/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/safe004_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:35:12,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:35:12,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:35:12,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:35:12,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:35:12,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:35:12,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:35:12,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:35:12,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:35:12,283 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:35:12,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:35:12,286 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:35:12,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:35:12,288 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:35:12,289 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:35:12,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:35:12,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:35:12,293 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:35:12,295 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:35:12,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:35:12,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:35:12,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:35:12,303 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:35:12,304 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:35:12,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:35:12,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:35:12,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:35:12,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:35:12,313 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:35:12,314 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 16:35:12,314 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 16:35:12,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 16:35:12,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 16:35:12,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 16:35:12,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 16:35:12,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 16:35:12,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 16:35:12,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 16:35:12,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:35:12,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:35:12,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:35:12,326 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 16:35:12,358 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:35:12,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:35:12,360 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:35:12,360 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:35:12,360 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:35:12,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:35:12,361 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:35:12,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:35:12,362 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:35:12,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:35:12,362 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:35:12,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:35:12,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:35:12,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:35:12,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:35:12,363 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:35:12,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:35:12,363 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:35:12,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:35:12,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:35:12,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:35:12,364 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:35:12,364 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:35:12,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:35:12,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:35:12,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:35:12,365 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:35:12,365 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:35:12,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:35:12,365 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:35:12,365 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:35:12,365 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:35:12,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:35:12,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:35:12,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:35:12,709 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:35:12,710 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:35:12,711 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe004_power.oepc_pso.oepc_rmo.oepc.i [2022-12-06 16:35:13,835 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:35:14,143 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:35:14,144 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe004_power.oepc_pso.oepc_rmo.oepc.i [2022-12-06 16:35:14,154 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0826bdb90/bfc33403be024d3e8ac0f737b1ce75fb/FLAGacbb697c8 [2022-12-06 16:35:14,166 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0826bdb90/bfc33403be024d3e8ac0f737b1ce75fb [2022-12-06 16:35:14,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:35:14,169 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:35:14,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:35:14,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:35:14,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:35:14,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:35:14" (1/1) ... [2022-12-06 16:35:14,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6eb8b332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:14, skipping insertion in model container [2022-12-06 16:35:14,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:35:14" (1/1) ... [2022-12-06 16:35:14,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:35:14,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:35:14,339 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/safe004_power.oepc_pso.oepc_rmo.oepc.i[970,983] [2022-12-06 16:35:14,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,453 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,453 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,453 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,453 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,456 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,456 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,457 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,457 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,458 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,458 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,458 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,458 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,461 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,461 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,461 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,462 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,485 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,485 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,486 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,488 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,488 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,494 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:35:14,503 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:35:14,514 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/safe004_power.oepc_pso.oepc_rmo.oepc.i[970,983] [2022-12-06 16:35:14,532 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,544 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,544 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,556 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,559 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:35:14,568 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:35:14,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:35:14,618 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:35:14,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:14 WrapperNode [2022-12-06 16:35:14,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:35:14,620 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:35:14,620 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:35:14,620 