/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-NoLbe.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/rfi000_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 23:40:29,462 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 23:40:29,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 23:40:29,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 23:40:29,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 23:40:29,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 23:40:29,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 23:40:29,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 23:40:29,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 23:40:29,504 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 23:40:29,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 23:40:29,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 23:40:29,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 23:40:29,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 23:40:29,510 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 23:40:29,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 23:40:29,512 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 23:40:29,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 23:40:29,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 23:40:29,517 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 23:40:29,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 23:40:29,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 23:40:29,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 23:40:29,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 23:40:29,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 23:40:29,526 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 23:40:29,526 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 23:40:29,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 23:40:29,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 23:40:29,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 23:40:29,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 23:40:29,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 23:40:29,530 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 23:40:29,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 23:40:29,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 23:40:29,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 23:40:29,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 23:40:29,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 23:40:29,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 23:40:29,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 23:40:29,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 23:40:29,534 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-NoLbe.epf [2022-12-11 23:40:29,557 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 23:40:29,557 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 23:40:29,558 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 23:40:29,558 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 23:40:29,559 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 23:40:29,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 23:40:29,559 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 23:40:29,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 23:40:29,560 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 23:40:29,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 23:40:29,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 23:40:29,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 23:40:29,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 23:40:29,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 23:40:29,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 23:40:29,561 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 23:40:29,561 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 23:40:29,561 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 23:40:29,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 23:40:29,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 23:40:29,562 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 23:40:29,562 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 23:40:29,562 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 23:40:29,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 23:40:29,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 23:40:29,562 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 23:40:29,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 23:40:29,562 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 23:40:29,562 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 23:40:29,562 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 23:40:29,563 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 23:40:29,563 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-11 23:40:29,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 23:40:29,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 23:40:29,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 23:40:29,848 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 23:40:29,848 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 23:40:29,849 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi000_tso.i [2022-12-11 23:40:30,887 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 23:40:31,145 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 23:40:31,145 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi000_tso.i [2022-12-11 23:40:31,180 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4519f02e7/036d83fc0ae645b1809d716ae265b7c2/FLAG0e82c8059 [2022-12-11 23:40:31,195 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4519f02e7/036d83fc0ae645b1809d716ae265b7c2 [2022-12-11 23:40:31,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 23:40:31,198 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 23:40:31,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 23:40:31,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 23:40:31,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 23:40:31,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 11:40:31" (1/1) ... [2022-12-11 23:40:31,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5649bf57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:40:31, skipping insertion in model container [2022-12-11 23:40:31,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 11:40:31" (1/1) ... [2022-12-11 23:40:31,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 23:40:31,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 23:40:31,403 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/rfi000_tso.i[944,957] [2022-12-11 23:40:31,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:40:31,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:40:31,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:40:31,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:40:31,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:40:31,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:40:31,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:40:31,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:40:31,527 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:40:31,527 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:40:31,527 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:40:31,529 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:40:31,529 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:40:31,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:40:31,540 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:40:31,550 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:40:31,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:40:31,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:40:31,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:40:31,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:40:31,557 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:40:31,557 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:40:31,557 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:40:31,559 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:40:31,559 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:40:31,582 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:40:31,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 23:40:31,591 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 23:40:31,603 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/rfi000_tso.i[944,957] [2022-12-11 23:40:31,614 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:40:31,614 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:40:31,614 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:40:31,615 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:40:31,615 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:40:31,616 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:40:31,616 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:40:31,619 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:40:31,619 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:40:31,620 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:40:31,620 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:40:31,620 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:40:31,620 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:40:31,623 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:40:31,624 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:40:31,627 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:40:31,627 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:40:31,628 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:40:31,628 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:40:31,628 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:40:31,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:40:31,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:40:31,631 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:40:31,632 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:40:31,632 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:40:31,635 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:40:31,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 23:40:31,660 INFO L208 MainTranslator]: Completed translation [2022-12-11 23:40:31,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:40:31 WrapperNode [2022-12-11 23:40:31,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 23:40:31,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 23:40:31,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 23:40:31,662 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 23:40:31,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:40:31" (1/1) ... [2022-12-11 23:40:31,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:40:31" (1/1) ... [2022-12-11 23:40:31,720 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 164 [2022-12-11 23:40:31,720 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 23:40:31,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 23:40:31,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 23:40:31,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 23:40:31,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:40:31" (1/1) ... [2022-12-11 23:40:31,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:40:31" (1/1) ... [2022-12-11 23:40:31,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:40:31" (1/1) ... [2022-12-11 23:40:31,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:40:31" (1/1) ... [2022-12-11 23:40:31,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:40:31" (1/1) ... [2022-12-11 23:40:31,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:40:31" (1/1) ... [2022-12-11 23:40:31,739 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:40:31" (1/1) ... [2022-12-11 23:40:31,745 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:40:31" (1/1) ... [2022-12-11 23:40:31,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 23:40:31,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 23:40:31,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 23:40:31,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 23:40:31,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:40:31" (1/1) ... [2022-12-11 23:40:31,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 23:40:31,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 23:40:31,828 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) [2022-12-11 23:40:31,846 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 [2022-12-11 23:40:31,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 23:40:31,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 23:40:31,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 23:40:31,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 23:40:31,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 23:40:31,858 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-11 23:40:31,859 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-11 23:40:31,859 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-11 23:40:31,859 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-11 23:40:31,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 23:40:31,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 23:40:31,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 23:40:31,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 23:40:31,861 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 23:40:31,947 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 23:40:31,948 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 23:40:32,284 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 23:40:32,428 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 23:40:32,428 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 23:40:32,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 11:40:32 BoogieIcfgContainer [2022-12-11 23:40:32,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 23:40:32,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 23:40:32,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 23:40:32,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 23:40:32,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 11:40:31" (1/3) ... [2022-12-11 23:40:32,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1353cb3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 11:40:32, skipping insertion in model container [2022-12-11 23:40:32,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:40:31" (2/3) ... [2022-12-11 23:40:32,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1353cb3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 11:40:32, skipping insertion in model container [2022-12-11 23:40:32,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 11:40:32" (3/3) ... [2022-12-11 23:40:32,435 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi000_tso.i [2022-12-11 23:40:32,447 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 23:40:32,447 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-11 23:40:32,447 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 23:40:32,479 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-11 23:40:32,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 90 transitions, 190 flow [2022-12-11 23:40:32,551 INFO L130 PetriNetUnfolder]: 2/88 cut-off events. [2022-12-11 23:40:32,551 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 23:40:32,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2022-12-11 23:40:32,555 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 90 transitions, 190 flow [2022-12-11 23:40:32,558 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 88 transitions, 182 flow [2022-12-11 23:40:32,570 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 23:40:32,575 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;@6d1848c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 23:40:32,576 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-11 23:40:32,594 INFO L130 PetriNetUnfolder]: 0/55 cut-off events. [2022-12-11 23:40:32,594 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 23:40:32,594 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:40:32,595 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:40:32,596 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 23:40:32,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:40:32,599 INFO L85 PathProgramCache]: Analyzing trace with hash -234242816, now seen corresponding path program 1 times [2022-12-11 23:40:32,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:40:32,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641185093] [2022-12-11 23:40:32,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:40:32,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:40:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:40:33,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:40:33,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:40:33,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641185093] [2022-12-11 23:40:33,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641185093] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:40:33,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:40:33,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-11 23:40:33,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911349554] [2022-12-11 23:40:33,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:40:33,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-11 23:40:33,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:40:33,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-11 23:40:33,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-11 23:40:33,081 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 90 [2022-12-11 23:40:33,086 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 88 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2022-12-11 23:40:33,086 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:40:33,087 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 90 [2022-12-11 23:40:33,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:40:33,209 INFO L130 PetriNetUnfolder]: 31/172 cut-off events. [2022-12-11 23:40:33,209 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-11 23:40:33,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 172 events. 31/172 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 528 event pairs, 3 based on Foata normal form. 13/175 useless extension candidates. Maximal degree in co-relation 201. Up to 53 conditions per place. [2022-12-11 23:40:33,216 INFO L137 encePairwiseOnDemand]: 85/90 looper letters, 11 selfloop transitions, 2 changer transitions 0/87 dead transitions. [2022-12-11 23:40:33,217 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 87 transitions, 206 flow [2022-12-11 23:40:33,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-11 23:40:33,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-11 23:40:33,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 246 transitions. [2022-12-11 23:40:33,228 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2022-12-11 23:40:33,231 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 0 predicate places. [2022-12-11 23:40:33,231 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 87 transitions, 206 flow [2022-12-11 23:40:33,233 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 87 transitions, 206 flow [2022-12-11 23:40:33,234 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 87 transitions, 206 flow [2022-12-11 23:40:33,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2022-12-11 23:40:33,234 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:40:33,235 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:40:33,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 23:40:33,235 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 23:40:33,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:40:33,236 INFO L85 PathProgramCache]: Analyzing trace with hash 313066395, now seen corresponding path program 1 times [2022-12-11 23:40:33,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:40:33,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301730577] [2022-12-11 23:40:33,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:40:33,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:40:33,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:40:34,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:40:34,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:40:34,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301730577] [2022-12-11 23:40:34,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301730577] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:40:34,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:40:34,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:40:34,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727453999] [2022-12-11 23:40:34,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:40:34,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:40:34,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:40:34,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:40:34,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:40:34,162 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 90 [2022-12-11 23:40:34,163 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 87 transitions, 206 flow. Second operand has 7 states, 7 states have (on average 60.714285714285715) internal successors, (425), 7 states have internal predecessors, (425), 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) [2022-12-11 23:40:34,163 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:40:34,163 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 90 [2022-12-11 23:40:34,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:40:34,773 INFO L130 PetriNetUnfolder]: 395/1028 cut-off events. [2022-12-11 23:40:34,774 INFO L131 PetriNetUnfolder]: For 186/535 co-relation queries the response was YES. [2022-12-11 23:40:34,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2078 conditions, 1028 events. 395/1028 cut-off events. For 186/535 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 6099 event pairs, 76 based on Foata normal form. 2/992 useless extension candidates. Maximal degree in co-relation 2020. Up to 310 conditions per place. [2022-12-11 23:40:34,778 INFO L137 encePairwiseOnDemand]: 79/90 looper letters, 34 selfloop transitions, 7 changer transitions 69/159 dead transitions. [2022-12-11 23:40:34,778 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 159 transitions, 632 flow [2022-12-11 23:40:34,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 23:40:34,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 23:40:34,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 854 transitions. [2022-12-11 23:40:34,782 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7299145299145299 [2022-12-11 23:40:34,783 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 12 predicate places. [2022-12-11 23:40:34,783 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 159 transitions, 632 flow [2022-12-11 23:40:34,785 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 90 transitions, 304 flow [2022-12-11 23:40:34,786 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 90 transitions, 304 flow [2022-12-11 23:40:34,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 60.714285714285715) internal successors, (425), 7 states have internal predecessors, (425), 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) [2022-12-11 23:40:34,786 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:40:34,786 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:40:34,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 23:40:34,786 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 23:40:34,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:40:34,787 INFO L85 PathProgramCache]: Analyzing trace with hash -576424391, now seen corresponding path program 1 times [2022-12-11 23:40:34,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:40:34,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845575082] [2022-12-11 23:40:34,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:40:34,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:40:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:40:35,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:40:35,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:40:35,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845575082] [2022-12-11 23:40:35,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845575082] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:40:35,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:40:35,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:40:35,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852930226] [2022-12-11 23:40:35,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:40:35,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:40:35,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:40:35,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:40:35,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:40:35,479 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 90 [2022-12-11 23:40:35,480 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 90 transitions, 304 flow. Second operand has 7 states, 7 states have (on average 61.142857142857146) internal successors, (428), 7 states have internal predecessors, (428), 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) [2022-12-11 23:40:35,480 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:40:35,480 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 90 [2022-12-11 23:40:35,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:40:35,890 INFO L130 PetriNetUnfolder]: 203/501 cut-off events. [2022-12-11 23:40:35,890 INFO L131 PetriNetUnfolder]: For 184/1282 co-relation queries the response was YES. [2022-12-11 23:40:35,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1490 conditions, 501 events. 203/501 cut-off events. For 184/1282 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2255 event pairs, 44 based on Foata normal form. 21/501 useless extension candidates. Maximal degree in co-relation 1419. Up to 273 conditions per place. [2022-12-11 23:40:35,892 INFO L137 encePairwiseOnDemand]: 79/90 looper letters, 39 selfloop transitions, 8 changer transitions 49/145 dead transitions. [2022-12-11 23:40:35,892 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 145 transitions, 774 flow [2022-12-11 23:40:35,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 23:40:35,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 23:40:35,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 835 transitions. [2022-12-11 23:40:35,894 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7136752136752137 [2022-12-11 23:40:35,894 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 7 predicate places. [2022-12-11 23:40:35,895 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 145 transitions, 774 flow [2022-12-11 23:40:35,896 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 96 transitions, 430 flow [2022-12-11 23:40:35,896 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 96 transitions, 430 flow [2022-12-11 23:40:35,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 61.142857142857146) internal successors, (428), 7 states have internal predecessors, (428), 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) [2022-12-11 23:40:35,897 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:40:35,897 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:40:35,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 23:40:35,897 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 23:40:35,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:40:35,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1198785428, now seen corresponding path program 1 times [2022-12-11 23:40:35,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:40:35,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769126962] [2022-12-11 23:40:35,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:40:35,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:40:35,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:40:36,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:40:36,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:40:36,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769126962] [2022-12-11 23:40:36,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769126962] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:40:36,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:40:36,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-11 23:40:36,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294080667] [2022-12-11 23:40:36,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:40:36,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-11 23:40:36,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:40:36,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-11 23:40:36,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-12-11 23:40:36,830 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 90 [2022-12-11 23:40:36,830 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 96 transitions, 430 flow. Second operand has 11 states, 11 states have (on average 64.72727272727273) internal successors, (712), 11 states have internal predecessors, (712), 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) [2022-12-11 23:40:36,830 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:40:36,831 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 90 [2022-12-11 23:40:36,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:40:37,125 INFO L130 PetriNetUnfolder]: 152/418 cut-off events. [2022-12-11 23:40:37,127 INFO L131 PetriNetUnfolder]: For 458/2112 co-relation queries the response was YES. [2022-12-11 23:40:37,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1463 conditions, 418 events. 152/418 cut-off events. For 458/2112 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1746 event pairs, 32 based on Foata normal form. 24/421 useless extension candidates. Maximal degree in co-relation 1382. Up to 200 conditions per place. [2022-12-11 23:40:37,129 INFO L137 encePairwiseOnDemand]: 78/90 looper letters, 40 selfloop transitions, 11 changer transitions 31/138 dead transitions. [2022-12-11 23:40:37,130 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 138 transitions, 899 flow [2022-12-11 23:40:37,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-11 23:40:37,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-11 23:40:37,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 941 transitions. [2022-12-11 23:40:37,133 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7468253968253968 [2022-12-11 23:40:37,134 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 11 predicate places. [2022-12-11 23:40:37,134 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 138 transitions, 899 flow [2022-12-11 23:40:37,137 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 107 transitions, 619 flow [2022-12-11 23:40:37,138 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 107 transitions, 619 flow [2022-12-11 23:40:37,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 64.72727272727273) internal successors, (712), 11 states have internal predecessors, (712), 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) [2022-12-11 23:40:37,138 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:40:37,138 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:40:37,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 23:40:37,139 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 23:40:37,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:40:37,139 INFO L85 PathProgramCache]: Analyzing trace with hash -114819208, now seen corresponding path program 1 times [2022-12-11 23:40:37,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:40:37,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315037301] [2022-12-11 23:40:37,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:40:37,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:40:37,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:40:38,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:40:38,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:40:38,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315037301] [2022-12-11 23:40:38,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315037301] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:40:38,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:40:38,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-11 23:40:38,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009361508] [2022-12-11 23:40:38,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:40:38,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-11 23:40:38,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:40:38,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-11 23:40:38,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-12-11 23:40:38,170 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 90 [2022-12-11 23:40:38,171 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 107 transitions, 619 flow. Second operand has 15 states, 15 states have (on average 60.46666666666667) internal successors, (907), 15 states have internal predecessors, (907), 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) [2022-12-11 23:40:38,171 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:40:38,171 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 90 [2022-12-11 23:40:38,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:40:38,839 INFO L130 PetriNetUnfolder]: 296/711 cut-off events. [2022-12-11 23:40:38,840 INFO L131 PetriNetUnfolder]: For 1576/2271 co-relation queries the response was YES. [2022-12-11 23:40:38,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2645 conditions, 711 events. 296/711 cut-off events. For 1576/2271 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3559 event pairs, 60 based on Foata normal form. 63/746 useless extension candidates. Maximal degree in co-relation 2553. Up to 343 conditions per place. [2022-12-11 23:40:38,844 INFO L137 encePairwiseOnDemand]: 74/90 looper letters, 71 selfloop transitions, 18 changer transitions 47/188 dead transitions. [2022-12-11 23:40:38,844 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 188 transitions, 1438 flow [2022-12-11 23:40:38,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-11 23:40:38,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-12-11 23:40:38,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 1525 transitions. [2022-12-11 23:40:38,847 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7060185185185185 [2022-12-11 23:40:38,847 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 28 predicate places. [2022-12-11 23:40:38,847 INFO L82 GeneralOperation]: Start removeDead. Operand has 121 places, 188 transitions, 1438 flow [2022-12-11 23:40:38,851 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 141 transitions, 1042 flow [2022-12-11 23:40:38,851 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 141 transitions, 1042 flow [2022-12-11 23:40:38,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 60.46666666666667) internal successors, (907), 15 states have internal predecessors, (907), 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) [2022-12-11 23:40:38,851 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:40:38,851 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:40:38,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 23:40:38,852 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 23:40:38,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:40:38,852 INFO L85 PathProgramCache]: Analyzing trace with hash 2073325707, now seen corresponding path program 1 times [2022-12-11 23:40:38,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:40:38,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241057234] [2022-12-11 23:40:38,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:40:38,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:40:38,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:40:39,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:40:39,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:40:39,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241057234] [2022-12-11 23:40:39,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241057234] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:40:39,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:40:39,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-11 23:40:39,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202477582] [2022-12-11 23:40:39,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:40:39,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-11 23:40:39,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:40:39,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-11 23:40:39,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-11 23:40:39,448 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 90 [2022-12-11 23:40:39,449 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 141 transitions, 1042 flow. Second operand has 10 states, 10 states have (on average 63.9) internal successors, (639), 10 states have internal predecessors, (639), 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) [2022-12-11 23:40:39,449 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:40:39,449 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 90 [2022-12-11 23:40:39,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:40:39,900 INFO L130 PetriNetUnfolder]: 395/907 cut-off events. [2022-12-11 23:40:39,901 INFO L131 PetriNetUnfolder]: For 4914/5268 co-relation queries the response was YES. [2022-12-11 23:40:39,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3632 conditions, 907 events. 395/907 cut-off events. For 4914/5268 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 4908 event pairs, 44 based on Foata normal form. 36/911 useless extension candidates. Maximal degree in co-relation 3532. Up to 366 conditions per place. [2022-12-11 23:40:39,905 INFO L137 encePairwiseOnDemand]: 77/90 looper letters, 55 selfloop transitions, 32 changer transitions 102/247 dead transitions. [2022-12-11 23:40:39,905 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 247 transitions, 2347 flow [2022-12-11 23:40:39,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-11 23:40:39,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-11 23:40:39,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1299 transitions. [2022-12-11 23:40:39,907 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7596491228070176 [2022-12-11 23:40:39,908 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 34 predicate places. [2022-12-11 23:40:39,908 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 247 transitions, 2347 flow [2022-12-11 23:40:39,911 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 145 transitions, 1169 flow [2022-12-11 23:40:39,911 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 145 transitions, 1169 flow [2022-12-11 23:40:39,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.9) internal successors, (639), 10 states have internal predecessors, (639), 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) [2022-12-11 23:40:39,912 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:40:39,912 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:40:39,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 23:40:39,912 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 23:40:39,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:40:39,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1394972686, now seen corresponding path program 1 times [2022-12-11 23:40:39,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:40:39,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852760232] [2022-12-11 23:40:39,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:40:39,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:40:39,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:40:40,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:40:40,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:40:40,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852760232] [2022-12-11 23:40:40,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852760232] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:40:40,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:40:40,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-11 23:40:40,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613545055] [2022-12-11 23:40:40,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:40:40,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-11 23:40:40,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:40:40,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-11 23:40:40,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-12-11 23:40:40,926 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2022-12-11 23:40:40,927 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 145 transitions, 1169 flow. Second operand has 13 states, 13 states have (on average 62.76923076923077) internal successors, (816), 13 states have internal predecessors, (816), 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) [2022-12-11 23:40:40,927 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:40:40,927 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2022-12-11 23:40:40,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:40:41,228 INFO L130 PetriNetUnfolder]: 207/662 cut-off events. [2022-12-11 23:40:41,228 INFO L131 PetriNetUnfolder]: For 3196/3360 co-relation queries the response was YES. [2022-12-11 23:40:41,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2842 conditions, 662 events. 207/662 cut-off events. For 3196/3360 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3775 event pairs, 50 based on Foata normal form. 21/669 useless extension candidates. Maximal degree in co-relation 2730. Up to 258 conditions per place. [2022-12-11 23:40:41,232 INFO L137 encePairwiseOnDemand]: 78/90 looper letters, 51 selfloop transitions, 22 changer transitions 28/174 dead transitions. [2022-12-11 23:40:41,232 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 174 transitions, 1751 flow [2022-12-11 23:40:41,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-11 23:40:41,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-11 23:40:41,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 777 transitions. [2022-12-11 23:40:41,234 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7194444444444444 [2022-12-11 23:40:41,235 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 42 predicate places. [2022-12-11 23:40:41,235 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 174 transitions, 1751 flow [2022-12-11 23:40:41,239 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 146 transitions, 1343 flow [2022-12-11 23:40:41,239 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 146 transitions, 1343 flow [2022-12-11 23:40:41,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.76923076923077) internal successors, (816), 13 states have internal predecessors, (816), 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) [2022-12-11 23:40:41,240 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:40:41,240 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:40:41,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-11 23:40:41,240 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 23:40:41,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:40:41,241 INFO L85 PathProgramCache]: Analyzing trace with hash -722413426, now seen corresponding path program 2 times [2022-12-11 23:40:41,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:40:41,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390568391] [2022-12-11 23:40:41,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:40:41,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:40:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:40:41,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:40:41,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:40:41,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390568391] [2022-12-11 23:40:41,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390568391] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:40:41,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:40:41,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:40:41,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196024155] [2022-12-11 23:40:41,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:40:41,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:40:41,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:40:41,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:40:41,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:40:41,450 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 90 [2022-12-11 23:40:41,451 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 146 transitions, 1343 flow. Second operand has 7 states, 7 states have (on average 69.28571428571429) internal successors, (485), 7 states have internal predecessors, (485), 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) [2022-12-11 23:40:41,451 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:40:41,451 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 90 [2022-12-11 23:40:41,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:40:41,713 INFO L130 PetriNetUnfolder]: 99/378 cut-off events. [2022-12-11 23:40:41,713 INFO L131 PetriNetUnfolder]: For 2159/2324 co-relation queries the response was YES. [2022-12-11 23:40:41,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1793 conditions, 378 events. 99/378 cut-off events. For 2159/2324 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1951 event pairs, 8 based on Foata normal form. 19/383 useless extension candidates. Maximal degree in co-relation 1677. Up to 120 conditions per place. [2022-12-11 23:40:41,718 INFO L137 encePairwiseOnDemand]: 82/90 looper letters, 54 selfloop transitions, 15 changer transitions 24/160 dead transitions. [2022-12-11 23:40:41,718 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 160 transitions, 1647 flow [2022-12-11 23:40:41,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-11 23:40:41,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-11 23:40:41,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 860 transitions. [2022-12-11 23:40:41,722 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7962962962962963 [2022-12-11 23:40:41,724 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 49 predicate places. [2022-12-11 23:40:41,725 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 160 transitions, 1647 flow [2022-12-11 23:40:41,731 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 136 transitions, 1347 flow [2022-12-11 23:40:41,731 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 136 transitions, 1347 flow [2022-12-11 23:40:41,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.28571428571429) internal successors, (485), 7 states have internal predecessors, (485), 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) [2022-12-11 23:40:41,731 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:40:41,731 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:40:41,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-11 23:40:41,732 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 23:40:41,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:40:41,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1087252700, now seen corresponding path program 1 times [2022-12-11 23:40:41,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:40:41,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257347793] [2022-12-11 23:40:41,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:40:41,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:40:41,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:40:42,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:40:42,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:40:42,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257347793] [2022-12-11 23:40:42,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257347793] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:40:42,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:40:42,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-11 23:40:42,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705396552] [2022-12-11 23:40:42,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:40:42,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-11 23:40:42,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:40:42,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-11 23:40:42,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-12-11 23:40:42,905 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 90 [2022-12-11 23:40:42,906 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 136 transitions, 1347 flow. Second operand has 16 states, 16 states have (on average 61.5625) internal successors, (985), 16 states have internal predecessors, (985), 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) [2022-12-11 23:40:42,906 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:40:42,906 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 90 [2022-12-11 23:40:42,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:40:43,374 INFO L130 PetriNetUnfolder]: 78/439 cut-off events. [2022-12-11 23:40:43,374 INFO L131 PetriNetUnfolder]: For 2421/2577 co-relation queries the response was YES. [2022-12-11 23:40:43,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2091 conditions, 439 events. 78/439 cut-off events. For 2421/2577 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2792 event pairs, 4 based on Foata normal form. 8/433 useless extension candidates. Maximal degree in co-relation 1962. Up to 125 conditions per place. [2022-12-11 23:40:43,376 INFO L137 encePairwiseOnDemand]: 76/90 looper letters, 25 selfloop transitions, 19 changer transitions 62/160 dead transitions. [2022-12-11 23:40:43,376 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 160 transitions, 1939 flow [2022-12-11 23:40:43,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-11 23:40:43,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-11 23:40:43,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1068 transitions. [2022-12-11 23:40:43,377 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6980392156862745 [2022-12-11 23:40:43,378 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 61 predicate places. [2022-12-11 23:40:43,378 INFO L82 GeneralOperation]: Start removeDead. Operand has 154 places, 160 transitions, 1939 flow [2022-12-11 23:40:43,379 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 98 transitions, 958 flow [2022-12-11 23:40:43,380 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 98 transitions, 958 flow [2022-12-11 23:40:43,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 61.5625) internal successors, (985), 16 states have internal predecessors, (985), 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) [2022-12-11 23:40:43,380 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:40:43,380 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:40:43,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-11 23:40:43,380 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 23:40:43,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:40:43,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1021759310, now seen corresponding path program 2 times [2022-12-11 23:40:43,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:40:43,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766597300] [2022-12-11 23:40:43,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:40:43,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:40:43,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:40:44,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:40:44,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:40:44,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766597300] [2022-12-11 23:40:44,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766597300] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:40:44,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:40:44,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:40:44,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546657214] [2022-12-11 23:40:44,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:40:44,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:40:44,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:40:44,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:40:44,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:40:44,068 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 90 [2022-12-11 23:40:44,069 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 98 transitions, 958 flow. Second operand has 7 states, 7 states have (on average 61.857142857142854) internal successors, (433), 7 states have internal predecessors, (433), 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) [2022-12-11 23:40:44,069 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:40:44,069 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 90 [2022-12-11 23:40:44,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:40:44,193 INFO L130 PetriNetUnfolder]: 18/144 cut-off events. [2022-12-11 23:40:44,193 INFO L131 PetriNetUnfolder]: For 757/761 co-relation queries the response was YES. [2022-12-11 23:40:44,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 144 events. 18/144 cut-off events. For 757/761 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 341 event pairs, 0 based on Foata normal form. 5/149 useless extension candidates. Maximal degree in co-relation 557. Up to 40 conditions per place. [2022-12-11 23:40:44,194 INFO L137 encePairwiseOnDemand]: 83/90 looper letters, 0 selfloop transitions, 0 changer transitions 99/99 dead transitions. [2022-12-11 23:40:44,194 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 99 transitions, 1100 flow [2022-12-11 23:40:44,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 23:40:44,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 23:40:44,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 435 transitions. [2022-12-11 23:40:44,195 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6904761904761905 [2022-12-11 23:40:44,196 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 43 predicate places. [2022-12-11 23:40:44,196 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 99 transitions, 1100 flow [2022-12-11 23:40:44,196 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-11 23:40:44,196 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-11 23:40:44,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 61.857142857142854) internal successors, (433), 7 states have internal predecessors, (433), 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) [2022-12-11 23:40:44,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-11 23:40:44,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-11 23:40:44,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-11 23:40:44,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-11 23:40:44,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-12-11 23:40:44,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-11 23:40:44,203 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1] [2022-12-11 23:40:44,206 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 23:40:44,206 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 23:40:44,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 11:40:44 BasicIcfg [2022-12-11 23:40:44,210 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 23:40:44,210 INFO L158 Benchmark]: Toolchain (without parser) took 13012.11ms. Allocated memory was 181.4MB in the beginning and 543.2MB in the end (delta: 361.8MB). Free memory was 156.8MB in the beginning and 513.0MB in the end (delta: -356.2MB). Peak memory consumption was 6.6MB. Max. memory is 8.0GB. [2022-12-11 23:40:44,210 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 181.4MB. Free memory is still 158.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 23:40:44,211 INFO L158 Benchmark]: CACSL2BoogieTranslator took 461.02ms. Allocated memory is still 181.4MB. Free memory was 156.8MB in the beginning and 129.0MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2022-12-11 23:40:44,211 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.26ms. Allocated memory is still 181.4MB. Free memory was 129.0MB in the beginning and 125.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-11 23:40:44,211 INFO L158 Benchmark]: Boogie Preprocessor took 27.26ms. Allocated memory is still 181.4MB. Free memory was 125.9MB in the beginning and 123.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 23:40:44,211 INFO L158 Benchmark]: RCFGBuilder took 681.04ms. Allocated memory is still 181.4MB. Free memory was 123.8MB in the beginning and 126.2MB in the end (delta: -2.3MB). Peak memory consumption was 18.1MB. Max. memory is 8.0GB. [2022-12-11 23:40:44,211 INFO L158 Benchmark]: TraceAbstraction took 11778.71ms. Allocated memory was 181.4MB in the beginning and 543.2MB in the end (delta: 361.8MB). Free memory was 125.1MB in the beginning and 513.0MB in the end (delta: -387.9MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 23:40:44,213 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 181.4MB. Free memory is still 158.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 461.02ms. Allocated memory is still 181.4MB. Free memory was 156.8MB in the beginning and 129.0MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.26ms. Allocated memory is still 181.4MB. Free memory was 129.0MB in the beginning and 125.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.26ms. Allocated memory is still 181.4MB. Free memory was 125.9MB in the beginning and 123.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 681.04ms. Allocated memory is still 181.4MB. Free memory was 123.8MB in the beginning and 126.2MB in the end (delta: -2.3MB). Peak memory consumption was 18.1MB. Max. memory is 8.0GB. * TraceAbstraction took 11778.71ms. Allocated memory was 181.4MB in the beginning and 543.2MB in the end (delta: 361.8MB). Free memory was 125.1MB in the beginning and 513.0MB in the end (delta: -387.9MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 110 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 11.7s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 650 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 650 mSDsluCounter, 683 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 541 mSDsCounter, 126 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1521 IncrementalHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 126 mSolverCounterUnsat, 142 mSDtfsCounter, 1521 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 171 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1347occurred in iteration=8, InterpolantAutomatonStates: 134, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 5315 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 642 NumberOfCodeBlocks, 642 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 632 ConstructedInterpolants, 0 QuantifiedInterpolants, 4498 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-11 23:40:44,225 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...