-12-12 18:32:20,502 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 18:32:20,502 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:32:20,502 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:32:20,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 18:32:20,503 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 18:32:20,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:32:20,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1425040591, now seen corresponding path program 1 times [2022-12-12 18:32:20,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:32:20,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478423983] [2022-12-12 18:32:20,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:32:20,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:32:20,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:32:20,585 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 18:32:20,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:32:20,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478423983] [2022-12-12 18:32:20,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478423983] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:32:20,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:32:20,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:32:20,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176994164] [2022-12-12 18:32:20,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:32:20,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:32:20,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:32:20,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:32:20,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:32:20,587 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2022-12-12 18:32:20,587 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 229 transitions, 2224 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 18:32:20,587 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:32:20,588 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2022-12-12 18:32:20,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:32:24,572 INFO L130 PetriNetUnfolder]: 37919/53383 cut-off events. [2022-12-12 18:32:24,572 INFO L131 PetriNetUnfolder]: For 6918/6918 co-relation queries the response was YES. [2022-12-12 18:32:24,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299459 conditions, 53383 events. 37919/53383 cut-off events. For 6918/6918 co-relation queries the response was YES. Maximal size of possible extension queue 1694. Compared 340636 event pairs, 914 based on Foata normal form. 408/45493 useless extension candidates. Maximal degree in co-relation 299435. Up to 36992 conditions per place. [2022-12-12 18:32:24,886 INFO L137 encePairwiseOnDemand]: 73/83 looper letters, 283 selfloop transitions, 23 changer transitions 0/317 dead transitions. [2022-12-12 18:32:24,886 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 317 transitions, 3688 flow [2022-12-12 18:32:24,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 18:32:24,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 18:32:24,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2022-12-12 18:32:24,887 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3674698795180723 [2022-12-12 18:32:24,888 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -26 predicate places. [2022-12-12 18:32:24,888 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 317 transitions, 3688 flow [2022-12-12 18:32:25,115 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 317 transitions, 3688 flow [2022-12-12 18:32:25,115 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 317 transitions, 3688 flow [2022-12-12 18:32:25,115 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 18:32:25,115 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:32:25,115 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:32:25,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 18:32:25,115 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 18:32:25,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:32:25,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1973634421, now seen corresponding path program 1 times [2022-12-12 18:32:25,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:32:25,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468165386] [2022-12-12 18:32:25,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:32:25,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:32:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:32:25,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:32:25,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:32:25,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468165386] [2022-12-12 18:32:25,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468165386] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:32:25,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:32:25,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 18:32:25,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262138661] [2022-12-12 18:32:25,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:32:25,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:32:25,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:32:25,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:32:25,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:32:25,230 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2022-12-12 18:32:25,230 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 317 transitions, 3688 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:32:25,230 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:32:25,230 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2022-12-12 18:32:25,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:32:32,001 INFO L130 PetriNetUnfolder]: 55091/78351 cut-off events. [2022-12-12 18:32:32,001 INFO L131 PetriNetUnfolder]: For 10186/10186 co-relation queries the response was YES. [2022-12-12 18:32:32,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 513224 conditions, 78351 events. 55091/78351 cut-off events. For 10186/10186 co-relation queries the response was YES. Maximal size of possible extension queue 2536. Compared 536691 event pairs, 1196 based on Foata normal form. 840/66009 useless extension candidates. Maximal degree in co-relation 513197. Up to 55638 conditions per place. [2022-12-12 18:32:32,488 INFO L137 encePairwiseOnDemand]: 73/83 looper letters, 322 selfloop transitions, 39 changer transitions 39/411 dead transitions. [2022-12-12 18:32:32,488 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 411 transitions, 5603 flow [2022-12-12 18:32:32,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 18:32:32,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 18:32:32,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 136 transitions. [2022-12-12 18:32:32,489 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.40963855421686746 [2022-12-12 18:32:32,490 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -23 predicate places. [2022-12-12 18:32:32,490 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 411 transitions, 5603 flow [2022-12-12 18:32:32,763 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 372 transitions, 5065 flow [2022-12-12 18:32:32,763 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 372 transitions, 5065 flow [2022-12-12 18:32:32,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:32:32,763 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:32:32,763 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:32:32,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 18:32:32,763 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 18:32:32,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:32:32,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1973569073, now seen corresponding path program 1 times [2022-12-12 18:32:32,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:32:32,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177000112] [2022-12-12 18:32:32,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:32:32,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:32:32,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:32:32,843 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 18:32:32,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:32:32,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177000112] [2022-12-12 18:32:32,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177000112] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:32:32,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:32:32,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:32:32,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729613751] [2022-12-12 18:32:32,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:32:32,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:32:32,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:32:32,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:32:32,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:32:32,844 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2022-12-12 18:32:32,845 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 372 transitions, 5065 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:32:32,845 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:32:32,845 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2022-12-12 18:32:32,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:32:39,042 INFO L130 PetriNetUnfolder]: 46856/66905 cut-off events. [2022-12-12 18:32:39,042 INFO L131 PetriNetUnfolder]: For 7770/7770 co-relation queries the response was YES. [2022-12-12 18:32:39,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 501929 conditions, 66905 events. 46856/66905 cut-off events. For 7770/7770 co-relation queries the response was YES. Maximal size of possible extension queue 2271. Compared 451554 event pairs, 844 based on Foata normal form. 170/55494 useless extension candidates. Maximal degree in co-relation 501899. Up to 48621 conditions per place. [2022-12-12 18:32:39,500 INFO L137 encePairwiseOnDemand]: 74/83 looper letters, 479 selfloop transitions, 22 changer transitions 12/524 dead transitions. [2022-12-12 18:32:39,500 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 524 transitions, 8212 flow [2022-12-12 18:32:39,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 18:32:39,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 18:32:39,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 126 transitions. [2022-12-12 18:32:39,501 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3795180722891566 [2022-12-12 18:32:39,501 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -20 predicate places. [2022-12-12 18:32:39,501 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 524 transitions, 8212 flow [2022-12-12 18:32:39,785 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 512 transitions, 8028 flow [2022-12-12 18:32:39,785 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 512 transitions, 8028 flow [2022-12-12 18:32:39,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:32:39,785 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:32:39,785 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:32:39,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 18:32:39,786 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 18:32:39,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:32:39,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1051110543, now seen corresponding path program 1 times [2022-12-12 18:32:39,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:32:39,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331843794] [2022-12-12 18:32:39,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:32:39,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:32:39,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:32:39,887 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 18:32:39,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:32:39,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331843794] [2022-12-12 18:32:39,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331843794] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:32:39,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:32:39,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:32:39,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546993007] [2022-12-12 18:32:39,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:32:39,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 18:32:39,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:32:39,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 18:32:39,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 18:32:39,888 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 83 [2022-12-12 18:32:39,889 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 512 transitions, 8028 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 18:32:39,889 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:32:39,889 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 83 [2022-12-12 18:32:39,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:32:49,739 INFO L130 PetriNetUnfolder]: 68644/96039 cut-off events. [2022-12-12 18:32:49,739 INFO L131 PetriNetUnfolder]: For 265791/269527 co-relation queries the response was YES. [2022-12-12 18:32:50,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 747460 conditions, 96039 events. 68644/96039 cut-off events. For 265791/269527 co-relation queries the response was YES. Maximal size of possible extension queue 3430. Compared 655562 event pairs, 7061 based on Foata normal form. 1176/81310 useless extension candidates. Maximal degree in co-relation 747427. Up to 83986 conditions per place. [2022-12-12 18:32:50,610 INFO L137 encePairwiseOnDemand]: 69/83 looper letters, 595 selfloop transitions, 147 changer transitions 15/811 dead transitions. [2022-12-12 18:32:50,611 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 811 transitions, 14321 flow [2022-12-12 18:32:50,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 18:32:50,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 18:32:50,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2022-12-12 18:32:50,612 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.40963855421686746 [2022-12-12 18:32:50,612 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -18 predicate places. [2022-12-12 18:32:50,612 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 811 transitions, 14321 flow [2022-12-12 18:32:51,017 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 796 transitions, 14051 flow [2022-12-12 18:32:51,018 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 796 transitions, 14051 flow [2022-12-12 18:32:51,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 18:32:51,018 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:32:51,018 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 18:32:51,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 18:32:51,018 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 18:32:51,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:32:51,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1237144203, now seen corresponding path program 1 times [2022-12-12 18:32:51,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:32:51,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714661066] [2022-12-12 18:32:51,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:32:51,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:32:51,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:32:51,110 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 18:32:51,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:32:51,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714661066] [2022-12-12 18:32:51,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714661066] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:32:51,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:32:51,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 18:32:51,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124508079] [2022-12-12 18:32:51,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:32:51,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:32:51,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:32:51,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:32:51,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:32:51,111 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2022-12-12 18:32:51,111 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 796 transitions, 14051 flow. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 18:32:51,112 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:32:51,112 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2022-12-12 18:32:51,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:33:08,078 INFO L130 PetriNetUnfolder]: 96845/136929 cut-off events. [2022-12-12 18:33:08,079 INFO L131 PetriNetUnfolder]: For 495661/504030 co-relation queries the response was YES. [2022-12-12 18:33:08,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1175435 conditions, 136929 events. 96845/136929 cut-off events. For 495661/504030 co-relation queries the response was YES. Maximal size of possible extension queue 5009. Compared 1000215 event pairs, 11555 based on Foata normal form. 2889/115865 useless extension candidates. Maximal degree in co-relation 1175399. Up to 121739 conditions per place. [2022-12-12 18:33:08,982 INFO L137 encePairwiseOnDemand]: 74/83 looper letters, 808 selfloop transitions, 62 changer transitions 153/1038 dead transitions. [2022-12-12 18:33:08,983 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 1038 transitions, 20433 flow [2022-12-12 18:33:08,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 18:33:08,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 18:33:09,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 136 transitions. [2022-12-12 18:33:09,008 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.40963855421686746 [2022-12-12 18:33:09,008 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -15 predicate places. [2022-12-12 18:33:09,008 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 1038 transitions, 20433 flow [2022-12-12 18:33:09,481 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 885 transitions, 17381 flow [2022-12-12 18:33:09,482 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 885 transitions, 17381 flow [2022-12-12 18:33:09,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 18:33:09,482 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:33:09,482 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 18:33:09,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-12 18:33:09,482 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 18:33:09,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:33:09,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1068233613, now seen corresponding path program 1 times [2022-12-12 18:33:09,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:33:09,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644518658] [2022-12-12 18:33:09,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:33:09,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:33:09,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:33:09,611 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 18:33:09,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:33:09,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644518658] [2022-12-12 18:33:09,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644518658] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:33:09,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:33:09,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 18:33:09,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64201300] [2022-12-12 18:33:09,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:33:09,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:33:09,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:33:09,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:33:09,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:33:09,612 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 83 [2022-12-12 18:33:09,612 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 885 transitions, 17381 flow. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:33:09,612 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:33:09,612 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 83 [2022-12-12 18:33:09,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:33:22,239 INFO L130 PetriNetUnfolder]: 51937/78774 cut-off events. [2022-12-12 18:33:22,240 INFO L131 PetriNetUnfolder]: For 294004/300253 co-relation queries the response was YES. [2022-12-12 18:33:22,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 746577 conditions, 78774 events. 51937/78774 cut-off events. For 294004/300253 co-relation queries the response was YES. Maximal size of possible extension queue 3261. Compared 620666 event pairs, 4291 based on Foata normal form. 4507/70193 useless extension candidates. Maximal degree in co-relation 746538. Up to 69245 conditions per place. [2022-12-12 18:33:22,821 INFO L137 encePairwiseOnDemand]: 69/83 looper letters, 627 selfloop transitions, 271 changer transitions 141/1095 dead transitions. [2022-12-12 18:33:22,822 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 1095 transitions, 23608 flow [2022-12-12 18:33:22,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 18:33:22,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 18:33:22,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 141 transitions. [2022-12-12 18:33:22,823 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4246987951807229 [2022-12-12 18:33:22,823 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -12 predicate places. [2022-12-12 18:33:22,823 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 1095 transitions, 23608 flow [2022-12-12 18:33:23,254 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 954 transitions, 20530 flow [2022-12-12 18:33:23,255 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 954 transitions, 20530 flow [2022-12-12 18:33:23,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:33:23,255 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:33:23,255 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] [2022-12-12 18:33:23,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-12 18:33:23,255 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 18:33:23,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:33:23,255 INFO L85 PathProgramCache]: Analyzing trace with hash 339628417, now seen corresponding path program 1 times [2022-12-12 18:33:23,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:33:23,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921317854] [2022-12-12 18:33:23,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:33:23,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:33:23,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:33:23,388 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 18:33:23,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:33:23,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921317854] [2022-12-12 18:33:23,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921317854] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:33:23,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:33:23,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 18:33:23,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081252412] [2022-12-12 18:33:23,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:33:23,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 18:33:23,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:33:23,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 18:33:23,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 18:33:23,389 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2022-12-12 18:33:23,389 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 954 transitions, 20530 flow. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 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 18:33:23,389 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:33:23,389 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2022-12-12 18:33:23,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand