./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/05_tas.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/05_tas.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 1ee4025da2c93fbd4be930880192a9e0c94d8979f3d9117e228b55f99542c3b0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 19:03:39,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 19:03:39,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 19:03:39,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 19:03:39,843 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 19:03:39,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 19:03:39,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 19:03:39,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 19:03:39,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 19:03:39,858 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 19:03:39,859 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 19:03:39,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 19:03:39,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 19:03:39,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 19:03:39,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 19:03:39,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 19:03:39,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 19:03:39,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 19:03:39,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 19:03:39,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 19:03:39,876 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 19:03:39,877 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 19:03:39,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 19:03:39,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 19:03:39,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 19:03:39,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 19:03:39,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 19:03:39,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 19:03:39,885 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 19:03:39,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 19:03:39,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 19:03:39,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 19:03:39,888 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 19:03:39,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 19:03:39,889 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 19:03:39,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 19:03:39,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 19:03:39,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 19:03:39,891 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 19:03:39,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 19:03:39,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 19:03:39,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 19:03:39,894 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 19:03:39,930 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 19:03:39,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 19:03:39,931 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 19:03:39,931 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 19:03:39,932 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 19:03:39,932 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 19:03:39,932 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 19:03:39,932 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 19:03:39,933 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 19:03:39,933 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 19:03:39,934 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 19:03:39,934 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 19:03:39,934 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 19:03:39,934 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 19:03:39,934 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 19:03:39,935 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 19:03:39,935 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 19:03:39,935 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 19:03:39,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 19:03:39,936 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 19:03:39,936 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 19:03:39,937 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 19:03:39,937 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 19:03:39,937 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 19:03:39,937 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 19:03:39,937 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 19:03:39,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 19:03:39,938 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 19:03:39,938 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 19:03:39,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 19:03:39,938 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 19:03:39,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 19:03:39,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 19:03:39,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 19:03:39,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:03:39,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 19:03:39,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 19:03:39,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 19:03:39,940 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 19:03:39,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 19:03:39,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 19:03:39,941 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 19:03:39,941 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 19:03:39,941 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ee4025da2c93fbd4be930880192a9e0c94d8979f3d9117e228b55f99542c3b0 [2022-04-18 19:03:40,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 19:03:40,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 19:03:40,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 19:03:40,214 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 19:03:40,214 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 19:03:40,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/05_tas.i [2022-04-18 19:03:40,274 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/118ad3b54/37b396599bfc4d02bb2250546433ea04/FLAG203f48d5d [2022-04-18 19:03:40,726 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 19:03:40,727 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/05_tas.i [2022-04-18 19:03:40,735 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/118ad3b54/37b396599bfc4d02bb2250546433ea04/FLAG203f48d5d [2022-04-18 19:03:41,063 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/118ad3b54/37b396599bfc4d02bb2250546433ea04 [2022-04-18 19:03:41,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 19:03:41,067 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 19:03:41,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 19:03:41,068 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 19:03:41,071 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 19:03:41,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:03:41" (1/1) ... [2022-04-18 19:03:41,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a60758e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:41, skipping insertion in model container [2022-04-18 19:03:41,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:03:41" (1/1) ... [2022-04-18 19:03:41,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 19:03:41,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 19:03:41,374 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/05_tas.i[30203,30216] [2022-04-18 19:03:41,378 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/05_tas.i[30300,30313] [2022-04-18 19:03:41,384 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/05_tas.i[30446,30459] [2022-04-18 19:03:41,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:03:41,396 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 19:03:41,454 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/05_tas.i[30203,30216] [2022-04-18 19:03:41,457 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/05_tas.i[30300,30313] [2022-04-18 19:03:41,458 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/05_tas.i[30446,30459] [2022-04-18 19:03:41,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:03:41,485 INFO L208 MainTranslator]: Completed translation [2022-04-18 19:03:41,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:41 WrapperNode [2022-04-18 19:03:41,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 19:03:41,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 19:03:41,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 19:03:41,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 19:03:41,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:41" (1/1) ... [2022-04-18 19:03:41,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:41" (1/1) ... [2022-04-18 19:03:41,537 INFO L137 Inliner]: procedures = 169, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 172 [2022-04-18 19:03:41,538 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 19:03:41,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 19:03:41,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 19:03:41,539 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 19:03:41,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:41" (1/1) ... [2022-04-18 19:03:41,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:41" (1/1) ... [2022-04-18 19:03:41,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:41" (1/1) ... [2022-04-18 19:03:41,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:41" (1/1) ... [2022-04-18 19:03:41,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:41" (1/1) ... [2022-04-18 19:03:41,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:41" (1/1) ... [2022-04-18 19:03:41,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:41" (1/1) ... [2022-04-18 19:03:41,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 19:03:41,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 19:03:41,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 19:03:41,582 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 19:03:41,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:41" (1/1) ... [2022-04-18 19:03:41,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:03:41,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 19:03:41,605 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 19:03:41,611 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 19:03:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 19:03:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-04-18 19:03:41,648 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-04-18 19:03:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 19:03:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 19:03:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 19:03:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 19:03:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 19:03:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 19:03:41,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 19:03:41,650 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 19:03:41,784 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 19:03:41,786 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 19:03:42,172 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 19:03:42,323 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 19:03:42,323 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-04-18 19:03:42,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:03:42 BoogieIcfgContainer [2022-04-18 19:03:42,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 19:03:42,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 19:03:42,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 19:03:42,330 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 19:03:42,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:03:41" (1/3) ... [2022-04-18 19:03:42,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34394236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:03:42, skipping insertion in model container [2022-04-18 19:03:42,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:41" (2/3) ... [2022-04-18 19:03:42,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34394236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:03:42, skipping insertion in model container [2022-04-18 19:03:42,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:03:42" (3/3) ... [2022-04-18 19:03:42,333 INFO L111 eAbstractionObserver]: Analyzing ICFG 05_tas.i [2022-04-18 19:03:42,337 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 19:03:42,337 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 19:03:42,337 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-04-18 19:03:42,337 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 19:03:42,416 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:03:42,451 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:03:42,457 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 19:03:42,457 INFO L341 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2022-04-18 19:03:42,467 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:03:42,477 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 145 transitions, 295 flow [2022-04-18 19:03:42,480 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 139 places, 145 transitions, 295 flow [2022-04-18 19:03:42,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 139 places, 145 transitions, 295 flow [2022-04-18 19:03:42,538 INFO L129 PetriNetUnfolder]: 10/156 cut-off events. [2022-04-18 19:03:42,538 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 19:03:42,544 INFO L84 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 156 events. 10/156 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 163 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 126. Up to 4 conditions per place. [2022-04-18 19:03:42,548 INFO L116 LiptonReduction]: Number of co-enabled transitions 3164 [2022-04-18 19:03:55,447 INFO L131 LiptonReduction]: Checked pairs total: 3104 [2022-04-18 19:03:55,447 INFO L133 LiptonReduction]: Total number of compositions: 179 [2022-04-18 19:03:55,452 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 33 transitions, 71 flow [2022-04-18 19:03:55,477 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 127 states, 94 states have (on average 2.5106382978723403) internal successors, (236), 126 states have internal predecessors, (236), 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 19:03:55,479 INFO L276 IsEmpty]: Start isEmpty. Operand has 127 states, 94 states have (on average 2.5106382978723403) internal successors, (236), 126 states have internal predecessors, (236), 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 19:03:55,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-04-18 19:03:55,483 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:55,483 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-04-18 19:03:55,484 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2022-04-18 19:03:55,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:55,487 INFO L85 PathProgramCache]: Analyzing trace with hash 728808589, now seen corresponding path program 1 times [2022-04-18 19:03:55,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:55,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780549391] [2022-04-18 19:03:55,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:55,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:55,659 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 19:03:55,659 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:55,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780549391] [2022-04-18 19:03:55,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780549391] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:55,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:55,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 19:03:55,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472027439] [2022-04-18 19:03:55,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:55,666 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:03:55,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:55,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:03:55,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:03:55,689 INFO L87 Difference]: Start difference. First operand has 127 states, 94 states have (on average 2.5106382978723403) internal successors, (236), 126 states have internal predecessors, (236), 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 5.0) internal successors, (5), 2 states have internal predecessors, (5), 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 19:03:55,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:55,746 INFO L93 Difference]: Finished difference Result 39 states and 70 transitions. [2022-04-18 19:03:55,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:03:55,748 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-04-18 19:03:55,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:55,753 INFO L225 Difference]: With dead ends: 39 [2022-04-18 19:03:55,754 INFO L226 Difference]: Without dead ends: 39 [2022-04-18 19:03:55,754 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 19:03:55,759 INFO L913 BasicCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:55,760 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 19:03:55,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-04-18 19:03:55,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-04-18 19:03:55,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.8421052631578947) internal successors, (70), 38 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:55,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 70 transitions. [2022-04-18 19:03:55,787 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 70 transitions. Word has length 5 [2022-04-18 19:03:55,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:55,788 INFO L478 AbstractCegarLoop]: Abstraction has 39 states and 70 transitions. [2022-04-18 19:03:55,788 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 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 19:03:55,788 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 70 transitions. [2022-04-18 19:03:55,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 19:03:55,789 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:55,789 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-04-18 19:03:55,790 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 19:03:55,793 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2022-04-18 19:03:55,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:55,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1118381292, now seen corresponding path program 1 times [2022-04-18 19:03:55,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:55,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001626670] [2022-04-18 19:03:55,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:55,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:55,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:03:55,832 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 19:03:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:03:55,878 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-04-18 19:03:55,879 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 19:03:55,882 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2022-04-18 19:03:55,883 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2022-04-18 19:03:55,884 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2022-04-18 19:03:55,884 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2022-04-18 19:03:55,888 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2022-04-18 19:03:55,888 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2022-04-18 19:03:55,888 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2022-04-18 19:03:55,888 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2022-04-18 19:03:55,888 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2022-04-18 19:03:55,888 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2022-04-18 19:03:55,889 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2022-04-18 19:03:55,889 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2022-04-18 19:03:55,889 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2022-04-18 19:03:55,889 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2022-04-18 19:03:55,889 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2022-04-18 19:03:55,889 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2022-04-18 19:03:55,890 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2022-04-18 19:03:55,890 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2022-04-18 19:03:55,890 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2022-04-18 19:03:55,890 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2022-04-18 19:03:55,890 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2022-04-18 19:03:55,890 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2022-04-18 19:03:55,890 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2022-04-18 19:03:55,891 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2022-04-18 19:03:55,891 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2022-04-18 19:03:55,891 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2022-04-18 19:03:55,891 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2022-04-18 19:03:55,891 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2022-04-18 19:03:55,891 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2022-04-18 19:03:55,891 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2022-04-18 19:03:55,892 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2022-04-18 19:03:55,892 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2022-04-18 19:03:55,892 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2022-04-18 19:03:55,892 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 19:03:55,902 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-18 19:03:55,904 WARN L232 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 19:03:55,904 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-04-18 19:03:55,974 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:03:55,977 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:03:55,978 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 19:03:55,978 INFO L341 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2022-04-18 19:03:55,983 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:03:55,983 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 247 places, 259 transitions, 530 flow [2022-04-18 19:03:55,984 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 247 places, 259 transitions, 530 flow [2022-04-18 19:03:55,984 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 247 places, 259 transitions, 530 flow [2022-04-18 19:03:56,072 INFO L129 PetriNetUnfolder]: 19/283 cut-off events. [2022-04-18 19:03:56,072 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 19:03:56,078 INFO L84 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 283 events. 19/283 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 628 event pairs, 0 based on Foata normal form. 0/229 useless extension candidates. Maximal degree in co-relation 239. Up to 6 conditions per place. [2022-04-18 19:03:56,099 INFO L116 LiptonReduction]: Number of co-enabled transitions 32092 [2022-04-18 19:09:39,942 INFO L131 LiptonReduction]: Checked pairs total: 302729 [2022-04-18 19:09:39,943 INFO L133 LiptonReduction]: Total number of compositions: 246 [2022-04-18 19:09:39,944 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 145 places, 152 transitions, 316 flow [2022-04-18 19:09:40,687 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 27270 states, 26677 states have (on average 3.037298047006785) internal successors, (81026), 27269 states have internal predecessors, (81026), 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 19:09:40,748 INFO L276 IsEmpty]: Start isEmpty. Operand has 27270 states, 26677 states have (on average 3.037298047006785) internal successors, (81026), 27269 states have internal predecessors, (81026), 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 19:09:40,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-04-18 19:09:40,751 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:40,751 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-04-18 19:09:40,751 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2022-04-18 19:09:40,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:40,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1273398984, now seen corresponding path program 1 times [2022-04-18 19:09:40,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:40,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106226198] [2022-04-18 19:09:40,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:40,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:40,874 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 19:09:40,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:40,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106226198] [2022-04-18 19:09:40,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106226198] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:40,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:40,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 19:09:40,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667525936] [2022-04-18 19:09:40,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:40,883 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:09:40,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:40,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:09:40,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:09:40,929 INFO L87 Difference]: Start difference. First operand has 27270 states, 26677 states have (on average 3.037298047006785) internal successors, (81026), 27269 states have internal predecessors, (81026), 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 5.0) internal successors, (5), 2 states have internal predecessors, (5), 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 19:09:41,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:41,378 INFO L93 Difference]: Finished difference Result 18243 states and 51487 transitions. [2022-04-18 19:09:41,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:09:41,379 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-04-18 19:09:41,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:41,505 INFO L225 Difference]: With dead ends: 18243 [2022-04-18 19:09:41,505 INFO L226 Difference]: Without dead ends: 18243 [2022-04-18 19:09:41,505 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 19:09:41,506 INFO L913 BasicCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:41,508 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 19:09:41,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18243 states. [2022-04-18 19:09:42,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18243 to 18243. [2022-04-18 19:09:42,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18243 states, 18143 states have (on average 2.837843796505539) internal successors, (51487), 18242 states have internal predecessors, (51487), 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 19:09:42,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18243 states to 18243 states and 51487 transitions. [2022-04-18 19:09:42,167 INFO L78 Accepts]: Start accepts. Automaton has 18243 states and 51487 transitions. Word has length 5 [2022-04-18 19:09:42,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:42,168 INFO L478 AbstractCegarLoop]: Abstraction has 18243 states and 51487 transitions. [2022-04-18 19:09:42,168 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 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 19:09:42,168 INFO L276 IsEmpty]: Start isEmpty. Operand 18243 states and 51487 transitions. [2022-04-18 19:09:42,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-18 19:09:42,169 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:42,169 INFO L499 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-04-18 19:09:42,169 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 19:09:42,170 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2022-04-18 19:09:42,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:42,170 INFO L85 PathProgramCache]: Analyzing trace with hash -951994451, now seen corresponding path program 1 times [2022-04-18 19:09:42,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:42,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32114060] [2022-04-18 19:09:42,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:42,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:42,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:09:42,198 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 19:09:42,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:09:42,224 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-04-18 19:09:42,225 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 19:09:42,225 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2022-04-18 19:09:42,225 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2022-04-18 19:09:42,225 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2022-04-18 19:09:42,225 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2022-04-18 19:09:42,226 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2022-04-18 19:09:42,226 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2022-04-18 19:09:42,226 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2022-04-18 19:09:42,226 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2022-04-18 19:09:42,226 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2022-04-18 19:09:42,227 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2022-04-18 19:09:42,227 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2022-04-18 19:09:42,227 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2022-04-18 19:09:42,227 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2022-04-18 19:09:42,227 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2022-04-18 19:09:42,227 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2022-04-18 19:09:42,228 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2022-04-18 19:09:42,228 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2022-04-18 19:09:42,228 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2022-04-18 19:09:42,228 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2022-04-18 19:09:42,228 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2022-04-18 19:09:42,228 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2022-04-18 19:09:42,229 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2022-04-18 19:09:42,229 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2022-04-18 19:09:42,229 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2022-04-18 19:09:42,229 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2022-04-18 19:09:42,229 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2022-04-18 19:09:42,230 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2022-04-18 19:09:42,230 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2022-04-18 19:09:42,230 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2022-04-18 19:09:42,230 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2022-04-18 19:09:42,230 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2022-04-18 19:09:42,230 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2022-04-18 19:09:42,231 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2022-04-18 19:09:42,231 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2022-04-18 19:09:42,231 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2022-04-18 19:09:42,231 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2022-04-18 19:09:42,231 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2022-04-18 19:09:42,231 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2022-04-18 19:09:42,232 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2022-04-18 19:09:42,232 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2022-04-18 19:09:42,232 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2022-04-18 19:09:42,232 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2022-04-18 19:09:42,232 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2022-04-18 19:09:42,232 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2022-04-18 19:09:42,233 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2022-04-18 19:09:42,233 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2022-04-18 19:09:42,233 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2022-04-18 19:09:42,233 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2022-04-18 19:09:42,233 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2022-04-18 19:09:42,234 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 19:09:42,234 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-18 19:09:42,234 WARN L232 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 19:09:42,234 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-04-18 19:09:42,274 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:09:42,276 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:09:42,277 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 19:09:42,278 INFO L341 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2022-04-18 19:09:42,280 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:09:42,280 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 355 places, 373 transitions, 767 flow [2022-04-18 19:09:42,280 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 355 places, 373 transitions, 767 flow [2022-04-18 19:09:42,280 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 355 places, 373 transitions, 767 flow [2022-04-18 19:09:42,345 INFO L129 PetriNetUnfolder]: 28/410 cut-off events. [2022-04-18 19:09:42,346 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-04-18 19:09:42,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 410 events. 28/410 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1304 event pairs, 0 based on Foata normal form. 0/330 useless extension candidates. Maximal degree in co-relation 352. Up to 8 conditions per place. [2022-04-18 19:09:42,389 INFO L116 LiptonReduction]: Number of co-enabled transitions 86784 [2022-04-18 19:13:47,332 INFO L131 LiptonReduction]: Checked pairs total: 1276214 [2022-04-18 19:13:47,332 INFO L133 LiptonReduction]: Total number of compositions: 358 [2022-04-18 19:13:47,333 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 213 places, 223 transitions, 467 flow