./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fa97ad6141e9aa8818b694f4968e766701fe7261f516cd86f7a15e5cf1a3d14d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 19:12:31,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 19:12:31,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 19:12:31,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 19:12:31,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 19:12:31,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 19:12:31,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 19:12:31,647 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 19:12:31,649 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 19:12:31,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 19:12:31,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 19:12:31,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 19:12:31,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 19:12:31,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 19:12:31,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 19:12:31,663 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 19:12:31,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 19:12:31,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 19:12:31,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 19:12:31,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 19:12:31,676 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 19:12:31,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 19:12:31,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 19:12:31,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 19:12:31,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 19:12:31,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 19:12:31,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 19:12:31,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 19:12:31,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 19:12:31,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 19:12:31,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 19:12:31,691 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 19:12:31,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 19:12:31,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 19:12:31,693 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 19:12:31,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 19:12:31,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 19:12:31,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 19:12:31,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 19:12:31,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 19:12:31,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 19:12:31,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 19:12:31,698 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 19:12:31,735 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 19:12:31,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 19:12:31,736 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 19:12:31,736 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 19:12:31,736 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 19:12:31,737 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 19:12:31,737 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 19:12:31,737 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 19:12:31,737 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 19:12:31,738 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 19:12:31,738 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 19:12:31,738 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 19:12:31,739 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 19:12:31,739 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 19:12:31,739 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 19:12:31,739 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 19:12:31,741 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 19:12:31,741 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 19:12:31,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 19:12:31,743 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 19:12:31,743 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 19:12:31,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 19:12:31,743 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 19:12:31,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 19:12:31,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 19:12:31,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 19:12:31,744 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 19:12:31,744 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 19:12:31,745 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 19:12:31,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 19:12:31,745 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 19:12:31,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 19:12:31,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 19:12:31,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 19:12:31,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:12:31,746 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 19:12:31,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 19:12:31,746 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 19:12:31,747 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 19:12:31,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 19:12:31,747 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 19:12:31,747 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 19:12:31,747 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 19:12:31,748 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/UTaipan-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa97ad6141e9aa8818b694f4968e766701fe7261f516cd86f7a15e5cf1a3d14d [2022-04-18 19:12:31,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 19:12:31,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 19:12:31,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 19:12:31,984 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 19:12:31,984 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 19:12:31,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas.i [2022-04-18 19:12:32,047 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7fa019355/644a5692e49c4fd3b3c397689fc28df4/FLAG37eab4540 [2022-04-18 19:12:32,490 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 19:12:32,490 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas.i [2022-04-18 19:12:32,508 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7fa019355/644a5692e49c4fd3b3c397689fc28df4/FLAG37eab4540 [2022-04-18 19:12:32,518 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7fa019355/644a5692e49c4fd3b3c397689fc28df4 [2022-04-18 19:12:32,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 19:12:32,521 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 19:12:32,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 19:12:32,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 19:12:32,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 19:12:32,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:12:32" (1/1) ... [2022-04-18 19:12:32,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d218475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:12:32, skipping insertion in model container [2022-04-18 19:12:32,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:12:32" (1/1) ... [2022-04-18 19:12:32,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 19:12:32,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 19:12:32,846 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas.i[31152,31165] [2022-04-18 19:12:32,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:12:32,869 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 19:12:32,940 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas.i[31152,31165] [2022-04-18 19:12:32,954 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:12:32,994 INFO L208 MainTranslator]: Completed translation [2022-04-18 19:12:32,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:12:32 WrapperNode [2022-04-18 19:12:32,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 19:12:32,996 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 19:12:32,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 19:12:32,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 19:12:33,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:12:32" (1/1) ... [2022-04-18 19:12:33,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:12:32" (1/1) ... [2022-04-18 19:12:33,081 INFO L137 Inliner]: procedures = 177, calls = 47, calls flagged for inlining = 16, calls inlined = 19, statements flattened = 319 [2022-04-18 19:12:33,082 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 19:12:33,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 19:12:33,083 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 19:12:33,083 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 19:12:33,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:12:32" (1/1) ... [2022-04-18 19:12:33,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:12:32" (1/1) ... [2022-04-18 19:12:33,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:12:32" (1/1) ... [2022-04-18 19:12:33,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:12:32" (1/1) ... [2022-04-18 19:12:33,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:12:32" (1/1) ... [2022-04-18 19:12:33,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:12:32" (1/1) ... [2022-04-18 19:12:33,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:12:32" (1/1) ... [2022-04-18 19:12:33,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 19:12:33,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 19:12:33,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 19:12:33,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 19:12:33,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:12:32" (1/1) ... [2022-04-18 19:12:33,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:12:33,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 19:12:33,205 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 19:12:33,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 19:12:33,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 19:12:33,246 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-04-18 19:12:33,246 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-04-18 19:12:33,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 19:12:33,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 19:12:33,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 19:12:33,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 19:12:33,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 19:12:33,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 19:12:33,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 19:12:33,249 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 19:12:33,408 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 19:12:33,410 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 19:12:33,995 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 19:12:34,238 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 19:12:34,239 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-04-18 19:12:34,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:12:34 BoogieIcfgContainer [2022-04-18 19:12:34,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 19:12:34,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 19:12:34,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 19:12:34,247 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 19:12:34,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:12:32" (1/3) ... [2022-04-18 19:12:34,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab3f8c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:12:34, skipping insertion in model container [2022-04-18 19:12:34,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:12:32" (2/3) ... [2022-04-18 19:12:34,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab3f8c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:12:34, skipping insertion in model container [2022-04-18 19:12:34,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:12:34" (3/3) ... [2022-04-18 19:12:34,250 INFO L111 eAbstractionObserver]: Analyzing ICFG 26_stack_cas.i [2022-04-18 19:12:34,256 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 19:12:34,256 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 19:12:34,256 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-04-18 19:12:34,256 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 19:12:34,369 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:12:34,419 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:12:34,426 INFO L340 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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 [2022-04-18 19:12:34,427 INFO L341 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2022-04-18 19:12:34,442 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:12:34,452 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 184 places, 191 transitions, 387 flow [2022-04-18 19:12:34,455 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 184 places, 191 transitions, 387 flow [2022-04-18 19:12:34,456 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 184 places, 191 transitions, 387 flow [2022-04-18 19:12:34,537 INFO L129 PetriNetUnfolder]: 11/202 cut-off events. [2022-04-18 19:12:34,537 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 19:12:34,544 INFO L84 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 202 events. 11/202 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 262 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 164. Up to 4 conditions per place. [2022-04-18 19:12:34,549 INFO L116 LiptonReduction]: Number of co-enabled transitions 4228 [2022-04-18 19:13:13,432 INFO L131 LiptonReduction]: Checked pairs total: 4908 [2022-04-18 19:13:13,432 INFO L133 LiptonReduction]: Total number of compositions: 242 [2022-04-18 19:13:13,448 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 47 places, 51 transitions, 107 flow [2022-04-18 19:13:13,470 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 197 states, 144 states have (on average 2.6458333333333335) internal successors, (381), 196 states have internal predecessors, (381), 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) [2022-04-18 19:13:13,473 INFO L276 IsEmpty]: Start isEmpty. Operand has 197 states, 144 states have (on average 2.6458333333333335) internal successors, (381), 196 states have internal predecessors, (381), 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) [2022-04-18 19:13:13,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-04-18 19:13:13,478 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:13:13,479 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2022-04-18 19:13:13,480 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err4ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-04-18 19:13:13,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:13:13,484 INFO L85 PathProgramCache]: Analyzing trace with hash 41135413, now seen corresponding path program 1 times [2022-04-18 19:13:13,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:13:13,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184881309] [2022-04-18 19:13:13,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:13:13,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:13:13,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:13:13,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:13:13,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:13:13,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184881309] [2022-04-18 19:13:13,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184881309] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:13:13,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:13:13,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 19:13:13,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965260424] [2022-04-18 19:13:13,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:13:13,657 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:13:13,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:13:13,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:13:13,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:13:13,678 INFO L87 Difference]: Start difference. First operand has 197 states, 144 states have (on average 2.6458333333333335) internal successors, (381), 196 states have internal predecessors, (381), 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) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-04-18 19:13:13,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:13:13,792 INFO L93 Difference]: Finished difference Result 55 states and 110 transitions. [2022-04-18 19:13:13,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:13:13,797 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2022-04-18 19:13:13,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:13:13,803 INFO L225 Difference]: With dead ends: 55 [2022-04-18 19:13:13,804 INFO L226 Difference]: Without dead ends: 55 [2022-04-18 19:13:13,805 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:13:13,808 INFO L913 BasicCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:13:13,810 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 19:13:13,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-04-18 19:13:13,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2022-04-18 19:13:13,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 2.037037037037037) internal successors, (110), 54 states have internal predecessors, (110), 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) [2022-04-18 19:13:13,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 110 transitions. [2022-04-18 19:13:13,847 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 110 transitions. Word has length 4 [2022-04-18 19:13:13,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:13:13,848 INFO L478 AbstractCegarLoop]: Abstraction has 55 states and 110 transitions. [2022-04-18 19:13:13,848 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-04-18 19:13:13,848 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 110 transitions. [2022-04-18 19:13:13,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 19:13:13,849 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:13:13,849 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-04-18 19:13:13,850 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 19:13:13,854 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-04-18 19:13:13,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:13:13,857 INFO L85 PathProgramCache]: Analyzing trace with hash 876329894, now seen corresponding path program 1 times [2022-04-18 19:13:13,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:13:13,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18551614] [2022-04-18 19:13:13,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:13:13,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:13:13,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:13:13,895 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 19:13:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:13:13,926 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-04-18 19:13:13,926 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 19:13:13,928 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 53 remaining) [2022-04-18 19:13:13,929 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2022-04-18 19:13:13,929 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2022-04-18 19:13:13,930 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2022-04-18 19:13:13,930 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2022-04-18 19:13:13,930 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2022-04-18 19:13:13,930 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (46 of 53 remaining) [2022-04-18 19:13:13,931 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2022-04-18 19:13:13,931 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2022-04-18 19:13:13,931 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2022-04-18 19:13:13,931 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2022-04-18 19:13:13,932 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2022-04-18 19:13:13,932 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2022-04-18 19:13:13,932 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2022-04-18 19:13:13,932 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2022-04-18 19:13:13,932 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2022-04-18 19:13:13,933 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2022-04-18 19:13:13,933 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2022-04-18 19:13:13,933 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2022-04-18 19:13:13,933 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2022-04-18 19:13:13,934 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2022-04-18 19:13:13,934 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2022-04-18 19:13:13,934 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2022-04-18 19:13:13,934 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2022-04-18 19:13:13,934 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2022-04-18 19:13:13,935 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2022-04-18 19:13:13,935 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2022-04-18 19:13:13,935 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2022-04-18 19:13:13,935 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2022-04-18 19:13:13,936 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2022-04-18 19:13:13,936 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2022-04-18 19:13:13,936 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2022-04-18 19:13:13,936 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 53 remaining) [2022-04-18 19:13:13,936 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 53 remaining) [2022-04-18 19:13:13,937 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 53 remaining) [2022-04-18 19:13:13,937 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2022-04-18 19:13:13,937 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2022-04-18 19:13:13,937 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2022-04-18 19:13:13,938 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2022-04-18 19:13:13,938 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2022-04-18 19:13:13,938 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2022-04-18 19:13:13,938 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2022-04-18 19:13:13,938 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2022-04-18 19:13:13,939 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2022-04-18 19:13:13,939 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2022-04-18 19:13:13,939 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2022-04-18 19:13:13,939 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2022-04-18 19:13:13,939 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2022-04-18 19:13:13,940 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2022-04-18 19:13:13,940 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2022-04-18 19:13:13,940 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2022-04-18 19:13:13,940 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2022-04-18 19:13:13,941 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2022-04-18 19:13:13,941 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 19:13:13,943 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-18 19:13:13,944 WARN L232 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 19:13:13,944 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-04-18 19:13:14,010 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:13:14,012 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:13:14,013 INFO L340 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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 [2022-04-18 19:13:14,013 INFO L341 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2022-04-18 19:13:14,016 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:13:14,016 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 329 places, 343 transitions, 698 flow [2022-04-18 19:13:14,016 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 329 places, 343 transitions, 698 flow [2022-04-18 19:13:14,016 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 329 places, 343 transitions, 698 flow [2022-04-18 19:13:14,109 INFO L129 PetriNetUnfolder]: 21/367 cut-off events. [2022-04-18 19:13:14,109 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 19:13:14,114 INFO L84 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 367 events. 21/367 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1004 event pairs, 0 based on Foata normal form. 0/291 useless extension candidates. Maximal degree in co-relation 315. Up to 6 conditions per place. [2022-04-18 19:13:14,140 INFO L116 LiptonReduction]: Number of co-enabled transitions 54360 [2022-04-18 19:15:29,735 INFO L131 LiptonReduction]: Checked pairs total: 395728 [2022-04-18 19:15:29,736 INFO L133 LiptonReduction]: Total number of compositions: 378 [2022-04-18 19:15:29,737 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 168 places, 177 transitions, 366 flow [2022-04-18 19:15:30,702 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 37363 states, 35880 states have (on average 3.099526198439242) internal successors, (111211), 37362 states have internal predecessors, (111211), 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) [2022-04-18 19:15:30,765 INFO L276 IsEmpty]: Start isEmpty. Operand has 37363 states, 35880 states have (on average 3.099526198439242) internal successors, (111211), 37362 states have internal predecessors, (111211), 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) [2022-04-18 19:15:30,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-04-18 19:15:30,766 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:15:30,766 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2022-04-18 19:15:30,766 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2022-04-18 19:15:30,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:15:30,767 INFO L85 PathProgramCache]: Analyzing trace with hash 65867120, now seen corresponding path program 1 times [2022-04-18 19:15:30,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:15:30,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243108135] [2022-04-18 19:15:30,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:15:30,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:15:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:15:30,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:15:30,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:15:30,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243108135] [2022-04-18 19:15:30,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243108135] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:15:30,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:15:30,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 19:15:30,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935058437] [2022-04-18 19:15:30,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:15:30,812 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:15:30,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:15:30,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:15:30,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:15:30,866 INFO L87 Difference]: Start difference. First operand has 37363 states, 35880 states have (on average 3.099526198439242) internal successors, (111211), 37362 states have internal predecessors, (111211), 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) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-04-18 19:15:31,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:15:31,721 INFO L93 Difference]: Finished difference Result 20415 states and 59511 transitions. [2022-04-18 19:15:31,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:15:31,722 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2022-04-18 19:15:31,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:15:31,878 INFO L225 Difference]: With dead ends: 20415 [2022-04-18 19:15:31,879 INFO L226 Difference]: Without dead ends: 20415 [2022-04-18 19:15:31,879 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:15:31,882 INFO L913 BasicCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:15:31,883 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-18 19:15:31,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20415 states. [2022-04-18 19:15:32,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20415 to 20415. [2022-04-18 19:15:32,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20415 states, 20271 states have (on average 2.935770312268758) internal successors, (59511), 20414 states have internal predecessors, (59511), 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) [2022-04-18 19:15:32,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20415 states to 20415 states and 59511 transitions. [2022-04-18 19:15:32,740 INFO L78 Accepts]: Start accepts. Automaton has 20415 states and 59511 transitions. Word has length 4 [2022-04-18 19:15:32,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:15:32,741 INFO L478 AbstractCegarLoop]: Abstraction has 20415 states and 59511 transitions. [2022-04-18 19:15:32,741 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-04-18 19:15:32,741 INFO L276 IsEmpty]: Start isEmpty. Operand 20415 states and 59511 transitions. [2022-04-18 19:15:32,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 19:15:32,742 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:15:32,742 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-04-18 19:15:32,742 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 19:15:32,742 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2022-04-18 19:15:32,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:15:32,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1126153166, now seen corresponding path program 1 times [2022-04-18 19:15:32,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:15:32,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356850881] [2022-04-18 19:15:32,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:15:32,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:15:32,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:15:32,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:15:32,828 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:15:32,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356850881] [2022-04-18 19:15:32,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356850881] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:15:32,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:15:32,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:15:32,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753503899] [2022-04-18 19:15:32,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:15:32,829 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:15:32,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:15:32,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:15:32,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:15:32,830 INFO L87 Difference]: Start difference. First operand 20415 states and 59511 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-04-18 19:15:34,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:15:34,413 INFO L93 Difference]: Finished difference Result 38970 states and 113688 transitions. [2022-04-18 19:15:34,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:15:34,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2022-04-18 19:15:34,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:15:34,624 INFO L225 Difference]: With dead ends: 38970 [2022-04-18 19:15:34,625 INFO L226 Difference]: Without dead ends: 38970 [2022-04-18 19:15:34,625 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:15:34,626 INFO L913 BasicCegarLoop]: 85 mSDtfsCounter, 134 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:15:34,626 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 156 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-18 19:15:34,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38970 states. [2022-04-18 19:15:35,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38970 to 20761. [2022-04-18 19:15:35,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20761 states, 20620 states have (on average 2.957953443258972) internal successors, (60993), 20760 states have internal predecessors, (60993), 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) [2022-04-18 19:15:35,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20761 states to 20761 states and 60993 transitions. [2022-04-18 19:15:35,645 INFO L78 Accepts]: Start accepts. Automaton has 20761 states and 60993 transitions. Word has length 6 [2022-04-18 19:15:35,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:15:35,645 INFO L478 AbstractCegarLoop]: Abstraction has 20761 states and 60993 transitions. [2022-04-18 19:15:35,645 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-04-18 19:15:35,646 INFO L276 IsEmpty]: Start isEmpty. Operand 20761 states and 60993 transitions. [2022-04-18 19:15:35,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-18 19:15:35,647 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:15:35,647 INFO L499 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-04-18 19:15:35,647 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 19:15:35,647 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2022-04-18 19:15:35,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:15:35,648 INFO L85 PathProgramCache]: Analyzing trace with hash -735451668, now seen corresponding path program 1 times [2022-04-18 19:15:35,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:15:35,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996389516] [2022-04-18 19:15:35,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:15:35,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:15:35,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:15:35,680 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 19:15:35,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:15:35,704 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-04-18 19:15:35,704 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 19:15:35,705 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (78 of 79 remaining) [2022-04-18 19:15:35,705 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (77 of 79 remaining) [2022-04-18 19:15:35,705 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (76 of 79 remaining) [2022-04-18 19:15:35,705 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (75 of 79 remaining) [2022-04-18 19:15:35,706 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (74 of 79 remaining) [2022-04-18 19:15:35,706 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (73 of 79 remaining) [2022-04-18 19:15:35,706 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (72 of 79 remaining) [2022-04-18 19:15:35,706 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (71 of 79 remaining) [2022-04-18 19:15:35,706 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (70 of 79 remaining) [2022-04-18 19:15:35,706 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (69 of 79 remaining) [2022-04-18 19:15:35,707 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (68 of 79 remaining) [2022-04-18 19:15:35,707 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (67 of 79 remaining) [2022-04-18 19:15:35,707 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (66 of 79 remaining) [2022-04-18 19:15:35,707 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (65 of 79 remaining) [2022-04-18 19:15:35,707 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (64 of 79 remaining) [2022-04-18 19:15:35,708 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (63 of 79 remaining) [2022-04-18 19:15:35,708 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (62 of 79 remaining) [2022-04-18 19:15:35,708 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (61 of 79 remaining) [2022-04-18 19:15:35,708 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (60 of 79 remaining) [2022-04-18 19:15:35,708 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (59 of 79 remaining) [2022-04-18 19:15:35,708 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (58 of 79 remaining) [2022-04-18 19:15:35,709 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (57 of 79 remaining) [2022-04-18 19:15:35,709 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (56 of 79 remaining) [2022-04-18 19:15:35,709 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (55 of 79 remaining) [2022-04-18 19:15:35,709 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (54 of 79 remaining) [2022-04-18 19:15:35,709 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (53 of 79 remaining) [2022-04-18 19:15:35,710 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (52 of 79 remaining) [2022-04-18 19:15:35,710 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 79 remaining) [2022-04-18 19:15:35,710 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (50 of 79 remaining) [2022-04-18 19:15:35,710 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (49 of 79 remaining) [2022-04-18 19:15:35,710 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (48 of 79 remaining) [2022-04-18 19:15:35,710 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 79 remaining) [2022-04-18 19:15:35,711 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (46 of 79 remaining) [2022-04-18 19:15:35,711 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 79 remaining) [2022-04-18 19:15:35,711 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 79 remaining) [2022-04-18 19:15:35,711 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (43 of 79 remaining) [2022-04-18 19:15:35,711 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (42 of 79 remaining) [2022-04-18 19:15:35,712 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 79 remaining) [2022-04-18 19:15:35,712 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 79 remaining) [2022-04-18 19:15:35,712 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 79 remaining) [2022-04-18 19:15:35,712 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 79 remaining) [2022-04-18 19:15:35,712 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (37 of 79 remaining) [2022-04-18 19:15:35,712 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 79 remaining) [2022-04-18 19:15:35,713 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 79 remaining) [2022-04-18 19:15:35,713 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (34 of 79 remaining) [2022-04-18 19:15:35,713 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (33 of 79 remaining) [2022-04-18 19:15:35,713 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (32 of 79 remaining) [2022-04-18 19:15:35,713 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (31 of 79 remaining) [2022-04-18 19:15:35,713 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (30 of 79 remaining) [2022-04-18 19:15:35,714 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (29 of 79 remaining) [2022-04-18 19:15:35,714 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (28 of 79 remaining) [2022-04-18 19:15:35,714 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (27 of 79 remaining) [2022-04-18 19:15:35,714 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (26 of 79 remaining) [2022-04-18 19:15:35,714 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 79 remaining) [2022-04-18 19:15:35,715 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 79 remaining) [2022-04-18 19:15:35,715 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (23 of 79 remaining) [2022-04-18 19:15:35,715 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 79 remaining) [2022-04-18 19:15:35,715 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 79 remaining) [2022-04-18 19:15:35,715 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 79 remaining) [2022-04-18 19:15:35,716 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 79 remaining) [2022-04-18 19:15:35,716 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 79 remaining) [2022-04-18 19:15:35,716 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 79 remaining) [2022-04-18 19:15:35,716 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 79 remaining) [2022-04-18 19:15:35,716 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 79 remaining) [2022-04-18 19:15:35,716 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 79 remaining) [2022-04-18 19:15:35,717 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (13 of 79 remaining) [2022-04-18 19:15:35,717 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 79 remaining) [2022-04-18 19:15:35,717 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (11 of 79 remaining) [2022-04-18 19:15:35,717 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (10 of 79 remaining) [2022-04-18 19:15:35,717 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (9 of 79 remaining) [2022-04-18 19:15:35,717 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (8 of 79 remaining) [2022-04-18 19:15:35,718 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (7 of 79 remaining) [2022-04-18 19:15:35,718 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (6 of 79 remaining) [2022-04-18 19:15:35,718 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (5 of 79 remaining) [2022-04-18 19:15:35,718 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (4 of 79 remaining) [2022-04-18 19:15:35,718 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (3 of 79 remaining) [2022-04-18 19:15:35,719 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (2 of 79 remaining) [2022-04-18 19:15:35,719 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (1 of 79 remaining) [2022-04-18 19:15:35,719 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (0 of 79 remaining) [2022-04-18 19:15:35,719 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 19:15:35,719 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-04-18 19:15:35,720 WARN L232 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 19:15:35,720 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-04-18 19:15:35,787 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:15:35,788 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:15:35,789 INFO L340 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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 [2022-04-18 19:15:35,789 INFO L341 AbstractCegarLoop]: Starting to check reachability of 105 error locations. [2022-04-18 19:15:35,793 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:15:35,793 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 474 places, 495 transitions, 1011 flow [2022-04-18 19:15:35,793 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 474 places, 495 transitions, 1011 flow [2022-04-18 19:15:35,794 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 474 places, 495 transitions, 1011 flow [2022-04-18 19:15:35,908 INFO L129 PetriNetUnfolder]: 31/532 cut-off events. [2022-04-18 19:15:35,908 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-04-18 19:15:35,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 548 conditions, 532 events. 31/532 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1971 event pairs, 0 based on Foata normal form. 0/419 useless extension candidates. Maximal degree in co-relation 466. Up to 8 conditions per place. [2022-04-18 19:15:35,977 INFO L116 LiptonReduction]: Number of co-enabled transitions 150396 [2022-04-18 19:15:53,181 WARN L232 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 111 DAG size of output: 98 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:19:26,814 INFO L131 LiptonReduction]: Checked pairs total: 1157825 [2022-04-18 19:19:26,814 INFO L133 LiptonReduction]: Total number of compositions: 545 [2022-04-18 19:19:26,816 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 249 places, 263 transitions, 547 flow