/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 14:42:31,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 14:42:31,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 14:42:31,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 14:42:31,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 14:42:31,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 14:42:31,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 14:42:31,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 14:42:31,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 14:42:31,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 14:42:31,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 14:42:31,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 14:42:31,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 14:42:31,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 14:42:31,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 14:42:31,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 14:42:31,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 14:42:31,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 14:42:31,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 14:42:31,653 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 14:42:31,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 14:42:31,662 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 14:42:31,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 14:42:31,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 14:42:31,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 14:42:31,672 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 14:42:31,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 14:42:31,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 14:42:31,673 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 14:42:31,674 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 14:42:31,674 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 14:42:31,675 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 14:42:31,675 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 14:42:31,679 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 14:42:31,680 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 14:42:31,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 14:42:31,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 14:42:31,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 14:42:31,681 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 14:42:31,681 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 14:42:31,682 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 14:42:31,683 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-12 14:42:31,700 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 14:42:31,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 14:42:31,701 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 14:42:31,701 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 14:42:31,701 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 14:42:31,701 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 14:42:31,701 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 14:42:31,702 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 14:42:31,702 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 14:42:31,702 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 14:42:31,702 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 14:42:31,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 14:42:31,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 14:42:31,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 14:42:31,702 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 14:42:31,702 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 14:42:31,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 14:42:31,703 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 14:42:31,703 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 14:42:31,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 14:42:31,703 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 14:42:31,703 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 14:42:31,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 14:42:31,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 14:42:31,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 14:42:31,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 14:42:31,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 14:42:31,704 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 14:42:31,704 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 14:42:31,704 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 14:42:31,704 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-12 14:42:31,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 14:42:31,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 14:42:31,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 14:42:31,976 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 14:42:31,977 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 14:42:31,978 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.i [2022-12-12 14:42:32,883 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 14:42:33,103 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 14:42:33,103 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.i [2022-12-12 14:42:33,113 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae81ad983/459964dc0f3f4c7798f7cc32b4f77539/FLAG15f91c8f2 [2022-12-12 14:42:33,123 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae81ad983/459964dc0f3f4c7798f7cc32b4f77539 [2022-12-12 14:42:33,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 14:42:33,128 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 14:42:33,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 14:42:33,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 14:42:33,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 14:42:33,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 02:42:33" (1/1) ... [2022-12-12 14:42:33,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e151d50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:42:33, skipping insertion in model container [2022-12-12 14:42:33,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 02:42:33" (1/1) ... [2022-12-12 14:42:33,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 14:42:33,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 14:42:33,313 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/safe032_tso.i[945,958] [2022-12-12 14:42:33,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,444 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,444 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,444 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,452 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,453 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,455 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 14:42:33,464 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 14:42:33,474 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/safe032_tso.i[945,958] [2022-12-12 14:42:33,501 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,502 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,502 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,502 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,502 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,502 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,502 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,502 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,503 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,503 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,503 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,503 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,503 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,504 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,504 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,504 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,504 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,504 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,504 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,504 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,505 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,505 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,505 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,505 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,505 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,505 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,506 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,506 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,508 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,508 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,508 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,509 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,509 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:42:33,509 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:42:33,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 14:42:33,541 INFO L208 MainTranslator]: Completed translation [2022-12-12 14:42:33,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:42:33 WrapperNode [2022-12-12 14:42:33,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 14:42:33,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 14:42:33,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 14:42:33,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 14:42:33,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:42:33" (1/1) ... [2022-12-12 14:42:33,572 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:42:33" (1/1) ... [2022-12-12 14:42:33,589 INFO L138 Inliner]: procedures = 176, calls = 57, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-12-12 14:42:33,589 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 14:42:33,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 14:42:33,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 14:42:33,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 14:42:33,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:42:33" (1/1) ... [2022-12-12 14:42:33,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:42:33" (1/1) ... [2022-12-12 14:42:33,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:42:33" (1/1) ... [2022-12-12 14:42:33,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:42:33" (1/1) ... [2022-12-12 14:42:33,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:42:33" (1/1) ... [2022-12-12 14:42:33,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:42:33" (1/1) ... [2022-12-12 14:42:33,614 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:42:33" (1/1) ... [2022-12-12 14:42:33,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:42:33" (1/1) ... [2022-12-12 14:42:33,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 14:42:33,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 14:42:33,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 14:42:33,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 14:42:33,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:42:33" (1/1) ... [2022-12-12 14:42:33,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 14:42:33,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 14:42:33,659 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) [2022-12-12 14:42:33,673 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 [2022-12-12 14:42:33,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 14:42:33,682 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 14:42:33,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 14:42:33,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 14:42:33,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 14:42:33,682 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 14:42:33,682 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 14:42:33,683 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 14:42:33,683 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 14:42:33,683 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-12 14:42:33,683 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-12 14:42:33,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 14:42:33,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 14:42:33,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 14:42:33,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 14:42:33,684 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 14:42:33,769 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 14:42:33,771 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 14:42:33,935 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 14:42:33,939 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 14:42:33,940 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 14:42:33,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 02:42:33 BoogieIcfgContainer [2022-12-12 14:42:33,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 14:42:33,943 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 14:42:33,943 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 14:42:33,945 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 14:42:33,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 02:42:33" (1/3) ... [2022-12-12 14:42:33,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54cc4211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 02:42:33, skipping insertion in model container [2022-12-12 14:42:33,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:42:33" (2/3) ... [2022-12-12 14:42:33,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54cc4211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 02:42:33, skipping insertion in model container [2022-12-12 14:42:33,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 02:42:33" (3/3) ... [2022-12-12 14:42:33,946 INFO L112 eAbstractionObserver]: Analyzing ICFG safe032_tso.i [2022-12-12 14:42:33,958 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 14:42:33,959 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 14:42:33,959 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 14:42:33,998 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 14:42:34,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 84 transitions, 183 flow [2022-12-12 14:42:34,064 INFO L130 PetriNetUnfolder]: 2/81 cut-off events. [2022-12-12 14:42:34,064 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 14:42:34,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-12 14:42:34,070 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 84 transitions, 183 flow [2022-12-12 14:42:34,074 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 69 transitions, 147 flow [2022-12-12 14:42:34,076 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 14:42:34,091 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 69 transitions, 147 flow [2022-12-12 14:42:34,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 69 transitions, 147 flow [2022-12-12 14:42:34,124 INFO L130 PetriNetUnfolder]: 1/69 cut-off events. [2022-12-12 14:42:34,124 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 14:42:34,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 69 events. 