./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_51-mutexptr_racefree.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/goblint-regression/28-race_reach_51-mutexptr_racefree.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 f222d5749b9bb10b4d4c09b2c40e45ee19dec77732a8593ce917652e8ca8a43e --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 18:43:14,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 18:43:14,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 18:43:14,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 18:43:14,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 18:43:14,695 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 18:43:14,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 18:43:14,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 18:43:14,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 18:43:14,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 18:43:14,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 18:43:14,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 18:43:14,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 18:43:14,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 18:43:14,708 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 18:43:14,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 18:43:14,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 18:43:14,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 18:43:14,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 18:43:14,715 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 18:43:14,716 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 18:43:14,718 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 18:43:14,719 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 18:43:14,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 18:43:14,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 18:43:14,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 18:43:14,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 18:43:14,724 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 18:43:14,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 18:43:14,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 18:43:14,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 18:43:14,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 18:43:14,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 18:43:14,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 18:43:14,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 18:43:14,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 18:43:14,728 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 18:43:14,729 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 18:43:14,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 18:43:14,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 18:43:14,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 18:43:14,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 18:43:14,731 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 18:43:14,767 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 18:43:14,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 18:43:14,768 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 18:43:14,768 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 18:43:14,768 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 18:43:14,769 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 18:43:14,769 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 18:43:14,769 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 18:43:14,769 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 18:43:14,773 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 18:43:14,774 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 18:43:14,774 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 18:43:14,774 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 18:43:14,774 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 18:43:14,774 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 18:43:14,775 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 18:43:14,775 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 18:43:14,775 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 18:43:14,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 18:43:14,776 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 18:43:14,777 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 18:43:14,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 18:43:14,777 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 18:43:14,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 18:43:14,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 18:43:14,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 18:43:14,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 18:43:14,778 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 18:43:14,778 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 18:43:14,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 18:43:14,778 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 18:43:14,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 18:43:14,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 18:43:14,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 18:43:14,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:43:14,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 18:43:14,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 18:43:14,779 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 18:43:14,779 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 18:43:14,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 18:43:14,783 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 18:43:14,783 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 18:43:14,783 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 18:43:14,783 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f222d5749b9bb10b4d4c09b2c40e45ee19dec77732a8593ce917652e8ca8a43e [2022-04-18 18:43:15,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 18:43:15,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 18:43:15,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 18:43:15,042 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 18:43:15,042 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 18:43:15,043 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_51-mutexptr_racefree.i [2022-04-18 18:43:15,096 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/274a7d3f4/6bcac098f5a24091af5ebd3b14a5dee9/FLAG8e5a86508 [2022-04-18 18:43:15,509 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 18:43:15,510 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_51-mutexptr_racefree.i [2022-04-18 18:43:15,525 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/274a7d3f4/6bcac098f5a24091af5ebd3b14a5dee9/FLAG8e5a86508 [2022-04-18 18:43:15,903 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/274a7d3f4/6bcac098f5a24091af5ebd3b14a5dee9 [2022-04-18 18:43:15,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 18:43:15,913 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 18:43:15,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 18:43:15,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 18:43:15,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 18:43:15,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:43:15" (1/1) ... [2022-04-18 18:43:15,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@633cc377 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:15, skipping insertion in model container [2022-04-18 18:43:15,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:43:15" (1/1) ... [2022-04-18 18:43:15,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 18:43:16,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 18:43:16,333 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_51-mutexptr_racefree.i[30176,30189] [2022-04-18 18:43:16,353 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:43:16,363 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 18:43:16,398 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_51-mutexptr_racefree.i[30176,30189] [2022-04-18 18:43:16,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:43:16,490 INFO L208 MainTranslator]: Completed translation [2022-04-18 18:43:16,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:16 WrapperNode [2022-04-18 18:43:16,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 18:43:16,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 18:43:16,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 18:43:16,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 18:43:16,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:16" (1/1) ... [2022-04-18 18:43:16,521 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:16" (1/1) ... [2022-04-18 18:43:16,558 INFO L137 Inliner]: procedures = 170, calls = 37, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 106 [2022-04-18 18:43:16,563 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 18:43:16,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 18:43:16,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 18:43:16,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 18:43:16,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:16" (1/1) ... [2022-04-18 18:43:16,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:16" (1/1) ... [2022-04-18 18:43:16,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:16" (1/1) ... [2022-04-18 18:43:16,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:16" (1/1) ... [2022-04-18 18:43:16,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:16" (1/1) ... [2022-04-18 18:43:16,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:16" (1/1) ... [2022-04-18 18:43:16,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:16" (1/1) ... [2022-04-18 18:43:16,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 18:43:16,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 18:43:16,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 18:43:16,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 18:43:16,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:16" (1/1) ... [2022-04-18 18:43:16,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:43:16,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:43:16,666 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 18:43:16,679 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 18:43:16,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 18:43:16,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 18:43:16,722 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 18:43:16,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 18:43:16,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 18:43:16,723 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-04-18 18:43:16,723 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-04-18 18:43:16,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 18:43:16,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 18:43:16,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 18:43:16,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 18:43:16,724 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 18:43:16,844 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 18:43:16,845 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 18:43:17,048 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 18:43:17,054 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 18:43:17,054 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2022-04-18 18:43:17,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:43:17 BoogieIcfgContainer [2022-04-18 18:43:17,056 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 18:43:17,057 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 18:43:17,057 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 18:43:17,060 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 18:43:17,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:43:15" (1/3) ... [2022-04-18 18:43:17,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30223901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:43:17, skipping insertion in model container [2022-04-18 18:43:17,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:16" (2/3) ... [2022-04-18 18:43:17,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30223901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:43:17, skipping insertion in model container [2022-04-18 18:43:17,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:43:17" (3/3) ... [2022-04-18 18:43:17,062 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_51-mutexptr_racefree.i [2022-04-18 18:43:17,065 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 18:43:17,065 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 18:43:17,065 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-04-18 18:43:17,065 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 18:43:17,106 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-04-18 18:43:17,142 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 18:43:17,147 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 18:43:17,147 INFO L341 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-04-18 18:43:17,156 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 18:43:17,164 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 176 places, 185 transitions, 378 flow [2022-04-18 18:43:17,166 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 176 places, 185 transitions, 378 flow [2022-04-18 18:43:17,167 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 176 places, 185 transitions, 378 flow [2022-04-18 18:43:17,225 INFO L129 PetriNetUnfolder]: 17/241 cut-off events. [2022-04-18 18:43:17,225 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-04-18 18:43:17,230 INFO L84 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 241 events. 17/241 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 708 event pairs, 0 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 130. Up to 4 conditions per place. [2022-04-18 18:43:17,237 INFO L116 LiptonReduction]: Number of co-enabled transitions 8556 [2022-04-18 18:43:20,999 INFO L131 LiptonReduction]: Checked pairs total: 59168 [2022-04-18 18:43:20,999 INFO L133 LiptonReduction]: Total number of compositions: 163 [2022-04-18 18:43:21,005 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 70 places, 76 transitions, 160 flow [2022-04-18 18:43:21,040 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1053 states, 999 states have (on average 2.2572572572572573) internal successors, (2255), 1052 states have internal predecessors, (2255), 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 18:43:21,045 INFO L276 IsEmpty]: Start isEmpty. Operand has 1053 states, 999 states have (on average 2.2572572572572573) internal successors, (2255), 1052 states have internal predecessors, (2255), 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 18:43:21,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-04-18 18:43:21,049 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:43:21,049 INFO L499 BasicCegarLoop]: trace histogram [1] [2022-04-18 18:43:21,050 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-04-18 18:43:21,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:43:21,053 INFO L85 PathProgramCache]: Analyzing trace with hash 667, now seen corresponding path program 1 times [2022-04-18 18:43:21,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:43:21,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725598197] [2022-04-18 18:43:21,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:43:21,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:43:21,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:43:21,135 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 18:43:21,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:43:21,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725598197] [2022-04-18 18:43:21,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725598197] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:43:21,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:43:21,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-04-18 18:43:21,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898623852] [2022-04-18 18:43:21,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:43:21,141 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 18:43:21,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:43:21,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 18:43:21,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 18:43:21,158 INFO L87 Difference]: Start difference. First operand has 1053 states, 999 states have (on average 2.2572572572572573) internal successors, (2255), 1052 states have internal predecessors, (2255), 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 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 18:43:21,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:43:21,217 INFO L93 Difference]: Finished difference Result 987 states and 1887 transitions. [2022-04-18 18:43:21,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 18:43:21,219 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-04-18 18:43:21,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:43:21,236 INFO L225 Difference]: With dead ends: 987 [2022-04-18 18:43:21,236 INFO L226 Difference]: Without dead ends: 985 [2022-04-18 18:43:21,237 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 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 18:43:21,239 INFO L913 BasicCegarLoop]: 37 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 18:43:21,239 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 18:43:21,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2022-04-18 18:43:21,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 985. [2022-04-18 18:43:21,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 948 states have (on average 1.9873417721518987) internal successors, (1884), 984 states have internal predecessors, (1884), 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 18:43:21,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1884 transitions. [2022-04-18 18:43:21,301 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1884 transitions. Word has length 1 [2022-04-18 18:43:21,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:43:21,302 INFO L478 AbstractCegarLoop]: Abstraction has 985 states and 1884 transitions. [2022-04-18 18:43:21,302 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 18:43:21,302 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1884 transitions. [2022-04-18 18:43:21,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 18:43:21,302 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:43:21,303 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-04-18 18:43:21,303 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 18:43:21,303 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-04-18 18:43:21,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:43:21,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1813514781, now seen corresponding path program 1 times [2022-04-18 18:43:21,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:43:21,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080005093] [2022-04-18 18:43:21,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:43:21,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:43:21,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 18:43:21,342 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 18:43:21,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 18:43:21,384 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-04-18 18:43:21,384 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 18:43:21,386 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2022-04-18 18:43:21,387 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2022-04-18 18:43:21,387 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2022-04-18 18:43:21,387 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2022-04-18 18:43:21,387 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2022-04-18 18:43:21,388 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2022-04-18 18:43:21,388 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2022-04-18 18:43:21,388 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2022-04-18 18:43:21,388 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2022-04-18 18:43:21,388 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2022-04-18 18:43:21,388 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2022-04-18 18:43:21,389 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2022-04-18 18:43:21,389 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2022-04-18 18:43:21,389 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2022-04-18 18:43:21,389 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2022-04-18 18:43:21,389 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2022-04-18 18:43:21,390 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2022-04-18 18:43:21,390 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2022-04-18 18:43:21,393 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 18:43:21,395 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-18 18:43:21,395 WARN L232 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 18:43:21,396 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-04-18 18:43:21,453 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 18:43:21,454 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 18:43:21,455 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 18:43:21,455 INFO L341 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-04-18 18:43:21,457 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 18:43:21,457 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 242 places, 256 transitions, 530 flow [2022-04-18 18:43:21,458 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 242 places, 256 transitions, 530 flow [2022-04-18 18:43:21,458 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 242 places, 256 transitions, 530 flow [2022-04-18 18:43:21,524 INFO L129 PetriNetUnfolder]: 31/399 cut-off events. [2022-04-18 18:43:21,524 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-04-18 18:43:21,528 INFO L84 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 399 events. 31/399 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1561 event pairs, 0 based on Foata normal form. 0/338 useless extension candidates. Maximal degree in co-relation 243. Up to 8 conditions per place. [2022-04-18 18:43:21,541 INFO L116 LiptonReduction]: Number of co-enabled transitions 28152 [2022-04-18 18:43:26,143 INFO L131 LiptonReduction]: Checked pairs total: 253656 [2022-04-18 18:43:26,143 INFO L133 LiptonReduction]: Total number of compositions: 208 [2022-04-18 18:43:26,144 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 116 places, 128 transitions, 274 flow [2022-04-18 18:43:27,099 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 46428 states, 46031 states have (on average 3.310660207251635) internal successors, (152393), 46427 states have internal predecessors, (152393), 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 18:43:27,166 INFO L276 IsEmpty]: Start isEmpty. Operand has 46428 states, 46031 states have (on average 3.310660207251635) internal successors, (152393), 46427 states have internal predecessors, (152393), 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 18:43:27,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-04-18 18:43:27,167 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:43:27,167 INFO L499 BasicCegarLoop]: trace histogram [1] [2022-04-18 18:43:27,167 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-04-18 18:43:27,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:43:27,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1185, now seen corresponding path program 1 times [2022-04-18 18:43:27,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:43:27,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583047335] [2022-04-18 18:43:27,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:43:27,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:43:27,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:43:27,196 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 18:43:27,196 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:43:27,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583047335] [2022-04-18 18:43:27,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583047335] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:43:27,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:43:27,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-04-18 18:43:27,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957939394] [2022-04-18 18:43:27,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:43:27,197 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 18:43:27,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:43:27,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 18:43:27,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 18:43:27,287 INFO L87 Difference]: Start difference. First operand has 46428 states, 46031 states have (on average 3.310660207251635) internal successors, (152393), 46427 states have internal predecessors, (152393), 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 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 18:43:28,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:43:28,029 INFO L93 Difference]: Finished difference Result 42614 states and 122644 transitions. [2022-04-18 18:43:28,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 18:43:28,030 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-04-18 18:43:28,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:43:28,285 INFO L225 Difference]: With dead ends: 42614 [2022-04-18 18:43:28,285 INFO L226 Difference]: Without dead ends: 42610 [2022-04-18 18:43:28,286 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 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 18:43:28,291 INFO L913 BasicCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:43:28,296 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:43:28,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42610 states. [2022-04-18 18:43:29,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42610 to 42610. [2022-04-18 18:43:29,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42610 states, 42359 states have (on average 2.8951580537784176) internal successors, (122636), 42609 states have internal predecessors, (122636), 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 18:43:29,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42610 states to 42610 states and 122636 transitions. [2022-04-18 18:43:29,768 INFO L78 Accepts]: Start accepts. Automaton has 42610 states and 122636 transitions. Word has length 1 [2022-04-18 18:43:29,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:43:29,768 INFO L478 AbstractCegarLoop]: Abstraction has 42610 states and 122636 transitions. [2022-04-18 18:43:29,768 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 18:43:29,769 INFO L276 IsEmpty]: Start isEmpty. Operand 42610 states and 122636 transitions. [2022-04-18 18:43:29,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 18:43:29,770 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:43:29,770 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:43:29,770 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 18:43:29,770 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-04-18 18:43:29,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:43:29,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1318157878, now seen corresponding path program 1 times [2022-04-18 18:43:29,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:43:29,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486835837] [2022-04-18 18:43:29,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:43:29,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:43:29,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:43:29,847 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 18:43:29,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:43:29,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486835837] [2022-04-18 18:43:29,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486835837] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:43:29,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:43:29,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:43:29,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552411572] [2022-04-18 18:43:29,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:43:29,848 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:43:29,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:43:29,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:43:29,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:43:29,849 INFO L87 Difference]: Start difference. First operand 42610 states and 122636 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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 18:43:30,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:43:30,398 INFO L93 Difference]: Finished difference Result 42597 states and 122622 transitions. [2022-04-18 18:43:30,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:43:30,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2022-04-18 18:43:30,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:43:30,558 INFO L225 Difference]: With dead ends: 42597 [2022-04-18 18:43:30,558 INFO L226 Difference]: Without dead ends: 42597 [2022-04-18 18:43:30,559 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 18:43:30,562 INFO L913 BasicCegarLoop]: 64 mSDtfsCounter, 41 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:43:30,562 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 128 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:43:30,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42597 states. [2022-04-18 18:43:31,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42597 to 42597. [2022-04-18 18:43:31,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42597 states, 42348 states have (on average 2.8955794842731652) internal successors, (122622), 42596 states have internal predecessors, (122622), 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 18:43:31,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42597 states to 42597 states and 122622 transitions. [2022-04-18 18:43:31,817 INFO L78 Accepts]: Start accepts. Automaton has 42597 states and 122622 transitions. Word has length 10 [2022-04-18 18:43:31,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:43:31,818 INFO L478 AbstractCegarLoop]: Abstraction has 42597 states and 122622 transitions. [2022-04-18 18:43:31,818 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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 18:43:31,818 INFO L276 IsEmpty]: Start isEmpty. Operand 42597 states and 122622 transitions. [2022-04-18 18:43:31,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-18 18:43:31,822 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:43:31,822 INFO L499 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-04-18 18:43:31,823 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 18:43:31,823 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-04-18 18:43:31,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:43:31,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1623839880, now seen corresponding path program 1 times [2022-04-18 18:43:31,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:43:31,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945873571] [2022-04-18 18:43:31,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:43:31,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:43:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 18:43:31,840 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 18:43:31,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 18:43:31,854 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-04-18 18:43:31,854 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 18:43:31,854 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2022-04-18 18:43:31,855 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2022-04-18 18:43:31,855 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2022-04-18 18:43:31,855 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2022-04-18 18:43:31,855 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2022-04-18 18:43:31,855 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2022-04-18 18:43:31,855 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2022-04-18 18:43:31,855 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2022-04-18 18:43:31,856 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2022-04-18 18:43:31,856 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2022-04-18 18:43:31,856 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2022-04-18 18:43:31,856 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2022-04-18 18:43:31,856 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2022-04-18 18:43:31,856 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2022-04-18 18:43:31,856 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2022-04-18 18:43:31,857 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2022-04-18 18:43:31,857 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2022-04-18 18:43:31,857 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2022-04-18 18:43:31,857 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2022-04-18 18:43:31,857 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2022-04-18 18:43:31,857 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2022-04-18 18:43:31,857 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2022-04-18 18:43:31,858 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2022-04-18 18:43:31,858 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2022-04-18 18:43:31,858 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 18:43:31,858 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-04-18 18:43:31,858 WARN L232 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 18:43:32,012 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-04-18 18:43:32,032 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-04-18 18:43:32,038 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 18:43:32,039 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 18:43:32,039 INFO L341 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2022-04-18 18:43:32,041 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 18:43:32,041 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 308 places, 327 transitions, 684 flow [2022-04-18 18:43:32,041 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 308 places, 327 transitions, 684 flow [2022-04-18 18:43:32,041 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 308 places, 327 transitions, 684 flow [2022-04-18 18:43:32,117 INFO L129 PetriNetUnfolder]: 50/602 cut-off events. [2022-04-18 18:43:32,117 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-04-18 18:43:32,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 630 conditions, 602 events. 50/602 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2673 event pairs, 1 based on Foata normal form. 0/509 useless extension candidates. Maximal degree in co-relation 407. Up to 16 conditions per place. [2022-04-18 18:43:32,157 INFO L116 LiptonReduction]: Number of co-enabled transitions 57132 [2022-04-18 18:43:37,857 INFO L131 LiptonReduction]: Checked pairs total: 556345 [2022-04-18 18:43:37,858 INFO L133 LiptonReduction]: Total number of compositions: 268 [2022-04-18 18:43:37,859 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 158 places, 175 transitions, 380 flow