/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/weaver/parallel-bluetooth.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 21:47:28,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 21:47:28,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 21:47:28,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 21:47:28,391 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 21:47:28,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 21:47:28,396 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 21:47:28,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 21:47:28,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 21:47:28,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 21:47:28,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 21:47:28,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 21:47:28,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 21:47:28,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 21:47:28,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 21:47:28,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 21:47:28,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 21:47:28,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 21:47:28,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 21:47:28,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 21:47:28,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 21:47:28,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 21:47:28,428 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 21:47:28,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 21:47:28,433 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 21:47:28,433 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 21:47:28,434 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 21:47:28,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 21:47:28,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 21:47:28,435 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 21:47:28,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 21:47:28,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 21:47:28,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 21:47:28,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 21:47:28,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 21:47:28,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 21:47:28,445 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 21:47:28,446 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 21:47:28,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 21:47:28,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 21:47:28,448 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 21:47:28,449 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-11 21:47:28,485 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 21:47:28,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 21:47:28,486 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 21:47:28,486 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 21:47:28,487 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 21:47:28,487 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 21:47:28,487 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 21:47:28,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 21:47:28,487 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 21:47:28,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 21:47:28,487 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 21:47:28,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 21:47:28,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 21:47:28,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 21:47:28,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 21:47:28,488 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 21:47:28,488 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 21:47:28,488 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 21:47:28,488 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 21:47:28,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 21:47:28,489 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 21:47:28,489 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 21:47:28,489 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 21:47:28,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 21:47:28,489 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 21:47:28,489 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 21:47:28,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 21:47:28,490 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 21:47:28,490 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 21:47:28,490 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 21:47:28,490 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 21:47:28,490 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-11 21:47:28,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 21:47:28,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 21:47:28,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 21:47:28,832 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 21:47:28,834 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 21:47:28,836 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c [2022-12-11 21:47:29,911 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 21:47:30,145 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 21:47:30,145 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c [2022-12-11 21:47:30,153 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5e9aad44/4f9e35f1e62f45ceb96a195c7c6da1d8/FLAG6c441851d [2022-12-11 21:47:30,164 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5e9aad44/4f9e35f1e62f45ceb96a195c7c6da1d8 [2022-12-11 21:47:30,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 21:47:30,167 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 21:47:30,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 21:47:30,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 21:47:30,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 21:47:30,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 09:47:30" (1/1) ... [2022-12-11 21:47:30,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d19a9bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:47:30, skipping insertion in model container [2022-12-11 21:47:30,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 09:47:30" (1/1) ... [2022-12-11 21:47:30,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 21:47:30,195 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 21:47:30,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:47:30,308 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:47:30,308 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:47:30,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:47:30,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:47:30,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:47:30,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:47:30,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:47:30,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:47:30,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:47:30,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:47:30,314 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:47:30,314 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:47:30,314 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:47:30,314 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:47:30,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:47:30,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:47:30,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:47:30,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:47:30,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:47:30,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:47:30,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:47:30,324 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c[3134,3147] [2022-12-11 21:47:30,328 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 21:47:30,336 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 21:47:30,348 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:47:30,349 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:47:30,349 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:47:30,349 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:47:30,349 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:47:30,350 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:47:30,350 