/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/weaver/parallel-ticket-8.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 19:48:50,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 19:48:50,573 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 19:48:50,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 19:48:50,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 19:48:50,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 19:48:50,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 19:48:50,615 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 19:48:50,616 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 19:48:50,617 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 19:48:50,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 19:48:50,618 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 19:48:50,619 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 19:48:50,624 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 19:48:50,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 19:48:50,627 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 19:48:50,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 19:48:50,631 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 19:48:50,634 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 19:48:50,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 19:48:50,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 19:48:50,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 19:48:50,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 19:48:50,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 19:48:50,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 19:48:50,644 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 19:48:50,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 19:48:50,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 19:48:50,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 19:48:50,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 19:48:50,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 19:48:50,646 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 19:48:50,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 19:48:50,647 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 19:48:50,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 19:48:50,648 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 19:48:50,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 19:48:50,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 19:48:50,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 19:48:50,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 19:48:50,650 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 19:48:50,654 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 19:48:50,681 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 19:48:50,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 19:48:50,683 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 19:48:50,683 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 19:48:50,683 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 19:48:50,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 19:48:50,684 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 19:48:50,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 19:48:50,684 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 19:48:50,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 19:48:50,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 19:48:50,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 19:48:50,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 19:48:50,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 19:48:50,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 19:48:50,685 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 19:48:50,685 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 19:48:50,685 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 19:48:50,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 19:48:50,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 19:48:50,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 19:48:50,686 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 19:48:50,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 19:48:50,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 19:48:50,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 19:48:50,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 19:48:50,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 19:48:50,687 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 19:48:50,687 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 19:48:50,687 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 19:48:50,687 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-12 19:48:50,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 19:48:50,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 19:48:50,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 19:48:50,950 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 19:48:50,951 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 19:48:50,952 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-8.wvr.c [2022-12-12 19:48:51,882 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 19:48:52,094 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 19:48:52,094 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-8.wvr.c [2022-12-12 19:48:52,099 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d88e5589/a9ae592017014344b22c49f76dcd1aca/FLAG9afb31264 [2022-12-12 19:48:52,111 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d88e5589/a9ae592017014344b22c49f76dcd1aca [2022-12-12 19:48:52,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 19:48:52,114 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 19:48:52,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 19:48:52,114 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 19:48:52,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 19:48:52,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 07:48:52" (1/1) ... [2022-12-12 19:48:52,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d8d2fda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:52, skipping insertion in model container [2022-12-12 19:48:52,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 07:48:52" (1/1) ... [2022-12-12 19:48:52,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 19:48:52,139 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 19:48:52,249 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,251 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,251 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,253 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,254 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,254 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,255 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,256 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,256 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,257 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,258 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,258 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,258 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,259 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,259 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,260 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,260 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,260 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,261 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,262 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,262 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,262 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,262 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,263 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,263 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,265 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,268 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,269 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,269 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,269 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,269 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,269 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,270 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,270 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,270 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,272 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,272 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,272 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,272 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,273 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,273 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,273 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,273 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,273 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,274 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,274 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,274 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,274 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,275 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,275 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,275 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,275 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,276 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,276 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,276 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,276 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,277 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,277 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,277 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,277 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,277 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,289 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-8.wvr.c[5274,5287] [2022-12-12 19:48:52,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 19:48:52,300 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 19:48:52,308 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,314 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,314 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,314 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,314 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:48:52,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:48:52,329 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-8.wvr.c[5274,5287] [2022-12-12 19:48:52,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 19:48:52,340 INFO L208 MainTranslator]: Completed translation [2022-12-12 19:48:52,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:52 WrapperNode [2022-12-12 19:48:52,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 19:48:52,341 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 19:48:52,341 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 19:48:52,342 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 19:48:52,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:52" (1/1) ... [2022-12-12 19:48:52,364 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:52" (1/1) ... [2022-12-12 19:48:52,384 INFO L138 Inliner]: procedures = 27, calls = 130, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 358 [2022-12-12 19:48:52,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 19:48:52,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 19:48:52,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 19:48:52,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 19:48:52,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:52" (1/1) ... [2022-12-12 19:48:52,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:52" (1/1) ... [2022-12-12 19:48:52,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:52" (1/1) ... [2022-12-12 19:48:52,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:52" (1/1) ... [2022-12-12 19:48:52,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:52" (1/1) ... [2022-12-12 19:48:52,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:52" (1/1) ... [2022-12-12 19:48:52,402 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:52" (1/1) ... [2022-12-12 19:48:52,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:52" (1/1) ... [2022-12-12 19:48:52,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 19:48:52,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 19:48:52,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 19:48:52,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 19:48:52,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:52" (1/1) ... [2022-12-12 19:48:52,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 19:48:52,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 19:48:52,441 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 19:48:52,457 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 19:48:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 19:48:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 19:48:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 19:48:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 19:48:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 19:48:52,478 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 19:48:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 19:48:52,479 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 19:48:52,479 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-12 19:48:52,479 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-12 19:48:52,479 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-12 19:48:52,479 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-12 19:48:52,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 19:48:52,479 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-12-12 19:48:52,479 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-12-12 19:48:52,479 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-12-12 19:48:52,480 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-12-12 19:48:52,480 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2022-12-12 19:48:52,480 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2022-12-12 19:48:52,480 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2022-12-12 19:48:52,480 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2022-12-12 19:48:52,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 19:48:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 19:48:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 19:48:52,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 19:48:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 19:48:52,482 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 19:48:52,632 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 19:48:52,633 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 19:48:52,933 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 19:48:53,090 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 19:48:53,091 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 19:48:53,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 07:48:53 BoogieIcfgContainer [2022-12-12 19:48:53,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 19:48:53,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 19:48:53,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 19:48:53,096 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 19:48:53,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 07:48:52" (1/3) ... [2022-12-12 19:48:53,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17dc2efa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 07:48:53, skipping insertion in model container [2022-12-12 19:48:53,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:48:52" (2/3) ... [2022-12-12 19:48:53,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17dc2efa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 07:48:53, skipping insertion in model container [2022-12-12 19:48:53,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 07:48:53" (3/3) ... [2022-12-12 19:48:53,098 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-8.wvr.c [2022-12-12 19:48:53,117 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 19:48:53,118 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 19:48:53,118 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 19:48:53,236 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-12-12 19:48:53,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 250 places, 227 transitions, 518 flow [2022-12-12 19:48:53,386 INFO L130 PetriNetUnfolder]: 2/219 cut-off events. [2022-12-12 19:48:53,387 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-12 19:48:53,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 219 events. 2/219 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 103 event pairs, 0 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 172. Up to 2 conditions per place. [2022-12-12 19:48:53,392 INFO L82 GeneralOperation]: Start removeDead. Operand has 250 places, 227 transitions, 518 flow [2022-12-12 19:48:53,399 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 222 places, 199 transitions, 446 flow [2022-12-12 19:48:53,400 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 19:48:53,425 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 222 places, 199 transitions, 446 flow [2022-12-12 19:48:53,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 222 places, 199 transitions, 446 flow [2022-12-12 19:48:53,506 INFO L130 PetriNetUnfolder]: 2/199 cut-off events. [2022-12-12 19:48:53,506 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-12 19:48:53,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 199 events. 2/199 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 102 event pairs, 0 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 172. Up to 2 conditions per place. [2022-12-12 19:48:53,512 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 222 places, 199 transitions, 446 flow [2022-12-12 19:48:53,512 INFO L226 LiptonReduction]: Number of co-enabled transitions 5502 [2022-12-12 19:49:08,741 INFO L241 LiptonReduction]: Total number of compositions: 149 [2022-12-12 19:49:08,752 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 19:49:08,756 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;@2acbc146, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 19:49:08,757 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-12-12 19:49:08,763 INFO L130 PetriNetUnfolder]: 0/49 cut-off events. [2022-12-12 19:49:08,764 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-12 19:49:08,764 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:49:08,765 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 19:49:08,765 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-12 19:49:08,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:49:08,768 INFO L85 PathProgramCache]: Analyzing trace with hash 137922621, now seen corresponding path program 1 times [2022-12-12 19:49:08,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:49:08,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363684330] [2022-12-12 19:49:08,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:49:08,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:49:09,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:49:10,552 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 19:49:10,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:49:10,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363684330] [2022-12-12 19:49:10,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363684330] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:49:10,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:49:10,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 19:49:10,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753466564] [2022-12-12 19:49:10,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:49:10,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 19:49:10,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:49:10,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 19:49:10,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-12 19:49:10,580 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 50 [2022-12-12 19:49:10,581 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 50 transitions, 148 flow. Second operand has 6 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:49:10,581 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:49:10,581 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 50 [2022-12-12 19:49:10,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:49:28,416 INFO L130 PetriNetUnfolder]: 232377/283581 cut-off events. [2022-12-12 19:49:28,416 INFO L131 PetriNetUnfolder]: For 19884/19884 co-relation queries the response was YES. [2022-12-12 19:49:29,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 586214 conditions, 283581 events. 232377/283581 cut-off events. For 19884/19884 co-relation queries the response was YES. Maximal size of possible extension queue 5667. Compared 1404325 event pairs, 65501 based on Foata normal form. 1/283582 useless extension candidates. Maximal degree in co-relation 462248. Up to 136160 conditions per place. [2022-12-12 19:49:30,193 INFO L137 encePairwiseOnDemand]: 39/50 looper letters, 118 selfloop transitions, 17 changer transitions 16/151 dead transitions. [2022-12-12 19:49:30,193 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 151 transitions, 733 flow [2022-12-12 19:49:30,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 19:49:30,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 19:49:30,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 152 transitions. [2022-12-12 19:49:30,203 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.608 [2022-12-12 19:49:30,205 INFO L295 CegarLoopForPetriNet]: 75 programPoint places, 4 predicate places. [2022-12-12 19:49:30,206 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 151 transitions, 733 flow [2022-12-12 19:49:30,874 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 135 transitions, 645 flow [2022-12-12 19:49:30,876 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 135 transitions, 645 flow [2022-12-12 19:49:30,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:49:30,876 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:49:30,876 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 19:49:30,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 19:49:30,877 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-12 19:49:30,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:49:30,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1276697227, now seen corresponding path program 2 times [2022-12-12 19:49:30,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:49:30,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415952392] [2022-12-12 19:49:30,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:49:30,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:49:31,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:49:31,927 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 19:49:31,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:49:31,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415952392] [2022-12-12 19:49:31,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415952392] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:49:31,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:49:31,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 19:49:31,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668141965] [2022-12-12 19:49:31,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:49:31,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 19:49:31,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:49:31,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 19:49:31,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-12 19:49:31,936 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 50 [2022-12-12 19:49:31,936 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 135 transitions, 645 flow. Second operand has 6 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:49:31,936 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:49:31,936 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 50 [2022-12-12 19:49:31,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:49:49,740 INFO L130 PetriNetUnfolder]: 226327/277531 cut-off events. [2022-12-12 19:49:49,740 INFO L131 PetriNetUnfolder]: For 21249/21249 co-relation queries the response was YES. [2022-12-12 19:49:50,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 851646 conditions, 277531 events. 226327/277531 cut-off events. For 21249/21249 co-relation queries the response was YES. Maximal size of possible extension queue 5830. Compared 1402265 event pairs, 43087 based on Foata normal form. 1/277532 useless extension candidates. Maximal degree in co-relation 667891. Up to 182641 conditions per place. [2022-12-12 19:49:51,435 INFO L137 encePairwiseOnDemand]: 39/50 looper letters, 138 selfloop transitions, 24 changer transitions 74/236 dead transitions. [2022-12-12 19:49:51,435 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 236 transitions, 1605 flow [2022-12-12 19:49:51,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 19:49:51,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 19:49:51,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 181 transitions. [2022-12-12 19:49:51,437 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6033333333333334 [2022-12-12 19:49:51,437 INFO L295 CegarLoopForPetriNet]: 75 programPoint places, 9 predicate places. [2022-12-12 19:49:51,437 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 236 transitions, 1605 flow [2022-12-12 19:49:52,252 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 162 transitions, 1095 flow [2022-12-12 19:49:52,252 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 162 transitions, 1095 flow [2022-12-12 19:49:52,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:49:52,253 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:49:52,253 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 19:49:52,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 19:49:52,253 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-12 19:49:52,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:49:52,254 INFO L85 PathProgramCache]: Analyzing trace with hash 973242753, now seen corresponding path program 3 times [2022-12-12 19:49:52,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:49:52,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177798519] [2022-12-12 19:49:52,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:49:52,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:49:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:49:52,534 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 19:49:52,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:49:52,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177798519] [2022-12-12 19:49:52,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177798519] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:49:52,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:49:52,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 19:49:52,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365991654] [2022-12-12 19:49:52,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:49:52,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 19:49:52,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:49:52,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 19:49:52,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-12 19:49:52,539 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 50 [2022-12-12 19:49:52,539 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 162 transitions, 1095 flow. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:49:52,539 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:49:52,539 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 50 [2022-12-12 19:49:52,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:50:06,756 INFO L130 PetriNetUnfolder]: 176912/215985 cut-off events. [2022-12-12 19:50:06,756 INFO L131 PetriNetUnfolder]: For 11818/11818 co-relation queries the response was YES. [2022-12-12 19:50:07,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 878008 conditions, 215985 events. 176912/215985 cut-off events. For 11818/11818 co-relation queries the response was YES. Maximal size of possible extension queue 4591. Compared 1054284 event pairs, 29948 based on Foata normal form. 508/216493 useless extension candidates. Maximal degree in co-relation 873283. Up to 211603 conditions per place. [2022-12-12 19:50:08,313 INFO L137 encePairwiseOnDemand]: 34/50 looper letters, 254 selfloop transitions, 35 changer transitions 0/289 dead transitions. [2022-12-12 19:50:08,314 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 289 transitions, 2528 flow [2022-12-12 19:50:08,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 19:50:08,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 19:50:08,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 127 transitions. [2022-12-12 19:50:08,315 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.508 [2022-12-12 19:50:08,315 INFO L295 CegarLoopForPetriNet]: 75 programPoint places, 13 predicate places. [2022-12-12 19:50:08,315 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 289 transitions, 2528 flow [2022-12-12 19:50:09,207 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 289 transitions, 2528 flow [2022-12-12 19:50:09,208 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 289 transitions, 2528 flow [2022-12-12 19:50:09,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:50:09,208 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:50:09,208 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 19:50:09,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 19:50:09,208 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-12 19:50:09,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:50:09,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1372052613, now seen corresponding path program 4 times [2022-12-12 19:50:09,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:50:09,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072692370] [2022-12-12 19:50:09,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:50:09,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:50:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:50:09,455 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 19:50:09,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:50:09,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072692370] [2022-12-12 19:50:09,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072692370] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:50:09,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:50:09,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 19:50:09,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872154305] [2022-12-12 19:50:09,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:50:09,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 19:50:09,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:50:09,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 19:50:09,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-12 19:50:09,459 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 50 [2022-12-12 19:50:09,459 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 289 transitions, 2528 flow. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:50:09,459 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:50:09,459 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 50 [2022-12-12 19:50:09,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand