/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix008_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 21:32:36,960 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 21:32:36,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 21:32:37,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 21:32:37,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 21:32:37,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 21:32:37,009 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 21:32:37,012 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 21:32:37,016 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 21:32:37,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 21:32:37,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 21:32:37,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 21:32:37,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 21:32:37,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 21:32:37,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 21:32:37,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 21:32:37,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 21:32:37,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 21:32:37,034 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 21:32:37,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 21:32:37,039 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 21:32:37,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 21:32:37,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 21:32:37,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 21:32:37,049 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 21:32:37,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 21:32:37,050 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 21:32:37,051 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 21:32:37,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 21:32:37,052 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 21:32:37,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 21:32:37,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 21:32:37,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 21:32:37,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 21:32:37,057 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 21:32:37,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 21:32:37,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 21:32:37,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 21:32:37,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 21:32:37,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 21:32:37,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 21:32:37,060 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-12 21:32:37,084 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 21:32:37,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 21:32:37,086 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 21:32:37,086 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 21:32:37,086 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 21:32:37,087 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 21:32:37,087 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 21:32:37,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 21:32:37,088 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 21:32:37,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 21:32:37,088 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 21:32:37,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 21:32:37,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 21:32:37,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 21:32:37,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 21:32:37,089 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 21:32:37,089 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 21:32:37,090 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 21:32:37,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 21:32:37,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 21:32:37,090 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 21:32:37,090 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 21:32:37,090 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 21:32:37,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:32:37,091 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 21:32:37,091 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 21:32:37,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 21:32:37,091 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 21:32:37,092 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 21:32:37,092 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 21:32:37,092 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 21:32:37,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 21:32:37,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 21:32:37,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 21:32:37,464 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 21:32:37,465 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 21:32:37,466 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix008_tso.oepc.i [2022-12-12 21:32:38,668 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 21:32:38,970 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 21:32:38,970 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix008_tso.oepc.i [2022-12-12 21:32:38,985 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/558fdf9a1/f295760c47724735b5be92bcca9b9daf/FLAG35f5d7913 [2022-12-12 21:32:38,998 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/558fdf9a1/f295760c47724735b5be92bcca9b9daf [2022-12-12 21:32:39,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 21:32:39,001 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 21:32:39,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 21:32:39,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 21:32:39,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 21:32:39,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:32:38" (1/1) ... [2022-12-12 21:32:39,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@378853b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:32:39, skipping insertion in model container [2022-12-12 21:32:39,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:32:38" (1/1) ... [2022-12-12 21:32:39,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 21:32:39,054 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 21:32:39,194 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix008_tso.oepc.i[949,962] [2022-12-12 21:32:39,350 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,350 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,351 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,351 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,351 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,352 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,352 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,353 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,355 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,355 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,361 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,362 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,362 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,396 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,396 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,398 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,398 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,398 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,404 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,411 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,429 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,430 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,430 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,430 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,433 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,433 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,433 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,444 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,444 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,449 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,450 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:32:39,459 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 21:32:39,471 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix008_tso.oepc.i[949,962] [2022-12-12 21:32:39,516 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,521 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,521 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,521 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,524 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,524 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,534 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,534 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,557 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,557 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,557 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,562 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,562 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:32:39,568 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:32:39,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:32:39,613 INFO L208 MainTranslator]: Completed translation [2022-12-12 21:32:39,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:32:39 WrapperNode [2022-12-12 21:32:39,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 21:32:39,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 21:32:39,616 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 21:32:39,616 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 21:32:39,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:32:39" (1/1) ... [2022-12-12 21:32:39,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:32:39" (1/1) ... [2022-12-12 21:32:39,706 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 274 [2022-12-12 21:32:39,707 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 21:32:39,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 21:32:39,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 21:32:39,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 21:32:39,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:32:39" (1/1) ... [2022-12-12 21:32:39,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:32:39" (1/1) ... [2022-12-12 21:32:39,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:32:39" (1/1) ... [2022-12-12 21:32:39,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:32:39" (1/1) ... [2022-12-12 21:32:39,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:32:39" (1/1) ... [2022-12-12 21:32:39,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:32:39" (1/1) ... [2022-12-12 21:32:39,772 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:32:39" (1/1) ... [2022-12-12 21:32:39,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:32:39" (1/1) ... [2022-12-12 21:32:39,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 21:32:39,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 21:32:39,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 21:32:39,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 21:32:39,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:32:39" (1/1) ... [2022-12-12 21:32:39,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:32:39,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 21:32:39,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-12 21:32:39,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 21:32:39,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 21:32:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 21:32:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 21:32:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 21:32:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 21:32:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 21:32:39,865 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 21:32:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 21:32:39,865 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 21:32:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-12 21:32:39,866 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-12 21:32:39,867 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-12 21:32:39,867 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-12 21:32:39,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 21:32:39,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 21:32:39,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 21:32:39,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 21:32:39,868 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 21:32:40,037 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 21:32:40,039 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 21:32:40,550 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 21:32:40,781 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 21:32:40,781 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 21:32:40,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:32:40 BoogieIcfgContainer [2022-12-12 21:32:40,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 21:32:40,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 21:32:40,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 21:32:40,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 21:32:40,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 09:32:38" (1/3) ... [2022-12-12 21:32:40,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66669d9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:32:40, skipping insertion in model container [2022-12-12 21:32:40,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:32:39" (2/3) ... [2022-12-12 21:32:40,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66669d9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:32:40, skipping insertion in model container [2022-12-12 21:32:40,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:32:40" (3/3) ... [2022-12-12 21:32:40,794 INFO L112 eAbstractionObserver]: Analyzing ICFG mix008_tso.oepc.i [2022-12-12 21:32:40,811 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 21:32:40,811 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-12 21:32:40,811 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 21:32:40,884 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 21:32:40,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 150 transitions, 320 flow [2022-12-12 21:32:41,001 INFO L130 PetriNetUnfolder]: 2/146 cut-off events. [2022-12-12 21:32:41,002 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:32:41,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 146 events. 2/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 73 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2022-12-12 21:32:41,013 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 150 transitions, 320 flow [2022-12-12 21:32:41,022 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 157 places, 146 transitions, 304 flow [2022-12-12 21:32:41,026 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 21:32:41,043 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 146 transitions, 304 flow [2022-12-12 21:32:41,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 146 transitions, 304 flow [2022-12-12 21:32:41,101 INFO L130 PetriNetUnfolder]: 2/146 cut-off events. [2022-12-12 21:32:41,101 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:32:41,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 146 events. 2/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 73 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2022-12-12 21:32:41,109 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 146 transitions, 304 flow [2022-12-12 21:32:41,109 INFO L226 LiptonReduction]: Number of co-enabled transitions 3210 [2022-12-12 21:32:53,446 INFO L241 LiptonReduction]: Total number of compositions: 119 [2022-12-12 21:32:53,467 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 21:32:53,475 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;@57a89c3f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 21:32:53,475 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-12-12 21:32:53,483 INFO L130 PetriNetUnfolder]: 0/16 cut-off events. [2022-12-12 21:32:53,483 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:32:53,483 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:32:53,484 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:32:53,484 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-12-12 21:32:53,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:32:53,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1952508058, now seen corresponding path program 1 times [2022-12-12 21:32:53,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:32:53,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778087849] [2022-12-12 21:32:53,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:32:53,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:32:53,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:32:53,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:32:53,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:32:53,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778087849] [2022-12-12 21:32:53,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778087849] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:32:53,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:32:53,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 21:32:53,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711034739] [2022-12-12 21:32:53,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:32:53,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:32:53,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:32:53,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:32:53,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:32:53,936 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 74 [2022-12-12 21:32:53,938 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 74 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:32:53,938 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:32:53,941 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 74 [2022-12-12 21:32:53,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:33:08,163 INFO L130 PetriNetUnfolder]: 90683/123531 cut-off events. [2022-12-12 21:33:08,163 INFO L131 PetriNetUnfolder]: For 136/136 co-relation queries the response was YES. [2022-12-12 21:33:08,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242879 conditions, 123531 events. 90683/123531 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 5624. Compared 903703 event pairs, 9551 based on Foata normal form. 0/74460 useless extension candidates. Maximal degree in co-relation 242867. Up to 105373 conditions per place. [2022-12-12 21:33:08,662 INFO L137 encePairwiseOnDemand]: 69/74 looper letters, 94 selfloop transitions, 2 changer transitions 8/117 dead transitions. [2022-12-12 21:33:08,663 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 117 transitions, 457 flow [2022-12-12 21:33:08,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:33:08,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:33:08,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 148 transitions. [2022-12-12 21:33:08,676 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2022-12-12 21:33:08,681 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, 0 predicate places. [2022-12-12 21:33:08,681 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 117 transitions, 457 flow [2022-12-12 21:33:08,908 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 109 transitions, 425 flow [2022-12-12 21:33:08,910 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 109 transitions, 425 flow [2022-12-12 21:33:08,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:33:08,910 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:33:08,910 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:33:08,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 21:33:08,911 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-12-12 21:33:08,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:33:08,918 INFO L85 PathProgramCache]: Analyzing trace with hash 540574986, now seen corresponding path program 1 times [2022-12-12 21:33:08,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:33:08,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636164217] [2022-12-12 21:33:08,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:33:08,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:33:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:33:09,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:33:09,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:33:09,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636164217] [2022-12-12 21:33:09,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636164217] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:33:09,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:33:09,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 21:33:09,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766669639] [2022-12-12 21:33:09,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:33:09,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:33:09,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:33:09,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:33:09,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:33:09,115 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 74 [2022-12-12 21:33:09,115 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 109 transitions, 425 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:33:09,116 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:33:09,116 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 74 [2022-12-12 21:33:09,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:33:20,546 INFO L130 PetriNetUnfolder]: 76119/108481 cut-off events. [2022-12-12 21:33:20,546 INFO L131 PetriNetUnfolder]: For 4082/4092 co-relation queries the response was YES. [2022-12-12 21:33:20,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308754 conditions, 108481 events. 76119/108481 cut-off events. For 4082/4092 co-relation queries the response was YES. Maximal size of possible extension queue 5294. Compared 842375 event pairs, 979 based on Foata normal form. 0/70266 useless extension candidates. Maximal degree in co-relation 308739. Up to 88501 conditions per place. [2022-12-12 21:33:20,869 INFO L137 encePairwiseOnDemand]: 71/74 looper letters, 69 selfloop transitions, 3 changer transitions 96/181 dead transitions. [2022-12-12 21:33:20,869 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 181 transitions, 1049 flow [2022-12-12 21:33:20,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:33:20,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:33:20,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 133 transitions. [2022-12-12 21:33:20,871 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5990990990990991 [2022-12-12 21:33:20,872 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, -3 predicate places. [2022-12-12 21:33:20,872 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 181 transitions, 1049 flow [2022-12-12 21:33:20,997 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 85 transitions, 473 flow [2022-12-12 21:33:20,997 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 85 transitions, 473 flow [2022-12-12 21:33:20,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:33:20,997 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:33:20,997 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:33:20,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 21:33:20,998 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-12-12 21:33:20,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:33:20,998 INFO L85 PathProgramCache]: Analyzing trace with hash -198433648, now seen corresponding path program 1 times [2022-12-12 21:33:20,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:33:20,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391633187] [2022-12-12 21:33:20,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:33:20,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:33:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:33:21,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:33:21,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:33:21,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391633187] [2022-12-12 21:33:21,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391633187] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:33:21,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:33:21,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:33:21,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398866231] [2022-12-12 21:33:21,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:33:21,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:33:21,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:33:21,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:33:21,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:33:21,608 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 74 [2022-12-12 21:33:21,609 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 85 transitions, 473 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:33:21,609 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:33:21,609 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 74 [2022-12-12 21:33:21,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:33:25,729 INFO L130 PetriNetUnfolder]: 28807/40995 cut-off events. [2022-12-12 21:33:25,730 INFO L131 PetriNetUnfolder]: For 17877/17877 co-relation queries the response was YES. [2022-12-12 21:33:25,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149486 conditions, 40995 events. 28807/40995 cut-off events. For 17877/17877 co-relation queries the response was YES. Maximal size of possible extension queue 1323. Compared 258267 event pairs, 1066 based on Foata normal form. 980/35076 useless extension candidates. Maximal degree in co-relation 149468. Up to 30631 conditions per place. [2022-12-12 21:33:26,030 INFO L137 encePairwiseOnDemand]: 61/74 looper letters, 153 selfloop transitions, 32 changer transitions 0/195 dead transitions. [2022-12-12 21:33:26,030 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 195 transitions, 1508 flow [2022-12-12 21:33:26,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 21:33:26,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 21:33:26,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2022-12-12 21:33:26,034 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.41216216216216217 [2022-12-12 21:33:26,036 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, -24 predicate places. [2022-12-12 21:33:26,037 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 195 transitions, 1508 flow [2022-12-12 21:33:26,228 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 195 transitions, 1508 flow [2022-12-12 21:33:26,228 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 195 transitions, 1508 flow [2022-12-12 21:33:26,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:33:26,229 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:33:26,229 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:33:26,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 21:33:26,232 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-12-12 21:33:26,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:33:26,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1856476158, now seen corresponding path program 1 times [2022-12-12 21:33:26,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:33:26,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607351887] [2022-12-12 21:33:26,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:33:26,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:33:26,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:33:27,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:33:27,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:33:27,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607351887] [2022-12-12 21:33:27,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607351887] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:33:27,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:33:27,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:33:27,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002418739] [2022-12-12 21:33:27,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:33:27,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:33:27,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:33:27,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:33:27,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:33:27,101 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 74 [2022-12-12 21:33:27,102 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 195 transitions, 1508 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:33:27,102 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:33:27,102 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 74 [2022-12-12 21:33:27,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:33:31,614 INFO L130 PetriNetUnfolder]: 26961/38398 cut-off events. [2022-12-12 21:33:31,614 INFO L131 PetriNetUnfolder]: For 16165/16165 co-relation queries the response was YES. [2022-12-12 21:33:31,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176359 conditions, 38398 events. 26961/38398 cut-off events. For 16165/16165 co-relation queries the response was YES. Maximal size of possible extension queue 1212. Compared 237526 event pairs, 325 based on Foata normal form. 392/32243 useless extension candidates. Maximal degree in co-relation 176338. Up to 29240 conditions per place. [2022-12-12 21:33:32,007 INFO L137 encePairwiseOnDemand]: 62/74 looper letters, 231 selfloop transitions, 22 changer transitions 0/263 dead transitions. [2022-12-12 21:33:32,007 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 263 transitions, 2539 flow [2022-12-12 21:33:32,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 21:33:32,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 21:33:32,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 113 transitions. [2022-12-12 21:33:32,009 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.38175675675675674 [2022-12-12 21:33:32,010 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, -21 predicate places. [2022-12-12 21:33:32,010 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 263 transitions, 2539 flow [2022-12-12 21:33:32,242 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 263 transitions, 2539 flow [2022-12-12 21:33:32,243 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 263 transitions, 2539 flow [2022-12-12 21:33:32,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:33:32,243 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:33:32,243 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:33:32,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 21:33:32,244 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-12-12 21:33:32,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:33:32,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1662242452, now seen corresponding path program 1 times [2022-12-12 21:33:32,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:33:32,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876796645] [2022-12-12 21:33:32,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:33:32,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:33:32,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:33:32,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:33:32,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:33:32,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876796645] [2022-12-12 21:33:32,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876796645] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:33:32,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:33:32,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:33:32,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91648506] [2022-12-12 21:33:32,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:33:32,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:33:32,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:33:32,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:33:32,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:33:32,794 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 74 [2022-12-12 21:33:32,794 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 263 transitions, 2539 flow. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:33:32,794 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:33:32,794 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 74 [2022-12-12 21:33:32,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:33:36,766 INFO L130 PetriNetUnfolder]: 25667/36484 cut-off events. [2022-12-12 21:33:36,767 INFO L131 PetriNetUnfolder]: For 14880/14880 co-relation queries the response was YES. [2022-12-12 21:33:36,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202363 conditions, 36484 events. 25667/36484 cut-off events. For 14880/14880 co-relation queries the response was YES. Maximal size of possible extension queue 1119. Compared 222025 event pairs, 623 based on Foata normal form. 280/30493 useless extension candidates. Maximal degree in co-relation 202339. Up to 27646 conditions per place. [2022-12-12 21:33:37,026 INFO L137 encePairwiseOnDemand]: 61/74 looper letters, 309 selfloop transitions, 32 changer transitions 0/351 dead transitions. [2022-12-12 21:33:37,026 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 351 transitions, 4069 flow [2022-12-12 21:33:37,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 21:33:37,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 21:33:37,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 109 transitions. [2022-12-12 21:33:37,028 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.36824324324324326 [2022-12-12 21:33:37,031 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, -18 predicate places. [2022-12-12 21:33:37,032 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 351 transitions, 4069 flow [2022-12-12 21:33:37,231 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 351 transitions, 4069 flow [2022-12-12 21:33:37,232 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 351 transitions, 4069 flow [2022-12-12 21:33:37,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:33:37,232 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:33:37,232 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:33:37,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 21:33:37,232 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-12-12 21:33:37,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:33:37,233 INFO L85 PathProgramCache]: Analyzing trace with hash 312863197, now seen corresponding path program 1 times [2022-12-12 21:33:37,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:33:37,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432526592] [2022-12-12 21:33:37,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:33:37,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:33:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:33:37,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:33:37,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:33:37,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432526592] [2022-12-12 21:33:37,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432526592] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:33:37,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:33:37,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 21:33:37,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342288334] [2022-12-12 21:33:37,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:33:37,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:33:37,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:33:37,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:33:37,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:33:37,626 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 74 [2022-12-12 21:33:37,626 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 351 transitions, 4069 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:33:37,626 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:33:37,627 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 74 [2022-12-12 21:33:37,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:33:45,848 INFO L130 PetriNetUnfolder]: 54299/74361 cut-off events. [2022-12-12 21:33:45,848 INFO L131 PetriNetUnfolder]: For 148398/150044 co-relation queries the response was YES. [2022-12-12 21:33:46,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 450434 conditions, 74361 events. 54299/74361 cut-off events. For 148398/150044 co-relation queries the response was YES. Maximal size of possible extension queue 2452. Compared 464093 event pairs, 7127 based on Foata normal form. 4743/67348 useless extension candidates. Maximal degree in co-relation 450407. Up to 52899 conditions per place. [2022-12-12 21:33:46,528 INFO L137 encePairwiseOnDemand]: 59/74 looper letters, 428 selfloop transitions, 113 changer transitions 469/1038 dead transitions. [2022-12-12 21:33:46,528 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 1038 transitions, 14243 flow [2022-12-12 21:33:46,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 21:33:46,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 21:33:46,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 153 transitions. [2022-12-12 21:33:46,531 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4135135135135135 [2022-12-12 21:33:46,532 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, -14 predicate places. [2022-12-12 21:33:46,532 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 1038 transitions, 14243 flow [2022-12-12 21:33:46,825 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 569 transitions, 7757 flow [2022-12-12 21:33:46,826 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 569 transitions, 7757 flow [2022-12-12 21:33:46,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:33:46,826 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:33:46,826 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:33:46,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 21:33:46,826 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-12-12 21:33:46,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:33:46,827 INFO L85 PathProgramCache]: Analyzing trace with hash -2072917065, now seen corresponding path program 1 times [2022-12-12 21:33:46,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:33:46,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720927227] [2022-12-12 21:33:46,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:33:46,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:33:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:33:47,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:33:47,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:33:47,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720927227] [2022-12-12 21:33:47,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720927227] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:33:47,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:33:47,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 21:33:47,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89340292] [2022-12-12 21:33:47,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:33:47,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:33:47,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:33:47,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:33:47,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:33:47,390 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 74 [2022-12-12 21:33:47,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 569 transitions, 7757 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:33:47,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:33:47,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 74 [2022-12-12 21:33:47,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:33:57,077 INFO L130 PetriNetUnfolder]: 57722/78755 cut-off events. [2022-12-12 21:33:57,077 INFO L131 PetriNetUnfolder]: For 163837/165655 co-relation queries the response was YES. [2022-12-12 21:33:57,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 544251 conditions, 78755 events. 57722/78755 cut-off events. For 163837/165655 co-relation queries the response was YES. Maximal size of possible extension queue 2343. Compared 484362 event pairs, 9420 based on Foata normal form. 1655/67867 useless extension candidates. Maximal degree in co-relation 544221. Up to 71171 conditions per place. [2022-12-12 21:33:57,539 INFO L137 encePairwiseOnDemand]: 68/74 looper letters, 563 selfloop transitions, 48 changer transitions 139/764 dead transitions. [2022-12-12 21:33:57,540 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 764 transitions, 11969 flow [2022-12-12 21:33:57,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 21:33:57,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 21:33:57,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 110 transitions. [2022-12-12 21:33:57,541 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3716216216216216 [2022-12-12 21:33:57,542 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, -13 predicate places. [2022-12-12 21:33:57,542 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 764 transitions, 11969 flow [2022-12-12 21:33:57,941 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 625 transitions, 9775 flow [2022-12-12 21:33:57,941 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 625 transitions, 9775 flow [2022-12-12 21:33:57,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:33:57,941 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:33:57,941 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:33:57,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 21:33:57,942 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-12-12 21:33:57,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:33:57,942 INFO L85 PathProgramCache]: Analyzing trace with hash -2100835491, now seen corresponding path program 1 times [2022-12-12 21:33:57,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:33:57,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819818484] [2022-12-12 21:33:57,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:33:57,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:33:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:33:58,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:33:58,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:33:58,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819818484] [2022-12-12 21:33:58,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819818484] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:33:58,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:33:58,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 21:33:58,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463326799] [2022-12-12 21:33:58,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:33:58,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 21:33:58,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:33:58,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 21:33:58,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 21:33:58,258 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 74 [2022-12-12 21:33:58,258 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 625 transitions, 9775 flow. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:33:58,258 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:33:58,258 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 74 [2022-12-12 21:33:58,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand