/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 09:38:17,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 09:38:17,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 09:38:17,479 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 09:38:17,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 09:38:17,483 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 09:38:17,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 09:38:17,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 09:38:17,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 09:38:17,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 09:38:17,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 09:38:17,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 09:38:17,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 09:38:17,501 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 09:38:17,502 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 09:38:17,503 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 09:38:17,503 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 09:38:17,504 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 09:38:17,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 09:38:17,512 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 09:38:17,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 09:38:17,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 09:38:17,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 09:38:17,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 09:38:17,521 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 09:38:17,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 09:38:17,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 09:38:17,522 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 09:38:17,523 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 09:38:17,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 09:38:17,524 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 09:38:17,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 09:38:17,528 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 09:38:17,529 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 09:38:17,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 09:38:17,529 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 09:38:17,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 09:38:17,530 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 09:38:17,530 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 09:38:17,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 09:38:17,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 09:38:17,532 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-RepeatedSemanticLbeWithPredicates.epf [2022-12-13 09:38:17,556 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 09:38:17,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 09:38:17,558 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 09:38:17,558 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 09:38:17,558 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 09:38:17,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 09:38:17,559 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 09:38:17,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 09:38:17,559 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 09:38:17,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 09:38:17,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 09:38:17,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 09:38:17,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 09:38:17,560 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 09:38:17,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 09:38:17,560 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 09:38:17,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 09:38:17,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 09:38:17,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 09:38:17,561 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 09:38:17,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 09:38:17,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 09:38:17,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 09:38:17,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 09:38:17,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 09:38:17,562 INFO L138 SettingsManager]: * Use conditional commutativity for large block encoding in concurrent analysis=CONDITIONAL_CONJUNCTIVE [2022-12-13 09:38:17,562 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 09:38:17,562 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 09:38:17,562 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 09:38:17,562 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-13 09:38:17,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 09:38:17,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 09:38:17,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 09:38:17,881 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 09:38:17,882 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 09:38:17,883 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.i [2022-12-13 09:38:18,864 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 09:38:19,109 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 09:38:19,115 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe034_tso.i [2022-12-13 09:38:19,125 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c196cd3ef/a3dbacca47634a008194e37f8fd2998c/FLAGc29103b96 [2022-12-13 09:38:19,135 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c196cd3ef/a3dbacca47634a008194e37f8fd2998c [2022-12-13 09:38:19,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 09:38:19,138 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 09:38:19,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 09:38:19,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 09:38:19,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 09:38:19,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:38:19" (1/1) ... [2022-12-13 09:38:19,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e81ef21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:38:19, skipping insertion in model container [2022-12-13 09:38:19,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:38:19" (1/1) ... [2022-12-13 09:38:19,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 09:38:19,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 09:38:19,286 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/safe034_tso.i[945,958] [2022-12-13 09:38:19,430 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,430 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,430 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,431 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,431 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,431 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,431 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,432 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,432 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,432 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,433 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,433 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,433 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,433 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,433 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,433 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,434 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,434 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,434 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,434 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,435 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,435 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,435 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,435 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,436 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,436 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,436 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,437 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,445 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,447 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,448 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,448 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,449 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,450 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 09:38:19,458 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 09:38:19,468 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/safe034_tso.i[945,958] [2022-12-13 09:38:19,489 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,489 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,489 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,489 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,489 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,490 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,490 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,490 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,490 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,490 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,490 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,491 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,491 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,491 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,491 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,491 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,491 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,491 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,491 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,492 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,492 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,492 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,492 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,492 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,493 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,493 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,493 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,493 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,498 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,499 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,499 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,499 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,500 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:38:19,501 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:38:19,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 09:38:19,538 INFO L208 MainTranslator]: Completed translation [2022-12-13 09:38:19,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:38:19 WrapperNode [2022-12-13 09:38:19,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 09:38:19,541 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 09:38:19,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 09:38:19,541 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 09:38:19,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:38:19" (1/1) ... [2022-12-13 09:38:19,576 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:38:19" (1/1) ... [2022-12-13 09:38:19,589 INFO L138 Inliner]: procedures = 176, calls = 57, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-12-13 09:38:19,590 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 09:38:19,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 09:38:19,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 09:38:19,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 09:38:19,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:38:19" (1/1) ... [2022-12-13 09:38:19,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:38:19" (1/1) ... [2022-12-13 09:38:19,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:38:19" (1/1) ... [2022-12-13 09:38:19,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:38:19" (1/1) ... [2022-12-13 09:38:19,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:38:19" (1/1) ... [2022-12-13 09:38:19,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:38:19" (1/1) ... [2022-12-13 09:38:19,618 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:38:19" (1/1) ... [2022-12-13 09:38:19,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:38:19" (1/1) ... [2022-12-13 09:38:19,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 09:38:19,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 09:38:19,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 09:38:19,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 09:38:19,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:38:19" (1/1) ... [2022-12-13 09:38:19,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 09:38:19,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 09:38:19,665 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) [2022-12-13 09:38:19,685 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 [2022-12-13 09:38:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 09:38:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 09:38:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 09:38:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 09:38:19,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 09:38:19,699 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 09:38:19,699 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 09:38:19,699 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 09:38:19,699 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 09:38:19,699 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 09:38:19,699 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 09:38:19,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 09:38:19,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 09:38:19,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 09:38:19,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 09:38:19,700 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 09:38:19,852 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 09:38:19,854 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 09:38:20,013 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 09:38:20,018 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 09:38:20,019 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 09:38:20,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:38:20 BoogieIcfgContainer [2022-12-13 09:38:20,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 09:38:20,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 09:38:20,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 09:38:20,024 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 09:38:20,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:38:19" (1/3) ... [2022-12-13 09:38:20,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6523733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:38:20, skipping insertion in model container [2022-12-13 09:38:20,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:38:19" (2/3) ... [2022-12-13 09:38:20,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6523733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:38:20, skipping insertion in model container [2022-12-13 09:38:20,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:38:20" (3/3) ... [2022-12-13 09:38:20,026 INFO L112 eAbstractionObserver]: Analyzing ICFG safe034_tso.i [2022-12-13 09:38:20,040 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 09:38:20,040 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 09:38:20,041 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 09:38:20,101 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 09:38:20,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 85 transitions, 185 flow [2022-12-13 09:38:20,184 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2022-12-13 09:38:20,184 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:38:20,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-13 09:38:20,189 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 85 transitions, 185 flow [2022-12-13 09:38:20,193 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 70 transitions, 149 flow [2022-12-13 09:38:20,195 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:38:20,216 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 70 transitions, 149 flow [2022-12-13 09:38:20,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 70 transitions, 149 flow [2022-12-13 09:38:20,248 INFO L130 PetriNetUnfolder]: 1/70 cut-off events. [2022-12-13 09:38:20,248 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:38:20,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 1/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 38 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-12-13 09:38:20,252 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 70 transitions, 149 flow [2022-12-13 09:38:20,252 INFO L226 LiptonReduction]: Number of co-enabled transitions 1044 [2022-12-13 09:38:22,313 INFO L241 LiptonReduction]: Total number of compositions: 53 [2022-12-13 09:38:22,324 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 09:38:22,332 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=REPEATED_LIPTON_PN, 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;@7f9275e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_CONJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 09:38:22,333 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 09:38:22,339 INFO L130 PetriNetUnfolder]: 0/19 cut-off events. [2022-12-13 09:38:22,340 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:38:22,340 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:38:22,341 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 09:38:22,342 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 09:38:22,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:38:22,348 INFO L85 PathProgramCache]: Analyzing trace with hash 321159911, now seen corresponding path program 1 times [2022-12-13 09:38:22,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:38:22,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365744600] [2022-12-13 09:38:22,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:38:22,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:38:22,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:38:22,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:38:22,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:38:22,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365744600] [2022-12-13 09:38:22,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365744600] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:38:22,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:38:22,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 09:38:22,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023287926] [2022-12-13 09:38:22,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:38:22,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 09:38:22,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:38:22,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 09:38:22,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 09:38:22,749 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-13 09:38:22,750 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2022-12-13 09:38:22,750 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:38:22,750 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-13 09:38:22,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:38:22,930 INFO L130 PetriNetUnfolder]: 1160/1933 cut-off events. [2022-12-13 09:38:22,930 INFO L131 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2022-12-13 09:38:22,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3793 conditions, 1933 events. 1160/1933 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 10687 event pairs, 404 based on Foata normal form. 79/1608 useless extension candidates. Maximal degree in co-relation 3782. Up to 1256 conditions per place. [2022-12-13 09:38:22,942 INFO L137 encePairwiseOnDemand]: 20/27 looper letters, 32 selfloop transitions, 5 changer transitions 0/43 dead transitions. [2022-12-13 09:38:22,942 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 43 transitions, 175 flow [2022-12-13 09:38:22,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:38:22,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 09:38:22,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2022-12-13 09:38:22,950 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7160493827160493 [2022-12-13 09:38:22,951 INFO L175 Difference]: Start difference. First operand has 36 places, 27 transitions, 63 flow. Second operand 3 states and 58 transitions. [2022-12-13 09:38:22,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 43 transitions, 175 flow [2022-12-13 09:38:22,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 43 transitions, 170 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 09:38:22,955 INFO L231 Difference]: Finished difference. Result has 37 places, 30 transitions, 96 flow [2022-12-13 09:38:22,956 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=37, PETRI_TRANSITIONS=30} [2022-12-13 09:38:22,959 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places. [2022-12-13 09:38:22,959 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 09:38:22,960 INFO L89 Accepts]: Start accepts. Operand has 37 places, 30 transitions, 96 flow [2022-12-13 09:38:22,961 INFO L95 Accepts]: Finished accepts. [2022-12-13 09:38:22,962 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:38:22,962 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 30 transitions, 96 flow [2022-12-13 09:38:22,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 30 transitions, 96 flow [2022-12-13 09:38:22,969 INFO L130 PetriNetUnfolder]: 24/130 cut-off events. [2022-12-13 09:38:22,969 INFO L131 PetriNetUnfolder]: For 14/18 co-relation queries the response was YES. [2022-12-13 09:38:22,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 130 events. 24/130 cut-off events. For 14/18 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 719 event pairs, 12 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 211. Up to 45 conditions per place. [2022-12-13 09:38:22,971 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 30 transitions, 96 flow [2022-12-13 09:38:22,972 INFO L226 LiptonReduction]: Number of co-enabled transitions 412 [2022-12-13 09:38:22,978 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 09:38:22,979 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 20 [2022-12-13 09:38:22,979 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 96 flow [2022-12-13 09:38:22,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2022-12-13 09:38:22,979 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:38:22,979 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 09:38:22,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 09:38:22,980 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 09:38:22,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:38:22,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1366022441, now seen corresponding path program 1 times [2022-12-13 09:38:22,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:38:22,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268325972] [2022-12-13 09:38:22,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:38:22,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:38:23,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:38:23,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:38:23,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:38:23,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268325972] [2022-12-13 09:38:23,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268325972] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:38:23,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:38:23,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 09:38:23,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809113666] [2022-12-13 09:38:23,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:38:23,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 09:38:23,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:38:23,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 09:38:23,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 09:38:23,123 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 26 [2022-12-13 09:38:23,123 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2022-12-13 09:38:23,123 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:38:23,123 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 26 [2022-12-13 09:38:23,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:38:23,294 INFO L130 PetriNetUnfolder]: 1461/2385 cut-off events. [2022-12-13 09:38:23,295 INFO L131 PetriNetUnfolder]: For 366/366 co-relation queries the response was YES. [2022-12-13 09:38:23,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5285 conditions, 2385 events. 1461/2385 cut-off events. For 366/366 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 14287 event pairs, 492 based on Foata normal form. 12/1388 useless extension candidates. Maximal degree in co-relation 5273. Up to 2233 conditions per place. [2022-12-13 09:38:23,307 INFO L137 encePairwiseOnDemand]: 15/26 looper letters, 28 selfloop transitions, 10 changer transitions 0/47 dead transitions. [2022-12-13 09:38:23,307 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 47 transitions, 216 flow [2022-12-13 09:38:23,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:38:23,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 09:38:23,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2022-12-13 09:38:23,309 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7051282051282052 [2022-12-13 09:38:23,309 INFO L175 Difference]: Start difference. First operand has 37 places, 30 transitions, 96 flow. Second operand 3 states and 55 transitions. [2022-12-13 09:38:23,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 47 transitions, 216 flow [2022-12-13 09:38:23,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 47 transitions, 204 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 09:38:23,315 INFO L231 Difference]: Finished difference. Result has 38 places, 39 transitions, 154 flow [2022-12-13 09:38:23,315 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=38, PETRI_TRANSITIONS=39} [2022-12-13 09:38:23,315 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 2 predicate places. [2022-12-13 09:38:23,316 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 09:38:23,316 INFO L89 Accepts]: Start accepts. Operand has 38 places, 39 transitions, 154 flow [2022-12-13 09:38:23,317 INFO L95 Accepts]: Finished accepts. [2022-12-13 09:38:23,317 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:38:23,317 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 39 transitions, 154 flow [2022-12-13 09:38:23,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 39 transitions, 154 flow [2022-12-13 09:38:23,377 INFO L130 PetriNetUnfolder]: 762/1386 cut-off events. [2022-12-13 09:38:23,377 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:38:23,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2812 conditions, 1386 events. 762/1386 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 9636 event pairs, 312 based on Foata normal form. 0/671 useless extension candidates. Maximal degree in co-relation 2802. Up to 1123 conditions per place. [2022-12-13 09:38:23,384 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 39 transitions, 154 flow [2022-12-13 09:38:23,385 INFO L226 LiptonReduction]: Number of co-enabled transitions 506 [2022-12-13 09:38:23,394 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 09:38:23,395 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 79 [2022-12-13 09:38:23,395 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 39 transitions, 154 flow [2022-12-13 09:38:23,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2022-12-13 09:38:23,395 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:38:23,395 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 09:38:23,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 09:38:23,396 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 09:38:23,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:38:23,397 INFO L85 PathProgramCache]: Analyzing trace with hash 302620826, now seen corresponding path program 1 times [2022-12-13 09:38:23,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:38:23,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315932789] [2022-12-13 09:38:23,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:38:23,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:38:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:38:23,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:38:23,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:38:23,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315932789] [2022-12-13 09:38:23,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315932789] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:38:23,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:38:23,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 09:38:23,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343998139] [2022-12-13 09:38:23,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:38:23,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 09:38:23,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:38:23,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 09:38:23,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 09:38:23,483 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 26 [2022-12-13 09:38:23,484 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 39 transitions, 154 flow. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2022-12-13 09:38:23,484 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:38:23,484 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 26 [2022-12-13 09:38:23,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:38:23,621 INFO L130 PetriNetUnfolder]: 819/1514 cut-off events. [2022-12-13 09:38:23,621 INFO L131 PetriNetUnfolder]: For 220/322 co-relation queries the response was YES. [2022-12-13 09:38:23,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4481 conditions, 1514 events. 819/1514 cut-off events. For 220/322 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 9560 event pairs, 111 based on Foata normal form. 93/988 useless extension candidates. Maximal degree in co-relation 4468. Up to 1162 conditions per place. [2022-12-13 09:38:23,627 INFO L137 encePairwiseOnDemand]: 15/26 looper letters, 34 selfloop transitions, 19 changer transitions 0/62 dead transitions. [2022-12-13 09:38:23,627 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 62 transitions, 338 flow [2022-12-13 09:38:23,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:38:23,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 09:38:23,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 75 transitions. [2022-12-13 09:38:23,628 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7211538461538461 [2022-12-13 09:38:23,628 INFO L175 Difference]: Start difference. First operand has 38 places, 39 transitions, 154 flow. Second operand 4 states and 75 transitions. [2022-12-13 09:38:23,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 62 transitions, 338 flow [2022-12-13 09:38:23,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 62 transitions, 328 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 09:38:23,630 INFO L231 Difference]: Finished difference. Result has 41 places, 48 transitions, 256 flow [2022-12-13 09:38:23,630 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=256, PETRI_PLACES=41, PETRI_TRANSITIONS=48} [2022-12-13 09:38:23,631 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 5 predicate places. [2022-12-13 09:38:23,631 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 09:38:23,631 INFO L89 Accepts]: Start accepts. Operand has 41 places, 48 transitions, 256 flow [2022-12-13 09:38:23,631 INFO L95 Accepts]: Finished accepts. [2022-12-13 09:38:23,632 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:38:23,632 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 48 transitions, 256 flow [2022-12-13 09:38:23,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 48 transitions, 256 flow [2022-12-13 09:38:23,665 INFO L130 PetriNetUnfolder]: 423/903 cut-off events. [2022-12-13 09:38:23,666 INFO L131 PetriNetUnfolder]: For 93/411 co-relation queries the response was YES. [2022-12-13 09:38:23,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2730 conditions, 903 events. 423/903 cut-off events. For 93/411 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 6461 event pairs, 66 based on Foata normal form. 7/469 useless extension candidates. Maximal degree in co-relation 2718. Up to 742 conditions per place. [2022-12-13 09:38:23,670 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 48 transitions, 256 flow [2022-12-13 09:38:23,670 INFO L226 LiptonReduction]: Number of co-enabled transitions 506 [2022-12-13 09:38:23,673 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 09:38:23,674 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 43 [2022-12-13 09:38:23,674 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 48 transitions, 256 flow [2022-12-13 09:38:23,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2022-12-13 09:38:23,674 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:38:23,674 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 09:38:23,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 09:38:23,675 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 09:38:23,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:38:23,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1165331683, now seen corresponding path program 1 times [2022-12-13 09:38:23,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:38:23,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913914735] [2022-12-13 09:38:23,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:38:23,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:38:23,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:38:23,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:38:23,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:38:23,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913914735] [2022-12-13 09:38:23,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913914735] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:38:23,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:38:23,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 09:38:23,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718863661] [2022-12-13 09:38:23,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:38:23,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 09:38:23,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:38:23,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 09:38:23,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 09:38:23,768 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 26 [2022-12-13 09:38:23,769 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 48 transitions, 256 flow. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2022-12-13 09:38:23,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:38:23,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 26 [2022-12-13 09:38:23,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:38:23,951 INFO L130 PetriNetUnfolder]: 1216/2292 cut-off events. [2022-12-13 09:38:23,951 INFO L131 PetriNetUnfolder]: For 1311/1720 co-relation queries the response was YES. [2022-12-13 09:38:23,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8437 conditions, 2292 events. 1216/2292 cut-off events. For 1311/1720 co-relation queries the response was YES. Maximal size of possible extension queue 348. Compared 16180 event pairs, 155 based on Foata normal form. 149/1907 useless extension candidates. Maximal degree in co-relation 8422. Up to 1737 conditions per place. [2022-12-13 09:38:23,960 INFO L137 encePairwiseOnDemand]: 23/26 looper letters, 56 selfloop transitions, 3 changer transitions 11/86 dead transitions. [2022-12-13 09:38:23,961 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 86 transitions, 616 flow [2022-12-13 09:38:23,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:38:23,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 09:38:23,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2022-12-13 09:38:23,962 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6923076923076923 [2022-12-13 09:38:23,962 INFO L175 Difference]: Start difference. First operand has 41 places, 48 transitions, 256 flow. Second operand 4 states and 72 transitions. [2022-12-13 09:38:23,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 86 transitions, 616 flow [2022-12-13 09:38:23,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 86 transitions, 538 flow, removed 19 selfloop flow, removed 2 redundant places. [2022-12-13 09:38:23,978 INFO L231 Difference]: Finished difference. Result has 44 places, 50 transitions, 243 flow [2022-12-13 09:38:23,978 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=243, PETRI_PLACES=44, PETRI_TRANSITIONS=50} [2022-12-13 09:38:23,980 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 8 predicate places. [2022-12-13 09:38:23,980 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 09:38:23,980 INFO L89 Accepts]: Start accepts. Operand has 44 places, 50 transitions, 243 flow [2022-12-13 09:38:23,981 INFO L95 Accepts]: Finished accepts. [2022-12-13 09:38:23,981 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:38:23,981 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 50 transitions, 243 flow [2022-12-13 09:38:23,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 50 transitions, 243 flow [2022-12-13 09:38:24,050 INFO L130 PetriNetUnfolder]: 722/1471 cut-off events. [2022-12-13 09:38:24,051 INFO L131 PetriNetUnfolder]: For 388/614 co-relation queries the response was YES. [2022-12-13 09:38:24,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4063 conditions, 1471 events. 722/1471 cut-off events. For 388/614 co-relation queries the response was YES. Maximal size of possible extension queue 360. Compared 11210 event pairs, 111 based on Foata normal form. 12/705 useless extension candidates. Maximal degree in co-relation 4050. Up to 1270 conditions per place. [2022-12-13 09:38:24,059 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 50 transitions, 243 flow [2022-12-13 09:38:24,059 INFO L226 LiptonReduction]: Number of co-enabled transitions 522 [2022-12-13 09:38:24,063 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 09:38:24,064 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 84 [2022-12-13 09:38:24,064 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 50 transitions, 243 flow [2022-12-13 09:38:24,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2022-12-13 09:38:24,064 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:38:24,064 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 09:38:24,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 09:38:24,065 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 09:38:24,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:38:24,065 INFO L85 PathProgramCache]: Analyzing trace with hash 654691975, now seen corresponding path program 2 times [2022-12-13 09:38:24,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:38:24,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093956916] [2022-12-13 09:38:24,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:38:24,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:38:24,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:38:24,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:38:24,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:38:24,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093956916] [2022-12-13 09:38:24,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093956916] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:38:24,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:38:24,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 09:38:24,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469146716] [2022-12-13 09:38:24,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:38:24,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 09:38:24,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:38:24,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 09:38:24,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 09:38:24,139 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 26 [2022-12-13 09:38:24,139 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 50 transitions, 243 flow. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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) [2022-12-13 09:38:24,139 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:38:24,139 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 26 [2022-12-13 09:38:24,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:38:24,258 INFO L130 PetriNetUnfolder]: 760/1469 cut-off events. [2022-12-13 09:38:24,258 INFO L131 PetriNetUnfolder]: For 855/1257 co-relation queries the response was YES. [2022-12-13 09:38:24,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4974 conditions, 1469 events. 760/1469 cut-off events. For 855/1257 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 9849 event pairs, 24 based on Foata normal form. 242/987 useless extension candidates. Maximal degree in co-relation 4958. Up to 946 conditions per place. [2022-12-13 09:38:24,264 INFO L137 encePairwiseOnDemand]: 15/26 looper letters, 18 selfloop transitions, 28 changer transitions 10/64 dead transitions. [2022-12-13 09:38:24,264 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 64 transitions, 397 flow [2022-12-13 09:38:24,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 09:38:24,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 09:38:24,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 81 transitions. [2022-12-13 09:38:24,266 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6230769230769231 [2022-12-13 09:38:24,266 INFO L175 Difference]: Start difference. First operand has 44 places, 50 transitions, 243 flow. Second operand 5 states and 81 transitions. [2022-12-13 09:38:24,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 64 transitions, 397 flow [2022-12-13 09:38:24,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 64 transitions, 394 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 09:38:24,269 INFO L231 Difference]: Finished difference. Result has 48 places, 46 transitions, 296 flow [2022-12-13 09:38:24,269 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=296, PETRI_PLACES=48, PETRI_TRANSITIONS=46} [2022-12-13 09:38:24,269 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 12 predicate places. [2022-12-13 09:38:24,270 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 09:38:24,270 INFO L89 Accepts]: Start accepts. Operand has 48 places, 46 transitions, 296 flow [2022-12-13 09:38:24,270 INFO L95 Accepts]: Finished accepts. [2022-12-13 09:38:24,270 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:38:24,271 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 46 transitions, 296 flow [2022-12-13 09:38:24,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 46 transitions, 296 flow [2022-12-13 09:38:24,295 INFO L130 PetriNetUnfolder]: 202/494 cut-off events. [2022-12-13 09:38:24,296 INFO L131 PetriNetUnfolder]: For 379/748 co-relation queries the response was YES. [2022-12-13 09:38:24,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1878 conditions, 494 events. 202/494 cut-off events. For 379/748 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 3153 event pairs, 1 based on Foata normal form. 1/198 useless extension candidates. Maximal degree in co-relation 1863. Up to 397 conditions per place. [2022-12-13 09:38:24,298 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 46 transitions, 296 flow [2022-12-13 09:38:24,298 INFO L226 LiptonReduction]: Number of co-enabled transitions 336 [2022-12-13 09:38:24,457 INFO L241 LiptonReduction]: Total number of compositions: 3 [2022-12-13 09:38:24,458 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 189 [2022-12-13 09:38:24,458 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 44 transitions, 294 flow [2022-12-13 09:38:24,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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) [2022-12-13 09:38:24,458 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:38:24,458 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 09:38:24,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 09:38:24,459 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 09:38:24,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:38:24,459 INFO L85 PathProgramCache]: Analyzing trace with hash -583773523, now seen corresponding path program 1 times [2022-12-13 09:38:24,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:38:24,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779675137] [2022-12-13 09:38:24,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:38:24,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:38:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:38:24,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:38:24,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:38:24,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779675137] [2022-12-13 09:38:24,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779675137] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:38:24,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:38:24,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 09:38:24,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982676795] [2022-12-13 09:38:24,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:38:24,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 09:38:24,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:38:24,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 09:38:24,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 09:38:24,568 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 25 [2022-12-13 09:38:24,568 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 44 transitions, 294 flow. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2022-12-13 09:38:24,568 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:38:24,568 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 25 [2022-12-13 09:38:24,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:38:24,646 INFO L130 PetriNetUnfolder]: 420/805 cut-off events. [2022-12-13 09:38:24,646 INFO L131 PetriNetUnfolder]: For 1318/1379 co-relation queries the response was YES. [2022-12-13 09:38:24,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3367 conditions, 805 events. 420/805 cut-off events. For 1318/1379 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 4571 event pairs, 18 based on Foata normal form. 57/644 useless extension candidates. Maximal degree in co-relation 3358. Up to 477 conditions per place. [2022-12-13 09:38:24,649 INFO L137 encePairwiseOnDemand]: 16/25 looper letters, 0 selfloop transitions, 0 changer transitions 73/73 dead transitions. [2022-12-13 09:38:24,649 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 73 transitions, 596 flow [2022-12-13 09:38:24,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 09:38:24,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 09:38:24,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 65 transitions. [2022-12-13 09:38:24,651 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.52 [2022-12-13 09:38:24,651 INFO L175 Difference]: Start difference. First operand has 44 places, 44 transitions, 294 flow. Second operand 5 states and 65 transitions. [2022-12-13 09:38:24,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 73 transitions, 596 flow [2022-12-13 09:38:24,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 73 transitions, 406 flow, removed 18 selfloop flow, removed 6 redundant places. [2022-12-13 09:38:24,662 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2022-12-13 09:38:24,662 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2022-12-13 09:38:24,664 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 5 predicate places. [2022-12-13 09:38:24,664 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:38:24,664 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 0 transitions, 0 flow [2022-12-13 09:38:24,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-13 09:38:24,664 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 09:38:24,664 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:38:24,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2022-12-13 09:38:24,665 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 09:38:24,665 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 09:38:24,665 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 09:38:24,666 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-13 09:38:24,666 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-13 09:38:24,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2022-12-13 09:38:24,668 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-13 09:38:24,668 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-13 09:38:24,668 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-13 09:38:24,668 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-13 09:38:24,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 09:38:24,668 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2022-12-13 09:38:24,677 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 09:38:24,677 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 09:38:24,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:38:24 BasicIcfg [2022-12-13 09:38:24,679 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 09:38:24,679 INFO L158 Benchmark]: Toolchain (without parser) took 5541.76ms. Allocated memory was 218.1MB in the beginning and 361.8MB in the end (delta: 143.7MB). Free memory was 192.8MB in the beginning and 276.0MB in the end (delta: -83.3MB). Peak memory consumption was 61.4MB. Max. memory is 8.0GB. [2022-12-13 09:38:24,680 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 218.1MB. Free memory was 194.8MB in the beginning and 194.7MB in the end (delta: 74.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 09:38:24,680 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.22ms. Allocated memory is still 218.1MB. Free memory was 192.3MB in the beginning and 168.7MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-13 09:38:24,680 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.12ms. Allocated memory is still 218.1MB. Free memory was 168.7MB in the beginning and 167.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 09:38:24,680 INFO L158 Benchmark]: Boogie Preprocessor took 30.19ms. Allocated memory is still 218.1MB. Free memory was 167.0MB in the beginning and 165.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-13 09:38:24,680 INFO L158 Benchmark]: RCFGBuilder took 399.56ms. Allocated memory is still 218.1MB. Free memory was 165.5MB in the beginning and 151.4MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-13 09:38:24,681 INFO L158 Benchmark]: TraceAbstraction took 4656.78ms. Allocated memory was 218.1MB in the beginning and 361.8MB in the end (delta: 143.7MB). Free memory was 150.3MB in the beginning and 276.0MB in the end (delta: -125.7MB). Peak memory consumption was 18.5MB. Max. memory is 8.0GB. [2022-12-13 09:38:24,682 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 218.1MB. Free memory was 194.8MB in the beginning and 194.7MB in the end (delta: 74.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 401.22ms. Allocated memory is still 218.1MB. Free memory was 192.3MB in the beginning and 168.7MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.12ms. Allocated memory is still 218.1MB. Free memory was 168.7MB in the beginning and 167.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.19ms. Allocated memory is still 218.1MB. Free memory was 167.0MB in the beginning and 165.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 399.56ms. Allocated memory is still 218.1MB. Free memory was 165.5MB in the beginning and 151.4MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 4656.78ms. Allocated memory was 218.1MB in the beginning and 361.8MB in the end (delta: 143.7MB). Free memory was 150.3MB in the beginning and 276.0MB in the end (delta: -125.7MB). Peak memory consumption was 18.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 79 PlacesBefore, 36 PlacesAfterwards, 70 TransitionsBefore, 27 TransitionsAfterwards, 1044 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 32 ConcurrentYvCompositions, 0 ChoiceCompositions, 53 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1260, independent: 1195, independent conditional: 1195, independent unconditional: 0, dependent: 65, dependent conditional: 65, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 973, independent: 929, independent conditional: 0, independent unconditional: 929, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 973, independent: 929, independent conditional: 0, independent unconditional: 929, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 973, independent: 892, independent conditional: 0, independent unconditional: 892, dependent: 81, dependent conditional: 0, dependent unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 81, independent: 37, independent conditional: 0, independent unconditional: 37, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 205, independent: 132, independent conditional: 0, independent unconditional: 132, dependent: 73, dependent conditional: 0, dependent unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1260, independent: 266, independent conditional: 266, independent unconditional: 0, dependent: 21, dependent conditional: 21, dependent unconditional: 0, unknown: 973, unknown conditional: 973, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 973, Positive cache size: 929, Positive conditional cache size: 929, Positive unconditional cache size: 0, Negative cache size: 44, Negative conditional cache size: 44, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 37 PlacesBefore, 37 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 412 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 34, independent: 29, independent conditional: 29, independent unconditional: 0, dependent: 5, dependent conditional: 5, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21, independent: 18, independent conditional: 4, independent unconditional: 14, dependent: 3, dependent conditional: 2, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 21, independent: 18, independent conditional: 4, independent unconditional: 14, dependent: 3, dependent conditional: 2, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 21, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 2, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 2, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 34, independent: 11, independent conditional: 11, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 21, unknown conditional: 21, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 18, Positive conditional cache size: 18, Positive unconditional cache size: 0, Negative cache size: 3, Negative conditional cache size: 3, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 38 PlacesBefore, 38 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 506 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 44, independent: 40, independent conditional: 40, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17, independent: 15, independent conditional: 5, independent unconditional: 10, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 17, independent: 15, independent conditional: 5, independent unconditional: 10, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 17, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 44, independent: 25, independent conditional: 25, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 17, unknown conditional: 17, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 33, Positive conditional cache size: 33, Positive unconditional cache size: 0, Negative cache size: 5, Negative conditional cache size: 5, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 41 PlacesBefore, 41 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 506 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 32, independent: 28, independent conditional: 28, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, independent: 7, independent conditional: 7, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, independent: 7, independent conditional: 7, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 32, independent: 21, independent conditional: 21, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 40, Positive conditional cache size: 40, Positive unconditional cache size: 0, Negative cache size: 6, Negative conditional cache size: 6, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 44 PlacesBefore, 44 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 522 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 26, independent: 24, independent conditional: 24, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 6, independent unconditional: 3, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 6, independent unconditional: 3, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 26, independent: 15, independent conditional: 15, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 9, unknown conditional: 9, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 55, Positive cache size: 49, Positive conditional cache size: 49, Positive unconditional cache size: 0, Negative cache size: 6, Negative conditional cache size: 6, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 46 PlacesBefore, 44 PlacesAfterwards, 46 TransitionsBefore, 44 TransitionsAfterwards, 336 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 92, independent: 88, independent conditional: 88, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 47, independent: 46, independent conditional: 29, independent unconditional: 17, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 47, independent: 46, independent conditional: 29, independent unconditional: 17, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 47, independent: 46, independent conditional: 0, independent unconditional: 46, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 92, independent: 42, independent conditional: 42, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 47, unknown conditional: 47, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 102, Positive cache size: 95, Positive conditional cache size: 95, Positive unconditional cache size: 0, Negative cache size: 7, Negative conditional cache size: 7, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 102, Positive cache size: 95, Positive conditional cache size: 95, Positive unconditional cache size: 0, Negative cache size: 7, Negative conditional cache size: 7, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 108 locations, 4 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: 4.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 94 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 94 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 330 IncrementalHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 7 mSDtfsCounter, 330 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=296occurred in iteration=5, InterpolantAutomatonStates: 24, 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, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 261 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! [2022-12-13 09:38:24,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...