1/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-12-12 14:42:34,126 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 69 transitions, 147 flow [2022-12-12 14:42:34,126 INFO L226 LiptonReduction]: Number of co-enabled transitions 1044 [2022-12-12 14:42:35,959 INFO L241 LiptonReduction]: Total number of compositions: 52 [2022-12-12 14:42:35,970 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 14:42:35,974 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3e44e36a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 14:42:35,975 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 14:42:35,978 INFO L130 PetriNetUnfolder]: 0/18 cut-off events. [2022-12-12 14:42:35,978 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 14:42:35,978 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:42:35,979 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:42:35,979 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)] === [2022-12-12 14:42:35,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:42:35,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1779919686, now seen corresponding path program 1 times [2022-12-12 14:42:35,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:42:35,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477548640] [2022-12-12 14:42:35,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:42:35,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:42:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:42:36,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:42:36,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:42:36,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477548640] [2022-12-12 14:42:36,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477548640] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:42:36,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:42:36,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 14:42:36,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914133994] [2022-12-12 14:42:36,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:42:36,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 14:42:36,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:42:36,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 14:42:36,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 14:42:36,360 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2022-12-12 14:42:36,361 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-12-12 14:42:36,361 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:42:36,361 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2022-12-12 14:42:36,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:42:36,465 INFO L130 PetriNetUnfolder]: 461/791 cut-off events. [2022-12-12 14:42:36,465 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-12-12 14:42:36,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1564 conditions, 791 events. 461/791 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4123 event pairs, 155 based on Foata normal form. 32/642 useless extension candidates. Maximal degree in co-relation 1553. Up to 507 conditions per place. [2022-12-12 14:42:36,472 INFO L137 encePairwiseOnDemand]: 23/27 looper letters, 25 selfloop transitions, 2 changer transitions 0/35 dead transitions. [2022-12-12 14:42:36,472 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 35 transitions, 136 flow [2022-12-12 14:42:36,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 14:42:36,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 14:42:36,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2022-12-12 14:42:36,481 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2022-12-12 14:42:36,482 INFO L175 Difference]: Start difference. First operand has 36 places, 27 transitions, 63 flow. Second operand 3 states and 54 transitions. [2022-12-12 14:42:36,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 35 transitions, 136 flow [2022-12-12 14:42:36,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 35 transitions, 132 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-12 14:42:36,486 INFO L231 Difference]: Finished difference. Result has 36 places, 26 transitions, 66 flow [2022-12-12 14:42:36,488 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=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2022-12-12 14:42:36,490 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 0 predicate places. [2022-12-12 14:42:36,491 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 66 flow [2022-12-12 14:42:36,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-12-12 14:42:36,491 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:42:36,491 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:42:36,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 14:42:36,492 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)] === [2022-12-12 14:42:36,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:42:36,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1078865772, now seen corresponding path program 1 times [2022-12-12 14:42:36,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:42:36,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641431666] [2022-12-12 14:42:36,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:42:36,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:42:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:42:36,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:42:36,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:42:36,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641431666] [2022-12-12 14:42:36,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641431666] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:42:36,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:42:36,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 14:42:36,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694974589] [2022-12-12 14:42:36,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:42:36,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 14:42:36,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:42:36,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 14:42:36,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 14:42:36,569 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2022-12-12 14:42:36,569 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2022-12-12 14:42:36,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:42:36,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2022-12-12 14:42:36,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:42:36,660 INFO L130 PetriNetUnfolder]: 460/809 cut-off events. [2022-12-12 14:42:36,660 INFO L131 PetriNetUnfolder]: For 54/54 co-relation queries the response was YES. [2022-12-12 14:42:36,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1629 conditions, 809 events. 460/809 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 4317 event pairs, 130 based on Foata normal form. 6/639 useless extension candidates. Maximal degree in co-relation 1618. Up to 670 conditions per place. [2022-12-12 14:42:36,665 INFO L137 encePairwiseOnDemand]: 23/27 looper letters, 26 selfloop transitions, 3 changer transitions 0/37 dead transitions. [2022-12-12 14:42:36,665 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 37 transitions, 150 flow [2022-12-12 14:42:36,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 14:42:36,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 14:42:36,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2022-12-12 14:42:36,666 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2022-12-12 14:42:36,667 INFO L175 Difference]: Start difference. First operand has 36 places, 26 transitions, 66 flow. Second operand 3 states and 54 transitions. [2022-12-12 14:42:36,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 37 transitions, 150 flow [2022-12-12 14:42:36,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 37 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-12 14:42:36,668 INFO L231 Difference]: Finished difference. Result has 37 places, 28 transitions, 81 flow [2022-12-12 14:42:36,668 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2022-12-12 14:42:36,669 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places. [2022-12-12 14:42:36,669 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 81 flow [2022-12-12 14:42:36,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2022-12-12 14:42:36,669 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:42:36,669 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:42:36,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 14:42:36,669 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)] === [2022-12-12 14:42:36,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:42:36,670 INFO L85 PathProgramCache]: Analyzing trace with hash 903137074, now seen corresponding path program 1 times [2022-12-12 14:42:36,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:42:36,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072021145] [2022-12-12 14:42:36,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:42:36,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:42:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:42:36,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:42:36,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:42:36,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072021145] [2022-12-12 14:42:36,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072021145] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:42:36,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:42:36,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 14:42:36,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366053436] [2022-12-12 14:42:36,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:42:36,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 14:42:36,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:42:36,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 14:42:36,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 14:42:36,750 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-12 14:42:36,750 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 81 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2022-12-12 14:42:36,750 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:42:36,750 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-12 14:42:36,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:42:36,907 INFO L130 PetriNetUnfolder]: 1097/1824 cut-off events. [2022-12-12 14:42:36,908 INFO L131 PetriNetUnfolder]: For 514/514 co-relation queries the response was YES. [2022-12-12 14:42:36,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4075 conditions, 1824 events. 1097/1824 cut-off events. For 514/514 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 9917 event pairs, 197 based on Foata normal form. 126/1578 useless extension candidates. Maximal degree in co-relation 4063. Up to 736 conditions per place. [2022-12-12 14:42:36,913 INFO L137 encePairwiseOnDemand]: 19/27 looper letters, 39 selfloop transitions, 10 changer transitions 7/62 dead transitions. [2022-12-12 14:42:36,913 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 62 transitions, 287 flow [2022-12-12 14:42:36,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 14:42:36,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 14:42:36,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 77 transitions. [2022-12-12 14:42:36,914 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7129629629629629 [2022-12-12 14:42:36,914 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 81 flow. Second operand 4 states and 77 transitions. [2022-12-12 14:42:36,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 62 transitions, 287 flow [2022-12-12 14:42:36,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 62 transitions, 280 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-12 14:42:36,916 INFO L231 Difference]: Finished difference. Result has 42 places, 34 transitions, 151 flow [2022-12-12 14:42:36,916 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=151, PETRI_PLACES=42, PETRI_TRANSITIONS=34} [2022-12-12 14:42:36,916 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 6 predicate places. [2022-12-12 14:42:36,917 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 34 transitions, 151 flow [2022-12-12 14:42:36,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2022-12-12 14:42:36,917 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:42:36,917 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:42:36,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 14:42:36,917 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)] === [2022-12-12 14:42:36,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:42:36,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1725699691, now seen corresponding path program 1 times [2022-12-12 14:42:36,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:42:36,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191331044] [2022-12-12 14:42:36,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:42:36,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:42:36,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:42:36,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:42:36,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:42:36,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191331044] [2022-12-12 14:42:36,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191331044] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:42:36,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:42:36,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 14:42:36,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767936868] [2022-12-12 14:42:36,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:42:36,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 14:42:36,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:42:36,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 14:42:36,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 14:42:36,993 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-12 14:42:36,993 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 151 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) [2022-12-12 14:42:36,993 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:42:36,993 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-12 14:42:36,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:42:37,173 INFO L130 PetriNetUnfolder]: 949/1626 cut-off events. [2022-12-12 14:42:37,173 INFO L131 PetriNetUnfolder]: For 1008/1008 co-relation queries the response was YES. [2022-12-12 14:42:37,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4335 conditions, 1626 events. 949/1626 cut-off events. For 1008/1008 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 8608 event pairs, 195 based on Foata normal form. 12/1292 useless extension candidates. Maximal degree in co-relation 4319. Up to 528 conditions per place. [2022-12-12 14:42:37,179 INFO L137 encePairwiseOnDemand]: 19/27 looper letters, 38 selfloop transitions, 13 changer transitions 16/73 dead transitions. [2022-12-12 14:42:37,179 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 73 transitions, 417 flow [2022-12-12 14:42:37,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 14:42:37,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 14:42:37,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 97 transitions. [2022-12-12 14:42:37,180 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5987654320987654 [2022-12-12 14:42:37,180 INFO L175 Difference]: Start difference. First operand has 42 places, 34 transitions, 151 flow. Second operand 6 states and 97 transitions. [2022-12-12 14:42:37,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 73 transitions, 417 flow [2022-12-12 14:42:37,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 73 transitions, 417 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-12 14:42:37,183 INFO L231 Difference]: Finished difference. Result has 51 places, 37 transitions, 221 flow [2022-12-12 14:42:37,183 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=221, PETRI_PLACES=51, PETRI_TRANSITIONS=37} [2022-12-12 14:42:37,184 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 15 predicate places. [2022-12-12 14:42:37,184 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 37 transitions, 221 flow [2022-12-12 14:42:37,184 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) [2022-12-12 14:42:37,184 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:42:37,184 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:42:37,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 14:42:37,184 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)] === [2022-12-12 14:42:37,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:42:37,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1008540495, now seen corresponding path program 2 times [2022-12-12 14:42:37,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:42:37,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258599946] [2022-12-12 14:42:37,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:42:37,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:42:37,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:42:37,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:42:37,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:42:37,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258599946] [2022-12-12 14:42:37,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258599946] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:42:37,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:42:37,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 14:42:37,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969276112] [2022-12-12 14:42:37,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:42:37,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 14:42:37,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:42:37,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 14:42:37,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 14:42:37,254 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-12 14:42:37,255 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 37 transitions, 221 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2022-12-12 14:42:37,255 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:42:37,255 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-12 14:42:37,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:42:37,418 INFO L130 PetriNetUnfolder]: 1080/1884 cut-off events. [2022-12-12 14:42:37,421 INFO L131 PetriNetUnfolder]: For 2908/2957 co-relation queries the response was YES. [2022-12-12 14:42:37,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5151 conditions, 1884 events. 1080/1884 cut-off events. For 2908/2957 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 11556 event pairs, 248 based on Foata normal form. 43/1052 useless extension candidates. Maximal degree in co-relation 5129. Up to 1213 conditions per place. [2022-12-12 14:42:37,430 INFO L137 encePairwiseOnDemand]: 15/27 looper letters, 54 selfloop transitions, 20 changer transitions 3/89 dead transitions. [2022-12-12 14:42:37,431 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 89 transitions, 624 flow [2022-12-12 14:42:37,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 14:42:37,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 14:42:37,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 93 transitions. [2022-12-12 14:42:37,432 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6888888888888889 [2022-12-12 14:42:37,432 INFO L175 Difference]: Start difference. First operand has 51 places, 37 transitions, 221 flow. Second operand 5 states and 93 transitions. [2022-12-12 14:42:37,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 89 transitions, 624 flow [2022-12-12 14:42:37,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 89 transitions, 622 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-12 14:42:37,437 INFO L231 Difference]: Finished difference. Result has 56 places, 56 transitions, 369 flow [2022-12-12 14:42:37,438 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=369, PETRI_PLACES=56, PETRI_TRANSITIONS=56} [2022-12-12 14:42:37,438 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 20 predicate places. [2022-12-12 14:42:37,438 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 56 transitions, 369 flow [2022-12-12 14:42:37,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2022-12-12 14:42:37,439 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:42:37,439 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:42:37,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 14:42:37,439 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)] === [2022-12-12 14:42:37,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:42:37,439 INFO L85 PathProgramCache]: Analyzing trace with hash 648464106, now seen corresponding path program 1 times [2022-12-12 14:42:37,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:42:37,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055102386] [2022-12-12 14:42:37,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:42:37,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:42:37,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:42:37,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:42:37,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:42:37,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055102386] [2022-12-12 14:42:37,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055102386] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:42:37,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:42:37,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 14:42:37,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497178573] [2022-12-12 14:42:37,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:42:37,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 14:42:37,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:42:37,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 14:42:37,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 14:42:37,509 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-12 14:42:37,510 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 56 transitions, 369 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) [2022-12-12 14:42:37,510 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:42:37,510 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-12 14:42:37,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:42:37,696 INFO L130 PetriNetUnfolder]: 981/1836 cut-off events. [2022-12-12 14:42:37,696 INFO L131 PetriNetUnfolder]: For 3447/3707 co-relation queries the response was YES. [2022-12-12 14:42:37,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7693 conditions, 1836 events. 981/1836 cut-off events. For 3447/3707 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 12271 event pairs, 41 based on Foata normal form. 93/1072 useless extension candidates. Maximal degree in co-relation 7667. Up to 1342 conditions per place. [2022-12-12 14:42:37,707 INFO L137 encePairwiseOnDemand]: 15/27 looper letters, 48 selfloop transitions, 39 changer transitions 15/114 dead transitions. [2022-12-12 14:42:37,707 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 114 transitions, 978 flow [2022-12-12 14:42:37,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 14:42:37,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 14:42:37,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 130 transitions. [2022-12-12 14:42:37,708 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6878306878306878 [2022-12-12 14:42:37,708 INFO L175 Difference]: Start difference. First operand has 56 places, 56 transitions, 369 flow. Second operand 7 states and 130 transitions. [2022-12-12 14:42:37,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 114 transitions, 978 flow [2022-12-12 14:42:37,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 114 transitions, 968 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-12 14:42:37,714 INFO L231 Difference]: Finished difference. Result has 64 places, 72 transitions, 596 flow [2022-12-12 14:42:37,715 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=596, PETRI_PLACES=64, PETRI_TRANSITIONS=72} [2022-12-12 14:42:37,715 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 28 predicate places. [2022-12-12 14:42:37,715 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 72 transitions, 596 flow [2022-12-12 14:42:37,715 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) [2022-12-12 14:42:37,715 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:42:37,716 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:42:37,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 14:42:37,716 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 14:42:37,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:42:37,716 INFO L85 PathProgramCache]: Analyzing trace with hash -79062106, now seen corresponding path program 1 times [2022-12-12 14:42:37,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:42:37,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532778036] [2022-12-12 14:42:37,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:42:37,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:42:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:42:37,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:42:37,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:42:37,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532778036] [2022-12-12 14:42:37,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532778036] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:42:37,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:42:37,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 14:42:37,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183910672] [2022-12-12 14:42:37,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:42:37,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 14:42:37,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:42:37,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 14:42:37,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-12 14:42:37,788 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-12 14:42:37,788 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 72 transitions, 596 flow. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2022-12-12 14:42:37,788 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:42:37,788 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-12 14:42:37,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:42:37,996 INFO L130 PetriNetUnfolder]: 711/1476 cut-off events. [2022-12-12 14:42:37,996 INFO L131 PetriNetUnfolder]: For 3769/4060 co-relation queries the response was YES. [2022-12-12 14:42:37,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7829 conditions, 1476 events. 711/1476 cut-off events. For 3769/4060 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 10690 event pairs, 14 based on Foata normal form. 65/900 useless extension candidates. Maximal degree in co-relation 7799. Up to 1018 conditions per place. [2022-12-12 14:42:38,002 INFO L137 encePairwiseOnDemand]: 15/27 looper letters, 0 selfloop transitions, 0 changer transitions 108/108 dead transitions. [2022-12-12 14:42:38,002 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 108 transitions, 1063 flow [2022-12-12 14:42:38,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-12 14:42:38,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-12 14:42:38,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 135 transitions. [2022-12-12 14:42:38,005 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2022-12-12 14:42:38,005 INFO L175 Difference]: Start difference. First operand has 64 places, 72 transitions, 596 flow. Second operand 9 states and 135 transitions. [2022-12-12 14:42:38,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 108 transitions, 1063 flow [2022-12-12 14:42:38,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 108 transitions, 878 flow, removed 49 selfloop flow, removed 8 redundant places. [2022-12-12 14:42:38,038 INFO L231 Difference]: Finished difference. Result has 63 places, 0 transitions, 0 flow [2022-12-12 14:42:38,038 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=63, PETRI_TRANSITIONS=0} [2022-12-12 14:42:38,039 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 27 predicate places. [2022-12-12 14:42:38,039 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 0 transitions, 0 flow [2022-12-12 14:42:38,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2022-12-12 14:42:38,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 14:42:38,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 14:42:38,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 14:42:38,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-12 14:42:38,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 14:42:38,043 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2022-12-12 14:42:38,045 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 14:42:38,045 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 14:42:38,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 02:42:38 BasicIcfg [2022-12-12 14:42:38,053 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 14:42:38,054 INFO L158 Benchmark]: Toolchain (without parser) took 4926.05ms. Allocated memory was 175.1MB in the beginning and 268.4MB in the end (delta: 93.3MB). Free memory was 149.9MB in the beginning and 207.7MB in the end (delta: -57.8MB). Peak memory consumption was 166.1MB. Max. memory is 8.0GB. [2022-12-12 14:42:38,054 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 127.9MB. Free memory was 105.2MB in the beginning and 105.2MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 14:42:38,054 INFO L158 Benchmark]: CACSL2BoogieTranslator took 413.35ms. Allocated memory is still 175.1MB. Free memory was 149.9MB in the beginning and 126.2MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-12 14:42:38,054 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.65ms. Allocated memory is still 175.1MB. Free memory was 126.2MB in the beginning and 124.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 14:42:38,055 INFO L158 Benchmark]: Boogie Preprocessor took 42.66ms. Allocated memory is still 175.1MB. Free memory was 124.0MB in the beginning and 153.3MB in the end (delta: -29.3MB). Peak memory consumption was 4.7MB. Max. memory is 8.0GB. [2022-12-12 14:42:38,056 INFO L158 Benchmark]: RCFGBuilder took 308.26ms. Allocated memory is still 175.1MB. Free memory was 153.3MB in the beginning and 140.3MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-12 14:42:38,056 INFO L158 Benchmark]: TraceAbstraction took 4110.60ms. Allocated memory was 175.1MB in the beginning and 268.4MB in the end (delta: 93.3MB). Free memory was 139.2MB in the beginning and 207.7MB in the end (delta: -68.5MB). Peak memory consumption was 155.0MB. Max. memory is 8.0GB. [2022-12-12 14:42:38,057 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 127.9MB. Free memory was 105.2MB in the beginning and 105.2MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 413.35ms. Allocated memory is still 175.1MB. Free memory was 149.9MB in the beginning and 126.2MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.65ms. Allocated memory is still 175.1MB. Free memory was 126.2MB in the beginning and 124.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.66ms. Allocated memory is still 175.1MB. Free memory was 124.0MB in the beginning and 153.3MB in the end (delta: -29.3MB). Peak memory consumption was 4.7MB. Max. memory is 8.0GB. * RCFGBuilder took 308.26ms. Allocated memory is still 175.1MB. Free memory was 153.3MB in the beginning and 140.3MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4110.60ms. Allocated memory was 175.1MB in the beginning and 268.4MB in the end (delta: 93.3MB). Free memory was 139.2MB in the beginning and 207.7MB in the end (delta: -68.5MB). Peak memory consumption was 155.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 78 PlacesBefore, 36 PlacesAfterwards, 69 TransitionsBefore, 27 TransitionsAfterwards, 1044 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 19 TrivialYvCompositions, 32 ConcurrentYvCompositions, 0 ChoiceCompositions, 52 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1112, independent: 1058, independent conditional: 1058, independent unconditional: 0, dependent: 54, dependent conditional: 54, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1112, independent: 1058, independent conditional: 0, independent unconditional: 1058, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1112, independent: 1058, independent conditional: 0, independent unconditional: 1058, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1112, independent: 1058, independent conditional: 0, independent unconditional: 1058, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 801, independent: 769, independent conditional: 0, independent unconditional: 769, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 801, independent: 756, independent conditional: 0, independent unconditional: 756, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 45, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, independent: 28, independent conditional: 0, independent unconditional: 28, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1112, independent: 289, independent conditional: 0, independent unconditional: 289, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 801, unknown conditional: 0, unknown unconditional: 801] , Statistics on independence cache: Total cache size (in pairs): 1232, Positive cache size: 1200, Positive conditional cache size: 0, Positive unconditional cache size: 1200, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - 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, 107 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: 4.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 201 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 201 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 519 IncrementalHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 8 mSDtfsCounter, 519 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=596occurred in iteration=6, InterpolantAutomatonStates: 37, 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, 0.6s InterpolantComputationTime, 81 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 242 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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! [2022-12-12 14:42:38,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...