/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/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 20:24:48,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 20:24:48,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 20:24:48,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 20:24:48,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 20:24:48,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 20:24:48,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 20:24:48,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 20:24:48,584 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 20:24:48,587 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 20:24:48,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 20:24:48,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 20:24:48,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 20:24:48,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 20:24:48,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 20:24:48,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 20:24:48,596 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 20:24:48,597 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 20:24:48,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 20:24:48,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 20:24:48,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 20:24:48,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 20:24:48,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 20:24:48,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 20:24:48,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 20:24:48,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 20:24:48,611 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 20:24:48,612 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 20:24:48,612 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 20:24:48,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 20:24:48,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 20:24:48,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 20:24:48,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 20:24:48,616 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 20:24:48,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 20:24:48,617 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 20:24:48,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 20:24:48,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 20:24:48,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 20:24:48,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 20:24:48,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 20:24:48,622 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-05 20:24:48,647 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 20:24:48,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 20:24:48,648 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 20:24:48,648 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 20:24:48,648 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 20:24:48,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 20:24:48,649 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 20:24:48,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 20:24:48,649 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 20:24:48,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 20:24:48,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 20:24:48,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 20:24:48,650 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 20:24:48,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 20:24:48,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 20:24:48,650 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 20:24:48,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 20:24:48,650 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 20:24:48,651 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 20:24:48,651 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 20:24:48,651 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 20:24:48,651 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 20:24:48,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 20:24:48,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:24:48,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 20:24:48,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 20:24:48,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 20:24:48,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 20:24:48,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 20:24:48,652 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 20:24:48,652 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 20:24:48,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 20:24:48,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 20:24:48,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 20:24:48,887 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 20:24:48,887 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 20:24:48,888 INFO L432 ainManager$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 20:24:49,836 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 20:24:50,029 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 20:24:50,030 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 20:24:50,048 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74bedffd7/7a7acfea8f46415fb9e9c0e0601ee36b/FLAG706500cdd [2022-12-05 20:24:50,060 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74bedffd7/7a7acfea8f46415fb9e9c0e0601ee36b [2022-12-05 20:24:50,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 20:24:50,062 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 20:24:50,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 20:24:50,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 20:24:50,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 20:24:50,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:24:50" (1/1) ... [2022-12-05 20:24:50,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c1909c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:24:50, skipping insertion in model container [2022-12-05 20:24:50,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:24:50" (1/1) ... [2022-12-05 20:24:50,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 20:24:50,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 20:24:50,202 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 20:24:50,335 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,335 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,336 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,341 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,341 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,355 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,356 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,396 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,407 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:24:50,419 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 20:24:50,427 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 20:24:50,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,457 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,461 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,461 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,463 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,463 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,464 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,464 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,464 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,466 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,466 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,466 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,466 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,481 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,481 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:24:50,489 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:24:50,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:24:50,520 INFO L208 MainTranslator]: Completed translation [2022-12-05 20:24:50,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:24:50 WrapperNode [2022-12-05 20:24:50,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 20:24:50,521 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 20:24:50,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 20:24:50,521 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 20:24:50,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:24:50" (1/1) ... [2022-12-05 20:24:50,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:24:50" (1/1) ... [2022-12-05 20:24:50,581 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 150 [2022-12-05 20:24:50,582 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 20:24:50,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 20:24:50,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 20:24:50,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 20:24:50,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:24:50" (1/1) ... [2022-12-05 20:24:50,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:24:50" (1/1) ... [2022-12-05 20:24:50,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:24:50" (1/1) ... [2022-12-05 20:24:50,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:24:50" (1/1) ... [2022-12-05 20:24:50,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:24:50" (1/1) ... [2022-12-05 20:24:50,611 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:24:50" (1/1) ... [2022-12-05 20:24:50,613 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:24:50" (1/1) ... [2022-12-05 20:24:50,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:24:50" (1/1) ... [2022-12-05 20:24:50,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 20:24:50,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 20:24:50,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 20:24:50,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 20:24:50,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:24:50" (1/1) ... [2022-12-05 20:24:50,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:24:50,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:24:50,676 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 20:24:50,688 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 20:24:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 20:24:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 20:24:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 20:24:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 20:24:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 20:24:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-05 20:24:50,709 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-05 20:24:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-05 20:24:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-05 20:24:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 20:24:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 20:24:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 20:24:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 20:24:50,711 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 20:24:50,812 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 20:24:50,814 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 20:24:51,113 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 20:24:51,301 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 20:24:51,301 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 20:24:51,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:24:51 BoogieIcfgContainer [2022-12-05 20:24:51,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 20:24:51,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 20:24:51,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 20:24:51,309 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 20:24:51,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:24:50" (1/3) ... [2022-12-05 20:24:51,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c994778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:24:51, skipping insertion in model container [2022-12-05 20:24:51,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:24:50" (2/3) ... [2022-12-05 20:24:51,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c994778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:24:51, skipping insertion in model container [2022-12-05 20:24:51,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:24:51" (3/3) ... [2022-12-05 20:24:51,313 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-12-05 20:24:51,327 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 20:24:51,328 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-05 20:24:51,328 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 20:24:51,366 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-05 20:24:51,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 92 transitions, 194 flow [2022-12-05 20:24:51,442 INFO L130 PetriNetUnfolder]: 2/90 cut-off events. [2022-12-05 20:24:51,443 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:24:51,446 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 20:24:51,447 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 92 transitions, 194 flow [2022-12-05 20:24:51,451 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 90 transitions, 186 flow [2022-12-05 20:24:51,452 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 20:24:51,478 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 90 transitions, 186 flow [2022-12-05 20:24:51,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 90 transitions, 186 flow [2022-12-05 20:24:51,515 INFO L130 PetriNetUnfolder]: 2/90 cut-off events. [2022-12-05 20:24:51,515 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:24:51,516 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 20:24:51,519 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 90 transitions, 186 flow [2022-12-05 20:24:51,519 INFO L188 LiptonReduction]: Number of co-enabled transitions 1244 [2022-12-05 20:24:55,159 INFO L203 LiptonReduction]: Total number of compositions: 71 [2022-12-05 20:24:55,170 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 20:24:55,174 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;@4c60c833, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 20:24:55,175 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-05 20:24:55,177 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2022-12-05 20:24:55,177 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:24:55,178 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:24:55,178 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-05 20:24:55,178 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 20:24:55,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:24:55,182 INFO L85 PathProgramCache]: Analyzing trace with hash 458419482, now seen corresponding path program 1 times [2022-12-05 20:24:55,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:24:55,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814425558] [2022-12-05 20:24:55,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:24:55,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:24:55,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:24:55,426 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 20:24:55,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:24:55,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814425558] [2022-12-05 20:24:55,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814425558] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:24:55,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:24:55,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-05 20:24:55,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573225255] [2022-12-05 20:24:55,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:24:55,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:24:55,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:24:55,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:24:55,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:24:55,451 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 22 [2022-12-05 20:24:55,452 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 20:24:55,452 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:24:55,452 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 22 [2022-12-05 20:24:55,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:24:55,607 INFO L130 PetriNetUnfolder]: 275/504 cut-off events. [2022-12-05 20:24:55,607 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-05 20:24:55,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 990 conditions, 504 events. 275/504 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2164 event pairs, 35 based on Foata normal form. 0/444 useless extension candidates. Maximal degree in co-relation 980. Up to 385 conditions per place. [2022-12-05 20:24:55,615 INFO L137 encePairwiseOnDemand]: 17/22 looper letters, 22 selfloop transitions, 2 changer transitions 4/29 dead transitions. [2022-12-05 20:24:55,615 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 29 transitions, 120 flow [2022-12-05 20:24:55,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:24:55,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:24:55,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 36 transitions. [2022-12-05 20:24:55,623 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2022-12-05 20:24:55,624 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 50 flow. Second operand 3 states and 36 transitions. [2022-12-05 20:24:55,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 29 transitions, 120 flow [2022-12-05 20:24:55,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 29 transitions, 118 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 20:24:55,628 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 42 flow [2022-12-05 20:24:55,629 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=42, PETRI_PLACES=26, PETRI_TRANSITIONS=17} [2022-12-05 20:24:55,634 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, -2 predicate places. [2022-12-05 20:24:55,634 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 42 flow [2022-12-05 20:24:55,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 20:24:55,634 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:24:55,634 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:24:55,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 20:24:55,635 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 20:24:55,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:24:55,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1840485257, now seen corresponding path program 1 times [2022-12-05 20:24:55,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:24:55,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364632986] [2022-12-05 20:24:55,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:24:55,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:24:55,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:24:56,137 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 20:24:56,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:24:56,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364632986] [2022-12-05 20:24:56,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364632986] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:24:56,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:24:56,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:24:56,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073857336] [2022-12-05 20:24:56,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:24:56,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 20:24:56,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:24:56,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 20:24:56,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-05 20:24:56,139 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 22 [2022-12-05 20:24:56,140 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 42 flow. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 20:24:56,140 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:24:56,140 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 22 [2022-12-05 20:24:56,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:24:56,260 INFO L130 PetriNetUnfolder]: 193/338 cut-off events. [2022-12-05 20:24:56,260 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-12-05 20:24:56,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 712 conditions, 338 events. 193/338 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1133 event pairs, 65 based on Foata normal form. 12/350 useless extension candidates. Maximal degree in co-relation 702. Up to 243 conditions per place. [2022-12-05 20:24:56,264 INFO L137 encePairwiseOnDemand]: 19/22 looper letters, 22 selfloop transitions, 2 changer transitions 0/24 dead transitions. [2022-12-05 20:24:56,264 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 24 transitions, 104 flow [2022-12-05 20:24:56,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:24:56,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:24:56,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2022-12-05 20:24:56,266 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3787878787878788 [2022-12-05 20:24:56,266 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 42 flow. Second operand 3 states and 25 transitions. [2022-12-05 20:24:56,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 24 transitions, 104 flow [2022-12-05 20:24:56,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 24 transitions, 100 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 20:24:56,267 INFO L231 Difference]: Finished difference. Result has 25 places, 17 transitions, 46 flow [2022-12-05 20:24:56,267 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=25, PETRI_TRANSITIONS=17} [2022-12-05 20:24:56,268 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, -3 predicate places. [2022-12-05 20:24:56,268 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 17 transitions, 46 flow [2022-12-05 20:24:56,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 20:24:56,268 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:24:56,268 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:24:56,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 20:24:56,269 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 20:24:56,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:24:56,273 INFO L85 PathProgramCache]: Analyzing trace with hash 824329286, now seen corresponding path program 1 times [2022-12-05 20:24:56,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:24:56,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039282191] [2022-12-05 20:24:56,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:24:56,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:24:56,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:24:56,653 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 20:24:56,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:24:56,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039282191] [2022-12-05 20:24:56,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039282191] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:24:56,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:24:56,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:24:56,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205646698] [2022-12-05 20:24:56,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:24:56,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 20:24:56,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:24:56,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 20:24:56,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-05 20:24:56,655 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 22 [2022-12-05 20:24:56,655 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 17 transitions, 46 flow. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 20:24:56,656 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:24:56,656 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 22 [2022-12-05 20:24:56,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:24:56,731 INFO L130 PetriNetUnfolder]: 172/305 cut-off events. [2022-12-05 20:24:56,731 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-12-05 20:24:56,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 677 conditions, 305 events. 172/305 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1044 event pairs, 76 based on Foata normal form. 12/317 useless extension candidates. Maximal degree in co-relation 666. Up to 177 conditions per place. [2022-12-05 20:24:56,750 INFO L137 encePairwiseOnDemand]: 19/22 looper letters, 24 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2022-12-05 20:24:56,750 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 26 transitions, 121 flow [2022-12-05 20:24:56,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:24:56,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:24:56,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2022-12-05 20:24:56,752 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4090909090909091 [2022-12-05 20:24:56,752 INFO L175 Difference]: Start difference. First operand has 25 places, 17 transitions, 46 flow. Second operand 3 states and 27 transitions. [2022-12-05 20:24:56,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 26 transitions, 121 flow [2022-12-05 20:24:56,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 26 transitions, 115 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 20:24:56,752 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 50 flow [2022-12-05 20:24:56,753 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=26, PETRI_TRANSITIONS=17} [2022-12-05 20:24:56,753 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, -2 predicate places. [2022-12-05 20:24:56,753 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 50 flow [2022-12-05 20:24:56,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 20:24:56,753 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:24:56,753 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:24:56,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 20:24:56,754 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 20:24:56,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:24:56,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1932815197, now seen corresponding path program 1 times [2022-12-05 20:24:56,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:24:56,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816013803] [2022-12-05 20:24:56,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:24:56,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:24:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:24:57,328 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 20:24:57,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:24:57,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816013803] [2022-12-05 20:24:57,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816013803] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:24:57,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:24:57,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 20:24:57,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399340084] [2022-12-05 20:24:57,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:24:57,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 20:24:57,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:24:57,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 20:24:57,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-05 20:24:57,336 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 22 [2022-12-05 20:24:57,336 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 50 flow. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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 20:24:57,336 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:24:57,336 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 22 [2022-12-05 20:24:57,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:24:57,553 INFO L130 PetriNetUnfolder]: 174/328 cut-off events. [2022-12-05 20:24:57,553 INFO L131 PetriNetUnfolder]: For 52/52 co-relation queries the response was YES. [2022-12-05 20:24:57,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 734 conditions, 328 events. 174/328 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1243 event pairs, 13 based on Foata normal form. 4/332 useless extension candidates. Maximal degree in co-relation 722. Up to 205 conditions per place. [2022-12-05 20:24:57,555 INFO L137 encePairwiseOnDemand]: 13/22 looper letters, 26 selfloop transitions, 10 changer transitions 0/37 dead transitions. [2022-12-05 20:24:57,555 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 37 transitions, 167 flow [2022-12-05 20:24:57,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 20:24:57,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 20:24:57,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 43 transitions. [2022-12-05 20:24:57,557 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.32575757575757575 [2022-12-05 20:24:57,557 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 50 flow. Second operand 6 states and 43 transitions. [2022-12-05 20:24:57,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 37 transitions, 167 flow [2022-12-05 20:24:57,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 37 transitions, 161 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 20:24:57,559 INFO L231 Difference]: Finished difference. Result has 31 places, 25 transitions, 111 flow [2022-12-05 20:24:57,559 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=111, PETRI_PLACES=31, PETRI_TRANSITIONS=25} [2022-12-05 20:24:57,560 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, 3 predicate places. [2022-12-05 20:24:57,560 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 25 transitions, 111 flow [2022-12-05 20:24:57,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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 20:24:57,561 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:24:57,561 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:24:57,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 20:24:57,561 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 20:24:57,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:24:57,561 INFO L85 PathProgramCache]: Analyzing trace with hash -578152701, now seen corresponding path program 2 times [2022-12-05 20:24:57,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:24:57,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275910705] [2022-12-05 20:24:57,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:24:57,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:24:57,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:24:58,392 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 20:24:58,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:24:58,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275910705] [2022-12-05 20:24:58,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275910705] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:24:58,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:24:58,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 20:24:58,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091498882] [2022-12-05 20:24:58,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:24:58,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 20:24:58,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:24:58,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 20:24:58,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-05 20:24:58,394 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 22 [2022-12-05 20:24:58,394 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 25 transitions, 111 flow. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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 20:24:58,394 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:24:58,394 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 22 [2022-12-05 20:24:58,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:24:58,587 INFO L130 PetriNetUnfolder]: 182/343 cut-off events. [2022-12-05 20:24:58,587 INFO L131 PetriNetUnfolder]: For 203/203 co-relation queries the response was YES. [2022-12-05 20:24:58,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 991 conditions, 343 events. 182/343 cut-off events. For 203/203 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1347 event pairs, 10 based on Foata normal form. 3/346 useless extension candidates. Maximal degree in co-relation 977. Up to 155 conditions per place. [2022-12-05 20:24:58,589 INFO L137 encePairwiseOnDemand]: 14/22 looper letters, 40 selfloop transitions, 11 changer transitions 0/52 dead transitions. [2022-12-05 20:24:58,589 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 52 transitions, 297 flow [2022-12-05 20:24:58,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 20:24:58,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 20:24:58,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 51 transitions. [2022-12-05 20:24:58,592 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.33116883116883117 [2022-12-05 20:24:58,592 INFO L175 Difference]: Start difference. First operand has 31 places, 25 transitions, 111 flow. Second operand 7 states and 51 transitions. [2022-12-05 20:24:58,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 52 transitions, 297 flow [2022-12-05 20:24:58,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 52 transitions, 296 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 20:24:58,595 INFO L231 Difference]: Finished difference. Result has 38 places, 31 transitions, 173 flow [2022-12-05 20:24:58,595 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=173, PETRI_PLACES=38, PETRI_TRANSITIONS=31} [2022-12-05 20:24:58,596 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, 10 predicate places. [2022-12-05 20:24:58,597 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 31 transitions, 173 flow [2022-12-05 20:24:58,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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 20:24:58,597 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:24:58,597 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:24:58,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 20:24:58,597 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 20:24:58,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:24:58,597 INFO L85 PathProgramCache]: Analyzing trace with hash 960630361, now seen corresponding path program 3 times [2022-12-05 20:24:58,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:24:58,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129050279] [2022-12-05 20:24:58,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:24:58,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:24:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:24:59,149 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 20:24:59,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:24:59,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129050279] [2022-12-05 20:24:59,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129050279] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:24:59,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:24:59,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 20:24:59,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877252607] [2022-12-05 20:24:59,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:24:59,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-05 20:24:59,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:24:59,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-05 20:24:59,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-05 20:24:59,151 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 22 [2022-12-05 20:24:59,152 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 173 flow. Second operand has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 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 20:24:59,152 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:24:59,152 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 22 [2022-12-05 20:24:59,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:24:59,355 INFO L130 PetriNetUnfolder]: 164/306 cut-off events. [2022-12-05 20:24:59,355 INFO L131 PetriNetUnfolder]: For 337/337 co-relation queries the response was YES. [2022-12-05 20:24:59,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1042 conditions, 306 events. 164/306 cut-off events. For 337/337 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1130 event pairs, 14 based on Foata normal form. 8/314 useless extension candidates. Maximal degree in co-relation 1025. Up to 243 conditions per place. [2022-12-05 20:24:59,356 INFO L137 encePairwiseOnDemand]: 12/22 looper letters, 33 selfloop transitions, 16 changer transitions 0/50 dead transitions. [2022-12-05 20:24:59,356 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 50 transitions, 352 flow [2022-12-05 20:24:59,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 20:24:59,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 20:24:59,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 51 transitions. [2022-12-05 20:24:59,358 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.33116883116883117 [2022-12-05 20:24:59,359 INFO L175 Difference]: Start difference. First operand has 38 places, 31 transitions, 173 flow. Second operand 7 states and 51 transitions. [2022-12-05 20:24:59,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 50 transitions, 352 flow [2022-12-05 20:24:59,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 50 transitions, 338 flow, removed 4 selfloop flow, removed 1 redundant places. [2022-12-05 20:24:59,363 INFO L231 Difference]: Finished difference. Result has 47 places, 38 transitions, 276 flow [2022-12-05 20:24:59,363 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=276, PETRI_PLACES=47, PETRI_TRANSITIONS=38} [2022-12-05 20:24:59,365 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, 19 predicate places. [2022-12-05 20:24:59,366 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 38 transitions, 276 flow [2022-12-05 20:24:59,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 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 20:24:59,366 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:24:59,366 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:24:59,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 20:24:59,368 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 20:24:59,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:24:59,369 INFO L85 PathProgramCache]: Analyzing trace with hash -10551575, now seen corresponding path program 1 times [2022-12-05 20:24:59,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:24:59,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63581525] [2022-12-05 20:24:59,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:24:59,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:24:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:25:00,300 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 20:25:00,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:25:00,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63581525] [2022-12-05 20:25:00,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63581525] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:25:00,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:25:00,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 20:25:00,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339407461] [2022-12-05 20:25:00,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:25:00,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-05 20:25:00,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:25:00,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-05 20:25:00,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-05 20:25:00,302 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 22 [2022-12-05 20:25:00,302 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 38 transitions, 276 flow. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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 20:25:00,302 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:25:00,302 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 22 [2022-12-05 20:25:00,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:25:00,471 INFO L130 PetriNetUnfolder]: 161/301 cut-off events. [2022-12-05 20:25:00,471 INFO L131 PetriNetUnfolder]: For 749/749 co-relation queries the response was YES. [2022-12-05 20:25:00,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1250 conditions, 301 events. 161/301 cut-off events. For 749/749 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1108 event pairs, 19 based on Foata normal form. 2/303 useless extension candidates. Maximal degree in co-relation 1228. Up to 212 conditions per place. [2022-12-05 20:25:00,473 INFO L137 encePairwiseOnDemand]: 17/22 looper letters, 35 selfloop transitions, 12 changer transitions 0/48 dead transitions. [2022-12-05 20:25:00,473 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 48 transitions, 428 flow [2022-12-05 20:25:00,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 20:25:00,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 20:25:00,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 39 transitions. [2022-12-05 20:25:00,474 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.35454545454545455 [2022-12-05 20:25:00,474 INFO L175 Difference]: Start difference. First operand has 47 places, 38 transitions, 276 flow. Second operand 5 states and 39 transitions. [2022-12-05 20:25:00,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 48 transitions, 428 flow [2022-12-05 20:25:00,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 48 transitions, 410 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-05 20:25:00,477 INFO L231 Difference]: Finished difference. Result has 48 places, 38 transitions, 294 flow [2022-12-05 20:25:00,477 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=294, PETRI_PLACES=48, PETRI_TRANSITIONS=38} [2022-12-05 20:25:00,477 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, 20 predicate places. [2022-12-05 20:25:00,477 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 38 transitions, 294 flow [2022-12-05 20:25:00,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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 20:25:00,477 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:25:00,477 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:25:00,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 20:25:00,478 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 20:25:00,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:25:00,478 INFO L85 PathProgramCache]: Analyzing trace with hash -67511936, now seen corresponding path program 1 times [2022-12-05 20:25:00,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:25:00,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842013679] [2022-12-05 20:25:00,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:25:00,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:25:00,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:25:00,760 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 20:25:00,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:25:00,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842013679] [2022-12-05 20:25:00,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842013679] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:25:00,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:25:00,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 20:25:00,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218521428] [2022-12-05 20:25:00,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:25:00,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 20:25:00,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:25:00,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 20:25:00,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-05 20:25:00,762 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 22 [2022-12-05 20:25:00,762 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 294 flow. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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 20:25:00,762 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:25:00,762 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 22 [2022-12-05 20:25:00,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:25:00,941 INFO L130 PetriNetUnfolder]: 220/415 cut-off events. [2022-12-05 20:25:00,942 INFO L131 PetriNetUnfolder]: For 1238/1238 co-relation queries the response was YES. [2022-12-05 20:25:00,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1734 conditions, 415 events. 220/415 cut-off events. For 1238/1238 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1743 event pairs, 36 based on Foata normal form. 12/427 useless extension candidates. Maximal degree in co-relation 1711. Up to 177 conditions per place. [2022-12-05 20:25:00,944 INFO L137 encePairwiseOnDemand]: 12/22 looper letters, 25 selfloop transitions, 17 changer transitions 33/76 dead transitions. [2022-12-05 20:25:00,944 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 76 transitions, 703 flow [2022-12-05 20:25:00,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 20:25:00,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 20:25:00,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 64 transitions. [2022-12-05 20:25:00,945 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4155844155844156 [2022-12-05 20:25:00,945 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 294 flow. Second operand 7 states and 64 transitions. [2022-12-05 20:25:00,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 76 transitions, 703 flow [2022-12-05 20:25:00,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 76 transitions, 669 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-05 20:25:00,947 INFO L231 Difference]: Finished difference. Result has 54 places, 40 transitions, 365 flow [2022-12-05 20:25:00,948 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=365, PETRI_PLACES=54, PETRI_TRANSITIONS=40} [2022-12-05 20:25:00,948 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, 26 predicate places. [2022-12-05 20:25:00,948 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 40 transitions, 365 flow [2022-12-05 20:25:00,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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 20:25:00,948 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:25:00,948 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:25:00,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-05 20:25:00,949 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 20:25:00,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:25:00,949 INFO L85 PathProgramCache]: Analyzing trace with hash 125317870, now seen corresponding path program 2 times [2022-12-05 20:25:00,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:25:00,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518977329] [2022-12-05 20:25:00,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:25:00,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:25:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:25:01,195 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 20:25:01,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:25:01,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518977329] [2022-12-05 20:25:01,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518977329] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:25:01,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:25:01,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 20:25:01,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321063534] [2022-12-05 20:25:01,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:25:01,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 20:25:01,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:25:01,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 20:25:01,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 20:25:01,198 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 22 [2022-12-05 20:25:01,199 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 40 transitions, 365 flow. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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 20:25:01,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:25:01,199 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 22 [2022-12-05 20:25:01,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:25:01,376 INFO L130 PetriNetUnfolder]: 110/241 cut-off events. [2022-12-05 20:25:01,377 INFO L131 PetriNetUnfolder]: For 1111/1111 co-relation queries the response was YES. [2022-12-05 20:25:01,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1163 conditions, 241 events. 110/241 cut-off events. For 1111/1111 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 912 event pairs, 43 based on Foata normal form. 10/251 useless extension candidates. Maximal degree in co-relation 1136. Up to 108 conditions per place. [2022-12-05 20:25:01,378 INFO L137 encePairwiseOnDemand]: 12/22 looper letters, 33 selfloop transitions, 24 changer transitions 7/65 dead transitions. [2022-12-05 20:25:01,378 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 65 transitions, 675 flow [2022-12-05 20:25:01,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 20:25:01,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 20:25:01,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 53 transitions. [2022-12-05 20:25:01,380 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.30113636363636365 [2022-12-05 20:25:01,380 INFO L175 Difference]: Start difference. First operand has 54 places, 40 transitions, 365 flow. Second operand 8 states and 53 transitions. [2022-12-05 20:25:01,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 65 transitions, 675 flow [2022-12-05 20:25:01,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 65 transitions, 654 flow, removed 8 selfloop flow, removed 2 redundant places. [2022-12-05 20:25:01,384 INFO L231 Difference]: Finished difference. Result has 59 places, 49 transitions, 530 flow [2022-12-05 20:25:01,384 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=530, PETRI_PLACES=59, PETRI_TRANSITIONS=49} [2022-12-05 20:25:01,384 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, 31 predicate places. [2022-12-05 20:25:01,384 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 49 transitions, 530 flow [2022-12-05 20:25:01,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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 20:25:01,385 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:25:01,385 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:25:01,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-05 20:25:01,385 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 20:25:01,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:25:01,385 INFO L85 PathProgramCache]: Analyzing trace with hash 203966110, now seen corresponding path program 3 times [2022-12-05 20:25:01,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:25:01,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724597191] [2022-12-05 20:25:01,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:25:01,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:25:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:25:01,949 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 20:25:01,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:25:01,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724597191] [2022-12-05 20:25:01,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724597191] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:25:01,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:25:01,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 20:25:01,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072265178] [2022-12-05 20:25:01,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:25:01,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-05 20:25:01,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:25:01,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-05 20:25:01,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-05 20:25:01,950 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 22 [2022-12-05 20:25:01,951 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 49 transitions, 530 flow. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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 20:25:01,951 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:25:01,951 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 22 [2022-12-05 20:25:01,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:25:02,178 INFO L130 PetriNetUnfolder]: 83/198 cut-off events. [2022-12-05 20:25:02,178 INFO L131 PetriNetUnfolder]: For 1426/1426 co-relation queries the response was YES. [2022-12-05 20:25:02,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1124 conditions, 198 events. 83/198 cut-off events. For 1426/1426 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 732 event pairs, 25 based on Foata normal form. 9/207 useless extension candidates. Maximal degree in co-relation 1094. Up to 118 conditions per place. [2022-12-05 20:25:02,180 INFO L137 encePairwiseOnDemand]: 13/22 looper letters, 42 selfloop transitions, 20 changer transitions 9/72 dead transitions. [2022-12-05 20:25:02,180 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 72 transitions, 858 flow [2022-12-05 20:25:02,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 20:25:02,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 20:25:02,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 61 transitions. [2022-12-05 20:25:02,181 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.2772727272727273 [2022-12-05 20:25:02,181 INFO L175 Difference]: Start difference. First operand has 59 places, 49 transitions, 530 flow. Second operand 10 states and 61 transitions. [2022-12-05 20:25:02,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 72 transitions, 858 flow [2022-12-05 20:25:02,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 72 transitions, 815 flow, removed 5 selfloop flow, removed 5 redundant places. [2022-12-05 20:25:02,184 INFO L231 Difference]: Finished difference. Result has 67 places, 53 transitions, 614 flow [2022-12-05 20:25:02,199 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=614, PETRI_PLACES=67, PETRI_TRANSITIONS=53} [2022-12-05 20:25:02,200 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, 39 predicate places. [2022-12-05 20:25:02,200 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 53 transitions, 614 flow [2022-12-05 20:25:02,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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 20:25:02,200 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:25:02,200 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:25:02,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-05 20:25:02,200 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 20:25:02,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:25:02,201 INFO L85 PathProgramCache]: Analyzing trace with hash 74606414, now seen corresponding path program 4 times [2022-12-05 20:25:02,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:25:02,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390944793] [2022-12-05 20:25:02,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:25:02,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:25:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:25:02,940 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 20:25:02,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:25:02,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390944793] [2022-12-05 20:25:02,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390944793] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:25:02,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:25:02,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 20:25:02,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349284312] [2022-12-05 20:25:02,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:25:02,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-05 20:25:02,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:25:02,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-05 20:25:02,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-05 20:25:02,941 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 22 [2022-12-05 20:25:02,941 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 53 transitions, 614 flow. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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 20:25:02,941 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:25:02,942 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 22 [2022-12-05 20:25:02,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:25:03,212 INFO L130 PetriNetUnfolder]: 112/260 cut-off events. [2022-12-05 20:25:03,212 INFO L131 PetriNetUnfolder]: For 2385/2385 co-relation queries the response was YES. [2022-12-05 20:25:03,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1542 conditions, 260 events. 112/260 cut-off events. For 2385/2385 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1089 event pairs, 31 based on Foata normal form. 15/275 useless extension candidates. Maximal degree in co-relation 1510. Up to 139 conditions per place. [2022-12-05 20:25:03,214 INFO L137 encePairwiseOnDemand]: 13/22 looper letters, 48 selfloop transitions, 22 changer transitions 15/86 dead transitions. [2022-12-05 20:25:03,214 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 86 transitions, 1082 flow [2022-12-05 20:25:03,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 20:25:03,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 20:25:03,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 67 transitions. [2022-12-05 20:25:03,215 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.30454545454545456 [2022-12-05 20:25:03,215 INFO L175 Difference]: Start difference. First operand has 67 places, 53 transitions, 614 flow. Second operand 10 states and 67 transitions. [2022-12-05 20:25:03,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 86 transitions, 1082 flow [2022-12-05 20:25:03,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 86 transitions, 1036 flow, removed 12 selfloop flow, removed 5 redundant places. [2022-12-05 20:25:03,222 INFO L231 Difference]: Finished difference. Result has 75 places, 61 transitions, 775 flow [2022-12-05 20:25:03,222 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=581, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=775, PETRI_PLACES=75, PETRI_TRANSITIONS=61} [2022-12-05 20:25:03,222 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, 47 predicate places. [2022-12-05 20:25:03,223 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 61 transitions, 775 flow [2022-12-05 20:25:03,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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 20:25:03,223 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:25:03,223 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:25:03,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-05 20:25:03,223 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 20:25:03,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:25:03,223 INFO L85 PathProgramCache]: Analyzing trace with hash -2120211672, now seen corresponding path program 5 times [2022-12-05 20:25:03,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:25:03,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680471383] [2022-12-05 20:25:03,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:25:03,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:25:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:25:03,714 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 20:25:03,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:25:03,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680471383] [2022-12-05 20:25:03,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680471383] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:25:03,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:25:03,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 20:25:03,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102741314] [2022-12-05 20:25:03,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:25:03,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-05 20:25:03,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:25:03,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-05 20:25:03,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-12-05 20:25:03,715 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 22 [2022-12-05 20:25:03,715 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 61 transitions, 775 flow. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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 20:25:03,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:25:03,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 22 [2022-12-05 20:25:03,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:25:03,996 INFO L130 PetriNetUnfolder]: 69/175 cut-off events. [2022-12-05 20:25:03,996 INFO L131 PetriNetUnfolder]: For 1848/1848 co-relation queries the response was YES. [2022-12-05 20:25:03,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1091 conditions, 175 events. 69/175 cut-off events. For 1848/1848 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 639 event pairs, 11 based on Foata normal form. 15/190 useless extension candidates. Maximal degree in co-relation 1055. Up to 59 conditions per place. [2022-12-05 20:25:03,997 INFO L137 encePairwiseOnDemand]: 12/22 looper letters, 25 selfloop transitions, 28 changer transitions 15/69 dead transitions. [2022-12-05 20:25:03,997 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 69 transitions, 894 flow [2022-12-05 20:25:03,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-05 20:25:03,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-05 20:25:03,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 72 transitions. [2022-12-05 20:25:03,999 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.23376623376623376 [2022-12-05 20:25:03,999 INFO L175 Difference]: Start difference. First operand has 75 places, 61 transitions, 775 flow. Second operand 14 states and 72 transitions. [2022-12-05 20:25:03,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 69 transitions, 894 flow [2022-12-05 20:25:04,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 69 transitions, 795 flow, removed 22 selfloop flow, removed 10 redundant places. [2022-12-05 20:25:04,004 INFO L231 Difference]: Finished difference. Result has 84 places, 46 transitions, 596 flow [2022-12-05 20:25:04,005 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=497, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=596, PETRI_PLACES=84, PETRI_TRANSITIONS=46} [2022-12-05 20:25:04,005 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, 56 predicate places. [2022-12-05 20:25:04,005 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 46 transitions, 596 flow [2022-12-05 20:25:04,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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 20:25:04,005 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:25:04,005 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:25:04,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-05 20:25:04,006 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 20:25:04,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:25:04,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1186613930, now seen corresponding path program 1 times [2022-12-05 20:25:04,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:25:04,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141697425] [2022-12-05 20:25:04,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:25:04,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:25:04,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:25:04,369 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 20:25:04,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:25:04,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141697425] [2022-12-05 20:25:04,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141697425] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:25:04,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:25:04,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 20:25:04,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240186555] [2022-12-05 20:25:04,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:25:04,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 20:25:04,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:25:04,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 20:25:04,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-12-05 20:25:04,371 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 22 [2022-12-05 20:25:04,371 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 46 transitions, 596 flow. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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 20:25:04,371 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:25:04,371 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 22 [2022-12-05 20:25:04,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:25:04,487 INFO L130 PetriNetUnfolder]: 47/137 cut-off events. [2022-12-05 20:25:04,487 INFO L131 PetriNetUnfolder]: For 1657/1657 co-relation queries the response was YES. [2022-12-05 20:25:04,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 902 conditions, 137 events. 47/137 cut-off events. For 1657/1657 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 470 event pairs, 22 based on Foata normal form. 10/147 useless extension candidates. Maximal degree in co-relation 864. Up to 77 conditions per place. [2022-12-05 20:25:04,488 INFO L137 encePairwiseOnDemand]: 14/22 looper letters, 23 selfloop transitions, 13 changer transitions 21/58 dead transitions. [2022-12-05 20:25:04,488 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 58 transitions, 831 flow [2022-12-05 20:25:04,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 20:25:04,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 20:25:04,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 43 transitions. [2022-12-05 20:25:04,489 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.2792207792207792 [2022-12-05 20:25:04,489 INFO L175 Difference]: Start difference. First operand has 84 places, 46 transitions, 596 flow. Second operand 7 states and 43 transitions. [2022-12-05 20:25:04,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 58 transitions, 831 flow [2022-12-05 20:25:04,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 58 transitions, 705 flow, removed 34 selfloop flow, removed 10 redundant places. [2022-12-05 20:25:04,494 INFO L231 Difference]: Finished difference. Result has 81 places, 36 transitions, 421 flow [2022-12-05 20:25:04,494 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=421, PETRI_PLACES=81, PETRI_TRANSITIONS=36} [2022-12-05 20:25:04,494 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, 53 predicate places. [2022-12-05 20:25:04,494 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 36 transitions, 421 flow [2022-12-05 20:25:04,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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 20:25:04,495 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:25:04,495 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:25:04,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-05 20:25:04,495 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 20:25:04,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:25:04,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1210673866, now seen corresponding path program 2 times [2022-12-05 20:25:04,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:25:04,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678764756] [2022-12-05 20:25:04,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:25:04,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:25:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:25:05,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:25:05,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:25:05,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678764756] [2022-12-05 20:25:05,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678764756] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:25:05,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:25:05,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 20:25:05,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555597341] [2022-12-05 20:25:05,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:25:05,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 20:25:05,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:25:05,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 20:25:05,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-05 20:25:05,083 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 22 [2022-12-05 20:25:05,083 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 36 transitions, 421 flow. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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 20:25:05,083 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:25:05,083 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 22 [2022-12-05 20:25:05,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:25:05,199 INFO L130 PetriNetUnfolder]: 32/99 cut-off events. [2022-12-05 20:25:05,199 INFO L131 PetriNetUnfolder]: For 1047/1047 co-relation queries the response was YES. [2022-12-05 20:25:05,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 648 conditions, 99 events. 32/99 cut-off events. For 1047/1047 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 285 event pairs, 16 based on Foata normal form. 6/105 useless extension candidates. Maximal degree in co-relation 610. Up to 51 conditions per place. [2022-12-05 20:25:05,200 INFO L137 encePairwiseOnDemand]: 14/22 looper letters, 21 selfloop transitions, 9 changer transitions 14/45 dead transitions. [2022-12-05 20:25:05,200 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 45 transitions, 586 flow [2022-12-05 20:25:05,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 20:25:05,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 20:25:05,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 40 transitions. [2022-12-05 20:25:05,201 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.22727272727272727 [2022-12-05 20:25:05,201 INFO L175 Difference]: Start difference. First operand has 81 places, 36 transitions, 421 flow. Second operand 8 states and 40 transitions. [2022-12-05 20:25:05,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 45 transitions, 586 flow [2022-12-05 20:25:05,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 45 transitions, 486 flow, removed 19 selfloop flow, removed 15 redundant places. [2022-12-05 20:25:05,204 INFO L231 Difference]: Finished difference. Result has 71 places, 30 transitions, 303 flow [2022-12-05 20:25:05,204 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=303, PETRI_PLACES=71, PETRI_TRANSITIONS=30} [2022-12-05 20:25:05,205 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, 43 predicate places. [2022-12-05 20:25:05,205 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 30 transitions, 303 flow [2022-12-05 20:25:05,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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 20:25:05,205 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:25:05,205 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:25:05,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-05 20:25:05,205 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 20:25:05,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:25:05,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1526341004, now seen corresponding path program 3 times [2022-12-05 20:25:05,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:25:05,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422529573] [2022-12-05 20:25:05,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:25:05,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:25:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:25:05,660 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 20:25:05,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:25:05,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422529573] [2022-12-05 20:25:05,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422529573] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:25:05,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:25:05,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 20:25:05,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572972842] [2022-12-05 20:25:05,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:25:05,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-05 20:25:05,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:25:05,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-05 20:25:05,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-12-05 20:25:05,661 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 22 [2022-12-05 20:25:05,662 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 30 transitions, 303 flow. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 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 20:25:05,662 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:25:05,662 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 22 [2022-12-05 20:25:05,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:25:05,813 INFO L130 PetriNetUnfolder]: 25/80 cut-off events. [2022-12-05 20:25:05,814 INFO L131 PetriNetUnfolder]: For 541/541 co-relation queries the response was YES. [2022-12-05 20:25:05,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 464 conditions, 80 events. 25/80 cut-off events. For 541/541 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 193 event pairs, 12 based on Foata normal form. 6/86 useless extension candidates. Maximal degree in co-relation 432. Up to 29 conditions per place. [2022-12-05 20:25:05,814 INFO L137 encePairwiseOnDemand]: 13/22 looper letters, 15 selfloop transitions, 12 changer transitions 10/38 dead transitions. [2022-12-05 20:25:05,814 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 38 transitions, 436 flow [2022-12-05 20:25:05,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-05 20:25:05,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-05 20:25:05,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 40 transitions. [2022-12-05 20:25:05,815 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.20202020202020202 [2022-12-05 20:25:05,815 INFO L175 Difference]: Start difference. First operand has 71 places, 30 transitions, 303 flow. Second operand 9 states and 40 transitions. [2022-12-05 20:25:05,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 38 transitions, 436 flow [2022-12-05 20:25:05,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 38 transitions, 344 flow, removed 13 selfloop flow, removed 14 redundant places. [2022-12-05 20:25:05,818 INFO L231 Difference]: Finished difference. Result has 62 places, 25 transitions, 207 flow [2022-12-05 20:25:05,818 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=207, PETRI_PLACES=62, PETRI_TRANSITIONS=25} [2022-12-05 20:25:05,818 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, 34 predicate places. [2022-12-05 20:25:05,818 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 25 transitions, 207 flow [2022-12-05 20:25:05,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 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 20:25:05,819 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:25:05,819 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:25:05,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-05 20:25:05,819 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 20:25:05,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:25:05,819 INFO L85 PathProgramCache]: Analyzing trace with hash -911985076, now seen corresponding path program 4 times [2022-12-05 20:25:05,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:25:05,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552052385] [2022-12-05 20:25:05,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:25:05,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:25:05,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:25:06,456 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 20:25:06,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:25:06,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552052385] [2022-12-05 20:25:06,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552052385] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:25:06,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:25:06,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 20:25:06,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267429962] [2022-12-05 20:25:06,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:25:06,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 20:25:06,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:25:06,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 20:25:06,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-05 20:25:06,458 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 22 [2022-12-05 20:25:06,458 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 25 transitions, 207 flow. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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 20:25:06,458 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:25:06,458 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 22 [2022-12-05 20:25:06,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:25:06,772 INFO L130 PetriNetUnfolder]: 17/58 cut-off events. [2022-12-05 20:25:06,772 INFO L131 PetriNetUnfolder]: For 280/280 co-relation queries the response was YES. [2022-12-05 20:25:06,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 307 conditions, 58 events. 17/58 cut-off events. For 280/280 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 101 event pairs, 5 based on Foata normal form. 4/62 useless extension candidates. Maximal degree in co-relation 286. Up to 25 conditions per place. [2022-12-05 20:25:06,773 INFO L137 encePairwiseOnDemand]: 14/22 looper letters, 19 selfloop transitions, 13 changer transitions 0/33 dead transitions. [2022-12-05 20:25:06,773 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 33 transitions, 320 flow [2022-12-05 20:25:06,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 20:25:06,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 20:25:06,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 39 transitions. [2022-12-05 20:25:06,774 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.2215909090909091 [2022-12-05 20:25:06,774 INFO L175 Difference]: Start difference. First operand has 62 places, 25 transitions, 207 flow. Second operand 8 states and 39 transitions. [2022-12-05 20:25:06,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 33 transitions, 320 flow [2022-12-05 20:25:06,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 33 transitions, 254 flow, removed 13 selfloop flow, removed 13 redundant places. [2022-12-05 20:25:06,776 INFO L231 Difference]: Finished difference. Result has 55 places, 27 transitions, 196 flow [2022-12-05 20:25:06,777 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=196, PETRI_PLACES=55, PETRI_TRANSITIONS=27} [2022-12-05 20:25:06,777 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, 27 predicate places. [2022-12-05 20:25:06,777 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 27 transitions, 196 flow [2022-12-05 20:25:06,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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 20:25:06,777 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:25:06,777 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:25:06,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-05 20:25:06,777 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 20:25:06,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:25:06,778 INFO L85 PathProgramCache]: Analyzing trace with hash 403294198, now seen corresponding path program 1 times [2022-12-05 20:25:06,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:25:06,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901709997] [2022-12-05 20:25:06,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:25:06,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:25:06,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:25:07,740 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 20:25:07,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:25:07,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901709997] [2022-12-05 20:25:07,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901709997] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:25:07,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:25:07,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-05 20:25:07,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545941065] [2022-12-05 20:25:07,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:25:07,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-05 20:25:07,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:25:07,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-05 20:25:07,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-05 20:25:07,742 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 22 [2022-12-05 20:25:07,742 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 27 transitions, 196 flow. Second operand has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 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 20:25:07,742 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:25:07,742 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 22 [2022-12-05 20:25:07,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:25:07,978 INFO L130 PetriNetUnfolder]: 17/62 cut-off events. [2022-12-05 20:25:07,978 INFO L131 PetriNetUnfolder]: For 298/298 co-relation queries the response was YES. [2022-12-05 20:25:07,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 62 events. 17/62 cut-off events. For 298/298 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 118 event pairs, 2 based on Foata normal form. 4/66 useless extension candidates. Maximal degree in co-relation 271. Up to 20 conditions per place. [2022-12-05 20:25:07,978 INFO L137 encePairwiseOnDemand]: 12/22 looper letters, 12 selfloop transitions, 7 changer transitions 16/36 dead transitions. [2022-12-05 20:25:07,979 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 36 transitions, 316 flow [2022-12-05 20:25:07,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-05 20:25:07,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-05 20:25:07,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 46 transitions. [2022-12-05 20:25:07,979 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.17424242424242425 [2022-12-05 20:25:07,980 INFO L175 Difference]: Start difference. First operand has 55 places, 27 transitions, 196 flow. Second operand 12 states and 46 transitions. [2022-12-05 20:25:07,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 36 transitions, 316 flow [2022-12-05 20:25:07,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 36 transitions, 298 flow, removed 3 selfloop flow, removed 5 redundant places. [2022-12-05 20:25:07,981 INFO L231 Difference]: Finished difference. Result has 62 places, 17 transitions, 122 flow [2022-12-05 20:25:07,981 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=122, PETRI_PLACES=62, PETRI_TRANSITIONS=17} [2022-12-05 20:25:07,981 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, 34 predicate places. [2022-12-05 20:25:07,981 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 17 transitions, 122 flow [2022-12-05 20:25:07,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 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 20:25:07,982 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:25:07,982 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:25:07,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-05 20:25:07,982 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 20:25:07,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:25:07,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1684507818, now seen corresponding path program 2 times [2022-12-05 20:25:07,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:25:07,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198624] [2022-12-05 20:25:07,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:25:07,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:25:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:25:08,762 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 20:25:08,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:25:08,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198624] [2022-12-05 20:25:08,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198624] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:25:08,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:25:08,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 20:25:08,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385394619] [2022-12-05 20:25:08,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:25:08,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-05 20:25:08,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:25:08,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-05 20:25:08,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-05 20:25:08,763 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 22 [2022-12-05 20:25:08,763 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 17 transitions, 122 flow. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 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 20:25:08,763 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:25:08,763 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 22 [2022-12-05 20:25:08,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:25:08,927 INFO L130 PetriNetUnfolder]: 7/30 cut-off events. [2022-12-05 20:25:08,927 INFO L131 PetriNetUnfolder]: For 158/158 co-relation queries the response was YES. [2022-12-05 20:25:08,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 30 events. 7/30 cut-off events. For 158/158 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs, 1 based on Foata normal form. 4/34 useless extension candidates. Maximal degree in co-relation 134. Up to 12 conditions per place. [2022-12-05 20:25:08,927 INFO L137 encePairwiseOnDemand]: 15/22 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2022-12-05 20:25:08,927 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 19 transitions, 162 flow [2022-12-05 20:25:08,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 20:25:08,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 20:25:08,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 25 transitions. [2022-12-05 20:25:08,928 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.1893939393939394 [2022-12-05 20:25:08,928 INFO L175 Difference]: Start difference. First operand has 62 places, 17 transitions, 122 flow. Second operand 6 states and 25 transitions. [2022-12-05 20:25:08,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 19 transitions, 162 flow [2022-12-05 20:25:08,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 19 transitions, 121 flow, removed 2 selfloop flow, removed 19 redundant places. [2022-12-05 20:25:08,929 INFO L231 Difference]: Finished difference. Result has 38 places, 0 transitions, 0 flow [2022-12-05 20:25:08,929 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=38, PETRI_TRANSITIONS=0} [2022-12-05 20:25:08,929 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, 10 predicate places. [2022-12-05 20:25:08,929 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 0 transitions, 0 flow [2022-12-05 20:25:08,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 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 20:25:08,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-05 20:25:08,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-05 20:25:08,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-05 20:25:08,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-05 20:25:08,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-12-05 20:25:08,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-05 20:25:08,932 INFO L458 BasicCegarLoop]: Path program histogram: [5, 4, 3, 2, 1, 1, 1, 1] [2022-12-05 20:25:08,935 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 20:25:08,936 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 20:25:08,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 08:25:08 BasicIcfg [2022-12-05 20:25:08,940 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 20:25:08,940 INFO L158 Benchmark]: Toolchain (without parser) took 18877.96ms. Allocated memory was 197.1MB in the beginning and 690.0MB in the end (delta: 492.8MB). Free memory was 172.1MB in the beginning and 321.3MB in the end (delta: -149.2MB). Peak memory consumption was 345.7MB. Max. memory is 8.0GB. [2022-12-05 20:25:08,940 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 197.1MB. Free memory is still 173.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:25:08,941 INFO L158 Benchmark]: CACSL2BoogieTranslator took 457.26ms. Allocated memory is still 197.1MB. Free memory was 171.5MB in the beginning and 142.7MB in the end (delta: 28.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-12-05 20:25:08,941 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.83ms. Allocated memory is still 197.1MB. Free memory was 142.7MB in the beginning and 140.1MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-05 20:25:08,941 INFO L158 Benchmark]: Boogie Preprocessor took 49.95ms. Allocated memory is still 197.1MB. Free memory was 140.1MB in the beginning and 138.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 20:25:08,941 INFO L158 Benchmark]: RCFGBuilder took 671.78ms. Allocated memory is still 197.1MB. Free memory was 137.5MB in the beginning and 91.3MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 8.0GB. [2022-12-05 20:25:08,941 INFO L158 Benchmark]: TraceAbstraction took 17633.24ms. Allocated memory was 197.1MB in the beginning and 690.0MB in the end (delta: 492.8MB). Free memory was 90.8MB in the beginning and 321.3MB in the end (delta: -230.5MB). Peak memory consumption was 263.9MB. Max. memory is 8.0GB. [2022-12-05 20:25:08,942 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 197.1MB. Free memory is still 173.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 457.26ms. Allocated memory is still 197.1MB. Free memory was 171.5MB in the beginning and 142.7MB in the end (delta: 28.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.83ms. Allocated memory is still 197.1MB. Free memory was 142.7MB in the beginning and 140.1MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 49.95ms. Allocated memory is still 197.1MB. Free memory was 140.1MB in the beginning and 138.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 671.78ms. Allocated memory is still 197.1MB. Free memory was 137.5MB in the beginning and 91.3MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 8.0GB. * TraceAbstraction took 17633.24ms. Allocated memory was 197.1MB in the beginning and 690.0MB in the end (delta: 492.8MB). Free memory was 90.8MB in the beginning and 321.3MB in the end (delta: -230.5MB). Peak memory consumption was 263.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6s, 95 PlacesBefore, 28 PlacesAfterwards, 90 TransitionsBefore, 22 TransitionsAfterwards, 1244 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 36 TrivialYvCompositions, 33 ConcurrentYvCompositions, 1 ChoiceCompositions, 71 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 896, independent: 847, independent conditional: 847, independent unconditional: 0, dependent: 49, dependent conditional: 49, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 896, independent: 847, independent conditional: 0, independent unconditional: 847, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 896, independent: 847, independent conditional: 0, independent unconditional: 847, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 896, independent: 847, independent conditional: 0, independent unconditional: 847, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 755, independent: 722, independent conditional: 0, independent unconditional: 722, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 755, independent: 720, independent conditional: 0, independent unconditional: 720, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 35, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 193, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 190, dependent conditional: 0, dependent unconditional: 190, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 896, independent: 125, independent conditional: 0, independent unconditional: 125, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 755, unknown conditional: 0, unknown unconditional: 755] , Statistics on independence cache: Total cache size (in pairs): 1068, Positive cache size: 1035, Positive conditional cache size: 0, Positive unconditional cache size: 1035, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - 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: 17.5s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 420 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 420 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 260 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1703 IncrementalHoareTripleChecker+Invalid, 1963 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 260 mSolverCounterUnsat, 2 mSDtfsCounter, 1703 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 153 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=775occurred in iteration=11, InterpolantAutomatonStates: 133, 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, 0.3s SatisfiabilityAnalysisTime, 9.6s InterpolantComputationTime, 221 NumberOfCodeBlocks, 221 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 203 ConstructedInterpolants, 0 QuantifiedInterpolants, 3751 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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 20:25:08,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...