/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 18:38:44,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 18:38:44,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 18:38:44,548 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 18:38:44,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 18:38:44,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 18:38:44,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 18:38:44,563 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 18:38:44,564 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 18:38:44,565 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 18:38:44,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 18:38:44,566 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 18:38:44,566 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 18:38:44,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 18:38:44,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 18:38:44,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 18:38:44,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 18:38:44,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 18:38:44,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 18:38:44,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 18:38:44,573 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 18:38:44,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 18:38:44,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 18:38:44,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 18:38:44,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 18:38:44,577 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 18:38:44,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 18:38:44,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 18:38:44,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 18:38:44,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 18:38:44,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 18:38:44,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 18:38:44,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 18:38:44,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 18:38:44,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 18:38:44,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 18:38:44,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 18:38:44,582 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 18:38:44,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 18:38:44,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 18:38:44,584 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 18:38:44,584 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 [2022-12-05 18:38:44,599 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 18:38:44,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 18:38:44,600 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 18:38:44,600 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 18:38:44,600 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 18:38:44,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 18:38:44,601 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 18:38:44,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 18:38:44,601 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 18:38:44,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 18:38:44,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 18:38:44,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 18:38:44,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 18:38:44,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 18:38:44,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 18:38:44,602 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 18:38:44,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 18:38:44,602 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 18:38:44,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 18:38:44,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 18:38:44,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 18:38:44,603 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 18:38:44,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 18:38:44,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:38:44,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 18:38:44,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 18:38:44,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 18:38:44,604 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 18:38:44,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 18:38:44,604 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-05 18:38:44,604 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 18:38:44,604 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 18:38:44,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 18:38:44,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 18:38:44,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 18:38:44,894 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 18:38:44,895 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 18:38:44,895 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-12-05 18:38:46,116 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 18:38:46,337 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 18:38:46,338 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-12-05 18:38:46,346 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d67cc32b5/c9a4dc7faade471c80facbc0ff487538/FLAG8336ff3ad [2022-12-05 18:38:46,360 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d67cc32b5/c9a4dc7faade471c80facbc0ff487538 [2022-12-05 18:38:46,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 18:38:46,363 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 18:38:46,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 18:38:46,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 18:38:46,365 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 18:38:46,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:38:46" (1/1) ... [2022-12-05 18:38:46,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@682b75bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:46, skipping insertion in model container [2022-12-05 18:38:46,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:38:46" (1/1) ... [2022-12-05 18:38:46,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 18:38:46,411 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 18:38:46,565 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/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2022-12-05 18:38:46,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,707 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,707 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,712 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,712 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,727 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,727 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,735 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,735 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,735 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,738 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,743 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,743 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,745 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,745 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,745 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,755 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,756 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,756 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,763 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,763 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,779 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:38:46,793 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 18:38:46,806 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/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2022-12-05 18:38:46,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,837 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,837 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,837 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,838 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,838 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,838 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,838 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,838 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,859 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,859 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,859 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:46,862 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:46,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:38:46,893 INFO L208 MainTranslator]: Completed translation [2022-12-05 18:38:46,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:46 WrapperNode [2022-12-05 18:38:46,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 18:38:46,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 18:38:46,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 18:38:46,895 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 18:38:46,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:46" (1/1) ... [2022-12-05 18:38:46,923 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:46" (1/1) ... [2022-12-05 18:38:46,961 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 150 [2022-12-05 18:38:46,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 18:38:46,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 18:38:46,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 18:38:46,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 18:38:46,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:46" (1/1) ... [2022-12-05 18:38:46,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:46" (1/1) ... [2022-12-05 18:38:46,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:46" (1/1) ... [2022-12-05 18:38:46,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:46" (1/1) ... [2022-12-05 18:38:46,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:46" (1/1) ... [2022-12-05 18:38:47,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:46" (1/1) ... [2022-12-05 18:38:47,003 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:46" (1/1) ... [2022-12-05 18:38:47,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:46" (1/1) ... [2022-12-05 18:38:47,008 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 18:38:47,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 18:38:47,009 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 18:38:47,009 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 18:38:47,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:46" (1/1) ... [2022-12-05 18:38:47,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:38:47,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:38:47,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-05 18:38:47,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-05 18:38:47,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 18:38:47,093 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 18:38:47,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 18:38:47,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 18:38:47,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 18:38:47,094 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-05 18:38:47,094 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-05 18:38:47,095 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-05 18:38:47,095 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-05 18:38:47,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 18:38:47,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 18:38:47,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 18:38:47,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 18:38:47,096 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 18:38:47,180 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 18:38:47,181 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 18:38:47,484 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 18:38:47,664 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 18:38:47,665 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 18:38:47,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:38:47 BoogieIcfgContainer [2022-12-05 18:38:47,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 18:38:47,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 18:38:47,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 18:38:47,671 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 18:38:47,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 06:38:46" (1/3) ... [2022-12-05 18:38:47,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3d6d98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:38:47, skipping insertion in model container [2022-12-05 18:38:47,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:46" (2/3) ... [2022-12-05 18:38:47,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3d6d98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:38:47, skipping insertion in model container [2022-12-05 18:38:47,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:38:47" (3/3) ... [2022-12-05 18:38:47,673 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-12-05 18:38:47,685 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 18:38:47,685 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-05 18:38:47,686 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 18:38:47,754 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-05 18:38:47,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 92 transitions, 194 flow [2022-12-05 18:38:47,830 INFO L130 PetriNetUnfolder]: 2/90 cut-off events. [2022-12-05 18:38:47,830 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:38:47,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 90 events. 2/90 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. 0/86 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-12-05 18:38:47,833 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 92 transitions, 194 flow [2022-12-05 18:38:47,836 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 90 transitions, 186 flow [2022-12-05 18:38:47,842 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 18:38:47,846 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;@58516b9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 18:38:47,846 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-05 18:38:47,863 INFO L130 PetriNetUnfolder]: 0/56 cut-off events. [2022-12-05 18:38:47,863 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:38:47,863 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:38:47,863 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:38:47,864 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:38:47,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:38:47,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1150441605, now seen corresponding path program 1 times [2022-12-05 18:38:47,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:38:47,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831511745] [2022-12-05 18:38:47,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:38:47,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:38:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:38:48,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:38:48,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:38:48,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831511745] [2022-12-05 18:38:48,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831511745] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:38:48,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:38:48,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 18:38:48,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063613224] [2022-12-05 18:38:48,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:38:48,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 18:38:48,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:38:48,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 18:38:48,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 18:38:48,370 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 92 [2022-12-05 18:38:48,375 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 90 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:38:48,376 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:38:48,376 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 92 [2022-12-05 18:38:48,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:38:48,548 INFO L130 PetriNetUnfolder]: 60/288 cut-off events. [2022-12-05 18:38:48,549 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-05 18:38:48,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 415 conditions, 288 events. 60/288 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1265 event pairs, 9 based on Foata normal form. 24/295 useless extension candidates. Maximal degree in co-relation 369. Up to 88 conditions per place. [2022-12-05 18:38:48,556 INFO L137 encePairwiseOnDemand]: 87/92 looper letters, 14 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2022-12-05 18:38:48,556 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 91 transitions, 220 flow [2022-12-05 18:38:48,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 18:38:48,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 18:38:48,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 252 transitions. [2022-12-05 18:38:48,572 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9130434782608695 [2022-12-05 18:38:48,574 INFO L175 Difference]: Start difference. First operand has 95 places, 90 transitions, 186 flow. Second operand 3 states and 252 transitions. [2022-12-05 18:38:48,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 91 transitions, 220 flow [2022-12-05 18:38:48,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 91 transitions, 218 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 18:38:48,583 INFO L231 Difference]: Finished difference. Result has 93 places, 86 transitions, 180 flow [2022-12-05 18:38:48,585 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=180, PETRI_PLACES=93, PETRI_TRANSITIONS=86} [2022-12-05 18:38:48,590 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, -2 predicate places. [2022-12-05 18:38:48,590 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 86 transitions, 180 flow [2022-12-05 18:38:48,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:38:48,591 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:38:48,592 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:38:48,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 18:38:48,592 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)] === [2022-12-05 18:38:48,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:38:48,594 INFO L85 PathProgramCache]: Analyzing trace with hash 2031287058, now seen corresponding path program 1 times [2022-12-05 18:38:48,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:38:48,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606255868] [2022-12-05 18:38:48,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:38:48,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:38:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:38:49,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:38:49,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:38:49,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606255868] [2022-12-05 18:38:49,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606255868] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:38:49,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:38:49,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:38:49,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789596668] [2022-12-05 18:38:49,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:38:49,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:38:49,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:38:49,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:38:49,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:38:49,258 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 92 [2022-12-05 18:38:49,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 86 transitions, 180 flow. Second operand has 7 states, 7 states have (on average 62.714285714285715) internal successors, (439), 7 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:38:49,259 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:38:49,259 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 92 [2022-12-05 18:38:49,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:38:49,716 INFO L130 PetriNetUnfolder]: 377/1014 cut-off events. [2022-12-05 18:38:49,716 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2022-12-05 18:38:49,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1723 conditions, 1014 events. 377/1014 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 6122 event pairs, 91 based on Foata normal form. 0/977 useless extension candidates. Maximal degree in co-relation 1667. Up to 292 conditions per place. [2022-12-05 18:38:49,722 INFO L137 encePairwiseOnDemand]: 85/92 looper letters, 29 selfloop transitions, 3 changer transitions 53/136 dead transitions. [2022-12-05 18:38:49,722 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 136 transitions, 442 flow [2022-12-05 18:38:49,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 18:38:49,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 18:38:49,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 680 transitions. [2022-12-05 18:38:49,726 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7391304347826086 [2022-12-05 18:38:49,726 INFO L175 Difference]: Start difference. First operand has 93 places, 86 transitions, 180 flow. Second operand 10 states and 680 transitions. [2022-12-05 18:38:49,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 136 transitions, 442 flow [2022-12-05 18:38:49,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 136 transitions, 432 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 18:38:49,729 INFO L231 Difference]: Finished difference. Result has 107 places, 78 transitions, 182 flow [2022-12-05 18:38:49,730 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=182, PETRI_PLACES=107, PETRI_TRANSITIONS=78} [2022-12-05 18:38:49,730 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 12 predicate places. [2022-12-05 18:38:49,731 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 78 transitions, 182 flow [2022-12-05 18:38:49,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 62.714285714285715) internal successors, (439), 7 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:38:49,731 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:38:49,731 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:38:49,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 18:38:49,732 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)] === [2022-12-05 18:38:49,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:38:49,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1286454193, now seen corresponding path program 1 times [2022-12-05 18:38:49,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:38:49,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619578625] [2022-12-05 18:38:49,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:38:49,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:38:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:38:50,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:38:50,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:38:50,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619578625] [2022-12-05 18:38:50,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619578625] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:38:50,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:38:50,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:38:50,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878491884] [2022-12-05 18:38:50,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:38:50,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:38:50,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:38:50,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:38:50,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:38:50,170 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 92 [2022-12-05 18:38:50,171 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 78 transitions, 182 flow. Second operand has 7 states, 7 states have (on average 63.0) internal successors, (441), 7 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:38:50,171 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:38:50,171 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 92 [2022-12-05 18:38:50,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:38:50,477 INFO L130 PetriNetUnfolder]: 177/473 cut-off events. [2022-12-05 18:38:50,477 INFO L131 PetriNetUnfolder]: For 122/122 co-relation queries the response was YES. [2022-12-05 18:38:50,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 961 conditions, 473 events. 177/473 cut-off events. For 122/122 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2126 event pairs, 47 based on Foata normal form. 15/467 useless extension candidates. Maximal degree in co-relation 907. Up to 116 conditions per place. [2022-12-05 18:38:50,480 INFO L137 encePairwiseOnDemand]: 86/92 looper letters, 31 selfloop transitions, 2 changer transitions 31/115 dead transitions. [2022-12-05 18:38:50,480 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 115 transitions, 407 flow [2022-12-05 18:38:50,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-05 18:38:50,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-05 18:38:50,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 606 transitions. [2022-12-05 18:38:50,483 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7318840579710145 [2022-12-05 18:38:50,483 INFO L175 Difference]: Start difference. First operand has 107 places, 78 transitions, 182 flow. Second operand 9 states and 606 transitions. [2022-12-05 18:38:50,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 115 transitions, 407 flow [2022-12-05 18:38:50,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 115 transitions, 371 flow, removed 14 selfloop flow, removed 9 redundant places. [2022-12-05 18:38:50,487 INFO L231 Difference]: Finished difference. Result has 99 places, 78 transitions, 184 flow [2022-12-05 18:38:50,488 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=184, PETRI_PLACES=99, PETRI_TRANSITIONS=78} [2022-12-05 18:38:50,488 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 4 predicate places. [2022-12-05 18:38:50,488 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 78 transitions, 184 flow [2022-12-05 18:38:50,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 63.0) internal successors, (441), 7 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:38:50,489 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:38:50,489 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:38:50,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 18:38:50,490 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)] === [2022-12-05 18:38:50,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:38:50,490 INFO L85 PathProgramCache]: Analyzing trace with hash 26814307, now seen corresponding path program 1 times [2022-12-05 18:38:50,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:38:50,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997275861] [2022-12-05 18:38:50,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:38:50,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:38:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:38:51,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:38:51,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:38:51,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997275861] [2022-12-05 18:38:51,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997275861] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:38:51,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:38:51,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-05 18:38:51,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112273429] [2022-12-05 18:38:51,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:38:51,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-05 18:38:51,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:38:51,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-05 18:38:51,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-12-05 18:38:51,649 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 92 [2022-12-05 18:38:51,650 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 78 transitions, 184 flow. Second operand has 13 states, 13 states have (on average 65.53846153846153) internal successors, (852), 13 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:38:51,650 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:38:51,650 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 92 [2022-12-05 18:38:51,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:38:52,207 INFO L130 PetriNetUnfolder]: 119/378 cut-off events. [2022-12-05 18:38:52,208 INFO L131 PetriNetUnfolder]: For 85/85 co-relation queries the response was YES. [2022-12-05 18:38:52,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 754 conditions, 378 events. 119/378 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1578 event pairs, 21 based on Foata normal form. 6/364 useless extension candidates. Maximal degree in co-relation 699. Up to 139 conditions per place. [2022-12-05 18:38:52,210 INFO L137 encePairwiseOnDemand]: 80/92 looper letters, 30 selfloop transitions, 9 changer transitions 19/113 dead transitions. [2022-12-05 18:38:52,211 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 113 transitions, 401 flow [2022-12-05 18:38:52,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-05 18:38:52,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-05 18:38:52,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 956 transitions. [2022-12-05 18:38:52,213 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7422360248447205 [2022-12-05 18:38:52,213 INFO L175 Difference]: Start difference. First operand has 99 places, 78 transitions, 184 flow. Second operand 14 states and 956 transitions. [2022-12-05 18:38:52,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 113 transitions, 401 flow [2022-12-05 18:38:52,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 113 transitions, 363 flow, removed 14 selfloop flow, removed 8 redundant places. [2022-12-05 18:38:52,218 INFO L231 Difference]: Finished difference. Result has 107 places, 82 transitions, 229 flow [2022-12-05 18:38:52,218 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=229, PETRI_PLACES=107, PETRI_TRANSITIONS=82} [2022-12-05 18:38:52,219 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 12 predicate places. [2022-12-05 18:38:52,219 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 82 transitions, 229 flow [2022-12-05 18:38:52,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 65.53846153846153) internal successors, (852), 13 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:38:52,220 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:38:52,220 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:38:52,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 18:38:52,220 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)] === [2022-12-05 18:38:52,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:38:52,221 INFO L85 PathProgramCache]: Analyzing trace with hash 217506337, now seen corresponding path program 2 times [2022-12-05 18:38:52,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:38:52,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615632386] [2022-12-05 18:38:52,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:38:52,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:38:52,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:38:53,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:38:53,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:38:53,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615632386] [2022-12-05 18:38:53,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615632386] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:38:53,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:38:53,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-05 18:38:53,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071974663] [2022-12-05 18:38:53,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:38:53,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-05 18:38:53,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:38:53,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-05 18:38:53,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2022-12-05 18:38:53,151 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 92 [2022-12-05 18:38:53,152 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 82 transitions, 229 flow. Second operand has 15 states, 15 states have (on average 65.33333333333333) internal successors, (980), 15 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:38:53,152 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:38:53,152 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 92 [2022-12-05 18:38:53,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:38:53,592 INFO L130 PetriNetUnfolder]: 132/425 cut-off events. [2022-12-05 18:38:53,592 INFO L131 PetriNetUnfolder]: For 482/555 co-relation queries the response was YES. [2022-12-05 18:38:53,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1076 conditions, 425 events. 132/425 cut-off events. For 482/555 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1852 event pairs, 21 based on Foata normal form. 11/407 useless extension candidates. Maximal degree in co-relation 1010. Up to 161 conditions per place. [2022-12-05 18:38:53,595 INFO L137 encePairwiseOnDemand]: 77/92 looper letters, 25 selfloop transitions, 14 changer transitions 22/116 dead transitions. [2022-12-05 18:38:53,595 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 116 transitions, 511 flow [2022-12-05 18:38:53,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-05 18:38:53,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-05 18:38:53,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1020 transitions. [2022-12-05 18:38:53,597 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7391304347826086 [2022-12-05 18:38:53,597 INFO L175 Difference]: Start difference. First operand has 107 places, 82 transitions, 229 flow. Second operand 15 states and 1020 transitions. [2022-12-05 18:38:53,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 116 transitions, 511 flow [2022-12-05 18:38:53,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 116 transitions, 486 flow, removed 7 selfloop flow, removed 7 redundant places. [2022-12-05 18:38:53,600 INFO L231 Difference]: Finished difference. Result has 115 places, 88 transitions, 310 flow [2022-12-05 18:38:53,600 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=310, PETRI_PLACES=115, PETRI_TRANSITIONS=88} [2022-12-05 18:38:53,601 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 20 predicate places. [2022-12-05 18:38:53,601 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 88 transitions, 310 flow [2022-12-05 18:38:53,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 65.33333333333333) internal successors, (980), 15 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:38:53,602 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:38:53,602 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:38:53,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 18:38:53,602 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)] === [2022-12-05 18:38:53,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:38:53,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1821912495, now seen corresponding path program 3 times [2022-12-05 18:38:53,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:38:53,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336398064] [2022-12-05 18:38:53,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:38:53,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:38:53,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:38:54,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:38:54,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:38:54,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336398064] [2022-12-05 18:38:54,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336398064] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:38:54,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:38:54,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-05 18:38:54,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280570511] [2022-12-05 18:38:54,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:38:54,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-05 18:38:54,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:38:54,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-05 18:38:54,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-12-05 18:38:54,712 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 92 [2022-12-05 18:38:54,713 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 88 transitions, 310 flow. Second operand has 15 states, 15 states have (on average 64.4) internal successors, (966), 15 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:38:54,713 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:38:54,713 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 92 [2022-12-05 18:38:54,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:38:55,253 INFO L130 PetriNetUnfolder]: 131/401 cut-off events. [2022-12-05 18:38:55,253 INFO L131 PetriNetUnfolder]: For 1464/1602 co-relation queries the response was YES. [2022-12-05 18:38:55,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1443 conditions, 401 events. 131/401 cut-off events. For 1464/1602 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1708 event pairs, 29 based on Foata normal form. 10/388 useless extension candidates. Maximal degree in co-relation 1369. Up to 149 conditions per place. [2022-12-05 18:38:55,256 INFO L137 encePairwiseOnDemand]: 80/92 looper letters, 30 selfloop transitions, 13 changer transitions 19/116 dead transitions. [2022-12-05 18:38:55,256 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 116 transitions, 664 flow [2022-12-05 18:38:55,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-05 18:38:55,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-05 18:38:55,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1003 transitions. [2022-12-05 18:38:55,258 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7268115942028985 [2022-12-05 18:38:55,258 INFO L175 Difference]: Start difference. First operand has 115 places, 88 transitions, 310 flow. Second operand 15 states and 1003 transitions. [2022-12-05 18:38:55,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 116 transitions, 664 flow [2022-12-05 18:38:55,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 116 transitions, 629 flow, removed 10 selfloop flow, removed 8 redundant places. [2022-12-05 18:38:55,263 INFO L231 Difference]: Finished difference. Result has 122 places, 89 transitions, 355 flow [2022-12-05 18:38:55,263 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=355, PETRI_PLACES=122, PETRI_TRANSITIONS=89} [2022-12-05 18:38:55,265 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 27 predicate places. [2022-12-05 18:38:55,266 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 89 transitions, 355 flow [2022-12-05 18:38:55,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 64.4) internal successors, (966), 15 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:38:55,267 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:38:55,267 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:38:55,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 18:38:55,267 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)] === [2022-12-05 18:38:55,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:38:55,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1164348083, now seen corresponding path program 4 times [2022-12-05 18:38:55,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:38:55,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548295950] [2022-12-05 18:38:55,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:38:55,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:38:55,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:38:56,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:38:56,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:38:56,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548295950] [2022-12-05 18:38:56,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548295950] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:38:56,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:38:56,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-05 18:38:56,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817757590] [2022-12-05 18:38:56,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:38:56,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-05 18:38:56,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:38:56,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-05 18:38:56,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-12-05 18:38:56,411 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 92 [2022-12-05 18:38:56,412 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 89 transitions, 355 flow. Second operand has 13 states, 13 states have (on average 64.61538461538461) internal successors, (840), 13 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:38:56,412 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:38:56,412 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 92 [2022-12-05 18:38:56,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:38:56,948 INFO L130 PetriNetUnfolder]: 144/463 cut-off events. [2022-12-05 18:38:56,948 INFO L131 PetriNetUnfolder]: For 2152/2311 co-relation queries the response was YES. [2022-12-05 18:38:56,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1666 conditions, 463 events. 144/463 cut-off events. For 2152/2311 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2326 event pairs, 26 based on Foata normal form. 12/449 useless extension candidates. Maximal degree in co-relation 1600. Up to 148 conditions per place. [2022-12-05 18:38:56,951 INFO L137 encePairwiseOnDemand]: 81/92 looper letters, 36 selfloop transitions, 9 changer transitions 22/121 dead transitions. [2022-12-05 18:38:56,951 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 121 transitions, 769 flow [2022-12-05 18:38:56,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-05 18:38:56,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-05 18:38:56,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 878 transitions. [2022-12-05 18:38:56,953 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7341137123745819 [2022-12-05 18:38:56,954 INFO L175 Difference]: Start difference. First operand has 122 places, 89 transitions, 355 flow. Second operand 13 states and 878 transitions. [2022-12-05 18:38:56,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 121 transitions, 769 flow [2022-12-05 18:38:56,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 121 transitions, 627 flow, removed 61 selfloop flow, removed 16 redundant places. [2022-12-05 18:38:56,958 INFO L231 Difference]: Finished difference. Result has 119 places, 91 transitions, 360 flow [2022-12-05 18:38:56,958 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=360, PETRI_PLACES=119, PETRI_TRANSITIONS=91} [2022-12-05 18:38:56,959 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 24 predicate places. [2022-12-05 18:38:56,959 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 91 transitions, 360 flow [2022-12-05 18:38:56,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 64.61538461538461) internal successors, (840), 13 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:38:56,960 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:38:56,960 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:38:56,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 18:38:56,960 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)] === [2022-12-05 18:38:56,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:38:56,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1682090122, now seen corresponding path program 1 times [2022-12-05 18:38:56,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:38:56,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050264070] [2022-12-05 18:38:56,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:38:56,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:38:56,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:38:57,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:38:57,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:38:57,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050264070] [2022-12-05 18:38:57,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050264070] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:38:57,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:38:57,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:38:57,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002761844] [2022-12-05 18:38:57,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:38:57,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:38:57,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:38:57,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:38:57,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:38:57,228 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 92 [2022-12-05 18:38:57,229 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 91 transitions, 360 flow. Second operand has 7 states, 7 states have (on average 70.42857142857143) internal successors, (493), 7 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:38:57,229 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:38:57,229 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 92 [2022-12-05 18:38:57,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:38:57,439 INFO L130 PetriNetUnfolder]: 133/470 cut-off events. [2022-12-05 18:38:57,439 INFO L131 PetriNetUnfolder]: For 1387/1531 co-relation queries the response was YES. [2022-12-05 18:38:57,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1606 conditions, 470 events. 133/470 cut-off events. For 1387/1531 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2555 event pairs, 46 based on Foata normal form. 25/472 useless extension candidates. Maximal degree in co-relation 1538. Up to 159 conditions per place. [2022-12-05 18:38:57,441 INFO L137 encePairwiseOnDemand]: 82/92 looper letters, 27 selfloop transitions, 8 changer transitions 20/115 dead transitions. [2022-12-05 18:38:57,441 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 115 transitions, 662 flow [2022-12-05 18:38:57,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 18:38:57,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 18:38:57,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 516 transitions. [2022-12-05 18:38:57,443 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8012422360248447 [2022-12-05 18:38:57,443 INFO L175 Difference]: Start difference. First operand has 119 places, 91 transitions, 360 flow. Second operand 7 states and 516 transitions. [2022-12-05 18:38:57,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 115 transitions, 662 flow [2022-12-05 18:38:57,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 115 transitions, 620 flow, removed 14 selfloop flow, removed 8 redundant places. [2022-12-05 18:38:57,448 INFO L231 Difference]: Finished difference. Result has 116 places, 95 transitions, 391 flow [2022-12-05 18:38:57,449 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=391, PETRI_PLACES=116, PETRI_TRANSITIONS=95} [2022-12-05 18:38:57,451 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 21 predicate places. [2022-12-05 18:38:57,452 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 95 transitions, 391 flow [2022-12-05 18:38:57,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.42857142857143) internal successors, (493), 7 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:38:57,452 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:38:57,452 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:38:57,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-05 18:38:57,453 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)] === [2022-12-05 18:38:57,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:38:57,454 INFO L85 PathProgramCache]: Analyzing trace with hash 930666544, now seen corresponding path program 2 times [2022-12-05 18:38:57,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:38:57,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124968519] [2022-12-05 18:38:57,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:38:57,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:38:57,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:38:58,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:38:58,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:38:58,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124968519] [2022-12-05 18:38:58,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124968519] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:38:58,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:38:58,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-05 18:38:58,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867627952] [2022-12-05 18:38:58,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:38:58,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-05 18:38:58,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:38:58,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-05 18:38:58,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-12-05 18:38:58,677 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 92 [2022-12-05 18:38:58,679 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 95 transitions, 391 flow. Second operand has 16 states, 16 states have (on average 60.625) internal successors, (970), 16 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:38:58,679 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:38:58,679 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 92 [2022-12-05 18:38:58,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:38:59,290 INFO L130 PetriNetUnfolder]: 126/452 cut-off events. [2022-12-05 18:38:59,290 INFO L131 PetriNetUnfolder]: For 1505/1859 co-relation queries the response was YES. [2022-12-05 18:38:59,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1711 conditions, 452 events. 126/452 cut-off events. For 1505/1859 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2325 event pairs, 18 based on Foata normal form. 20/455 useless extension candidates. Maximal degree in co-relation 1642. Up to 150 conditions per place. [2022-12-05 18:38:59,293 INFO L137 encePairwiseOnDemand]: 76/92 looper letters, 48 selfloop transitions, 16 changer transitions 28/142 dead transitions. [2022-12-05 18:38:59,293 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 142 transitions, 972 flow [2022-12-05 18:38:59,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-05 18:38:59,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-05 18:38:59,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1138 transitions. [2022-12-05 18:38:59,296 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6871980676328503 [2022-12-05 18:38:59,296 INFO L175 Difference]: Start difference. First operand has 116 places, 95 transitions, 391 flow. Second operand 18 states and 1138 transitions. [2022-12-05 18:38:59,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 142 transitions, 972 flow [2022-12-05 18:38:59,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 142 transitions, 935 flow, removed 13 selfloop flow, removed 5 redundant places. [2022-12-05 18:38:59,303 INFO L231 Difference]: Finished difference. Result has 135 places, 102 transitions, 511 flow [2022-12-05 18:38:59,303 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=511, PETRI_PLACES=135, PETRI_TRANSITIONS=102} [2022-12-05 18:38:59,304 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 40 predicate places. [2022-12-05 18:38:59,304 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 102 transitions, 511 flow [2022-12-05 18:38:59,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 60.625) internal successors, (970), 16 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:38:59,304 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:38:59,304 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:38:59,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-05 18:38:59,305 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)] === [2022-12-05 18:38:59,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:38:59,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1673535732, now seen corresponding path program 3 times [2022-12-05 18:38:59,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:38:59,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231968218] [2022-12-05 18:38:59,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:38:59,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:38:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:38:59,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:38:59,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:38:59,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231968218] [2022-12-05 18:38:59,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231968218] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:38:59,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:38:59,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-05 18:38:59,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82854679] [2022-12-05 18:38:59,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:38:59,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-05 18:38:59,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:38:59,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-05 18:38:59,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-05 18:38:59,779 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 92 [2022-12-05 18:38:59,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 102 transitions, 511 flow. Second operand has 10 states, 10 states have (on average 66.1) internal successors, (661), 10 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:38:59,780 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:38:59,780 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 92 [2022-12-05 18:38:59,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:39:00,042 INFO L130 PetriNetUnfolder]: 124/466 cut-off events. [2022-12-05 18:39:00,042 INFO L131 PetriNetUnfolder]: For 2222/2725 co-relation queries the response was YES. [2022-12-05 18:39:00,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2016 conditions, 466 events. 124/466 cut-off events. For 2222/2725 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2496 event pairs, 18 based on Foata normal form. 42/489 useless extension candidates. Maximal degree in co-relation 1932. Up to 142 conditions per place. [2022-12-05 18:39:00,045 INFO L137 encePairwiseOnDemand]: 79/92 looper letters, 32 selfloop transitions, 19 changer transitions 34/140 dead transitions. [2022-12-05 18:39:00,045 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 140 transitions, 1075 flow [2022-12-05 18:39:00,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-05 18:39:00,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-05 18:39:00,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 765 transitions. [2022-12-05 18:39:00,048 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7559288537549407 [2022-12-05 18:39:00,049 INFO L175 Difference]: Start difference. First operand has 135 places, 102 transitions, 511 flow. Second operand 11 states and 765 transitions. [2022-12-05 18:39:00,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 140 transitions, 1075 flow [2022-12-05 18:39:00,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 140 transitions, 972 flow, removed 43 selfloop flow, removed 13 redundant places. [2022-12-05 18:39:00,055 INFO L231 Difference]: Finished difference. Result has 130 places, 103 transitions, 545 flow [2022-12-05 18:39:00,056 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=463, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=545, PETRI_PLACES=130, PETRI_TRANSITIONS=103} [2022-12-05 18:39:00,057 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 35 predicate places. [2022-12-05 18:39:00,057 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 103 transitions, 545 flow [2022-12-05 18:39:00,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 66.1) internal successors, (661), 10 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:39:00,057 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:39:00,057 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:39:00,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-05 18:39:00,058 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:39:00,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:39:00,058 INFO L85 PathProgramCache]: Analyzing trace with hash 627130836, now seen corresponding path program 4 times [2022-12-05 18:39:00,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:39:00,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787193271] [2022-12-05 18:39:00,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:39:00,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:39:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:39:00,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:39:00,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:39:00,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787193271] [2022-12-05 18:39:00,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787193271] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:39:00,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:39:00,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-05 18:39:00,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623112757] [2022-12-05 18:39:00,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:39:00,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-05 18:39:00,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:39:00,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-05 18:39:00,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-12-05 18:39:00,805 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 92 [2022-12-05 18:39:00,806 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 103 transitions, 545 flow. Second operand has 16 states, 16 states have (on average 63.4375) internal successors, (1015), 16 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:39:00,806 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:39:00,806 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 92 [2022-12-05 18:39:00,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:39:01,216 INFO L130 PetriNetUnfolder]: 86/383 cut-off events. [2022-12-05 18:39:01,216 INFO L131 PetriNetUnfolder]: For 2243/3068 co-relation queries the response was YES. [2022-12-05 18:39:01,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1646 conditions, 383 events. 86/383 cut-off events. For 2243/3068 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1911 event pairs, 17 based on Foata normal form. 26/391 useless extension candidates. Maximal degree in co-relation 1566. Up to 99 conditions per place. [2022-12-05 18:39:01,218 INFO L137 encePairwiseOnDemand]: 79/92 looper letters, 33 selfloop transitions, 10 changer transitions 38/134 dead transitions. [2022-12-05 18:39:01,219 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 134 transitions, 1054 flow [2022-12-05 18:39:01,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-05 18:39:01,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-05 18:39:01,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 862 transitions. [2022-12-05 18:39:01,220 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7207357859531772 [2022-12-05 18:39:01,220 INFO L175 Difference]: Start difference. First operand has 130 places, 103 transitions, 545 flow. Second operand 13 states and 862 transitions. [2022-12-05 18:39:01,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 134 transitions, 1054 flow [2022-12-05 18:39:01,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 134 transitions, 954 flow, removed 34 selfloop flow, removed 8 redundant places. [2022-12-05 18:39:01,226 INFO L231 Difference]: Finished difference. Result has 133 places, 93 transitions, 414 flow [2022-12-05 18:39:01,226 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=414, PETRI_PLACES=133, PETRI_TRANSITIONS=93} [2022-12-05 18:39:01,226 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 38 predicate places. [2022-12-05 18:39:01,227 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 93 transitions, 414 flow [2022-12-05 18:39:01,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 63.4375) internal successors, (1015), 16 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:39:01,227 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:39:01,227 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:39:01,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-05 18:39:01,228 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:39:01,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:39:01,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1144301898, now seen corresponding path program 5 times [2022-12-05 18:39:01,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:39:01,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762154410] [2022-12-05 18:39:01,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:39:01,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:39:01,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:39:01,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:39:01,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:39:01,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762154410] [2022-12-05 18:39:01,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762154410] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:39:01,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:39:01,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-05 18:39:01,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751593925] [2022-12-05 18:39:01,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:39:01,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-05 18:39:01,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:39:01,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-05 18:39:01,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-12-05 18:39:01,862 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 92 [2022-12-05 18:39:01,865 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 93 transitions, 414 flow. Second operand has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:39:01,865 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:39:01,865 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 92 [2022-12-05 18:39:01,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:39:02,312 INFO L130 PetriNetUnfolder]: 67/303 cut-off events. [2022-12-05 18:39:02,312 INFO L131 PetriNetUnfolder]: For 1455/1516 co-relation queries the response was YES. [2022-12-05 18:39:02,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1259 conditions, 303 events. 67/303 cut-off events. For 1455/1516 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1254 event pairs, 17 based on Foata normal form. 11/305 useless extension candidates. Maximal degree in co-relation 1233. Up to 91 conditions per place. [2022-12-05 18:39:02,314 INFO L137 encePairwiseOnDemand]: 76/92 looper letters, 32 selfloop transitions, 11 changer transitions 31/126 dead transitions. [2022-12-05 18:39:02,314 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 126 transitions, 942 flow [2022-12-05 18:39:02,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-05 18:39:02,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-05 18:39:02,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1101 transitions. [2022-12-05 18:39:02,316 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7039641943734015 [2022-12-05 18:39:02,316 INFO L175 Difference]: Start difference. First operand has 133 places, 93 transitions, 414 flow. Second operand 17 states and 1101 transitions. [2022-12-05 18:39:02,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 126 transitions, 942 flow [2022-12-05 18:39:02,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 126 transitions, 881 flow, removed 16 selfloop flow, removed 13 redundant places. [2022-12-05 18:39:02,321 INFO L231 Difference]: Finished difference. Result has 138 places, 93 transitions, 435 flow [2022-12-05 18:39:02,321 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=435, PETRI_PLACES=138, PETRI_TRANSITIONS=93} [2022-12-05 18:39:02,321 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 43 predicate places. [2022-12-05 18:39:02,322 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 93 transitions, 435 flow [2022-12-05 18:39:02,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:39:02,322 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:39:02,322 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:39:02,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-05 18:39:02,322 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:39:02,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:39:02,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1887874386, now seen corresponding path program 6 times [2022-12-05 18:39:02,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:39:02,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120836246] [2022-12-05 18:39:02,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:39:02,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:39:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:39:03,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:39:03,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:39:03,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120836246] [2022-12-05 18:39:03,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120836246] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:39:03,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:39:03,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-05 18:39:03,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737689426] [2022-12-05 18:39:03,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:39:03,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-05 18:39:03,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:39:03,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-05 18:39:03,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-12-05 18:39:03,304 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 92 [2022-12-05 18:39:03,305 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 93 transitions, 435 flow. Second operand has 16 states, 16 states have (on average 60.625) internal successors, (970), 16 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:39:03,305 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:39:03,305 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 92 [2022-12-05 18:39:03,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:39:03,925 INFO L130 PetriNetUnfolder]: 45/231 cut-off events. [2022-12-05 18:39:03,925 INFO L131 PetriNetUnfolder]: For 1878/2035 co-relation queries the response was YES. [2022-12-05 18:39:03,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1115 conditions, 231 events. 45/231 cut-off events. For 1878/2035 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 819 event pairs, 12 based on Foata normal form. 13/236 useless extension candidates. Maximal degree in co-relation 1084. Up to 52 conditions per place. [2022-12-05 18:39:03,927 INFO L137 encePairwiseOnDemand]: 80/92 looper letters, 24 selfloop transitions, 6 changer transitions 33/112 dead transitions. [2022-12-05 18:39:03,927 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 112 transitions, 851 flow [2022-12-05 18:39:03,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-05 18:39:03,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-05 18:39:03,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 820 transitions. [2022-12-05 18:39:03,933 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.68561872909699 [2022-12-05 18:39:03,933 INFO L175 Difference]: Start difference. First operand has 138 places, 93 transitions, 435 flow. Second operand 13 states and 820 transitions. [2022-12-05 18:39:03,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 112 transitions, 851 flow [2022-12-05 18:39:03,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 112 transitions, 770 flow, removed 34 selfloop flow, removed 13 redundant places. [2022-12-05 18:39:03,955 INFO L231 Difference]: Finished difference. Result has 132 places, 79 transitions, 283 flow [2022-12-05 18:39:03,955 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=283, PETRI_PLACES=132, PETRI_TRANSITIONS=79} [2022-12-05 18:39:03,956 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 37 predicate places. [2022-12-05 18:39:03,956 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 79 transitions, 283 flow [2022-12-05 18:39:03,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 60.625) internal successors, (970), 16 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:39:03,957 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:39:03,957 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:39:03,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-05 18:39:03,957 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:39:03,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:39:03,958 INFO L85 PathProgramCache]: Analyzing trace with hash 370239558, now seen corresponding path program 1 times [2022-12-05 18:39:03,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:39:03,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018081593] [2022-12-05 18:39:03,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:39:03,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:39:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:39:04,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:39:04,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:39:04,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018081593] [2022-12-05 18:39:04,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018081593] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:39:04,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:39:04,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-05 18:39:04,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840623666] [2022-12-05 18:39:04,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:39:04,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-05 18:39:04,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:39:04,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-05 18:39:04,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-12-05 18:39:04,770 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 92 [2022-12-05 18:39:04,771 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 79 transitions, 283 flow. Second operand has 13 states, 13 states have (on average 63.84615384615385) internal successors, (830), 13 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:39:04,771 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:39:04,771 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 92 [2022-12-05 18:39:04,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:39:04,960 INFO L130 PetriNetUnfolder]: 7/89 cut-off events. [2022-12-05 18:39:04,960 INFO L131 PetriNetUnfolder]: For 219/228 co-relation queries the response was YES. [2022-12-05 18:39:04,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 89 events. 7/89 cut-off events. For 219/228 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 2 based on Foata normal form. 3/90 useless extension candidates. Maximal degree in co-relation 240. Up to 13 conditions per place. [2022-12-05 18:39:04,961 INFO L137 encePairwiseOnDemand]: 83/92 looper letters, 0 selfloop transitions, 0 changer transitions 80/80 dead transitions. [2022-12-05 18:39:04,961 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 80 transitions, 373 flow [2022-12-05 18:39:04,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 18:39:04,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 18:39:04,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 648 transitions. [2022-12-05 18:39:04,962 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7043478260869566 [2022-12-05 18:39:04,962 INFO L175 Difference]: Start difference. First operand has 132 places, 79 transitions, 283 flow. Second operand 10 states and 648 transitions. [2022-12-05 18:39:04,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 80 transitions, 373 flow [2022-12-05 18:39:04,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 80 transitions, 298 flow, removed 21 selfloop flow, removed 24 redundant places. [2022-12-05 18:39:04,964 INFO L231 Difference]: Finished difference. Result has 108 places, 0 transitions, 0 flow [2022-12-05 18:39:04,964 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=108, PETRI_TRANSITIONS=0} [2022-12-05 18:39:04,965 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 13 predicate places. [2022-12-05 18:39:04,965 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 0 transitions, 0 flow [2022-12-05 18:39:04,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 63.84615384615385) internal successors, (830), 13 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:39:04,968 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-05 18:39:04,968 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-05 18:39:04,968 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-05 18:39:04,969 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-05 18:39:04,969 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-12-05 18:39:04,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-05 18:39:04,969 INFO L458 BasicCegarLoop]: Path program histogram: [6, 4, 1, 1, 1, 1] [2022-12-05 18:39:04,973 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 18:39:04,973 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 18:39:04,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 06:39:04 BasicIcfg [2022-12-05 18:39:04,980 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 18:39:04,980 INFO L158 Benchmark]: Toolchain (without parser) took 18617.84ms. Allocated memory was 201.3MB in the beginning and 580.9MB in the end (delta: 379.6MB). Free memory was 175.6MB in the beginning and 211.5MB in the end (delta: -35.9MB). Peak memory consumption was 344.2MB. Max. memory is 8.0GB. [2022-12-05 18:39:04,980 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 201.3MB. Free memory was 178.6MB in the beginning and 178.6MB in the end (delta: 67.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 18:39:04,981 INFO L158 Benchmark]: CACSL2BoogieTranslator took 531.01ms. Allocated memory is still 201.3MB. Free memory was 175.1MB in the beginning and 147.3MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2022-12-05 18:39:04,981 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.39ms. Allocated memory is still 201.3MB. Free memory was 147.3MB in the beginning and 144.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-05 18:39:04,981 INFO L158 Benchmark]: Boogie Preprocessor took 46.45ms. Allocated memory is still 201.3MB. Free memory was 144.2MB in the beginning and 142.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 18:39:04,981 INFO L158 Benchmark]: RCFGBuilder took 658.90ms. Allocated memory is still 201.3MB. Free memory was 142.1MB in the beginning and 96.5MB in the end (delta: 45.6MB). Peak memory consumption was 46.1MB. Max. memory is 8.0GB. [2022-12-05 18:39:04,981 INFO L158 Benchmark]: TraceAbstraction took 17310.48ms. Allocated memory was 201.3MB in the beginning and 580.9MB in the end (delta: 379.6MB). Free memory was 95.9MB in the beginning and 211.5MB in the end (delta: -115.6MB). Peak memory consumption was 264.5MB. Max. memory is 8.0GB. [2022-12-05 18:39:04,982 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 201.3MB. Free memory was 178.6MB in the beginning and 178.6MB in the end (delta: 67.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 531.01ms. Allocated memory is still 201.3MB. Free memory was 175.1MB in the beginning and 147.3MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 66.39ms. Allocated memory is still 201.3MB. Free memory was 147.3MB in the beginning and 144.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.45ms. Allocated memory is still 201.3MB. Free memory was 144.2MB in the beginning and 142.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 658.90ms. Allocated memory is still 201.3MB. Free memory was 142.1MB in the beginning and 96.5MB in the end (delta: 45.6MB). Peak memory consumption was 46.1MB. Max. memory is 8.0GB. * TraceAbstraction took 17310.48ms. Allocated memory was 201.3MB in the beginning and 580.9MB in the end (delta: 379.6MB). Free memory was 95.9MB in the beginning and 211.5MB in the end (delta: -115.6MB). Peak memory consumption was 264.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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, 113 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: 17.2s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 736 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 736 mSDsluCounter, 1159 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 973 mSDsCounter, 320 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2667 IncrementalHoareTripleChecker+Invalid, 2987 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 320 mSolverCounterUnsat, 186 mSDtfsCounter, 2667 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 247 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=545occurred in iteration=10, InterpolantAutomatonStates: 168, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 10.3s InterpolantComputationTime, 927 NumberOfCodeBlocks, 927 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 913 ConstructedInterpolants, 0 QuantifiedInterpolants, 8315 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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! [2022-12-05 18:39:05,013 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...