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:35:14,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:14" (1/1) ... [2022-12-06 16:35:14,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:14" (1/1) ... [2022-12-06 16:35:14,692 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 142 [2022-12-06 16:35:14,692 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:35:14,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:35:14,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:35:14,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:35:14,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:14" (1/1) ... [2022-12-06 16:35:14,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:14" (1/1) ... [2022-12-06 16:35:14,704 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:14" (1/1) ... [2022-12-06 16:35:14,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:14" (1/1) ... [2022-12-06 16:35:14,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:14" (1/1) ... [2022-12-06 16:35:14,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:14" (1/1) ... [2022-12-06 16:35:14,727 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:14" (1/1) ... [2022-12-06 16:35:14,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:14" (1/1) ... [2022-12-06 16:35:14,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:35:14,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:35:14,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:35:14,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:35:14,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:14" (1/1) ... [2022-12-06 16:35:14,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:35:14,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:35:14,767 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 16:35:14,781 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 16:35:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:35:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 16:35:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:35:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:35:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:35:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-06 16:35:14,810 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-06 16:35:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-06 16:35:14,811 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-06 16:35:14,811 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-06 16:35:14,811 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-06 16:35:14,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:35:14,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 16:35:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:35:14,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:35:14,813 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 16:35:14,948 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:35:14,949 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:35:15,396 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:35:15,560 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:35:15,560 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 16:35:15,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:35:15 BoogieIcfgContainer [2022-12-06 16:35:15,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:35:15,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:35:15,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:35:15,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:35:15,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:35:14" (1/3) ... [2022-12-06 16:35:15,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667f83b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:35:15, skipping insertion in model container [2022-12-06 16:35:15,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:14" (2/3) ... [2022-12-06 16:35:15,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667f83b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:35:15, skipping insertion in model container [2022-12-06 16:35:15,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:35:15" (3/3) ... [2022-12-06 16:35:15,570 INFO L112 eAbstractionObserver]: Analyzing ICFG safe004_power.oepc_pso.oepc_rmo.oepc.i [2022-12-06 16:35:15,588 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:35:15,588 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-06 16:35:15,588 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:35:15,636 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 16:35:15,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 115 places, 107 transitions, 229 flow [2022-12-06 16:35:15,726 INFO L130 PetriNetUnfolder]: 2/104 cut-off events. [2022-12-06 16:35:15,727 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:35:15,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 104 events. 2/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2022-12-06 16:35:15,731 INFO L82 GeneralOperation]: Start removeDead. Operand has 115 places, 107 transitions, 229 flow [2022-12-06 16:35:15,735 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 112 places, 104 transitions, 217 flow [2022-12-06 16:35:15,743 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:35:15,749 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;@66149898, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:35:15,749 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-06 16:35:15,759 INFO L130 PetriNetUnfolder]: 0/42 cut-off events. [2022-12-06 16:35:15,759 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:35:15,759 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:35:15,760 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] [2022-12-06 16:35:15,760 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 16:35:15,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:35:15,765 INFO L85 PathProgramCache]: Analyzing trace with hash -865884783, now seen corresponding path program 1 times [2022-12-06 16:35:15,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:35:15,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101806488] [2022-12-06 16:35:15,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:35:15,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:35:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:35:16,275 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 16:35:16,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:35:16,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101806488] [2022-12-06 16:35:16,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101806488] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:35:16,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:35:16,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 16:35:16,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100474736] [2022-12-06 16:35:16,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:35:16,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 16:35:16,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:35:16,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 16:35:16,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 16:35:16,327 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 107 [2022-12-06 16:35:16,330 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 104 transitions, 217 flow. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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 16:35:16,330 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:35:16,330 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 107 [2022-12-06 16:35:16,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:35:16,578 INFO L130 PetriNetUnfolder]: 124/521 cut-off events. [2022-12-06 16:35:16,578 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-06 16:35:16,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 752 conditions, 521 events. 124/521 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2845 event pairs, 24 based on Foata normal form. 27/518 useless extension candidates. Maximal degree in co-relation 704. Up to 155 conditions per place. [2022-12-06 16:35:16,587 INFO L137 encePairwiseOnDemand]: 102/107 looper letters, 18 selfloop transitions, 2 changer transitions 0/108 dead transitions. [2022-12-06 16:35:16,587 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 108 transitions, 271 flow [2022-12-06 16:35:16,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 16:35:16,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 16:35:16,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2022-12-06 16:35:16,604 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9283489096573209 [2022-12-06 16:35:16,609 INFO L294 CegarLoopForPetriNet]: 112 programPoint places, 0 predicate places. [2022-12-06 16:35:16,609 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 108 transitions, 271 flow [2022-12-06 16:35:16,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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 16:35:16,609 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:35:16,610 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 16:35:16,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:35:16,611 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 16:35:16,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:35:16,612 INFO L85 PathProgramCache]: Analyzing trace with hash -944563226, now seen corresponding path program 1 times [2022-12-06 16:35:16,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:35:16,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679581303] [2022-12-06 16:35:16,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:35:16,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:35:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:35:17,761 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 16:35:17,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:35:17,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679581303] [2022-12-06 16:35:17,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679581303] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:35:17,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:35:17,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:35:17,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974447929] [2022-12-06 16:35:17,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:35:17,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:35:17,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:35:17,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:35:17,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:35:17,765 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 107 [2022-12-06 16:35:17,766 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 108 transitions, 271 flow. Second operand has 7 states, 7 states have (on average 75.85714285714286) internal successors, (531), 7 states have internal predecessors, (531), 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 16:35:17,766 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:35:17,766 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 107 [2022-12-06 16:35:17,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:35:19,039 INFO L130 PetriNetUnfolder]: 1901/4095 cut-off events. [2022-12-06 16:35:19,039 INFO L131 PetriNetUnfolder]: For 866/3126 co-relation queries the response was YES. [2022-12-06 16:35:19,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8534 conditions, 4095 events. 1901/4095 cut-off events. For 866/3126 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 30182 event pairs, 240 based on Foata normal form. 0/3949 useless extension candidates. Maximal degree in co-relation 8473. Up to 1350 conditions per place. [2022-12-06 16:35:19,065 INFO L137 encePairwiseOnDemand]: 94/107 looper letters, 47 selfloop transitions, 10 changer transitions 104/222 dead transitions. [2022-12-06 16:35:19,066 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 222 transitions, 939 flow [2022-12-06 16:35:19,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:35:19,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:35:19,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1078 transitions. [2022-12-06 16:35:19,070 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7749820273184759 [2022-12-06 16:35:19,071 INFO L294 CegarLoopForPetriNet]: 112 programPoint places, 12 predicate places. [2022-12-06 16:35:19,071 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 222 transitions, 939 flow [2022-12-06 16:35:19,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.85714285714286) internal successors, (531), 7 states have internal predecessors, (531), 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 16:35:19,072 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:35:19,072 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:35:19,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 16:35:19,073 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 16:35:19,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:35:19,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1778841639, now seen corresponding path program 1 times [2022-12-06 16:35:19,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:35:19,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118780220] [2022-12-06 16:35:19,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:35:19,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:35:19,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:35:19,933 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 16:35:19,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:35:19,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118780220] [2022-12-06 16:35:19,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118780220] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:35:19,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:35:19,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:35:19,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143480919] [2022-12-06 16:35:19,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:35:19,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:35:19,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:35:19,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:35:19,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:35:19,937 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 107 [2022-12-06 16:35:19,937 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 222 transitions, 939 flow. Second operand has 7 states, 7 states have (on average 76.0) internal successors, (532), 7 states have internal predecessors, (532), 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 16:35:19,938 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:35:19,938 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 107 [2022-12-06 16:35:19,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:35:21,169 INFO L130 PetriNetUnfolder]: 2220/4843 cut-off events. [2022-12-06 16:35:21,169 INFO L131 PetriNetUnfolder]: For 1165/4205 co-relation queries the response was YES. [2022-12-06 16:35:21,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13338 conditions, 4843 events. 2220/4843 cut-off events. For 1165/4205 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 37514 event pairs, 136 based on Foata normal form. 13/4737 useless extension candidates. Maximal degree in co-relation 13264. Up to 1751 conditions per place. [2022-12-06 16:35:21,194 INFO L137 encePairwiseOnDemand]: 94/107 looper letters, 60 selfloop transitions, 11 changer transitions 248/380 dead transitions. [2022-12-06 16:35:21,194 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 380 transitions, 2359 flow [2022-12-06 16:35:21,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:35:21,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:35:21,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1074 transitions. [2022-12-06 16:35:21,198 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7721063982746226 [2022-12-06 16:35:21,199 INFO L294 CegarLoopForPetriNet]: 112 programPoint places, 24 predicate places. [2022-12-06 16:35:21,199 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 380 transitions, 2359 flow [2022-12-06 16:35:21,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 76.0) internal successors, (532), 7 states have internal predecessors, (532), 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 16:35:21,199 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:35:21,200 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 16:35:21,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 16:35:21,200 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 16:35:21,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:35:21,201 INFO L85 PathProgramCache]: Analyzing trace with hash -340330191, now seen corresponding path program 1 times [2022-12-06 16:35:21,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:35:21,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93756946] [2022-12-06 16:35:21,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:35:21,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:35:21,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:35:22,033 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 16:35:22,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:35:22,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93756946] [2022-12-06 16:35:22,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93756946] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:35:22,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:35:22,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:35:22,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104078063] [2022-12-06 16:35:22,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:35:22,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:35:22,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:35:22,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:35:22,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:35:22,037 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 107 [2022-12-06 16:35:22,037 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 380 transitions, 2359 flow. Second operand has 7 states, 7 states have (on average 76.14285714285714) internal successors, (533), 7 states have internal predecessors, (533), 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 16:35:22,038 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:35:22,038 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 107 [2022-12-06 16:35:22,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:35:23,741 INFO L130 PetriNetUnfolder]: 3720/8809 cut-off events. [2022-12-06 16:35:23,741 INFO L131 PetriNetUnfolder]: For 2374/8644 co-relation queries the response was YES. [2022-12-06 16:35:23,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28679 conditions, 8809 events. 3720/8809 cut-off events. For 2374/8644 co-relation queries the response was YES. Maximal size of possible extension queue 532. Compared 82047 event pairs, 126 based on Foata normal form. 11/8712 useless extension candidates. Maximal degree in co-relation 28592. Up to 2763 conditions per place. [2022-12-06 16:35:23,850 INFO L137 encePairwiseOnDemand]: 93/107 looper letters, 77 selfloop transitions, 26 changer transitions 673/837 dead transitions. [2022-12-06 16:35:23,850 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 837 transitions, 7162 flow [2022-12-06 16:35:23,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:35:23,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:35:23,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1086 transitions. [2022-12-06 16:35:23,854 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7807332854061826 [2022-12-06 16:35:23,855 INFO L294 CegarLoopForPetriNet]: 112 programPoint places, 36 predicate places. [2022-12-06 16:35:23,855 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 837 transitions, 7162 flow [2022-12-06 16:35:23,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 76.14285714285714) internal successors, (533), 7 states have internal predecessors, (533), 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 16:35:23,855 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:35:23,856 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, 1, 1] [2022-12-06 16:35:23,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 16:35:23,856 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 16:35:23,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:35:23,857 INFO L85 PathProgramCache]: Analyzing trace with hash 297525326, now seen corresponding path program 1 times [2022-12-06 16:35:23,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:35:23,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743002716] [2022-12-06 16:35:23,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:35:23,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:35:23,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:35:25,241 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 16:35:25,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:35:25,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743002716] [2022-12-06 16:35:25,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743002716] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:35:25,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:35:25,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 16:35:25,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98956336] [2022-12-06 16:35:25,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:35:25,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 16:35:25,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:35:25,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 16:35:25,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-12-06 16:35:25,244 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 107 [2022-12-06 16:35:25,246 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 837 transitions, 7162 flow. Second operand has 14 states, 14 states have (on average 74.64285714285714) internal successors, (1045), 14 states have internal predecessors, (1045), 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 16:35:25,246 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:35:25,246 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 107 [2022-12-06 16:35:25,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:35:28,268 INFO L130 PetriNetUnfolder]: 7101/17930 cut-off events. [2022-12-06 16:35:28,268 INFO L131 PetriNetUnfolder]: For 5667/40551 co-relation queries the response was YES. [2022-12-06 16:35:28,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66174 conditions, 17930 events. 7101/17930 cut-off events. For 5667/40551 co-relation queries the response was YES. Maximal size of possible extension queue 1013. Compared 197767 event pairs, 173 based on Foata normal form. 85/17892 useless extension candidates. Maximal degree in co-relation 66074. Up to 5428 conditions per place. [2022-12-06 16:35:28,353 INFO L137 encePairwiseOnDemand]: 87/107 looper letters, 79 selfloop transitions, 37 changer transitions 1905/2082 dead transitions. [2022-12-06 16:35:28,353 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 2082 transitions, 22261 flow [2022-12-06 16:35:28,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-06 16:35:28,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-12-06 16:35:28,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 1957 transitions. [2022-12-06 16:35:28,358 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7620716510903427 [2022-12-06 16:35:28,359 INFO L294 CegarLoopForPetriNet]: 112 programPoint places, 59 predicate places. [2022-12-06 16:35:28,359 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 2082 transitions, 22261 flow [2022-12-06 16:35:28,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 74.64285714285714) internal successors, (1045), 14 states have internal predecessors, (1045), 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 16:35:28,360 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:35:28,360 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, 1, 1, 1] [2022-12-06 16:35:28,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 16:35:28,360 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 16:35:28,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:35:28,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1314594409, now seen corresponding path program 1 times [2022-12-06 16:35:28,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:35:28,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475222340] [2022-12-06 16:35:28,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:35:28,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:35:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:35:28,727 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 16:35:28,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:35:28,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475222340] [2022-12-06 16:35:28,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475222340] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:35:28,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:35:28,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:35:28,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737659390] [2022-12-06 16:35:28,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:35:28,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:35:28,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:35:28,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:35:28,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:35:28,730 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 107 [2022-12-06 16:35:28,731 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 2082 transitions, 22261 flow. Second operand has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 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 16:35:28,731 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:35:28,731 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 107 [2022-12-06 16:35:28,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:35:33,708 INFO L130 PetriNetUnfolder]: 10837/29262 cut-off events. [2022-12-06 16:35:33,708 INFO L131 PetriNetUnfolder]: For 10851/65622 co-relation queries the response was YES. [2022-12-06 16:35:33,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120197 conditions, 29262 events. 10837/29262 cut-off events. For 10851/65622 co-relation queries the response was YES. Maximal size of possible extension queue 1693. Compared 363995 event pairs, 162 based on Foata normal form. 120/29245 useless extension candidates. Maximal degree in co-relation 120093. Up to 8472 conditions per place. [2022-12-06 16:35:33,853 INFO L137 encePairwiseOnDemand]: 101/107 looper letters, 94 selfloop transitions, 12 changer transitions 2657/2839 dead transitions. [2022-12-06 16:35:33,854 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 2839 transitions, 35866 flow [2022-12-06 16:35:33,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 16:35:33,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 16:35:33,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 825 transitions. [2022-12-06 16:35:33,861 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8566978193146417 [2022-12-06 16:35:33,864 INFO L294 CegarLoopForPetriNet]: 112 programPoint places, 67 predicate places. [2022-12-06 16:35:33,864 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 2839 transitions, 35866 flow [2022-12-06 16:35:33,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 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 16:35:33,865 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:35:33,865 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, 1, 1, 1] [2022-12-06 16:35:33,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 16:35:33,865 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 16:35:33,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:35:33,866 INFO L85 PathProgramCache]: Analyzing trace with hash 594584423, now seen corresponding path program 1 times [2022-12-06 16:35:33,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:35:33,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59114072] [2022-12-06 16:35:33,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:35:33,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:35:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:35:34,821 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 16:35:34,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:35:34,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59114072] [2022-12-06 16:35:34,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59114072] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:35:34,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:35:34,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-06 16:35:34,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304901897] [2022-12-06 16:35:34,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:35:34,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-06 16:35:34,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:35:34,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-06 16:35:34,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-12-06 16:35:34,824 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 107 [2022-12-06 16:35:34,825 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 2839 transitions, 35866 flow. Second operand has 12 states, 12 states have (on average 80.58333333333333) internal successors, (967), 12 states have internal predecessors, (967), 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 16:35:34,825 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:35:34,825 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 107 [2022-12-06 16:35:34,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:35:41,446 INFO L130 PetriNetUnfolder]: 11585/32199 cut-off events. [2022-12-06 16:35:41,447 INFO L131 PetriNetUnfolder]: For 18028/208158 co-relation queries the response was YES. [2022-12-06 16:35:41,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146206 conditions, 32199 events. 11585/32199 cut-off events. For 18028/208158 co-relation queries the response was YES. Maximal size of possible extension queue 1887. Compared 413531 event pairs, 211 based on Foata normal form. 101/32183 useless extension candidates. Maximal degree in co-relation 146093. Up to 14046 conditions per place. [2022-12-06 16:35:41,597 INFO L137 encePairwiseOnDemand]: 96/107 looper letters, 89 selfloop transitions, 10 changer transitions 2953/3134 dead transitions. [2022-12-06 16:35:41,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 3134 transitions, 45006 flow [2022-12-06 16:35:41,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 16:35:41,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 16:35:41,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1358 transitions. [2022-12-06 16:35:41,602 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7932242990654206 [2022-12-06 16:35:41,602 INFO L294 CegarLoopForPetriNet]: 112 programPoint places, 82 predicate places. [2022-12-06 16:35:41,602 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 3134 transitions, 45006 flow [2022-12-06 16:35:41,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 80.58333333333333) internal successors, (967), 12 states have internal predecessors, (967), 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 16:35:41,603 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:35:41,603 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, 1, 1, 1, 1] [2022-12-06 16:35:41,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 16:35:41,604 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 16:35:41,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:35:41,604 INFO L85 PathProgramCache]: Analyzing trace with hash 188305110, now seen corresponding path program 1 times [2022-12-06 16:35:41,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:35:41,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244485611] [2022-12-06 16:35:41,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:35:41,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:35:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:35:42,000 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 16:35:42,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:35:42,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244485611] [2022-12-06 16:35:42,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244485611] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:35:42,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:35:42,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 16:35:42,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845127627] [2022-12-06 16:35:42,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:35:42,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 16:35:42,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:35:42,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 16:35:42,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-06 16:35:42,003 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 107 [2022-12-06 16:35:42,005 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 3134 transitions, 45006 flow. Second operand has 10 states, 10 states have (on average 81.8) internal successors, (818), 10 states have internal predecessors, (818), 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 16:35:42,005 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:35:42,005 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 107 [2022-12-06 16:35:42,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:35:52,248 INFO L130 PetriNetUnfolder]: 16037/44696 cut-off events. [2022-12-06 16:35:52,248 INFO L131 PetriNetUnfolder]: For 35074/200865 co-relation queries the response was YES. [2022-12-06 16:35:52,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225267 conditions, 44696 events. 16037/44696 cut-off events. For 35074/200865 co-relation queries the response was YES. Maximal size of possible extension queue 2662. Compared 602914 event pairs, 204 based on Foata normal form. 291/44816 useless extension candidates. Maximal degree in co-relation 225146. Up to 20341 conditions per place. [2022-12-06 16:35:52,415 INFO L137 encePairwiseOnDemand]: 93/107 looper letters, 72 selfloop transitions, 19 changer transitions 4064/4238 dead transitions. [2022-12-06 16:35:52,416 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 4238 transitions, 69050 flow [2022-12-06 16:35:52,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 16:35:52,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 16:35:52,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1735 transitions. [2022-12-06 16:35:52,420 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8107476635514018 [2022-12-06 16:35:52,421 INFO L294 CegarLoopForPetriNet]: 112 programPoint places, 101 predicate places. [2022-12-06 16:35:52,421 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 4238 transitions, 69050 flow [2022-12-06 16:35:52,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 81.8) internal successors, (818), 10 states have internal predecessors, (818), 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 16:35:52,421 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:35:52,422 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, 1, 1, 1, 1] [2022-12-06 16:35:52,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 16:35:52,422 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 16:35:52,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:35:52,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1035779662, now seen corresponding path program 2 times [2022-12-06 16:35:52,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:35:52,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389250135] [2022-12-06 16:35:52,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:35:52,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:35:52,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:35:52,990 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 16:35:52,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:35:52,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389250135] [2022-12-06 16:35:52,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389250135] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:35:52,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:35:52,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-06 16:35:52,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306650054] [2022-12-06 16:35:52,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:35:52,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-06 16:35:52,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:35:52,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-06 16:35:52,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-12-06 16:35:52,993 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 107 [2022-12-06 16:35:52,994 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 4238 transitions, 69050 flow. Second operand has 12 states, 12 states have (on average 79.66666666666667) internal successors, (956), 12 states have internal predecessors, (956), 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 16:35:52,994 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:35:52,994 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 107 [2022-12-06 16:35:52,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:36:08,155 INFO L130 PetriNetUnfolder]: 18180/51697 cut-off events. [2022-12-06 16:36:08,155 INFO L131 PetriNetUnfolder]: For 53118/278381 co-relation queries the response was YES. [2022-12-06 16:36:08,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284766 conditions, 51697 events. 18180/51697 cut-off events. For 53118/278381 co-relation queries the response was YES. Maximal size of possible extension queue 3183. Compared 720597 event pairs, 153 based on Foata normal form. 491/52025 useless extension candidates. Maximal degree in co-relation 284635. Up to 23723 conditions per place. [2022-12-06 16:36:08,386 INFO L137 encePairwiseOnDemand]: 92/107 looper letters, 67 selfloop transitions, 20 changer transitions 5856/6018 dead transitions. [2022-12-06 16:36:08,386 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 6018 transitions, 110522 flow [2022-12-06 16:36:08,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 16:36:08,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 16:36:08,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1854 transitions. [2022-12-06 16:36:08,391 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7875955819881053 [2022-12-06 16:36:08,392 INFO L294 CegarLoopForPetriNet]: 112 programPoint places, 122 predicate places. [2022-12-06 16:36:08,393 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 6018 transitions, 110522 flow [2022-12-06 16:36:08,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 79.66666666666667) internal successors, (956), 12 states have internal predecessors, (956), 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 16:36:08,393 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:36:08,393 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, 1, 1, 1, 1, 1] [2022-12-06 16:36:08,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-06 16:36:08,394 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 16:36:08,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:36:08,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1930272449, now seen corresponding path program 1 times [2022-12-06 16:36:08,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:36:08,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515018116] [2022-12-06 16:36:08,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:36:08,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:36:08,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:36:10,696 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 16:36:10,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:36:10,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515018116] [2022-12-06 16:36:10,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515018116] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:36:10,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:36:10,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 16:36:10,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251561643] [2022-12-06 16:36:10,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:36:10,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 16:36:10,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:36:10,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 16:36:10,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-12-06 16:36:10,700 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 107 [2022-12-06 16:36:10,701 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 6018 transitions, 110522 flow. Second operand has 14 states, 14 states have (on average 72.92857142857143) internal successors, (1021), 14 states have internal predecessors, (1021), 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 16:36:10,701 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:36:10,701 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 107 [2022-12-06 16:36:10,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:36:54,700 INFO L130 PetriNetUnfolder]: 34320/104297 cut-off events. [2022-12-06 16:36:54,701 INFO L131 PetriNetUnfolder]: For 98680/639820 co-relation queries the response was YES. [2022-12-06 16:36:55,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 614024 conditions, 104297 events. 34320/104297 cut-off events. For 98680/639820 co-relation queries the response was YES. Maximal size of possible extension queue 7152. Compared 1653769 event pairs, 12 based on Foata normal form. 579/104687 useless extension candidates. Maximal degree in co-relation 613878. Up to 45922 conditions per place. [2022-12-06 16:36:55,182 INFO L137 encePairwiseOnDemand]: 89/107 looper letters, 93 selfloop transitions, 55 changer transitions 14553/14760 dead transitions. [2022-12-06 16:36:55,182 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 14760 transitions, 303381 flow [2022-12-06 16:36:55,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-06 16:36:55,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-12-06 16:36:55,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 1997 transitions. [2022-12-06 16:36:55,187 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7465420560747663 [2022-12-06 16:36:55,188 INFO L294 CegarLoopForPetriNet]: 112 programPoint places, 146 predicate places. [2022-12-06 16:36:55,188 INFO L495 AbstractCegarLoop]: Abstraction has has 258 places, 14760 transitions, 303381 flow [2022-12-06 16:36:55,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 72.92857142857143) internal successors, (1021), 14 states have internal predecessors, (1021), 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 16:36:55,189 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:36:55,189 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, 1, 1, 1, 1, 1] [2022-12-06 16:36:55,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-06 16:36:55,192 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 16:36:55,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:36:55,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1356131827, now seen corresponding path program 2 times [2022-12-06 16:36:55,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:36:55,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362670700] [2022-12-06 16:36:55,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:36:55,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:36:55,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:36:56,280 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 16:36:56,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:36:56,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362670700] [2022-12-06 16:36:56,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362670700] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:36:56,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:36:56,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-06 16:36:56,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993984227] [2022-12-06 16:36:56,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:36:56,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-06 16:36:56,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:36:56,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-06 16:36:56,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2022-12-06 16:36:56,283 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 107 [2022-12-06 16:36:56,284 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 14760 transitions, 303381 flow. Second operand has 15 states, 15 states have (on average 77.53333333333333) internal successors, (1163), 15 states have internal predecessors, (1163), 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 16:36:56,284 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:36:56,284 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 107 [2022-12-06 16:36:56,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:40:00,474 INFO L130 PetriNetUnfolder]: 38153/116004 cut-off events. [2022-12-06 16:40:00,475 INFO L131 PetriNetUnfolder]: For 140173/1035262 co-relation queries the response was YES. [2022-12-06 16:40:00,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 739719 conditions, 116004 events. 38153/116004 cut-off events. For 140173/1035262 co-relation queries the response was YES. Maximal size of possible extension queue 7939. Compared 1862362 event pairs, 21 based on Foata normal form. 466/116296 useless extension candidates. Maximal degree in co-relation 739561. Up to 50890 conditions per place. [2022-12-06 16:40:01,194 INFO L137 encePairwiseOnDemand]: 92/107 looper letters, 110 selfloop transitions, 21 changer transitions 16403/16608 dead transitions. [2022-12-06 16:40:01,195 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 16608 transitions, 373521 flow [2022-12-06 16:40:01,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 16:40:01,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 16:40:01,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1795 transitions. [2022-12-06 16:40:01,198 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7625318606627017 [2022-12-06 16:40:01,199 INFO L294 CegarLoopForPetriNet]: 112 programPoint places, 167 predicate places. [2022-12-06 16:40:01,199 INFO L495 AbstractCegarLoop]: Abstraction has has 279 places, 16608 transitions, 373521 flow [2022-12-06 16:40:01,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 77.53333333333333) internal successors, (1163), 15 states have internal predecessors, (1163), 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 16:40:01,202 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:40:01,202 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, 1, 1, 1, 1, 1, 1] [2022-12-06 16:40:01,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-06 16:40:01,202 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 16:40:01,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:40:01,203 INFO L85 PathProgramCache]: Analyzing trace with hash 959092919, now seen corresponding path program 1 times [2022-12-06 16:40:01,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:40:01,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359468306] [2022-12-06 16:40:01,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:40:01,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:40:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:40:02,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:40:02,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:40:02,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359468306] [2022-12-06 16:40:02,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359468306] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:40:02,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:40:02,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 16:40:02,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777370332] [2022-12-06 16:40:02,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:40:02,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 16:40:02,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:40:02,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 16:40:02,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-06 16:40:02,140 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 107 [2022-12-06 16:40:02,141 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 16608 transitions, 373521 flow. Second operand has 11 states, 11 states have (on average 79.0) internal successors, (869), 11 states have internal predecessors, (869), 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 16:40:02,141 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:40:02,141 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 107 [2022-12-06 16:40:02,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:45:04,697 INFO L130 PetriNetUnfolder]: 45809/146436 cut-off events. [2022-12-06 16:45:04,697 INFO L131 PetriNetUnfolder]: For 230617/2056336 co-relation queries the response was YES. [2022-12-06 16:45:05,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 990161 conditions, 146436 events. 45809/146436 cut-off events. For 230617/2056336 co-relation queries the response was YES. Maximal size of possible extension queue 10358. Compared 2480517 event pairs, 64 based on Foata normal form. 1153/147378 useless extension candidates. Maximal degree in co-relation 989992. Up to 64182 conditions per place. [2022-12-06 16:45:05,863 INFO L137 encePairwiseOnDemand]: 95/107 looper letters, 146 selfloop transitions, 35 changer transitions 22285/22541 dead transitions. [2022-12-06 16:45:05,863 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 22541 transitions, 553718 flow [2022-12-06 16:45:05,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-06 16:45:05,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-06 16:45:05,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1195 transitions. [2022-12-06 16:45:05,884 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7977303070761015 [2022-12-06 16:45:05,885 INFO L294 CegarLoopForPetriNet]: 112 programPoint places, 180 predicate places. [2022-12-06 16:45:05,885 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 22541 transitions, 553718 flow [2022-12-06 16:45:05,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 79.0) internal successors, (869), 11 states have internal predecessors, (869), 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 16:45:05,885 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:45:05,885 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, 1, 1, 1, 1, 1, 1] [2022-12-06 16:45:05,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-06 16:45:05,886 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 16:45:05,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:45:05,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1160238761, now seen corresponding path program 2 times [2022-12-06 16:45:05,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:45:05,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050622451] [2022-12-06 16:45:05,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:45:05,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:45:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:45:08,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:45:08,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:45:08,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050622451] [2022-12-06 16:45:08,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050622451] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:45:08,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:45:08,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-06 16:45:08,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840730124] [2022-12-06 16:45:08,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:45:08,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-06 16:45:08,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:45:08,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-06 16:45:08,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-12-06 16:45:08,170 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 107 [2022-12-06 16:45:08,171 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 22541 transitions, 553718 flow. Second operand has 15 states, 15 states have (on average 73.8) internal successors, (1107), 15 states have internal predecessors, (1107), 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 16:45:08,171 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:45:08,171 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 107 [2022-12-06 16:45:08,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2022-12-06 16:48:39,678 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-06 16:48:39,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-06 16:48:39,742 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-12-06 16:48:39,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-06 16:48:39,742 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (15states, 72/107 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 461971 conditions, 40326 events (22192/40325 cut-off events. For 242408/1826722 co-relation queries the response was YES. Maximal size of possible extension queue 10486. Compared 463762 event pairs, 59 based on Foata normal form. 1364/52003 useless extension candidates. Maximal degree in co-relation 461786. Up to 28648 conditions per place.). [2022-12-06 16:48:39,743 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-12-06 16:48:39,744 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-12-06 16:48:39,744 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2022-12-06 16:48:39,744 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2022-12-06 16:48:39,744 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-12-06 16:48:39,744 INFO L458 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:48:39,748 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:48:39,748 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:48:39,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:48:39 BasicIcfg [2022-12-06 16:48:39,752 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:48:39,752 INFO L158 Benchmark]: Toolchain (without parser) took 805583.38ms. Allocated memory was 184.5MB in the beginning and 5.3GB in the end (delta: 5.1GB). Free memory was 158.8MB in the beginning and 3.0GB in the end (delta: -2.8GB). Peak memory consumption was 5.0GB. Max. memory is 8.0GB. [2022-12-06 16:48:39,752 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 184.5MB. Free memory was 161.0MB in the beginning and 160.9MB in the end (delta: 63.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:48:39,753 INFO L158 Benchmark]: CACSL2BoogieTranslator took 448.73ms. Allocated memory is still 184.5MB. Free memory was 158.3MB in the beginning and 129.9MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-12-06 16:48:39,753 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.82ms. Allocated memory is still 184.5MB. Free memory was 129.9MB in the beginning and 126.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-06 16:48:39,753 INFO L158 Benchmark]: Boogie Preprocessor took 38.73ms. Allocated memory is still 184.5MB. Free memory was 126.8MB in the beginning and 124.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:48:39,753 INFO L158 Benchmark]: RCFGBuilder took 830.57ms. Allocated memory is still 184.5MB. Free memory was 124.7MB in the beginning and 76.5MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 8.0GB. [2022-12-06 16:48:39,754 INFO L158 Benchmark]: TraceAbstraction took 804186.80ms. Allocated memory was 184.5MB in the beginning and 5.3GB in the end (delta: 5.1GB). Free memory was 75.9MB in the beginning and 3.0GB in the end (delta: -2.9GB). Peak memory consumption was 4.9GB. Max. memory is 8.0GB. [2022-12-06 16:48:39,755 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 184.5MB. Free memory was 161.0MB in the beginning and 160.9MB in the end (delta: 63.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 448.73ms. Allocated memory is still 184.5MB. Free memory was 158.3MB in the beginning and 129.9MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 72.82ms. Allocated memory is still 184.5MB. Free memory was 129.9MB in the beginning and 126.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.73ms. Allocated memory is still 184.5MB. Free memory was 126.8MB in the beginning and 124.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 830.57ms. Allocated memory is still 184.5MB. Free memory was 124.7MB in the beginning and 76.5MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 8.0GB. * TraceAbstraction took 804186.80ms. Allocated memory was 184.5MB in the beginning and 5.3GB in the end (delta: 5.1GB). Free memory was 75.9MB in the beginning and 3.0GB in the end (delta: -2.9GB). Peak memory consumption was 4.9GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 18]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (15states, 72/107 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 461971 conditions, 40326 events (22192/40325 cut-off events. For 242408/1826722 co-relation queries the response was YES. Maximal size of possible extension queue 10486. Compared 463762 event pairs, 59 based on Foata normal form. 1364/52003 useless extension candidates. Maximal degree in co-relation 461786. Up to 28648 conditions per place.). - TimeoutResultAtElement [Line: 18]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (15states, 72/107 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 461971 conditions, 40326 events (22192/40325 cut-off events. For 242408/1826722 co-relation queries the response was YES. Maximal size of possible extension queue 10486. Compared 463762 event pairs, 59 based on Foata normal form. 1364/52003 useless extension candidates. Maximal degree in co-relation 461786. Up to 28648 conditions per place.). - TimeoutResultAtElement [Line: 845]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (15states, 72/107 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 461971 conditions, 40326 events (22192/40325 cut-off events. For 242408/1826722 co-relation queries the response was YES. Maximal size of possible extension queue 10486. Compared 463762 event pairs, 59 based on Foata normal form. 1364/52003 useless extension candidates. Maximal degree in co-relation 461786. Up to 28648 conditions per place.). - TimeoutResultAtElement [Line: 849]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (15states, 72/107 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 461971 conditions, 40326 events (22192/40325 cut-off events. For 242408/1826722 co-relation queries the response was YES. Maximal size of possible extension queue 10486. Compared 463762 event pairs, 59 based on Foata normal form. 1364/52003 useless extension candidates. Maximal degree in co-relation 461786. Up to 28648 conditions per place.). - TimeoutResultAtElement [Line: 847]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (15states, 72/107 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 461971 conditions, 40326 events (22192/40325 cut-off events. For 242408/1826722 co-relation queries the response was YES. Maximal size of possible extension queue 10486. Compared 463762 event pairs, 59 based on Foata normal form. 1364/52003 useless extension candidates. Maximal degree in co-relation 461786. Up to 28648 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 134 locations, 6 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: 804.1s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 790.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1615 SdHoareTripleChecker+Valid, 4.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1615 mSDsluCounter, 1572 SdHoareTripleChecker+Invalid, 3.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1263 mSDsCounter, 295 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3510 IncrementalHoareTripleChecker+Invalid, 3805 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 295 mSolverCounterUnsat, 309 mSDtfsCounter, 3510 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 283 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 258 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1229 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=553718occurred in iteration=12, InterpolantAutomatonStates: 194, 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, 0.7s SatisfiabilityAnalysisTime, 12.6s InterpolantComputationTime, 927 NumberOfCodeBlocks, 927 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 914 ConstructedInterpolants, 0 QuantifiedInterpolants, 9064 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown