/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-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/fib_safe-6.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 02:44:27,476 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 02:44:27,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 02:44:27,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 02:44:27,519 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 02:44:27,522 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 02:44:27,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 02:44:27,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 02:44:27,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 02:44:27,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 02:44:27,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 02:44:27,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 02:44:27,543 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 02:44:27,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 02:44:27,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 02:44:27,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 02:44:27,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 02:44:27,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 02:44:27,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 02:44:27,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 02:44:27,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 02:44:27,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 02:44:27,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 02:44:27,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 02:44:27,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 02:44:27,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 02:44:27,573 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 02:44:27,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 02:44:27,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 02:44:27,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 02:44:27,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 02:44:27,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 02:44:27,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 02:44:27,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 02:44:27,579 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 02:44:27,580 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 02:44:27,580 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 02:44:27,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 02:44:27,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 02:44:27,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 02:44:27,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 02:44:27,583 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-RepeatedSemanticLbe.epf [2022-12-13 02:44:27,609 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 02:44:27,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 02:44:27,611 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 02:44:27,611 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 02:44:27,612 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 02:44:27,612 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 02:44:27,612 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 02:44:27,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 02:44:27,613 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 02:44:27,613 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 02:44:27,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 02:44:27,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 02:44:27,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 02:44:27,614 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 02:44:27,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 02:44:27,614 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 02:44:27,614 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 02:44:27,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 02:44:27,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 02:44:27,615 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 02:44:27,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 02:44:27,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 02:44:27,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 02:44:27,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 02:44:27,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 02:44:27,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 02:44:27,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 02:44:27,616 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 02:44:27,616 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-13 02:44:27,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 02:44:27,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 02:44:27,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 02:44:27,962 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 02:44:27,962 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 02:44:27,963 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/fib_safe-6.i [2022-12-13 02:44:29,151 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 02:44:29,408 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 02:44:29,409 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_safe-6.i [2022-12-13 02:44:29,421 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e8d462b5/3d8ff15858c746f89cac7371aec7628d/FLAGb5a65c87c [2022-12-13 02:44:29,432 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e8d462b5/3d8ff15858c746f89cac7371aec7628d [2022-12-13 02:44:29,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 02:44:29,436 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 02:44:29,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 02:44:29,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 02:44:29,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 02:44:29,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:44:29" (1/1) ... [2022-12-13 02:44:29,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@134da33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:29, skipping insertion in model container [2022-12-13 02:44:29,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:44:29" (1/1) ... [2022-12-13 02:44:29,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 02:44:29,498 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 02:44:29,749 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/fib_safe-6.i[30241,30254] [2022-12-13 02:44:29,759 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:44:29,759 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:44:29,764 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:44:29,764 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:44:29,771 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:44:29,771 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:44:29,772 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:44:29,772 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:44:29,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:44:29,778 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:44:29,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 02:44:29,789 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 02:44:29,836 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/fib_safe-6.i[30241,30254] [2022-12-13 02:44:29,837 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:44:29,838 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:44:29,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:44:29,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:44:29,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:44:29,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:44:29,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:44:29,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:44:29,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 02:44:29,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 02:44:29,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 02:44:29,881 INFO L208 MainTranslator]: Completed translation [2022-12-13 02:44:29,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:29 WrapperNode [2022-12-13 02:44:29,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 02:44:29,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 02:44:29,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 02:44:29,884 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 02:44:29,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:29" (1/1) ... [2022-12-13 02:44:29,913 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:29" (1/1) ... [2022-12-13 02:44:29,930 INFO L138 Inliner]: procedures = 165, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 76 [2022-12-13 02:44:29,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 02:44:29,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 02:44:29,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 02:44:29,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 02:44:29,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:29" (1/1) ... [2022-12-13 02:44:29,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:29" (1/1) ... [2022-12-13 02:44:29,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:29" (1/1) ... [2022-12-13 02:44:29,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:29" (1/1) ... [2022-12-13 02:44:29,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:29" (1/1) ... [2022-12-13 02:44:29,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:29" (1/1) ... [2022-12-13 02:44:29,953 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:29" (1/1) ... [2022-12-13 02:44:29,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:29" (1/1) ... [2022-12-13 02:44:29,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 02:44:29,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 02:44:29,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 02:44:29,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 02:44:29,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:29" (1/1) ... [2022-12-13 02:44:29,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 02:44:29,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 02:44:29,997 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 02:44:30,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 02:44:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-12-13 02:44:30,045 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-12-13 02:44:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-12-13 02:44:30,046 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-12-13 02:44:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 02:44:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 02:44:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 02:44:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 02:44:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 02:44:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 02:44:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 02:44:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 02:44:30,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 02:44:30,048 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 02:44:30,227 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 02:44:30,229 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 02:44:30,377 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 02:44:30,383 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 02:44:30,384 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-13 02:44:30,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:44:30 BoogieIcfgContainer [2022-12-13 02:44:30,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 02:44:30,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 02:44:30,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 02:44:30,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 02:44:30,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:44:29" (1/3) ... [2022-12-13 02:44:30,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9816aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:44:30, skipping insertion in model container [2022-12-13 02:44:30,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:29" (2/3) ... [2022-12-13 02:44:30,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9816aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:44:30, skipping insertion in model container [2022-12-13 02:44:30,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:44:30" (3/3) ... [2022-12-13 02:44:30,394 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_safe-6.i [2022-12-13 02:44:30,411 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 02:44:30,412 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 02:44:30,412 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 02:44:30,485 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 02:44:30,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 93 transitions, 196 flow [2022-12-13 02:44:30,568 INFO L130 PetriNetUnfolder]: 7/91 cut-off events. [2022-12-13 02:44:30,569 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 02:44:30,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 91 events. 7/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 74 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2022-12-13 02:44:30,575 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 93 transitions, 196 flow [2022-12-13 02:44:30,578 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 91 transitions, 188 flow [2022-12-13 02:44:30,580 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 02:44:30,599 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 91 transitions, 188 flow [2022-12-13 02:44:30,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions, 188 flow [2022-12-13 02:44:30,642 INFO L130 PetriNetUnfolder]: 7/91 cut-off events. [2022-12-13 02:44:30,642 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 02:44:30,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 91 events. 7/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 74 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2022-12-13 02:44:30,646 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 91 transitions, 188 flow [2022-12-13 02:44:30,646 INFO L226 LiptonReduction]: Number of co-enabled transitions 1914 [2022-12-13 02:44:34,146 INFO L241 LiptonReduction]: Total number of compositions: 79 [2022-12-13 02:44:34,160 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 02:44:34,166 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3adad94d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 02:44:34,166 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-13 02:44:34,172 INFO L130 PetriNetUnfolder]: 3/26 cut-off events. [2022-12-13 02:44:34,172 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 02:44:34,173 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 02:44:34,173 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 02:44:34,174 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 02:44:34,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 02:44:34,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1807783243, now seen corresponding path program 1 times [2022-12-13 02:44:34,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 02:44:34,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691861421] [2022-12-13 02:44:34,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 02:44:34,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 02:44:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 02:44:34,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 02:44:34,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 02:44:34,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691861421] [2022-12-13 02:44:34,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691861421] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 02:44:34,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 02:44:34,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 02:44:34,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876665968] [2022-12-13 02:44:34,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 02:44:34,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 02:44:34,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 02:44:34,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 02:44:34,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 02:44:34,484 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 28 [2022-12-13 02:44:34,487 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 28 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 02:44:34,487 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 02:44:34,487 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 28 [2022-12-13 02:44:34,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 02:44:34,636 INFO L130 PetriNetUnfolder]: 657/1007 cut-off events. [2022-12-13 02:44:34,636 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-13 02:44:34,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2023 conditions, 1007 events. 657/1007 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 4231 event pairs, 175 based on Foata normal form. 0/387 useless extension candidates. Maximal degree in co-relation 2013. Up to 641 conditions per place. [2022-12-13 02:44:34,644 INFO L137 encePairwiseOnDemand]: 24/28 looper letters, 38 selfloop transitions, 2 changer transitions 1/45 dead transitions. [2022-12-13 02:44:34,644 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 45 transitions, 178 flow [2022-12-13 02:44:34,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 02:44:34,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 02:44:34,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2022-12-13 02:44:34,654 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6547619047619048 [2022-12-13 02:44:34,657 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places. [2022-12-13 02:44:34,657 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 45 transitions, 178 flow [2022-12-13 02:44:34,662 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 44 transitions, 174 flow [2022-12-13 02:44:34,667 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 02:44:34,668 INFO L89 Accepts]: Start accepts. Operand has 33 places, 44 transitions, 174 flow [2022-12-13 02:44:34,671 INFO L95 Accepts]: Finished accepts. [2022-12-13 02:44:34,671 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 02:44:34,671 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 44 transitions, 174 flow [2022-12-13 02:44:34,675 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 44 transitions, 174 flow [2022-12-13 02:44:34,675 INFO L226 LiptonReduction]: Number of co-enabled transitions 176 [2022-12-13 02:44:34,676 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 02:44:34,678 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 11 [2022-12-13 02:44:34,678 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 44 transitions, 174 flow [2022-12-13 02:44:34,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 02:44:34,678 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 02:44:34,678 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 02:44:34,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 02:44:34,679 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 02:44:34,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 02:44:34,680 INFO L85 PathProgramCache]: Analyzing trace with hash 206704716, now seen corresponding path program 1 times [2022-12-13 02:44:34,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 02:44:34,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369706520] [2022-12-13 02:44:34,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 02:44:34,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 02:44:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 02:44:34,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 02:44:34,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 02:44:34,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369706520] [2022-12-13 02:44:34,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369706520] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 02:44:34,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64836419] [2022-12-13 02:44:34,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 02:44:34,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 02:44:34,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 02:44:34,766 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 02:44:34,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 02:44:34,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 02:44:34,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 02:44:34,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 02:44:34,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 02:44:34,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 02:44:34,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 02:44:34,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64836419] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 02:44:34,946 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 02:44:34,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-12-13 02:44:34,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631114673] [2022-12-13 02:44:34,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 02:44:34,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 02:44:34,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 02:44:34,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 02:44:34,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 02:44:34,949 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 27 [2022-12-13 02:44:34,949 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 44 transitions, 174 flow. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 02:44:34,949 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 02:44:34,949 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 27 [2022-12-13 02:44:34,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 02:44:35,214 INFO L130 PetriNetUnfolder]: 913/1399 cut-off events. [2022-12-13 02:44:35,214 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-13 02:44:35,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4178 conditions, 1399 events. 913/1399 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 5992 event pairs, 175 based on Foata normal form. 0/651 useless extension candidates. Maximal degree in co-relation 4165. Up to 1025 conditions per place. [2022-12-13 02:44:35,225 INFO L137 encePairwiseOnDemand]: 24/27 looper letters, 86 selfloop transitions, 5 changer transitions 0/95 dead transitions. [2022-12-13 02:44:35,225 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 95 transitions, 560 flow [2022-12-13 02:44:35,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 02:44:35,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 02:44:35,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 118 transitions. [2022-12-13 02:44:35,228 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7283950617283951 [2022-12-13 02:44:35,229 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 6 predicate places. [2022-12-13 02:44:35,229 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 95 transitions, 560 flow [2022-12-13 02:44:35,238 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 95 transitions, 560 flow [2022-12-13 02:44:35,247 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 02:44:35,247 INFO L89 Accepts]: Start accepts. Operand has 38 places, 95 transitions, 560 flow [2022-12-13 02:44:35,248 INFO L95 Accepts]: Finished accepts. [2022-12-13 02:44:35,248 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 02:44:35,249 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 95 transitions, 560 flow [2022-12-13 02:44:35,255 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 95 transitions, 560 flow [2022-12-13 02:44:35,255 INFO L226 LiptonReduction]: Number of co-enabled transitions 392 [2022-12-13 02:44:35,256 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 02:44:35,259 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 12 [2022-12-13 02:44:35,259 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 95 transitions, 560 flow [2022-12-13 02:44:35,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 02:44:35,259 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 02:44:35,259 INFO L214 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2022-12-13 02:44:35,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 02:44:35,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 02:44:35,466 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 02:44:35,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 02:44:35,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1043870325, now seen corresponding path program 2 times [2022-12-13 02:44:35,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 02:44:35,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706713108] [2022-12-13 02:44:35,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 02:44:35,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 02:44:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 02:44:35,590 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 02:44:35,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 02:44:35,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706713108] [2022-12-13 02:44:35,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706713108] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 02:44:35,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855562345] [2022-12-13 02:44:35,593 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 02:44:35,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 02:44:35,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 02:44:35,595 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 02:44:35,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 02:44:35,694 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 02:44:35,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 02:44:35,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 02:44:35,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 02:44:35,717 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 02:44:35,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 02:44:35,776 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 02:44:35,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855562345] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 02:44:35,777 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 02:44:35,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-12-13 02:44:35,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654827614] [2022-12-13 02:44:35,777 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 02:44:35,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 02:44:35,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 02:44:35,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 02:44:35,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-12-13 02:44:35,780 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 27 [2022-12-13 02:44:35,781 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 95 transitions, 560 flow. Second operand has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 02:44:35,781 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 02:44:35,781 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 27 [2022-12-13 02:44:35,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 02:44:36,274 INFO L130 PetriNetUnfolder]: 1681/2556 cut-off events. [2022-12-13 02:44:36,274 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 02:44:36,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10170 conditions, 2556 events. 1681/2556 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 11035 event pairs, 175 based on Foata normal form. 0/1232 useless extension candidates. Maximal degree in co-relation 10154. Up to 2177 conditions per place. [2022-12-13 02:44:36,294 INFO L137 encePairwiseOnDemand]: 24/27 looper letters, 182 selfloop transitions, 11 changer transitions 0/197 dead transitions. [2022-12-13 02:44:36,294 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 197 transitions, 1558 flow [2022-12-13 02:44:36,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 02:44:36,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 02:44:36,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 247 transitions. [2022-12-13 02:44:36,299 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7623456790123457 [2022-12-13 02:44:36,301 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 17 predicate places. [2022-12-13 02:44:36,301 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 197 transitions, 1558 flow [2022-12-13 02:44:36,324 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 197 transitions, 1558 flow [2022-12-13 02:44:36,344 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 02:44:36,344 INFO L89 Accepts]: Start accepts. Operand has 49 places, 197 transitions, 1558 flow [2022-12-13 02:44:36,346 INFO L95 Accepts]: Finished accepts. [2022-12-13 02:44:36,346 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 02:44:36,347 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 197 transitions, 1558 flow [2022-12-13 02:44:36,357 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 197 transitions, 1558 flow [2022-12-13 02:44:36,357 INFO L226 LiptonReduction]: Number of co-enabled transitions 824 [2022-12-13 02:44:36,360 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 02:44:36,361 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 17 [2022-12-13 02:44:36,361 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 197 transitions, 1558 flow [2022-12-13 02:44:36,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 02:44:36,361 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 02:44:36,362 INFO L214 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1] [2022-12-13 02:44:36,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 02:44:36,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-12-13 02:44:36,570 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 02:44:36,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 02:44:36,571 INFO L85 PathProgramCache]: Analyzing trace with hash 2052466155, now seen corresponding path program 3 times [2022-12-13 02:44:36,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 02:44:36,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484174269] [2022-12-13 02:44:36,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 02:44:36,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 02:44:36,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 02:44:36,778 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 02:44:36,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 02:44:36,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484174269] [2022-12-13 02:44:36,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484174269] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 02:44:36,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347351113] [2022-12-13 02:44:36,779 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 02:44:36,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 02:44:36,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 02:44:36,781 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 02:44:36,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 02:44:36,912 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-12-13 02:44:36,913 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 02:44:36,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 02:44:36,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 02:44:36,945 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 02:44:36,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 02:44:37,067 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 02:44:37,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347351113] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 02:44:37,067 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 02:44:37,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 16 [2022-12-13 02:44:37,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393716318] [2022-12-13 02:44:37,068 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 02:44:37,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-13 02:44:37,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 02:44:37,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-13 02:44:37,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2022-12-13 02:44:37,071 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 27 [2022-12-13 02:44:37,071 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 197 transitions, 1558 flow. Second operand has 17 states, 17 states have (on average 5.352941176470588) internal successors, (91), 17 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 02:44:37,071 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 02:44:37,071 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 27 [2022-12-13 02:44:37,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 02:44:37,663 INFO L130 PetriNetUnfolder]: 2193/3324 cut-off events. [2022-12-13 02:44:37,663 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 02:44:37,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16541 conditions, 3324 events. 2193/3324 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 14376 event pairs, 175 based on Foata normal form. 0/1616 useless extension candidates. Maximal degree in co-relation 16522. Up to 2945 conditions per place. [2022-12-13 02:44:37,695 INFO L137 encePairwiseOnDemand]: 24/27 looper letters, 246 selfloop transitions, 15 changer transitions 0/265 dead transitions. [2022-12-13 02:44:37,696 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 265 transitions, 2624 flow [2022-12-13 02:44:37,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 02:44:37,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 02:44:37,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 329 transitions. [2022-12-13 02:44:37,698 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7615740740740741 [2022-12-13 02:44:37,699 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 32 predicate places. [2022-12-13 02:44:37,699 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 265 transitions, 2624 flow [2022-12-13 02:44:37,719 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 265 transitions, 2624 flow [2022-12-13 02:44:37,748 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 02:44:37,749 INFO L89 Accepts]: Start accepts. Operand has 64 places, 265 transitions, 2624 flow [2022-12-13 02:44:37,752 INFO L95 Accepts]: Finished accepts. [2022-12-13 02:44:37,752 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 02:44:37,752 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 265 transitions, 2624 flow [2022-12-13 02:44:37,768 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 265 transitions, 2624 flow [2022-12-13 02:44:37,769 INFO L226 LiptonReduction]: Number of co-enabled transitions 1112 [2022-12-13 02:44:37,772 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 02:44:37,774 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 26 [2022-12-13 02:44:37,774 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 265 transitions, 2624 flow [2022-12-13 02:44:37,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.352941176470588) internal successors, (91), 17 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 02:44:37,775 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 02:44:37,775 INFO L214 CegarLoopForPetriNet]: trace histogram [14, 1, 1, 1, 1, 1, 1] [2022-12-13 02:44:37,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-13 02:44:37,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 02:44:37,982 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 02:44:37,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 02:44:37,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1944325675, now seen corresponding path program 4 times [2022-12-13 02:44:37,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 02:44:37,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427769908] [2022-12-13 02:44:37,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 02:44:37,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 02:44:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 02:44:38,817 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 02:44:38,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 02:44:38,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427769908] [2022-12-13 02:44:38,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427769908] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 02:44:38,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581896591] [2022-12-13 02:44:38,818 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 02:44:38,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 02:44:38,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 02:44:38,824 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 02:44:38,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 02:44:38,911 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 02:44:38,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 02:44:38,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 50 conjunts are in the unsatisfiable core [2022-12-13 02:44:38,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 02:44:39,522 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 78 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 02:44:39,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 02:44:40,250 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 02:44:40,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581896591] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 02:44:40,251 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 02:44:40,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 45 [2022-12-13 02:44:40,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963837112] [2022-12-13 02:44:40,251 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 02:44:40,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-12-13 02:44:40,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 02:44:40,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-12-13 02:44:40,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=412, Invalid=1750, Unknown=0, NotChecked=0, Total=2162 [2022-12-13 02:44:40,254 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 27 [2022-12-13 02:44:40,254 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 265 transitions, 2624 flow. Second operand has 47 states, 47 states have (on average 5.276595744680851) internal successors, (248), 47 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 02:44:40,254 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 02:44:40,254 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 27 [2022-12-13 02:44:40,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 02:45:08,616 INFO L130 PetriNetUnfolder]: 153855/240906 cut-off events. [2022-12-13 02:45:08,617 INFO L131 PetriNetUnfolder]: For 52/52 co-relation queries the response was YES. [2022-12-13 02:45:08,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1392059 conditions, 240906 events. 153855/240906 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 8116. Compared 2213234 event pairs, 250 based on Foata normal form. 0/117549 useless extension candidates. Maximal degree in co-relation 1392037. Up to 227603 conditions per place. [2022-12-13 02:45:10,480 INFO L137 encePairwiseOnDemand]: 16/27 looper letters, 9218 selfloop transitions, 9947 changer transitions 0/19169 dead transitions. [2022-12-13 02:45:10,480 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 19169 transitions, 230015 flow [2022-12-13 02:45:10,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-12-13 02:45:10,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2022-12-13 02:45:10,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 3001 transitions. [2022-12-13 02:45:10,494 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8113003514463368 [2022-12-13 02:45:10,497 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 168 predicate places. [2022-12-13 02:45:10,497 INFO L82 GeneralOperation]: Start removeDead. Operand has 200 places, 19169 transitions, 230015 flow [2022-12-13 02:45:11,831 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 200 places, 19169 transitions, 230015 flow [2022-12-13 02:45:47,525 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 02:45:47,525 INFO L89 Accepts]: Start accepts. Operand has 200 places, 19169 transitions, 230015 flow [2022-12-13 02:45:47,558 INFO L95 Accepts]: Finished accepts. [2022-12-13 02:45:47,558 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 02:45:47,558 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 200 places, 19169 transitions, 230015 flow [2022-12-13 02:46:15,218 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 200 places, 19169 transitions, 230015 flow [2022-12-13 02:46:15,221 INFO L226 LiptonReduction]: Number of co-enabled transitions 77120 [2022-12-13 02:46:15,312 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 02:46:15,316 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 27791 [2022-12-13 02:46:15,316 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 19169 transitions, 230015 flow [2022-12-13 02:46:15,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 5.276595744680851) internal successors, (248), 47 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 02:46:15,319 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 02:46:15,319 INFO L214 CegarLoopForPetriNet]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 02:46:15,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-13 02:46:15,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 02:46:15,525 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 02:46:15,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 02:46:15,525 INFO L85 PathProgramCache]: Analyzing trace with hash -859475083, now seen corresponding path program 1 times [2022-12-13 02:46:15,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 02:46:15,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840963874] [2022-12-13 02:46:15,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 02:46:15,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 02:46:15,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 02:46:16,300 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 02:46:16,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 02:46:16,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840963874] [2022-12-13 02:46:16,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840963874] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 02:46:16,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061974787] [2022-12-13 02:46:16,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 02:46:16,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 02:46:16,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 02:46:16,303 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 02:46:16,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 02:46:16,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 02:46:16,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 52 conjunts are in the unsatisfiable core [2022-12-13 02:46:16,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 02:46:16,928 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 56 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 02:46:16,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 02:46:17,696 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 02:46:17,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061974787] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 02:46:17,697 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 02:46:17,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 51 [2022-12-13 02:46:17,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678894684] [2022-12-13 02:46:17,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 02:46:17,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-12-13 02:46:17,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 02:46:17,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-12-13 02:46:17,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=445, Invalid=2311, Unknown=0, NotChecked=0, Total=2756 [2022-12-13 02:46:17,699 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 27 [2022-12-13 02:46:17,700 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 19169 transitions, 230015 flow. Second operand has 53 states, 53 states have (on average 5.30188679245283) internal successors, (281), 53 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 02:46:17,700 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 02:46:17,700 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 27 [2022-12-13 02:46:17,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2022-12-13 02:55:57,050 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-13 02:55:57,088 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-13 02:55:57,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 231 states. [2022-12-13 02:55:57,433 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-13 02:55:57,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-13 02:55:57,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 02:55:57,634 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNetWithRepeatedLiptonReduction was enhancing Floyd-Hoare automaton (53states, 4/27 universal loopers) in iteration 6,while PetriNetUnfolder was constructing finite prefix that currently has 2459257 conditions, 358065 events (231458/358064 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 62488. Compared 3919902 event pairs, 64 based on Foata normal form. 0/182107 useless extension candidates. Maximal degree in co-relation 2459232. Up to 346350 conditions per place.). [2022-12-13 02:55:57,636 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-13 02:55:57,636 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-13 02:55:57,636 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1] [2022-12-13 02:55:57,640 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 02:55:57,640 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 02:55:57,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 02:55:57 BasicIcfg [2022-12-13 02:55:57,645 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 02:55:57,646 INFO L158 Benchmark]: Toolchain (without parser) took 688209.78ms. Allocated memory was 185.6MB in the beginning and 6.2GB in the end (delta: 6.0GB). Free memory was 160.3MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 6.0GB. Max. memory is 8.0GB. [2022-12-13 02:55:57,646 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 185.6MB. Free memory is still 161.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 02:55:57,646 INFO L158 Benchmark]: CACSL2BoogieTranslator took 445.69ms. Allocated memory is still 185.6MB. Free memory was 160.3MB in the beginning and 140.2MB in the end (delta: 20.1MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-13 02:55:57,646 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.61ms. Allocated memory is still 185.6MB. Free memory was 140.2MB in the beginning and 138.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 02:55:57,647 INFO L158 Benchmark]: Boogie Preprocessor took 25.27ms. Allocated memory is still 185.6MB. Free memory was 138.1MB in the beginning and 136.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 02:55:57,647 INFO L158 Benchmark]: RCFGBuilder took 428.73ms. Allocated memory is still 185.6MB. Free memory was 136.5MB in the beginning and 121.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-13 02:55:57,647 INFO L158 Benchmark]: TraceAbstraction took 687256.36ms. Allocated memory was 185.6MB in the beginning and 6.2GB in the end (delta: 6.0GB). Free memory was 120.8MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 6.0GB. Max. memory is 8.0GB. [2022-12-13 02:55:57,650 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 185.6MB. Free memory is still 161.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 445.69ms. Allocated memory is still 185.6MB. Free memory was 160.3MB in the beginning and 140.2MB in the end (delta: 20.1MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.61ms. Allocated memory is still 185.6MB. Free memory was 140.2MB in the beginning and 138.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.27ms. Allocated memory is still 185.6MB. Free memory was 138.1MB in the beginning and 136.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 428.73ms. Allocated memory is still 185.6MB. Free memory was 136.5MB in the beginning and 121.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 687256.36ms. Allocated memory was 185.6MB in the beginning and 6.2GB in the end (delta: 6.0GB). Free memory was 120.8MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 6.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.5s, 91 PlacesBefore, 32 PlacesAfterwards, 91 TransitionsBefore, 28 TransitionsAfterwards, 1914 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 26 TrivialYvCompositions, 47 ConcurrentYvCompositions, 6 ChoiceCompositions, 79 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1670, independent: 1655, independent conditional: 1655, independent unconditional: 0, dependent: 15, dependent conditional: 15, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1670, independent: 1655, independent conditional: 0, independent unconditional: 1655, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1670, independent: 1655, independent conditional: 0, independent unconditional: 1655, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1670, independent: 1655, independent conditional: 0, independent unconditional: 1655, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1406, independent: 1395, independent conditional: 0, independent unconditional: 1395, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1406, independent: 1395, independent conditional: 0, independent unconditional: 1395, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 11, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 53, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1670, independent: 260, independent conditional: 0, independent unconditional: 260, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 1406, unknown conditional: 0, unknown unconditional: 1406] , Statistics on independence cache: Total cache size (in pairs): 2636, Positive cache size: 2625, Positive conditional cache size: 0, Positive unconditional cache size: 2625, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 33 PlacesBefore, 33 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 176 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 38 PlacesBefore, 38 PlacesAfterwards, 95 TransitionsBefore, 95 TransitionsAfterwards, 392 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 49 PlacesBefore, 49 PlacesAfterwards, 197 TransitionsBefore, 197 TransitionsAfterwards, 824 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 64 PlacesBefore, 64 PlacesAfterwards, 265 TransitionsBefore, 265 TransitionsAfterwards, 1112 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 200 PlacesBefore, 200 PlacesAfterwards, 19169 TransitionsBefore, 19169 TransitionsAfterwards, 77120 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - TimeoutResultAtElement [Line: 681]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was enhancing Floyd-Hoare automaton (53states, 4/27 universal loopers) in iteration 6,while PetriNetUnfolder was constructing finite prefix that currently has 2459257 conditions, 358065 events (231458/358064 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 62488. Compared 3919902 event pairs, 64 based on Foata normal form. 0/182107 useless extension candidates. Maximal degree in co-relation 2459232. Up to 346350 conditions per place.). - TimeoutResultAtElement [Line: 720]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was enhancing Floyd-Hoare automaton (53states, 4/27 universal loopers) in iteration 6,while PetriNetUnfolder was constructing finite prefix that currently has 2459257 conditions, 358065 events (231458/358064 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 62488. Compared 3919902 event pairs, 64 based on Foata normal form. 0/182107 useless extension candidates. Maximal degree in co-relation 2459232. Up to 346350 conditions per place.). - TimeoutResultAtElement [Line: 721]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was enhancing Floyd-Hoare automaton (53states, 4/27 universal loopers) in iteration 6,while PetriNetUnfolder was constructing finite prefix that currently has 2459257 conditions, 358065 events (231458/358064 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 62488. Compared 3919902 event pairs, 64 based on Foata normal form. 0/182107 useless extension candidates. Maximal degree in co-relation 2459232. Up to 346350 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 109 locations, 3 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: 687.1s, OverallIterations: 6, TraceHistogramMax: 14, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 611.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7979 SdHoareTripleChecker+Valid, 8.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7979 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 7.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3860 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12434 IncrementalHoareTripleChecker+Invalid, 16294 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3860 mSolverCounterUnsat, 0 mSDtfsCounter, 12434 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 525 GetRequests, 61 SyntacticMatches, 8 SemanticMatches, 456 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39326 ImplicationChecksByTransitivity, 22.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=230015occurred in iteration=5, InterpolantAutomatonStates: 174, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 158 NumberOfCodeBlocks, 158 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 2280 SizeOfPredicates, 26 NumberOfNonLiveVariables, 1011 ConjunctsInSsa, 123 ConjunctsInUnsatCore, 16 InterpolantComputations, 1 PerfectInterpolantSequences, 134/831 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown