/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 21:21:46,935 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 21:21:46,937 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 21:21:46,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 21:21:46,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 21:21:46,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 21:21:46,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 21:21:46,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 21:21:46,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 21:21:46,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 21:21:46,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 21:21:46,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 21:21:46,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 21:21:46,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 21:21:46,987 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 21:21:46,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 21:21:46,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 21:21:46,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 21:21:46,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 21:21:46,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 21:21:46,996 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 21:21:46,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 21:21:46,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 21:21:46,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 21:21:47,003 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 21:21:47,003 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 21:21:47,004 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 21:21:47,005 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 21:21:47,005 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 21:21:47,005 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 21:21:47,006 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 21:21:47,006 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 21:21:47,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 21:21:47,008 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 21:21:47,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 21:21:47,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 21:21:47,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 21:21:47,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 21:21:47,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 21:21:47,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 21:21:47,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 21:21:47,028 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 [2022-12-05 21:21:47,052 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 21:21:47,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 21:21:47,053 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 21:21:47,053 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 21:21:47,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 21:21:47,054 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 21:21:47,054 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 21:21:47,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 21:21:47,054 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 21:21:47,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 21:21:47,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 21:21:47,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 21:21:47,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 21:21:47,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 21:21:47,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 21:21:47,055 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 21:21:47,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 21:21:47,056 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 21:21:47,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 21:21:47,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 21:21:47,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 21:21:47,056 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 21:21:47,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 21:21:47,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 21:21:47,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 21:21:47,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 21:21:47,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 21:21:47,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 21:21:47,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 21:21:47,057 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 21:21:47,057 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 21:21:47,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 21:21:47,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 21:21:47,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 21:21:47,333 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 21:21:47,333 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 21:21:47,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c [2022-12-05 21:21:48,190 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 21:21:48,382 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 21:21:48,382 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c [2022-12-05 21:21:48,393 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83a481d8f/5604a6d2f9c54c428d57db7b2b6c9c46/FLAG31f5cbfcb [2022-12-05 21:21:48,403 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83a481d8f/5604a6d2f9c54c428d57db7b2b6c9c46 [2022-12-05 21:21:48,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 21:21:48,406 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 21:21:48,406 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 21:21:48,406 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 21:21:48,408 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 21:21:48,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:21:48" (1/1) ... [2022-12-05 21:21:48,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29b4ff28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:48, skipping insertion in model container [2022-12-05 21:21:48,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:21:48" (1/1) ... [2022-12-05 21:21:48,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 21:21:48,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 21:21:48,513 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,514 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,514 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,515 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,515 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,515 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,515 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,515 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,516 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,516 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,521 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,521 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,521 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,521 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,522 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,522 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,522 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,522 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,523 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,523 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,523 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,523 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,524 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,524 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,524 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,524 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,527 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,527 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,527 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,527 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,528 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,528 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,528 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,528 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,528 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,536 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-7.wvr.c[4837,4850] [2022-12-05 21:21:48,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 21:21:48,545 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 21:21:48,572 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,573 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,573 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,573 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,575 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,575 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,575 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,575 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,575 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,576 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,576 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,576 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,576 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,577 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,577 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,577 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,577 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,577 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,578 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,578 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,578 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,578 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,578 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,579 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,579 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,579 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,579 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,579 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,580 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,580 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,580 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,580 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,580 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,581 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,581 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,581 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,581 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,581 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,582 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,582 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,582 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,582 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,582 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,583 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,583 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,583 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,583 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,583 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:48,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:48,601 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-7.wvr.c[4837,4850] [2022-12-05 21:21:48,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 21:21:48,616 INFO L208 MainTranslator]: Completed translation [2022-12-05 21:21:48,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:48 WrapperNode [2022-12-05 21:21:48,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 21:21:48,618 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 21:21:48,618 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 21:21:48,618 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 21:21:48,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:48" (1/1) ... [2022-12-05 21:21:48,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:48" (1/1) ... [2022-12-05 21:21:48,664 INFO L138 Inliner]: procedures = 26, calls = 115, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 318 [2022-12-05 21:21:48,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 21:21:48,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 21:21:48,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 21:21:48,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 21:21:48,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:48" (1/1) ... [2022-12-05 21:21:48,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:48" (1/1) ... [2022-12-05 21:21:48,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:48" (1/1) ... [2022-12-05 21:21:48,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:48" (1/1) ... [2022-12-05 21:21:48,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:48" (1/1) ... [2022-12-05 21:21:48,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:48" (1/1) ... [2022-12-05 21:21:48,699 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:48" (1/1) ... [2022-12-05 21:21:48,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:48" (1/1) ... [2022-12-05 21:21:48,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 21:21:48,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 21:21:48,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 21:21:48,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 21:21:48,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:48" (1/1) ... [2022-12-05 21:21:48,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 21:21:48,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 21:21:48,736 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-05 21:21:48,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-05 21:21:48,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 21:21:48,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 21:21:48,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 21:21:48,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 21:21:48,799 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-05 21:21:48,799 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-05 21:21:48,800 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-05 21:21:48,800 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-05 21:21:48,800 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-05 21:21:48,800 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-05 21:21:48,801 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-05 21:21:48,803 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-05 21:21:48,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 21:21:48,807 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-12-05 21:21:48,807 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-12-05 21:21:48,807 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-12-05 21:21:48,807 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-12-05 21:21:48,807 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2022-12-05 21:21:48,807 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2022-12-05 21:21:48,807 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 21:21:48,807 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 21:21:48,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 21:21:48,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 21:21:48,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 21:21:48,809 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 21:21:48,960 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 21:21:48,961 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 21:21:49,214 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 21:21:49,358 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 21:21:49,358 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 21:21:49,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:21:49 BoogieIcfgContainer [2022-12-05 21:21:49,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 21:21:49,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 21:21:49,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 21:21:49,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 21:21:49,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 09:21:48" (1/3) ... [2022-12-05 21:21:49,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21443d12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:21:49, skipping insertion in model container [2022-12-05 21:21:49,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:48" (2/3) ... [2022-12-05 21:21:49,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21443d12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:21:49, skipping insertion in model container [2022-12-05 21:21:49,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:21:49" (3/3) ... [2022-12-05 21:21:49,367 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-7.wvr.c [2022-12-05 21:21:49,380 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 21:21:49,380 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 21:21:49,380 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 21:21:49,455 INFO L144 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2022-12-05 21:21:49,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 224 places, 204 transitions, 464 flow [2022-12-05 21:21:49,581 INFO L130 PetriNetUnfolder]: 2/197 cut-off events. [2022-12-05 21:21:49,581 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-05 21:21:49,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 197 events. 2/197 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 87 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 153. Up to 2 conditions per place. [2022-12-05 21:21:49,595 INFO L82 GeneralOperation]: Start removeDead. Operand has 224 places, 204 transitions, 464 flow [2022-12-05 21:21:49,602 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 199 places, 179 transitions, 400 flow [2022-12-05 21:21:49,606 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 21:21:49,630 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 199 places, 179 transitions, 400 flow [2022-12-05 21:21:49,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 199 places, 179 transitions, 400 flow [2022-12-05 21:21:49,710 INFO L130 PetriNetUnfolder]: 2/179 cut-off events. [2022-12-05 21:21:49,710 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-05 21:21:49,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 179 events. 2/179 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 86 event pairs, 0 based on Foata normal form. 0/177 useless extension candidates. Maximal degree in co-relation 153. Up to 2 conditions per place. [2022-12-05 21:21:49,715 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 199 places, 179 transitions, 400 flow [2022-12-05 21:21:49,715 INFO L188 LiptonReduction]: Number of co-enabled transitions 4182 [2022-12-05 21:21:59,634 INFO L203 LiptonReduction]: Total number of compositions: 135 [2022-12-05 21:21:59,664 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 21:21:59,668 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;@572dfcb4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 21:21:59,668 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-05 21:21:59,675 INFO L130 PetriNetUnfolder]: 0/43 cut-off events. [2022-12-05 21:21:59,691 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-05 21:21:59,692 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 21:21:59,692 INFO L213 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] [2022-12-05 21:21:59,693 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 5 more)] === [2022-12-05 21:21:59,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 21:21:59,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1030329122, now seen corresponding path program 1 times [2022-12-05 21:21:59,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 21:21:59,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139062631] [2022-12-05 21:21:59,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 21:21:59,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 21:22:00,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 21:22:01,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 21:22:01,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 21:22:01,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139062631] [2022-12-05 21:22:01,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139062631] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 21:22:01,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 21:22:01,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 21:22:01,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604682732] [2022-12-05 21:22:01,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 21:22:01,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 21:22:01,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 21:22:01,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 21:22:01,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-12-05 21:22:01,421 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 44 [2022-12-05 21:22:01,422 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 44 transitions, 130 flow. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 21:22:01,422 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 21:22:01,422 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 44 [2022-12-05 21:22:01,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 21:22:07,045 INFO L130 PetriNetUnfolder]: 68867/86768 cut-off events. [2022-12-05 21:22:07,046 INFO L131 PetriNetUnfolder]: For 6627/6627 co-relation queries the response was YES. [2022-12-05 21:22:07,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178818 conditions, 86768 events. 68867/86768 cut-off events. For 6627/6627 co-relation queries the response was YES. Maximal size of possible extension queue 1977. Compared 421900 event pairs, 8446 based on Foata normal form. 2/86770 useless extension candidates. Maximal degree in co-relation 177045. Up to 51938 conditions per place. [2022-12-05 21:22:07,431 INFO L137 encePairwiseOnDemand]: 27/44 looper letters, 104 selfloop transitions, 28 changer transitions 51/183 dead transitions. [2022-12-05 21:22:07,431 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 183 transitions, 852 flow [2022-12-05 21:22:07,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-05 21:22:07,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-05 21:22:07,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 185 transitions. [2022-12-05 21:22:07,441 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4671717171717172 [2022-12-05 21:22:07,442 INFO L175 Difference]: Start difference. First operand has 66 places, 44 transitions, 130 flow. Second operand 9 states and 185 transitions. [2022-12-05 21:22:07,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 183 transitions, 852 flow [2022-12-05 21:22:07,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 183 transitions, 772 flow, removed 0 selfloop flow, removed 14 redundant places. [2022-12-05 21:22:07,884 INFO L231 Difference]: Finished difference. Result has 66 places, 77 transitions, 302 flow [2022-12-05 21:22:07,885 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=302, PETRI_PLACES=66, PETRI_TRANSITIONS=77} [2022-12-05 21:22:07,887 INFO L294 CegarLoopForPetriNet]: 66 programPoint places, 0 predicate places. [2022-12-05 21:22:07,887 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 77 transitions, 302 flow [2022-12-05 21:22:07,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 21:22:07,888 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 21:22:07,888 INFO L213 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] [2022-12-05 21:22:07,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 21:22:07,888 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 5 more)] === [2022-12-05 21:22:07,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 21:22:07,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1183584736, now seen corresponding path program 2 times [2022-12-05 21:22:07,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 21:22:07,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291092911] [2022-12-05 21:22:07,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 21:22:07,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 21:22:07,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 21:22:08,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 21:22:08,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 21:22:08,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291092911] [2022-12-05 21:22:08,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291092911] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 21:22:08,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 21:22:08,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-05 21:22:08,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474104095] [2022-12-05 21:22:08,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 21:22:08,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-05 21:22:08,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 21:22:08,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-05 21:22:08,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2022-12-05 21:22:08,962 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 44 [2022-12-05 21:22:08,962 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 77 transitions, 302 flow. Second operand has 15 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 21:22:08,962 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 21:22:08,962 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 44 [2022-12-05 21:22:08,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 21:22:18,942 INFO L130 PetriNetUnfolder]: 112662/143110 cut-off events. [2022-12-05 21:22:18,943 INFO L131 PetriNetUnfolder]: For 72944/72944 co-relation queries the response was YES. [2022-12-05 21:22:19,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 416166 conditions, 143110 events. 112662/143110 cut-off events. For 72944/72944 co-relation queries the response was YES. Maximal size of possible extension queue 3744. Compared 770037 event pairs, 10536 based on Foata normal form. 5/143115 useless extension candidates. Maximal degree in co-relation 416153. Up to 54555 conditions per place. [2022-12-05 21:22:19,606 INFO L137 encePairwiseOnDemand]: 27/44 looper letters, 225 selfloop transitions, 372 changer transitions 251/848 dead transitions. [2022-12-05 21:22:19,606 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 848 transitions, 4663 flow [2022-12-05 21:22:19,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-05 21:22:19,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-12-05 21:22:19,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 707 transitions. [2022-12-05 21:22:19,609 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5540752351097179 [2022-12-05 21:22:19,609 INFO L175 Difference]: Start difference. First operand has 66 places, 77 transitions, 302 flow. Second operand 29 states and 707 transitions. [2022-12-05 21:22:19,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 848 transitions, 4663 flow [2022-12-05 21:22:20,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 848 transitions, 4659 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-05 21:22:20,232 INFO L231 Difference]: Finished difference. Result has 96 places, 445 transitions, 2855 flow [2022-12-05 21:22:20,232 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=2855, PETRI_PLACES=96, PETRI_TRANSITIONS=445} [2022-12-05 21:22:20,233 INFO L294 CegarLoopForPetriNet]: 66 programPoint places, 30 predicate places. [2022-12-05 21:22:20,233 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 445 transitions, 2855 flow [2022-12-05 21:22:20,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 21:22:20,233 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 21:22:20,234 INFO L213 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] [2022-12-05 21:22:20,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 21:22:20,234 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 5 more)] === [2022-12-05 21:22:20,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 21:22:20,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1038012180, now seen corresponding path program 3 times [2022-12-05 21:22:20,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 21:22:20,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426779314] [2022-12-05 21:22:20,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 21:22:20,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 21:22:20,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 21:22:21,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 21:22:21,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 21:22:21,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426779314] [2022-12-05 21:22:21,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426779314] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 21:22:21,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 21:22:21,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-05 21:22:21,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635256889] [2022-12-05 21:22:21,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 21:22:21,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-05 21:22:21,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 21:22:21,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-05 21:22:21,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-12-05 21:22:21,084 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 44 [2022-12-05 21:22:21,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 445 transitions, 2855 flow. Second operand has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 21:22:21,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 21:22:21,085 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 44 [2022-12-05 21:22:21,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 21:22:33,143 INFO L130 PetriNetUnfolder]: 116078/147179 cut-off events. [2022-12-05 21:22:33,144 INFO L131 PetriNetUnfolder]: For 142242/142242 co-relation queries the response was YES. [2022-12-05 21:22:33,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 578833 conditions, 147179 events. 116078/147179 cut-off events. For 142242/142242 co-relation queries the response was YES. Maximal size of possible extension queue 3821. Compared 782524 event pairs, 16712 based on Foata normal form. 3/147182 useless extension candidates. Maximal degree in co-relation 557579. Up to 68043 conditions per place. [2022-12-05 21:22:34,007 INFO L137 encePairwiseOnDemand]: 27/44 looper letters, 244 selfloop transitions, 422 changer transitions 440/1106 dead transitions. [2022-12-05 21:22:34,007 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 1106 transitions, 7934 flow [2022-12-05 21:22:34,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-05 21:22:34,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-12-05 21:22:34,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 733 transitions. [2022-12-05 21:22:34,010 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5553030303030303 [2022-12-05 21:22:34,010 INFO L175 Difference]: Start difference. First operand has 96 places, 445 transitions, 2855 flow. Second operand 30 states and 733 transitions. [2022-12-05 21:22:34,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 1106 transitions, 7934 flow [2022-12-05 21:22:44,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 1106 transitions, 7025 flow, removed 414 selfloop flow, removed 6 redundant places. [2022-12-05 21:22:44,660 INFO L231 Difference]: Finished difference. Result has 138 places, 495 transitions, 4261 flow [2022-12-05 21:22:44,660 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=2300, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=377, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=4261, PETRI_PLACES=138, PETRI_TRANSITIONS=495} [2022-12-05 21:22:44,661 INFO L294 CegarLoopForPetriNet]: 66 programPoint places, 72 predicate places. [2022-12-05 21:22:44,661 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 495 transitions, 4261 flow [2022-12-05 21:22:44,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 21:22:44,662 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 21:22:44,662 INFO L213 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] [2022-12-05 21:22:44,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 21:22:44,662 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 5 more)] === [2022-12-05 21:22:44,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 21:22:44,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1647345294, now seen corresponding path program 4 times [2022-12-05 21:22:44,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 21:22:44,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093297118] [2022-12-05 21:22:44,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 21:22:44,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 21:22:44,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 21:22:44,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 21:22:44,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 21:22:44,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093297118] [2022-12-05 21:22:44,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093297118] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 21:22:44,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 21:22:44,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 21:22:44,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792012899] [2022-12-05 21:22:44,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 21:22:44,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 21:22:44,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 21:22:44,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 21:22:44,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-05 21:22:44,876 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 44 [2022-12-05 21:22:44,877 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 495 transitions, 4261 flow. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 21:22:44,877 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 21:22:44,877 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 44 [2022-12-05 21:22:44,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand