/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:41:16,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:41:16,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:41:16,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:41:16,491 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:41:16,493 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:41:16,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:41:16,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:41:16,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:41:16,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:41:16,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:41:16,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:41:16,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:41:16,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:41:16,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:41:16,514 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:41:16,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:41:16,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:41:16,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:41:16,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:41:16,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:41:16,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:41:16,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:41:16,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:41:16,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:41:16,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:41:16,526 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:41:16,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:41:16,526 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:41:16,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 16:41:16,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 16:41:16,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 16:41:16,528 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 16:41:16,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 16:41:16,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 16:41:16,529 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 16:41:16,529 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 16:41:16,529 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 16:41:16,530 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:41:16,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:41:16,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:41:16,536 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-06 16:41:16,560 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:41:16,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:41:16,561 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:41:16,562 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:41:16,562 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:41:16,562 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:41:16,563 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:41:16,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:41:16,563 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:41:16,563 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:41:16,563 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:41:16,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:41:16,564 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:41:16,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:41:16,564 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:41:16,564 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:41:16,564 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:41:16,564 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:41:16,564 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:41:16,564 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:41:16,565 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:41:16,565 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:41:16,565 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:41:16,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:41:16,565 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:41:16,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:41:16,565 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:41:16,565 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:41:16,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:41:16,565 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:41:16,566 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:41:16,566 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:41:16,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:41:16,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:41:16,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:41:16,834 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:41:16,834 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:41:16,835 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-06 16:41:17,788 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:41:18,025 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:41:18,026 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-06 16:41:18,034 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0cbdf7d9/bd7e08ac53604a5eb9cb4a0dd28404b3/FLAG16a998ef3 [2022-12-06 16:41:18,046 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0cbdf7d9/bd7e08ac53604a5eb9cb4a0dd28404b3 [2022-12-06 16:41:18,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:41:18,049 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:41:18,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:41:18,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:41:18,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:41:18,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:41:18" (1/1) ... [2022-12-06 16:41:18,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cb5fd0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:41:18, skipping insertion in model container [2022-12-06 16:41:18,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:41:18" (1/1) ... [2022-12-06 16:41:18,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:41:18,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:41:18,180 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/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-06 16:41:18,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,323 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,323 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,323 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,323 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,324 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,324 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,324 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,324 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,325 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,325 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,325 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,325 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,325 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,325 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,326 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,326 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,326 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,326 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,326 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,327 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,327 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,328 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,329 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,329 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,330 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,331 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,331 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,331 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,331 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,338 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,340 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,341 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,341 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,341 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,342 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:41:18,353 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:41:18,363 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/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-06 16:41:18,377 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,380 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,380 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,380 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,380 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,380 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,392 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,392 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,392 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:41:18,393 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:41:18,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:41:18,428 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:41:18,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:41:18 WrapperNode [2022-12-06 16:41:18,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:41:18,430 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:41:18,430 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:41:18,430 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:41:18,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:41:18" (1/1) ... [2022-12-06 16:41:18,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:41:18" (1/1) ... [2022-12-06 16:41:18,476 INFO L138 Inliner]: procedures = 177, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 85 [2022-12-06 16:41:18,477 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:41:18,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:41:18,478 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:41:18,478 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:41:18,485 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:41:18" (1/1) ... [2022-12-06 16:41:18,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:41:18" (1/1) ... [2022-12-06 16:41:18,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:41:18" (1/1) ... [2022-12-06 16:41:18,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:41:18" (1/1) ... [2022-12-06 16:41:18,503 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:41:18" (1/1) ... [2022-12-06 16:41:18,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:41:18" (1/1) ... [2022-12-06 16:41:18,505 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:41:18" (1/1) ... [2022-12-06 16:41:18,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:41:18" (1/1) ... [2022-12-06 16:41:18,517 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:41:18,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:41:18,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:41:18,518 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:41:18,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:41:18" (1/1) ... [2022-12-06 16:41:18,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:41:18,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:41:18,559 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) [2022-12-06 16:41:18,626 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 [2022-12-06 16:41:18,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:41:18,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 16:41:18,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:41:18,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:41:18,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:41:18,656 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-06 16:41:18,656 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-06 16:41:18,656 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-06 16:41:18,656 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-06 16:41:18,657 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-06 16:41:18,657 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-06 16:41:18,657 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-06 16:41:18,657 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-06 16:41:18,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:41:18,657 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 16:41:18,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:41:18,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:41:18,659 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 16:41:18,816 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:41:18,818 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:41:18,947 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:41:18,954 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:41:18,954 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 16:41:18,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:41:18 BoogieIcfgContainer [2022-12-06 16:41:18,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:41:18,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:41:18,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:41:18,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:41:18,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:41:18" (1/3) ... [2022-12-06 16:41:18,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56645769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:41:18, skipping insertion in model container [2022-12-06 16:41:18,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:41:18" (2/3) ... [2022-12-06 16:41:18,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56645769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:41:18, skipping insertion in model container [2022-12-06 16:41:18,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:41:18" (3/3) ... [2022-12-06 16:41:18,962 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-06 16:41:18,977 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:41:18,977 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 16:41:18,978 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:41:19,043 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 16:41:19,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 115 places, 104 transitions, 228 flow [2022-12-06 16:41:19,143 INFO L130 PetriNetUnfolder]: 2/100 cut-off events. [2022-12-06 16:41:19,143 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:41:19,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 100 events. 2/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 58 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 81. Up to 2 conditions per place. [2022-12-06 16:41:19,147 INFO L82 GeneralOperation]: Start removeDead. Operand has 115 places, 104 transitions, 228 flow [2022-12-06 16:41:19,152 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 86 transitions, 184 flow [2022-12-06 16:41:19,163 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:41:19,169 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;@15e2f3c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:41:19,169 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-06 16:41:19,198 INFO L130 PetriNetUnfolder]: 1/85 cut-off events. [2022-12-06 16:41:19,199 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:41:19,201 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:41:19,201 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:41:19,208 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:41:19,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:41:19,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1780733115, now seen corresponding path program 1 times [2022-12-06 16:41:19,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:41:19,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791982015] [2022-12-06 16:41:19,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:41:19,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:41:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:41:19,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:41:19,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:41:19,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791982015] [2022-12-06 16:41:19,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791982015] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:41:19,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:41:19,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:41:19,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852358715] [2022-12-06 16:41:19,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:41:19,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:41:19,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:41:19,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:41:19,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:41:19,977 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 104 [2022-12-06 16:41:19,980 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 86 transitions, 184 flow. Second operand has 6 states, 6 states have (on average 89.83333333333333) internal successors, (539), 6 states have internal predecessors, (539), 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) [2022-12-06 16:41:19,980 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:41:19,980 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 104 [2022-12-06 16:41:19,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:41:20,085 INFO L130 PetriNetUnfolder]: 6/126 cut-off events. [2022-12-06 16:41:20,086 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-06 16:41:20,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 126 events. 6/126 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 196 event pairs, 0 based on Foata normal form. 4/129 useless extension candidates. Maximal degree in co-relation 139. Up to 13 conditions per place. [2022-12-06 16:41:20,087 INFO L137 encePairwiseOnDemand]: 97/104 looper letters, 13 selfloop transitions, 2 changer transitions 11/98 dead transitions. [2022-12-06 16:41:20,088 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 98 transitions, 267 flow [2022-12-06 16:41:20,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 16:41:20,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 16:41:20,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 821 transitions. [2022-12-06 16:41:20,100 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8771367521367521 [2022-12-06 16:41:20,102 INFO L294 CegarLoopForPetriNet]: 98 programPoint places, 8 predicate places. [2022-12-06 16:41:20,102 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 98 transitions, 267 flow [2022-12-06 16:41:20,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 89.83333333333333) internal successors, (539), 6 states have internal predecessors, (539), 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) [2022-12-06 16:41:20,103 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:41:20,103 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:41:20,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:41:20,104 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:41:20,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:41:20,104 INFO L85 PathProgramCache]: Analyzing trace with hash -343659922, now seen corresponding path program 1 times [2022-12-06 16:41:20,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:41:20,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845036505] [2022-12-06 16:41:20,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:41:20,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:41:20,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:41:20,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:41:20,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:41:20,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845036505] [2022-12-06 16:41:20,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845036505] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:41:20,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:41:20,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:41:20,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652694556] [2022-12-06 16:41:20,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:41:20,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:41:20,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:41:20,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:41:20,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:41:20,282 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 104 [2022-12-06 16:41:20,283 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 98 transitions, 267 flow. Second operand has 7 states, 7 states have (on average 82.28571428571429) internal successors, (576), 7 states have internal predecessors, (576), 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) [2022-12-06 16:41:20,283 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:41:20,283 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 104 [2022-12-06 16:41:20,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:41:20,697 INFO L130 PetriNetUnfolder]: 719/2016 cut-off events. [2022-12-06 16:41:20,698 INFO L131 PetriNetUnfolder]: For 296/377 co-relation queries the response was YES. [2022-12-06 16:41:20,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3721 conditions, 2016 events. 719/2016 cut-off events. For 296/377 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 16367 event pairs, 57 based on Foata normal form. 38/2027 useless extension candidates. Maximal degree in co-relation 3677. Up to 257 conditions per place. [2022-12-06 16:41:20,713 INFO L137 encePairwiseOnDemand]: 93/104 looper letters, 32 selfloop transitions, 10 changer transitions 107/214 dead transitions. [2022-12-06 16:41:20,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 214 transitions, 953 flow [2022-12-06 16:41:20,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-06 16:41:20,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-06 16:41:20,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1466 transitions. [2022-12-06 16:41:20,719 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.829185520361991 [2022-12-06 16:41:20,719 INFO L294 CegarLoopForPetriNet]: 98 programPoint places, 24 predicate places. [2022-12-06 16:41:20,719 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 214 transitions, 953 flow [2022-12-06 16:41:20,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.28571428571429) internal successors, (576), 7 states have internal predecessors, (576), 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) [2022-12-06 16:41:20,720 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:41:20,720 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:41:20,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 16:41:20,720 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:41:20,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:41:20,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1631309779, now seen corresponding path program 1 times [2022-12-06 16:41:20,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:41:20,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129271211] [2022-12-06 16:41:20,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:41:20,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:41:20,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:41:20,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:41:20,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:41:20,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129271211] [2022-12-06 16:41:20,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129271211] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:41:20,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:41:20,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:41:20,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170500718] [2022-12-06 16:41:20,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:41:20,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:41:20,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:41:20,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:41:20,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:41:20,945 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 104 [2022-12-06 16:41:20,946 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 214 transitions, 953 flow. Second operand has 7 states, 7 states have (on average 84.28571428571429) internal successors, (590), 7 states have internal predecessors, (590), 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) [2022-12-06 16:41:20,946 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:41:20,946 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 104 [2022-12-06 16:41:20,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:41:21,271 INFO L130 PetriNetUnfolder]: 848/2244 cut-off events. [2022-12-06 16:41:21,271 INFO L131 PetriNetUnfolder]: For 812/1761 co-relation queries the response was YES. [2022-12-06 16:41:21,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5521 conditions, 2244 events. 848/2244 cut-off events. For 812/1761 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 18413 event pairs, 0 based on Foata normal form. 20/2233 useless extension candidates. Maximal degree in co-relation 5470. Up to 419 conditions per place. [2022-12-06 16:41:21,283 INFO L137 encePairwiseOnDemand]: 97/104 looper letters, 40 selfloop transitions, 4 changer transitions 257/369 dead transitions. [2022-12-06 16:41:21,283 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 369 transitions, 2309 flow [2022-12-06 16:41:21,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 16:41:21,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 16:41:21,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 871 transitions. [2022-12-06 16:41:21,286 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8375 [2022-12-06 16:41:21,286 INFO L294 CegarLoopForPetriNet]: 98 programPoint places, 33 predicate places. [2022-12-06 16:41:21,286 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 369 transitions, 2309 flow [2022-12-06 16:41:21,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 84.28571428571429) internal successors, (590), 7 states have internal predecessors, (590), 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) [2022-12-06 16:41:21,287 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:41:21,287 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:41:21,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 16:41:21,287 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:41:21,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:41:21,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1891037211, now seen corresponding path program 1 times [2022-12-06 16:41:21,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:41:21,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572291100] [2022-12-06 16:41:21,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:41:21,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:41:21,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:41:21,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:41:21,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:41:21,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572291100] [2022-12-06 16:41:21,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572291100] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:41:21,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:41:21,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:41:21,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282836721] [2022-12-06 16:41:21,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:41:21,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:41:21,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:41:21,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:41:21,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:41:21,451 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 104 [2022-12-06 16:41:21,452 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 369 transitions, 2309 flow. Second operand has 7 states, 7 states have (on average 82.42857142857143) internal successors, (577), 7 states have internal predecessors, (577), 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) [2022-12-06 16:41:21,452 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:41:21,452 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 104 [2022-12-06 16:41:21,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:41:22,354 INFO L130 PetriNetUnfolder]: 2090/5522 cut-off events. [2022-12-06 16:41:22,354 INFO L131 PetriNetUnfolder]: For 5176/8636 co-relation queries the response was YES. [2022-12-06 16:41:22,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15580 conditions, 5522 events. 2090/5522 cut-off events. For 5176/8636 co-relation queries the response was YES. Maximal size of possible extension queue 574. Compared 55567 event pairs, 2 based on Foata normal form. 88/5576 useless extension candidates. Maximal degree in co-relation 15521. Up to 1027 conditions per place. [2022-12-06 16:41:22,382 INFO L137 encePairwiseOnDemand]: 93/104 looper letters, 65 selfloop transitions, 19 changer transitions 818/968 dead transitions. [2022-12-06 16:41:22,382 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 968 transitions, 8388 flow [2022-12-06 16:41:22,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-06 16:41:22,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-06 16:41:22,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1468 transitions. [2022-12-06 16:41:22,386 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.830316742081448 [2022-12-06 16:41:22,388 INFO L294 CegarLoopForPetriNet]: 98 programPoint places, 49 predicate places. [2022-12-06 16:41:22,388 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 968 transitions, 8388 flow [2022-12-06 16:41:22,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.42857142857143) internal successors, (577), 7 states have internal predecessors, (577), 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) [2022-12-06 16:41:22,388 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:41:22,389 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:41:22,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 16:41:22,389 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:41:22,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:41:22,390 INFO L85 PathProgramCache]: Analyzing trace with hash -24218699, now seen corresponding path program 1 times [2022-12-06 16:41:22,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:41:22,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045251518] [2022-12-06 16:41:22,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:41:22,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:41:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:41:22,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:41:22,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:41:22,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045251518] [2022-12-06 16:41:22,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045251518] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:41:22,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:41:22,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:41:22,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619330942] [2022-12-06 16:41:22,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:41:22,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:41:22,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:41:22,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:41:22,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:41:22,582 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 104 [2022-12-06 16:41:22,582 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 968 transitions, 8388 flow. Second operand has 7 states, 7 states have (on average 84.28571428571429) internal successors, (590), 7 states have internal predecessors, (590), 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) [2022-12-06 16:41:22,582 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:41:22,582 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 104 [2022-12-06 16:41:22,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:41:23,446 INFO L130 PetriNetUnfolder]: 2432/7067 cut-off events. [2022-12-06 16:41:23,446 INFO L131 PetriNetUnfolder]: For 12252/16693 co-relation queries the response was YES. [2022-12-06 16:41:23,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22338 conditions, 7067 events. 2432/7067 cut-off events. For 12252/16693 co-relation queries the response was YES. Maximal size of possible extension queue 835. Compared 80386 event pairs, 0 based on Foata normal form. 100/7145 useless extension candidates. Maximal degree in co-relation 22272. Up to 1224 conditions per place. [2022-12-06 16:41:23,518 INFO L137 encePairwiseOnDemand]: 97/104 looper letters, 86 selfloop transitions, 11 changer transitions 1476/1642 dead transitions. [2022-12-06 16:41:23,518 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 1642 transitions, 17961 flow [2022-12-06 16:41:23,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 16:41:23,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 16:41:23,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 872 transitions. [2022-12-06 16:41:23,521 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8384615384615385 [2022-12-06 16:41:23,521 INFO L294 CegarLoopForPetriNet]: 98 programPoint places, 58 predicate places. [2022-12-06 16:41:23,521 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 1642 transitions, 17961 flow [2022-12-06 16:41:23,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 84.28571428571429) internal successors, (590), 7 states have internal predecessors, (590), 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) [2022-12-06 16:41:23,522 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:41:23,522 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:41:23,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 16:41:23,522 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:41:23,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:41:23,523 INFO L85 PathProgramCache]: Analyzing trace with hash -472839452, now seen corresponding path program 1 times [2022-12-06 16:41:23,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:41:23,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947877425] [2022-12-06 16:41:23,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:41:23,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:41:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:41:23,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:41:23,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:41:23,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947877425] [2022-12-06 16:41:23,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947877425] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:41:23,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:41:23,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:41:23,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673702692] [2022-12-06 16:41:23,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:41:23,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:41:23,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:41:23,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:41:23,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:41:23,641 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 104 [2022-12-06 16:41:23,641 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 1642 transitions, 17961 flow. Second operand has 7 states, 7 states have (on average 87.85714285714286) internal successors, (615), 7 states have internal predecessors, (615), 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) [2022-12-06 16:41:23,641 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:41:23,641 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 104 [2022-12-06 16:41:23,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:41:24,730 INFO L130 PetriNetUnfolder]: 2557/6754 cut-off events. [2022-12-06 16:41:24,730 INFO L131 PetriNetUnfolder]: For 14205/22994 co-relation queries the response was YES. [2022-12-06 16:41:24,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25005 conditions, 6754 events. 2557/6754 cut-off events. For 14205/22994 co-relation queries the response was YES. Maximal size of possible extension queue 770. Compared 71334 event pairs, 0 based on Foata normal form. 363/7103 useless extension candidates. Maximal degree in co-relation 24934. Up to 1295 conditions per place. [2022-12-06 16:41:24,754 INFO L137 encePairwiseOnDemand]: 96/104 looper letters, 19 selfloop transitions, 9 changer transitions 1591/1712 dead transitions. [2022-12-06 16:41:24,754 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 1712 transitions, 21013 flow [2022-12-06 16:41:24,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:41:24,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:41:24,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1155 transitions. [2022-12-06 16:41:24,757 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8542899408284024 [2022-12-06 16:41:24,757 INFO L294 CegarLoopForPetriNet]: 98 programPoint places, 70 predicate places. [2022-12-06 16:41:24,757 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 1712 transitions, 21013 flow [2022-12-06 16:41:24,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.85714285714286) internal successors, (615), 7 states have internal predecessors, (615), 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) [2022-12-06 16:41:24,758 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:41:24,758 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:41:24,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 16:41:24,758 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:41:24,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:41:24,758 INFO L85 PathProgramCache]: Analyzing trace with hash -311026736, now seen corresponding path program 1 times [2022-12-06 16:41:24,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:41:24,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664331629] [2022-12-06 16:41:24,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:41:24,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:41:24,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:41:24,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:41:24,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:41:24,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664331629] [2022-12-06 16:41:24,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664331629] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:41:24,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:41:24,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:41:24,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366535443] [2022-12-06 16:41:24,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:41:24,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:41:24,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:41:24,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:41:24,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:41:24,878 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 104 [2022-12-06 16:41:24,879 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 1712 transitions, 21013 flow. Second operand has 8 states, 8 states have (on average 82.25) internal successors, (658), 8 states have internal predecessors, (658), 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) [2022-12-06 16:41:24,879 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:41:24,879 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 104 [2022-12-06 16:41:24,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:41:26,191 INFO L130 PetriNetUnfolder]: 2812/7276 cut-off events. [2022-12-06 16:41:26,192 INFO L131 PetriNetUnfolder]: For 19166/41545 co-relation queries the response was YES. [2022-12-06 16:41:26,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32155 conditions, 7276 events. 2812/7276 cut-off events. For 19166/41545 co-relation queries the response was YES. Maximal size of possible extension queue 898. Compared 77886 event pairs, 0 based on Foata normal form. 443/7690 useless extension candidates. Maximal degree in co-relation 32076. Up to 1469 conditions per place. [2022-12-06 16:41:26,314 INFO L137 encePairwiseOnDemand]: 95/104 looper letters, 24 selfloop transitions, 5 changer transitions 1846/1940 dead transitions. [2022-12-06 16:41:26,314 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 1940 transitions, 27625 flow [2022-12-06 16:41:26,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-06 16:41:26,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-06 16:41:26,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1189 transitions. [2022-12-06 16:41:26,320 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8166208791208791 [2022-12-06 16:41:26,320 INFO L294 CegarLoopForPetriNet]: 98 programPoint places, 83 predicate places. [2022-12-06 16:41:26,320 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 1940 transitions, 27625 flow [2022-12-06 16:41:26,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 82.25) internal successors, (658), 8 states have internal predecessors, (658), 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) [2022-12-06 16:41:26,321 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:41:26,321 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:41:26,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 16:41:26,321 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:41:26,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:41:26,322 INFO L85 PathProgramCache]: Analyzing trace with hash -708541404, now seen corresponding path program 1 times [2022-12-06 16:41:26,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:41:26,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336795147] [2022-12-06 16:41:26,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:41:26,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:41:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:41:26,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:41:26,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:41:26,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336795147] [2022-12-06 16:41:26,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336795147] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:41:26,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:41:26,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:41:26,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064392150] [2022-12-06 16:41:26,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:41:26,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:41:26,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:41:26,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:41:26,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:41:26,486 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 104 [2022-12-06 16:41:26,487 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 1940 transitions, 27625 flow. Second operand has 8 states, 8 states have (on average 82.25) internal successors, (658), 8 states have internal predecessors, (658), 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) [2022-12-06 16:41:26,487 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:41:26,488 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 104 [2022-12-06 16:41:26,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:41:28,933 INFO L130 PetriNetUnfolder]: 6092/14102 cut-off events. [2022-12-06 16:41:28,934 INFO L131 PetriNetUnfolder]: For 51313/74858 co-relation queries the response was YES. [2022-12-06 16:41:29,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68763 conditions, 14102 events. 6092/14102 cut-off events. For 51313/74858 co-relation queries the response was YES. Maximal size of possible extension queue 1613. Compared 154708 event pairs, 0 based on Foata normal form. 401/14479 useless extension candidates. Maximal degree in co-relation 68676. Up to 2549 conditions per place. [2022-12-06 16:41:29,021 INFO L137 encePairwiseOnDemand]: 95/104 looper letters, 21 selfloop transitions, 5 changer transitions 4233/4324 dead transitions. [2022-12-06 16:41:29,022 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 4324 transitions, 73227 flow [2022-12-06 16:41:29,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-06 16:41:29,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-06 16:41:29,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1191 transitions. [2022-12-06 16:41:29,024 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8179945054945055 [2022-12-06 16:41:29,025 INFO L294 CegarLoopForPetriNet]: 98 programPoint places, 96 predicate places. [2022-12-06 16:41:29,025 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 4324 transitions, 73227 flow [2022-12-06 16:41:29,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 82.25) internal successors, (658), 8 states have internal predecessors, (658), 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) [2022-12-06 16:41:29,025 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:41:29,025 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:41:29,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 16:41:29,026 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:41:29,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:41:29,026 INFO L85 PathProgramCache]: Analyzing trace with hash 554310887, now seen corresponding path program 1 times [2022-12-06 16:41:29,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:41:29,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112645817] [2022-12-06 16:41:29,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:41:29,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:41:29,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:41:29,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:41:29,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:41:29,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112645817] [2022-12-06 16:41:29,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112645817] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:41:29,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:41:29,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:41:29,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760592651] [2022-12-06 16:41:29,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:41:29,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:41:29,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:41:29,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:41:29,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:41:29,159 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 104 [2022-12-06 16:41:29,160 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 4324 transitions, 73227 flow. Second operand has 7 states, 7 states have (on average 87.85714285714286) internal successors, (615), 7 states have internal predecessors, (615), 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) [2022-12-06 16:41:29,160 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:41:29,160 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 104 [2022-12-06 16:41:29,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:41:37,107 INFO L130 PetriNetUnfolder]: 14418/27389 cut-off events. [2022-12-06 16:41:37,107 INFO L131 PetriNetUnfolder]: For 154948/241534 co-relation queries the response was YES. [2022-12-06 16:41:37,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144146 conditions, 27389 events. 14418/27389 cut-off events. For 154948/241534 co-relation queries the response was YES. Maximal size of possible extension queue 2793. Compared 278488 event pairs, 0 based on Foata normal form. 867/28209 useless extension candidates. Maximal degree in co-relation 144054. Up to 5039 conditions per place. [2022-12-06 16:41:37,277 INFO L137 encePairwiseOnDemand]: 96/104 looper letters, 0 selfloop transitions, 0 changer transitions 8257/8257 dead transitions. [2022-12-06 16:41:37,277 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 8257 transitions, 156748 flow [2022-12-06 16:41:37,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:41:37,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:41:37,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1159 transitions. [2022-12-06 16:41:37,280 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8572485207100592 [2022-12-06 16:41:37,280 INFO L294 CegarLoopForPetriNet]: 98 programPoint places, 106 predicate places. [2022-12-06 16:41:37,280 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 8257 transitions, 156748 flow [2022-12-06 16:41:37,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.85714285714286) internal successors, (615), 7 states have internal predecessors, (615), 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) [2022-12-06 16:41:37,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-06 16:41:37,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2022-12-06 16:41:37,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-06 16:41:37,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-06 16:41:37,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-06 16:41:37,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-06 16:41:37,284 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:41:37,286 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:41:37,286 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:41:37,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:41:37 BasicIcfg [2022-12-06 16:41:37,289 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:41:37,289 INFO L158 Benchmark]: Toolchain (without parser) took 19240.44ms. Allocated memory was 179.3MB in the beginning and 4.2GB in the end (delta: 4.1GB). Free memory was 153.7MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2022-12-06 16:41:37,289 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 179.3MB. Free memory was 155.4MB in the beginning and 155.3MB in the end (delta: 91.7kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:41:37,290 INFO L158 Benchmark]: CACSL2BoogieTranslator took 379.53ms. Allocated memory is still 179.3MB. Free memory was 153.2MB in the beginning and 129.1MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-12-06 16:41:37,290 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.35ms. Allocated memory is still 179.3MB. Free memory was 129.1MB in the beginning and 127.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:41:37,290 INFO L158 Benchmark]: Boogie Preprocessor took 39.57ms. Allocated memory is still 179.3MB. Free memory was 127.0MB in the beginning and 125.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 16:41:37,290 INFO L158 Benchmark]: RCFGBuilder took 437.91ms. Allocated memory is still 179.3MB. Free memory was 125.4MB in the beginning and 110.2MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-12-06 16:41:37,290 INFO L158 Benchmark]: TraceAbstraction took 18331.33ms. Allocated memory was 179.3MB in the beginning and 4.2GB in the end (delta: 4.1GB). Free memory was 109.2MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2022-12-06 16:41:37,291 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 179.3MB. Free memory was 155.4MB in the beginning and 155.3MB in the end (delta: 91.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 379.53ms. Allocated memory is still 179.3MB. Free memory was 153.2MB in the beginning and 129.1MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.35ms. Allocated memory is still 179.3MB. Free memory was 129.1MB in the beginning and 127.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.57ms. Allocated memory is still 179.3MB. Free memory was 127.0MB in the beginning and 125.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 437.91ms. Allocated memory is still 179.3MB. Free memory was 125.4MB in the beginning and 110.2MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 18331.33ms. Allocated memory was 179.3MB in the beginning and 4.2GB in the end (delta: 4.1GB). Free memory was 109.2MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 135 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: 18.2s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 16.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 517 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 517 mSDsluCounter, 703 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 526 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 614 IncrementalHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 177 mSDtfsCounter, 614 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=156748occurred in iteration=9, InterpolantAutomatonStates: 117, 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, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 587 NumberOfCodeBlocks, 587 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 578 ConstructedInterpolants, 0 QuantifiedInterpolants, 2340 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 16:41:37,303 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...