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:47:30,351 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:47:30,351 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:47:30,352 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:47:30,352 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:47:30,352 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:47:30,352 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:47:30,353 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:47:30,353 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:47:30,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:47:30,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:47:30,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:47:30,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:47:30,355 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:47:30,355 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:47:30,355 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:47:30,360 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c[3134,3147] [2022-12-11 21:47:30,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 21:47:30,373 INFO L208 MainTranslator]: Completed translation [2022-12-11 21:47:30,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:47:30 WrapperNode [2022-12-11 21:47:30,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 21:47:30,375 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 21:47:30,375 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 21:47:30,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 21:47:30,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:47:30" (1/1) ... [2022-12-11 21:47:30,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:47:30" (1/1) ... [2022-12-11 21:47:30,407 INFO L138 Inliner]: procedures = 21, calls = 48, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 119 [2022-12-11 21:47:30,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 21:47:30,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 21:47:30,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 21:47:30,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 21:47:30,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:47:30" (1/1) ... [2022-12-11 21:47:30,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:47:30" (1/1) ... [2022-12-11 21:47:30,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:47:30" (1/1) ... [2022-12-11 21:47:30,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:47:30" (1/1) ... [2022-12-11 21:47:30,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:47:30" (1/1) ... [2022-12-11 21:47:30,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:47:30" (1/1) ... [2022-12-11 21:47:30,427 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:47:30" (1/1) ... [2022-12-11 21:47:30,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:47:30" (1/1) ... [2022-12-11 21:47:30,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 21:47:30,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 21:47:30,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 21:47:30,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 21:47:30,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:47:30" (1/1) ... [2022-12-11 21:47:30,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 21:47:30,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 21:47:30,475 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-11 21:47:30,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-11 21:47:30,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 21:47:30,516 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-11 21:47:30,516 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-11 21:47:30,516 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-11 21:47:30,517 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-11 21:47:30,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 21:47:30,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 21:47:30,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 21:47:30,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 21:47:30,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 21:47:30,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 21:47:30,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 21:47:30,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-11 21:47:30,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 21:47:30,520 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 21:47:30,627 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 21:47:30,628 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 21:47:30,841 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 21:47:30,881 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 21:47:30,881 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 21:47:30,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 09:47:30 BoogieIcfgContainer [2022-12-11 21:47:30,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 21:47:30,886 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 21:47:30,886 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 21:47:30,889 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 21:47:30,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 09:47:30" (1/3) ... [2022-12-11 21:47:30,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51d24f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 09:47:30, skipping insertion in model container [2022-12-11 21:47:30,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:47:30" (2/3) ... [2022-12-11 21:47:30,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51d24f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 09:47:30, skipping insertion in model container [2022-12-11 21:47:30,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 09:47:30" (3/3) ... [2022-12-11 21:47:30,891 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bluetooth.wvr.c [2022-12-11 21:47:30,908 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 21:47:30,908 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 21:47:30,908 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 21:47:31,009 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-11 21:47:31,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 122 transitions, 260 flow [2022-12-11 21:47:31,150 INFO L130 PetriNetUnfolder]: 9/120 cut-off events. [2022-12-11 21:47:31,150 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-11 21:47:31,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 120 events. 9/120 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 86. Up to 2 conditions per place. [2022-12-11 21:47:31,156 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 122 transitions, 260 flow [2022-12-11 21:47:31,163 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 110 places, 112 transitions, 236 flow [2022-12-11 21:47:31,181 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 21:47:31,188 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;@539a31f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 21:47:31,189 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-11 21:47:31,241 INFO L130 PetriNetUnfolder]: 9/111 cut-off events. [2022-12-11 21:47:31,242 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-11 21:47:31,242 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:47:31,243 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:47:31,245 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-11 21:47:31,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:47:31,250 INFO L85 PathProgramCache]: Analyzing trace with hash -225037092, now seen corresponding path program 1 times [2022-12-11 21:47:31,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:47:31,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415334860] [2022-12-11 21:47:31,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:47:31,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:47:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:47:32,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:47:32,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:47:32,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415334860] [2022-12-11 21:47:32,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415334860] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:47:32,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:47:32,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 21:47:32,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954337861] [2022-12-11 21:47:32,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:47:32,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 21:47:32,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:47:32,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 21:47:32,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 21:47:32,210 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 122 [2022-12-11 21:47:32,215 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 112 transitions, 236 flow. Second operand has 6 states, 6 states have (on average 72.0) internal successors, (432), 6 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:47:32,216 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:47:32,216 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 122 [2022-12-11 21:47:32,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:47:32,441 INFO L130 PetriNetUnfolder]: 29/218 cut-off events. [2022-12-11 21:47:32,441 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-12-11 21:47:32,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 218 events. 29/218 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 590 event pairs, 4 based on Foata normal form. 8/204 useless extension candidates. Maximal degree in co-relation 179. Up to 38 conditions per place. [2022-12-11 21:47:32,444 INFO L137 encePairwiseOnDemand]: 103/122 looper letters, 43 selfloop transitions, 1 changer transitions 18/118 dead transitions. [2022-12-11 21:47:32,444 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 118 transitions, 381 flow [2022-12-11 21:47:32,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-11 21:47:32,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-11 21:47:32,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 591 transitions. [2022-12-11 21:47:32,460 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6055327868852459 [2022-12-11 21:47:32,468 INFO L295 CegarLoopForPetriNet]: 110 programPoint places, 7 predicate places. [2022-12-11 21:47:32,474 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 118 transitions, 381 flow [2022-12-11 21:47:32,475 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 100 transitions, 303 flow [2022-12-11 21:47:32,476 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 100 transitions, 303 flow [2022-12-11 21:47:32,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.0) internal successors, (432), 6 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:47:32,477 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:47:32,477 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:47:32,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 21:47:32,477 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-11 21:47:32,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:47:32,478 INFO L85 PathProgramCache]: Analyzing trace with hash 821527366, now seen corresponding path program 2 times [2022-12-11 21:47:32,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:47:32,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531069442] [2022-12-11 21:47:32,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:47:32,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:47:32,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:47:32,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:47:32,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:47:32,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531069442] [2022-12-11 21:47:32,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531069442] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:47:32,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:47:32,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-11 21:47:32,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40702101] [2022-12-11 21:47:32,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:47:32,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-11 21:47:32,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:47:32,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-11 21:47:32,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-11 21:47:32,736 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 122 [2022-12-11 21:47:32,736 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 100 transitions, 303 flow. Second operand has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:47:32,737 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:47:32,737 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 122 [2022-12-11 21:47:32,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:47:32,842 INFO L130 PetriNetUnfolder]: 25/189 cut-off events. [2022-12-11 21:47:32,842 INFO L131 PetriNetUnfolder]: For 98/114 co-relation queries the response was YES. [2022-12-11 21:47:32,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 189 events. 25/189 cut-off events. For 98/114 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 482 event pairs, 2 based on Foata normal form. 4/183 useless extension candidates. Maximal degree in co-relation 207. Up to 53 conditions per place. [2022-12-11 21:47:32,846 INFO L137 encePairwiseOnDemand]: 114/122 looper letters, 44 selfloop transitions, 7 changer transitions 0/108 dead transitions. [2022-12-11 21:47:32,846 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 108 transitions, 442 flow [2022-12-11 21:47:32,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-11 21:47:32,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-11 21:47:32,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 379 transitions. [2022-12-11 21:47:32,852 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6213114754098361 [2022-12-11 21:47:32,854 INFO L295 CegarLoopForPetriNet]: 110 programPoint places, -1 predicate places. [2022-12-11 21:47:32,854 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 108 transitions, 442 flow [2022-12-11 21:47:32,857 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 108 transitions, 442 flow [2022-12-11 21:47:32,857 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 108 transitions, 442 flow [2022-12-11 21:47:32,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:47:32,858 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:47:32,858 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:47:32,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 21:47:32,858 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-11 21:47:32,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:47:32,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1160983993, now seen corresponding path program 1 times [2022-12-11 21:47:32,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:47:32,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721485880] [2022-12-11 21:47:32,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:47:32,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:47:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:47:33,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:47:33,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:47:33,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721485880] [2022-12-11 21:47:33,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721485880] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:47:33,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:47:33,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-11 21:47:33,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56315872] [2022-12-11 21:47:33,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:47:33,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-11 21:47:33,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:47:33,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-11 21:47:33,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-11 21:47:33,252 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 122 [2022-12-11 21:47:33,253 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 108 transitions, 442 flow. Second operand has 9 states, 9 states have (on average 68.66666666666667) internal successors, (618), 9 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:47:33,253 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:47:33,253 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 122 [2022-12-11 21:47:33,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:47:33,402 INFO L130 PetriNetUnfolder]: 43/261 cut-off events. [2022-12-11 21:47:33,402 INFO L131 PetriNetUnfolder]: For 286/321 co-relation queries the response was YES. [2022-12-11 21:47:33,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 645 conditions, 261 events. 43/261 cut-off events. For 286/321 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 966 event pairs, 3 based on Foata normal form. 3/249 useless extension candidates. Maximal degree in co-relation 310. Up to 64 conditions per place. [2022-12-11 21:47:33,406 INFO L137 encePairwiseOnDemand]: 111/122 looper letters, 54 selfloop transitions, 18 changer transitions 4/133 dead transitions. [2022-12-11 21:47:33,406 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 133 transitions, 740 flow [2022-12-11 21:47:33,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-11 21:47:33,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-11 21:47:33,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 642 transitions. [2022-12-11 21:47:33,408 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5846994535519126 [2022-12-11 21:47:33,410 INFO L295 CegarLoopForPetriNet]: 110 programPoint places, 7 predicate places. [2022-12-11 21:47:33,410 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 133 transitions, 740 flow [2022-12-11 21:47:33,413 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 129 transitions, 696 flow [2022-12-11 21:47:33,414 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 129 transitions, 696 flow [2022-12-11 21:47:33,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 68.66666666666667) internal successors, (618), 9 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:47:33,414 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:47:33,415 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:47:33,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 21:47:33,415 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-11 21:47:33,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:47:33,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1420900954, now seen corresponding path program 1 times [2022-12-11 21:47:33,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:47:33,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862155455] [2022-12-11 21:47:33,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:47:33,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:47:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:47:33,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:47:33,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:47:33,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862155455] [2022-12-11 21:47:33,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862155455] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:47:33,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:47:33,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-11 21:47:33,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232037640] [2022-12-11 21:47:33,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:47:33,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-11 21:47:33,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:47:33,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-11 21:47:33,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-12-11 21:47:33,981 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 122 [2022-12-11 21:47:33,982 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 129 transitions, 696 flow. Second operand has 11 states, 11 states have (on average 60.54545454545455) internal successors, (666), 11 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:47:33,982 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:47:33,982 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 122 [2022-12-11 21:47:33,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:47:34,472 INFO L130 PetriNetUnfolder]: 67/349 cut-off events. [2022-12-11 21:47:34,472 INFO L131 PetriNetUnfolder]: For 629/685 co-relation queries the response was YES. [2022-12-11 21:47:34,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1026 conditions, 349 events. 67/349 cut-off events. For 629/685 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1529 event pairs, 8 based on Foata normal form. 8/335 useless extension candidates. Maximal degree in co-relation 685. Up to 110 conditions per place. [2022-12-11 21:47:34,474 INFO L137 encePairwiseOnDemand]: 107/122 looper letters, 62 selfloop transitions, 19 changer transitions 28/161 dead transitions. [2022-12-11 21:47:34,475 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 161 transitions, 1140 flow [2022-12-11 21:47:34,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-11 21:47:34,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-11 21:47:34,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 927 transitions. [2022-12-11 21:47:34,478 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5065573770491804 [2022-12-11 21:47:34,480 INFO L295 CegarLoopForPetriNet]: 110 programPoint places, 21 predicate places. [2022-12-11 21:47:34,482 INFO L82 GeneralOperation]: Start removeDead. Operand has 131 places, 161 transitions, 1140 flow [2022-12-11 21:47:34,485 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 133 transitions, 875 flow [2022-12-11 21:47:34,489 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 133 transitions, 875 flow [2022-12-11 21:47:34,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 60.54545454545455) internal successors, (666), 11 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:47:34,490 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:47:34,490 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:47:34,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 21:47:34,490 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-11 21:47:34,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:47:34,491 INFO L85 PathProgramCache]: Analyzing trace with hash 37063212, now seen corresponding path program 2 times [2022-12-11 21:47:34,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:47:34,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904263472] [2022-12-11 21:47:34,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:47:34,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:47:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:47:35,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:47:35,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:47:35,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904263472] [2022-12-11 21:47:35,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904263472] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:47:35,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:47:35,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-11 21:47:35,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232439353] [2022-12-11 21:47:35,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:47:35,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-11 21:47:35,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:47:35,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-11 21:47:35,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-12-11 21:47:35,095 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 122 [2022-12-11 21:47:35,096 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 133 transitions, 875 flow. Second operand has 12 states, 12 states have (on average 65.66666666666667) internal successors, (788), 12 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:47:35,096 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:47:35,096 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 122 [2022-12-11 21:47:35,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:47:35,329 INFO L130 PetriNetUnfolder]: 57/327 cut-off events. [2022-12-11 21:47:35,329 INFO L131 PetriNetUnfolder]: For 837/897 co-relation queries the response was YES. [2022-12-11 21:47:35,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1096 conditions, 327 events. 57/327 cut-off events. For 837/897 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1417 event pairs, 15 based on Foata normal form. 13/320 useless extension candidates. Maximal degree in co-relation 735. Up to 136 conditions per place. [2022-12-11 21:47:35,331 INFO L137 encePairwiseOnDemand]: 110/122 looper letters, 57 selfloop transitions, 11 changer transitions 22/149 dead transitions. [2022-12-11 21:47:35,331 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 149 transitions, 1208 flow [2022-12-11 21:47:35,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-11 21:47:35,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-11 21:47:35,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 812 transitions. [2022-12-11 21:47:35,334 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5546448087431693 [2022-12-11 21:47:35,335 INFO L295 CegarLoopForPetriNet]: 110 programPoint places, 27 predicate places. [2022-12-11 21:47:35,335 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 149 transitions, 1208 flow [2022-12-11 21:47:35,337 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 127 transitions, 960 flow [2022-12-11 21:47:35,337 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 127 transitions, 960 flow [2022-12-11 21:47:35,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.66666666666667) internal successors, (788), 12 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:47:35,338 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:47:35,338 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:47:35,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 21:47:35,338 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-11 21:47:35,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:47:35,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1946820530, now seen corresponding path program 3 times [2022-12-11 21:47:35,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:47:35,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518816749] [2022-12-11 21:47:35,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:47:35,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:47:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:47:35,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:47:35,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:47:35,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518816749] [2022-12-11 21:47:35,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518816749] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:47:35,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:47:35,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 21:47:35,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463471309] [2022-12-11 21:47:35,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:47:35,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 21:47:35,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:47:35,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 21:47:35,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-11 21:47:35,633 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 122 [2022-12-11 21:47:35,633 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 127 transitions, 960 flow. Second operand has 8 states, 8 states have (on average 67.625) internal successors, (541), 8 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:47:35,633 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:47:35,634 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 122 [2022-12-11 21:47:35,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:47:35,796 INFO L130 PetriNetUnfolder]: 44/261 cut-off events. [2022-12-11 21:47:35,796 INFO L131 PetriNetUnfolder]: For 866/914 co-relation queries the response was YES. [2022-12-11 21:47:35,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 955 conditions, 261 events. 44/261 cut-off events. For 866/914 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 927 event pairs, 9 based on Foata normal form. 5/249 useless extension candidates. Maximal degree in co-relation 448. Up to 101 conditions per place. [2022-12-11 21:47:35,797 INFO L137 encePairwiseOnDemand]: 112/122 looper letters, 0 selfloop transitions, 0 changer transitions 126/126 dead transitions. [2022-12-11 21:47:35,797 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 126 transitions, 1108 flow [2022-12-11 21:47:35,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-11 21:47:35,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-11 21:47:35,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 606 transitions. [2022-12-11 21:47:35,799 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5519125683060109 [2022-12-11 21:47:35,800 INFO L295 CegarLoopForPetriNet]: 110 programPoint places, 25 predicate places. [2022-12-11 21:47:35,800 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 126 transitions, 1108 flow [2022-12-11 21:47:35,800 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-11 21:47:35,800 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-11 21:47:35,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 67.625) internal successors, (541), 8 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:47:35,803 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-11 21:47:35,803 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-11 21:47:35,804 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-11 21:47:35,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 21:47:35,804 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1] [2022-12-11 21:47:35,807 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 21:47:35,807 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 21:47:35,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 09:47:35 BasicIcfg [2022-12-11 21:47:35,811 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 21:47:35,812 INFO L158 Benchmark]: Toolchain (without parser) took 5644.38ms. Allocated memory was 179.3MB in the beginning and 267.4MB in the end (delta: 88.1MB). Free memory was 155.6MB in the beginning and 138.4MB in the end (delta: 17.1MB). Peak memory consumption was 106.2MB. Max. memory is 8.0GB. [2022-12-11 21:47:35,812 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 179.3MB. Free memory was 156.0MB in the beginning and 155.9MB in the end (delta: 90.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 21:47:35,812 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.29ms. Allocated memory is still 179.3MB. Free memory was 155.1MB in the beginning and 141.9MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-11 21:47:35,813 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.11ms. Allocated memory is still 179.3MB. Free memory was 141.9MB in the beginning and 140.3MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-11 21:47:35,813 INFO L158 Benchmark]: Boogie Preprocessor took 21.84ms. Allocated memory is still 179.3MB. Free memory was 140.3MB in the beginning and 138.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 21:47:35,813 INFO L158 Benchmark]: RCFGBuilder took 452.82ms. Allocated memory is still 179.3MB. Free memory was 138.8MB in the beginning and 122.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-12-11 21:47:35,813 INFO L158 Benchmark]: TraceAbstraction took 4925.38ms. Allocated memory was 179.3MB in the beginning and 267.4MB in the end (delta: 88.1MB). Free memory was 121.0MB in the beginning and 138.4MB in the end (delta: -17.5MB). Peak memory consumption was 71.6MB. Max. memory is 8.0GB. [2022-12-11 21:47:35,815 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 179.3MB. Free memory was 156.0MB in the beginning and 155.9MB in the end (delta: 90.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 206.29ms. Allocated memory is still 179.3MB. Free memory was 155.1MB in the beginning and 141.9MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.11ms. Allocated memory is still 179.3MB. Free memory was 141.9MB in the beginning and 140.3MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.84ms. Allocated memory is still 179.3MB. Free memory was 140.3MB in the beginning and 138.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 452.82ms. Allocated memory is still 179.3MB. Free memory was 138.8MB in the beginning and 122.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 4925.38ms. Allocated memory was 179.3MB in the beginning and 267.4MB in the end (delta: 88.1MB). Free memory was 121.0MB in the beginning and 138.4MB in the end (delta: -17.5MB). Peak memory consumption was 71.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 115]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 135 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 398 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 398 mSDsluCounter, 675 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 474 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 823 IncrementalHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 201 mSDtfsCounter, 823 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=960occurred in iteration=5, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 1743 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 568 NumberOfCodeBlocks, 568 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 562 ConstructedInterpolants, 0 QuantifiedInterpolants, 2562 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-11 21:47:35,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...