./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/qw2004-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_447d64f2-7662-4d9d-a3f1-4847956ef562/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_447d64f2-7662-4d9d-a3f1-4847956ef562/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_447d64f2-7662-4d9d-a3f1-4847956ef562/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_447d64f2-7662-4d9d-a3f1-4847956ef562/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-lit/qw2004-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_447d64f2-7662-4d9d-a3f1-4847956ef562/bin/utaipan-Xvt2sAort0/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_447d64f2-7662-4d9d-a3f1-4847956ef562/bin/utaipan-Xvt2sAort0 --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 a0f042164bf78d3595348b117153fa7346585efa21c060e488a9879023a64e1b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 19:47:16,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:47:16,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:47:16,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:47:16,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:47:16,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:47:16,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:47:16,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:47:16,767 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:47:16,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:47:16,769 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:47:16,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:47:16,771 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:47:16,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:47:16,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:47:16,774 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:47:16,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:47:16,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:47:16,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:47:16,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:47:16,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:47:16,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:47:16,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:47:16,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:47:16,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:47:16,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:47:16,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:47:16,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:47:16,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:47:16,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:47:16,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:47:16,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:47:16,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:47:16,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:47:16,795 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:47:16,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:47:16,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:47:16,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:47:16,796 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:47:16,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:47:16,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:47:16,803 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_447d64f2-7662-4d9d-a3f1-4847956ef562/bin/utaipan-Xvt2sAort0/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-16 19:47:16,842 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:47:16,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:47:16,847 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:47:16,847 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:47:16,848 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:47:16,848 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:47:16,849 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:47:16,849 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:47:16,849 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:47:16,849 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 19:47:16,850 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:47:16,850 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:47:16,850 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 19:47:16,850 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 19:47:16,851 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:47:16,851 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 19:47:16,851 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 19:47:16,851 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 19:47:16,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:47:16,853 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 19:47:16,853 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 19:47:16,853 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 19:47:16,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 19:47:16,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:47:16,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 19:47:16,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:47:16,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 19:47:16,855 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 19:47:16,855 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 19:47:16,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 19:47:16,855 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:47:16,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 19:47:16,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:47:16,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:47:16,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:47:16,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:47:16,869 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 19:47:16,869 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:47:16,869 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 19:47:16,869 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 19:47:16,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 19:47:16,870 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 19:47:16,870 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:47:16,870 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_447d64f2-7662-4d9d-a3f1-4847956ef562/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_447d64f2-7662-4d9d-a3f1-4847956ef562/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0f042164bf78d3595348b117153fa7346585efa21c060e488a9879023a64e1b [2022-11-16 19:47:17,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:47:17,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:47:17,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:47:17,182 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:47:17,183 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:47:17,185 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_447d64f2-7662-4d9d-a3f1-4847956ef562/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/pthread-lit/qw2004-2.i [2022-11-16 19:47:17,277 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_447d64f2-7662-4d9d-a3f1-4847956ef562/bin/utaipan-Xvt2sAort0/data/f06cfa8c0/48cc249246284ab8bd9dcaff7a43ebb9/FLAG41946f67e [2022-11-16 19:47:17,889 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:47:17,890 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_447d64f2-7662-4d9d-a3f1-4847956ef562/sv-benchmarks/c/pthread-lit/qw2004-2.i [2022-11-16 19:47:17,904 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_447d64f2-7662-4d9d-a3f1-4847956ef562/bin/utaipan-Xvt2sAort0/data/f06cfa8c0/48cc249246284ab8bd9dcaff7a43ebb9/FLAG41946f67e [2022-11-16 19:47:18,162 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_447d64f2-7662-4d9d-a3f1-4847956ef562/bin/utaipan-Xvt2sAort0/data/f06cfa8c0/48cc249246284ab8bd9dcaff7a43ebb9 [2022-11-16 19:47:18,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:47:18,167 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:47:18,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:47:18,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:47:18,176 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:47:18,177 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:47:18" (1/1) ... [2022-11-16 19:47:18,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@560be825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:18, skipping insertion in model container [2022-11-16 19:47:18,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:47:18" (1/1) ... [2022-11-16 19:47:18,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:47:18,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:47:18,619 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_447d64f2-7662-4d9d-a3f1-4847956ef562/sv-benchmarks/c/pthread-lit/qw2004-2.i[30003,30016] [2022-11-16 19:47:18,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:47:18,678 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:47:18,745 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_447d64f2-7662-4d9d-a3f1-4847956ef562/sv-benchmarks/c/pthread-lit/qw2004-2.i[30003,30016] [2022-11-16 19:47:18,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:47:18,791 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:47:18,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:18 WrapperNode [2022-11-16 19:47:18,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:47:18,793 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:47:18,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:47:18,794 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:47:18,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:18" (1/1) ... [2022-11-16 19:47:18,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:18" (1/1) ... [2022-11-16 19:47:18,860 INFO L138 Inliner]: procedures = 175, calls = 32, calls flagged for inlining = 9, calls inlined = 10, statements flattened = 172 [2022-11-16 19:47:18,866 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:47:18,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:47:18,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:47:18,870 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:47:18,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:18" (1/1) ... [2022-11-16 19:47:18,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:18" (1/1) ... [2022-11-16 19:47:18,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:18" (1/1) ... [2022-11-16 19:47:18,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:18" (1/1) ... [2022-11-16 19:47:18,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:18" (1/1) ... [2022-11-16 19:47:18,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:18" (1/1) ... [2022-11-16 19:47:18,924 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:18" (1/1) ... [2022-11-16 19:47:18,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:18" (1/1) ... [2022-11-16 19:47:18,928 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:47:18,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:47:18,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:47:18,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:47:18,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:18" (1/1) ... [2022-11-16 19:47:18,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:47:18,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_447d64f2-7662-4d9d-a3f1-4847956ef562/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:47:18,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_447d64f2-7662-4d9d-a3f1-4847956ef562/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:47:19,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_447d64f2-7662-4d9d-a3f1-4847956ef562/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:47:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2022-11-16 19:47:19,039 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2022-11-16 19:47:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 19:47:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 19:47:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 19:47:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 19:47:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 19:47:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 19:47:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 19:47:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:47:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:47:19,043 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 19:47:19,281 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:47:19,283 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:47:19,629 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:47:19,728 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:47:19,735 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 19:47:19,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:47:19 BoogieIcfgContainer [2022-11-16 19:47:19,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:47:19,740 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:47:19,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:47:19,744 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:47:19,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:47:18" (1/3) ... [2022-11-16 19:47:19,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4331e2e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:47:19, skipping insertion in model container [2022-11-16 19:47:19,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:18" (2/3) ... [2022-11-16 19:47:19,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4331e2e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:47:19, skipping insertion in model container [2022-11-16 19:47:19,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:47:19" (3/3) ... [2022-11-16 19:47:19,748 INFO L112 eAbstractionObserver]: Analyzing ICFG qw2004-2.i [2022-11-16 19:47:19,759 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 19:47:19,772 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:47:19,772 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2022-11-16 19:47:19,772 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 19:47:19,893 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 19:47:19,964 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 19:47:19,987 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 159 transitions, 323 flow [2022-11-16 19:47:19,998 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 159 transitions, 323 flow [2022-11-16 19:47:20,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 159 transitions, 323 flow [2022-11-16 19:47:20,122 INFO L130 PetriNetUnfolder]: 6/158 cut-off events. [2022-11-16 19:47:20,123 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 19:47:20,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 158 events. 6/158 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 202 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2022-11-16 19:47:20,137 INFO L119 LiptonReduction]: Number of co-enabled transitions 5964 [2022-11-16 19:47:24,760 INFO L134 LiptonReduction]: Checked pairs total: 8793 [2022-11-16 19:47:24,761 INFO L136 LiptonReduction]: Total number of compositions: 193 [2022-11-16 19:47:24,773 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 36 transitions, 77 flow [2022-11-16 19:47:24,803 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 213 states, 137 states have (on average 3.0364963503649633) internal successors, (416), 212 states have internal predecessors, (416), 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) [2022-11-16 19:47:24,825 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 19:47:24,833 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2f72dd4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 19:47:24,834 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-11-16 19:47:24,836 INFO L276 IsEmpty]: Start isEmpty. Operand has 213 states, 137 states have (on average 3.0364963503649633) internal successors, (416), 212 states have internal predecessors, (416), 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) [2022-11-16 19:47:24,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-16 19:47:24,842 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:47:24,843 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-16 19:47:24,843 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-16 19:47:24,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:47:24,848 INFO L85 PathProgramCache]: Analyzing trace with hash 710, now seen corresponding path program 1 times [2022-11-16 19:47:24,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:47:24,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020833049] [2022-11-16 19:47:24,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:47:24,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:47:24,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:47:24,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:47:24,972 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:47:24,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020833049] [2022-11-16 19:47:24,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020833049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:47:24,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:47:24,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-16 19:47:24,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121601093] [2022-11-16 19:47:24,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:47:24,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 19:47:24,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:47:25,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 19:47:25,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 19:47:25,029 INFO L87 Difference]: Start difference. First operand has 213 states, 137 states have (on average 3.0364963503649633) internal successors, (416), 212 states have internal predecessors, (416), 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) [2022-11-16 19:47:25,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:47:25,088 INFO L93 Difference]: Finished difference Result 64 states and 123 transitions. [2022-11-16 19:47:25,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 19:47:25,092 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 [2022-11-16 19:47:25,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:47:25,101 INFO L225 Difference]: With dead ends: 64 [2022-11-16 19:47:25,102 INFO L226 Difference]: Without dead ends: 62 [2022-11-16 19:47:25,103 INFO L412 NwaCegarLoop]: 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 [2022-11-16 19:47:25,108 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 19:47:25,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 19:47:25,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-16 19:47:25,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-16 19:47:25,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 59 states have (on average 2.016949152542373) internal successors, (119), 61 states have internal predecessors, (119), 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) [2022-11-16 19:47:25,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 119 transitions. [2022-11-16 19:47:25,166 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 119 transitions. Word has length 1 [2022-11-16 19:47:25,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:47:25,166 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 119 transitions. [2022-11-16 19:47:25,171 INFO L496 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) [2022-11-16 19:47:25,172 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 119 transitions. [2022-11-16 19:47:25,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 19:47:25,175 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:47:25,175 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 19:47:25,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 19:47:25,176 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-16 19:47:25,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:47:25,177 INFO L85 PathProgramCache]: Analyzing trace with hash 672024987, now seen corresponding path program 1 times [2022-11-16 19:47:25,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:47:25,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532088285] [2022-11-16 19:47:25,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:47:25,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:47:25,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:47:25,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:47:25,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:47:25,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532088285] [2022-11-16 19:47:25,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532088285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:47:25,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:47:25,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 19:47:25,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195099077] [2022-11-16 19:47:25,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:47:25,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:47:25,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:47:25,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:47:25,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:47:25,401 INFO L87 Difference]: Start difference. First operand 62 states and 119 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) 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) [2022-11-16 19:47:25,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:47:25,476 INFO L93 Difference]: Finished difference Result 107 states and 199 transitions. [2022-11-16 19:47:25,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:47:25,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) 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 [2022-11-16 19:47:25,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:47:25,485 INFO L225 Difference]: With dead ends: 107 [2022-11-16 19:47:25,486 INFO L226 Difference]: Without dead ends: 107 [2022-11-16 19:47:25,487 INFO L412 NwaCegarLoop]: 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 [2022-11-16 19:47:25,489 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:47:25,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 6 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 19:47:25,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-16 19:47:25,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 62. [2022-11-16 19:47:25,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 59 states have (on average 2.0) internal successors, (118), 61 states have internal predecessors, (118), 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) [2022-11-16 19:47:25,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 118 transitions. [2022-11-16 19:47:25,501 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 118 transitions. Word has length 5 [2022-11-16 19:47:25,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:47:25,501 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 118 transitions. [2022-11-16 19:47:25,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) 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) [2022-11-16 19:47:25,502 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 118 transitions. [2022-11-16 19:47:25,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-16 19:47:25,503 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:47:25,503 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-16 19:47:25,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 19:47:25,503 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-16 19:47:25,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:47:25,504 INFO L85 PathProgramCache]: Analyzing trace with hash -642586391, now seen corresponding path program 1 times [2022-11-16 19:47:25,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:47:25,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802260804] [2022-11-16 19:47:25,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:47:25,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:47:25,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:47:25,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:47:25,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:47:25,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802260804] [2022-11-16 19:47:25,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802260804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:47:25,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:47:25,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 19:47:25,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700390947] [2022-11-16 19:47:25,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:47:25,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:47:25,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:47:25,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:47:25,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:47:25,609 INFO L87 Difference]: Start difference. First operand 62 states and 118 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:47:25,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:47:25,650 INFO L93 Difference]: Finished difference Result 61 states and 112 transitions. [2022-11-16 19:47:25,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:47:25,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-16 19:47:25,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:47:25,651 INFO L225 Difference]: With dead ends: 61 [2022-11-16 19:47:25,651 INFO L226 Difference]: Without dead ends: 56 [2022-11-16 19:47:25,652 INFO L412 NwaCegarLoop]: 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 [2022-11-16 19:47:25,653 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 19:47:25,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 19:47:25,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-16 19:47:25,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-11-16 19:47:25,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 52 states have (on average 1.9615384615384615) internal successors, (102), 55 states have internal predecessors, (102), 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) [2022-11-16 19:47:25,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 102 transitions. [2022-11-16 19:47:25,660 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 102 transitions. Word has length 6 [2022-11-16 19:47:25,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:47:25,661 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 102 transitions. [2022-11-16 19:47:25,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:47:25,661 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 102 transitions. [2022-11-16 19:47:25,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 19:47:25,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:47:25,671 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:47:25,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 19:47:25,671 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-16 19:47:25,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:47:25,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1553667096, now seen corresponding path program 1 times [2022-11-16 19:47:25,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:47:25,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773287937] [2022-11-16 19:47:25,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:47:25,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:47:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:47:25,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:47:25,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:47:25,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773287937] [2022-11-16 19:47:25,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773287937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:47:25,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:47:25,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 19:47:25,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088081145] [2022-11-16 19:47:25,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:47:25,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:47:25,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:47:25,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:47:25,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:47:25,773 INFO L87 Difference]: Start difference. First operand 56 states and 102 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-16 19:47:25,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:47:25,831 INFO L93 Difference]: Finished difference Result 53 states and 92 transitions. [2022-11-16 19:47:25,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:47:25,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-11-16 19:47:25,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:47:25,833 INFO L225 Difference]: With dead ends: 53 [2022-11-16 19:47:25,833 INFO L226 Difference]: Without dead ends: 38 [2022-11-16 19:47:25,833 INFO L412 NwaCegarLoop]: 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 [2022-11-16 19:47:25,835 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1 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 [2022-11-16 19:47:25,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 19:47:25,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-16 19:47:25,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-11-16 19:47:25,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 35 states have (on average 1.7428571428571429) internal successors, (61), 37 states have internal predecessors, (61), 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) [2022-11-16 19:47:25,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2022-11-16 19:47:25,850 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 61 transitions. Word has length 7 [2022-11-16 19:47:25,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:47:25,851 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 61 transitions. [2022-11-16 19:47:25,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-16 19:47:25,851 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2022-11-16 19:47:25,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 19:47:25,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:47:25,852 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:47:25,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 19:47:25,853 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-16 19:47:25,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:47:25,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1555099950, now seen corresponding path program 1 times [2022-11-16 19:47:25,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:47:25,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593968499] [2022-11-16 19:47:25,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:47:25,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:47:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:47:25,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:47:25,938 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:47:25,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593968499] [2022-11-16 19:47:25,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593968499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:47:25,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:47:25,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 19:47:25,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2309382] [2022-11-16 19:47:25,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:47:25,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:47:25,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:47:25,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:47:25,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:47:25,942 INFO L87 Difference]: Start difference. First operand 38 states and 61 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-16 19:47:25,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:47:25,982 INFO L93 Difference]: Finished difference Result 42 states and 65 transitions. [2022-11-16 19:47:25,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:47:25,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2022-11-16 19:47:25,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:47:25,983 INFO L225 Difference]: With dead ends: 42 [2022-11-16 19:47:25,984 INFO L226 Difference]: Without dead ends: 42 [2022-11-16 19:47:25,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:47:25,985 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 19:47:25,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 19:47:25,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-16 19:47:25,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-11-16 19:47:25,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 39 states have (on average 1.6666666666666667) internal successors, (65), 41 states have internal predecessors, (65), 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) [2022-11-16 19:47:25,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 65 transitions. [2022-11-16 19:47:25,992 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 65 transitions. Word has length 9 [2022-11-16 19:47:25,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:47:25,992 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 65 transitions. [2022-11-16 19:47:25,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-16 19:47:25,993 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 65 transitions. [2022-11-16 19:47:25,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 19:47:25,994 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:47:25,994 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:47:25,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 19:47:25,995 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-16 19:47:25,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:47:25,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1553824846, now seen corresponding path program 1 times [2022-11-16 19:47:25,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:47:25,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815000215] [2022-11-16 19:47:25,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:47:25,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:47:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:47:26,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:47:26,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:47:26,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815000215] [2022-11-16 19:47:26,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815000215] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:47:26,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:47:26,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 19:47:26,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155120341] [2022-11-16 19:47:26,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:47:26,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 19:47:26,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:47:26,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 19:47:26,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:47:26,117 INFO L87 Difference]: Start difference. First operand 42 states and 65 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-16 19:47:26,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:47:26,202 INFO L93 Difference]: Finished difference Result 45 states and 68 transitions. [2022-11-16 19:47:26,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 19:47:26,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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 9 [2022-11-16 19:47:26,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:47:26,203 INFO L225 Difference]: With dead ends: 45 [2022-11-16 19:47:26,203 INFO L226 Difference]: Without dead ends: 38 [2022-11-16 19:47:26,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:47:26,205 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 10 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:47:26,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 19:47:26,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-16 19:47:26,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-11-16 19:47:26,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 37 states have internal predecessors, (57), 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) [2022-11-16 19:47:26,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 57 transitions. [2022-11-16 19:47:26,210 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 57 transitions. Word has length 9 [2022-11-16 19:47:26,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:47:26,211 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 57 transitions. [2022-11-16 19:47:26,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-16 19:47:26,212 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 57 transitions. [2022-11-16 19:47:26,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 19:47:26,212 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:47:26,213 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:47:26,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 19:47:26,213 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-16 19:47:26,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:47:26,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1776602337, now seen corresponding path program 1 times [2022-11-16 19:47:26,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:47:26,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141959732] [2022-11-16 19:47:26,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:47:26,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:47:26,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:47:26,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:47:26,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:47:26,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141959732] [2022-11-16 19:47:26,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141959732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:47:26,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:47:26,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 19:47:26,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316753296] [2022-11-16 19:47:26,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:47:26,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:47:26,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:47:26,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:47:26,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:47:26,270 INFO L87 Difference]: Start difference. First operand 38 states and 57 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-11-16 19:47:26,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:47:26,312 INFO L93 Difference]: Finished difference Result 38 states and 53 transitions. [2022-11-16 19:47:26,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:47:26,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2022-11-16 19:47:26,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:47:26,313 INFO L225 Difference]: With dead ends: 38 [2022-11-16 19:47:26,315 INFO L226 Difference]: Without dead ends: 34 [2022-11-16 19:47:26,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:47:26,317 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 19:47:26,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 19:47:26,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-16 19:47:26,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-16 19:47:26,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 31 states have (on average 1.5806451612903225) internal successors, (49), 33 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:47:26,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 49 transitions. [2022-11-16 19:47:26,327 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 49 transitions. Word has length 11 [2022-11-16 19:47:26,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:47:26,328 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 49 transitions. [2022-11-16 19:47:26,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-11-16 19:47:26,329 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 49 transitions. [2022-11-16 19:47:26,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 19:47:26,331 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:47:26,331 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:47:26,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 19:47:26,332 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-16 19:47:26,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:47:26,335 INFO L85 PathProgramCache]: Analyzing trace with hash -553426397, now seen corresponding path program 2 times [2022-11-16 19:47:26,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:47:26,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141535860] [2022-11-16 19:47:26,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:47:26,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:47:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 19:47:26,361 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 19:47:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 19:47:26,421 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-16 19:47:26,421 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 19:47:26,423 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (26 of 27 remaining) [2022-11-16 19:47:26,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (25 of 27 remaining) [2022-11-16 19:47:26,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (24 of 27 remaining) [2022-11-16 19:47:26,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (23 of 27 remaining) [2022-11-16 19:47:26,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (22 of 27 remaining) [2022-11-16 19:47:26,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2022-11-16 19:47:26,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (20 of 27 remaining) [2022-11-16 19:47:26,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2022-11-16 19:47:26,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2022-11-16 19:47:26,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2022-11-16 19:47:26,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2022-11-16 19:47:26,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2022-11-16 19:47:26,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 27 remaining) [2022-11-16 19:47:26,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 27 remaining) [2022-11-16 19:47:26,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 27 remaining) [2022-11-16 19:47:26,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (11 of 27 remaining) [2022-11-16 19:47:26,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (10 of 27 remaining) [2022-11-16 19:47:26,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (9 of 27 remaining) [2022-11-16 19:47:26,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2022-11-16 19:47:26,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 27 remaining) [2022-11-16 19:47:26,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (6 of 27 remaining) [2022-11-16 19:47:26,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2022-11-16 19:47:26,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2022-11-16 19:47:26,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2022-11-16 19:47:26,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2022-11-16 19:47:26,441 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2022-11-16 19:47:26,442 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2022-11-16 19:47:26,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 19:47:26,448 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2022-11-16 19:47:26,456 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 19:47:26,457 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 19:47:26,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:47:26 BasicIcfg [2022-11-16 19:47:26,531 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 19:47:26,532 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 19:47:26,532 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 19:47:26,532 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 19:47:26,533 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:47:19" (3/4) ... [2022-11-16 19:47:26,536 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 19:47:26,536 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 19:47:26,537 INFO L158 Benchmark]: Toolchain (without parser) took 8370.14ms. Allocated memory was 109.1MB in the beginning and 161.5MB in the end (delta: 52.4MB). Free memory was 62.7MB in the beginning and 132.1MB in the end (delta: -69.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 19:47:26,537 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 109.1MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 19:47:26,537 INFO L158 Benchmark]: CACSL2BoogieTranslator took 621.93ms. Allocated memory is still 109.1MB. Free memory was 62.5MB in the beginning and 72.5MB in the end (delta: -10.1MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2022-11-16 19:47:26,538 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.38ms. Allocated memory is still 109.1MB. Free memory was 72.5MB in the beginning and 70.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:47:26,538 INFO L158 Benchmark]: Boogie Preprocessor took 73.07ms. Allocated memory is still 109.1MB. Free memory was 70.3MB in the beginning and 68.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:47:26,539 INFO L158 Benchmark]: RCFGBuilder took 796.59ms. Allocated memory is still 109.1MB. Free memory was 68.7MB in the beginning and 46.4MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-16 19:47:26,539 INFO L158 Benchmark]: TraceAbstraction took 6790.88ms. Allocated memory was 109.1MB in the beginning and 161.5MB in the end (delta: 52.4MB). Free memory was 45.6MB in the beginning and 132.1MB in the end (delta: -86.5MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. [2022-11-16 19:47:26,540 INFO L158 Benchmark]: Witness Printer took 4.39ms. Allocated memory is still 161.5MB. Free memory is still 132.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 19:47:26,542 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 109.1MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 621.93ms. Allocated memory is still 109.1MB. Free memory was 62.5MB in the beginning and 72.5MB in the end (delta: -10.1MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.38ms. Allocated memory is still 109.1MB. Free memory was 72.5MB in the beginning and 70.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.07ms. Allocated memory is still 109.1MB. Free memory was 70.3MB in the beginning and 68.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 796.59ms. Allocated memory is still 109.1MB. Free memory was 68.7MB in the beginning and 46.4MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 6790.88ms. Allocated memory was 109.1MB in the beginning and 161.5MB in the end (delta: 52.4MB). Free memory was 45.6MB in the beginning and 132.1MB in the end (delta: -86.5MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. * Witness Printer took 4.39ms. Allocated memory is still 161.5MB. Free memory is still 132.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.8s, 157 PlacesBefore, 38 PlacesAfterwards, 159 TransitionsBefore, 36 TransitionsAfterwards, 5964 CoEnabledTransitionPairs, 8 FixpointIterations, 55 TrivialSequentialCompositions, 115 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 4 ChoiceCompositions, 193 TotalNumberOfCompositions, 8793 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6501, independent: 6319, independent conditional: 0, independent unconditional: 6319, dependent: 182, dependent conditional: 0, dependent unconditional: 182, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4446, independent: 4386, independent conditional: 0, independent unconditional: 4386, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4446, independent: 4313, independent conditional: 0, independent unconditional: 4313, dependent: 133, dependent conditional: 0, dependent unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 133, independent: 73, independent conditional: 0, independent unconditional: 73, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 265, independent: 95, independent conditional: 0, independent unconditional: 95, dependent: 171, dependent conditional: 0, dependent unconditional: 171, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6501, independent: 1933, independent conditional: 0, independent unconditional: 1933, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 4446, unknown conditional: 0, unknown unconditional: 4446] , Statistics on independence cache: Total cache size (in pairs): 142, Positive cache size: 125, Positive conditional cache size: 0, Positive unconditional cache size: 125, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 737]: Data race detected Data race detected The following path leads to a data race: [L700] 0 volatile int stopped; [L699] 0 volatile int stoppingEvent; [L698] 0 volatile int pendingIo; [L697] 0 volatile int stoppingFlag; [L755] 0 pthread_t t; [L756] 0 pendingIo = 1 [L757] 0 stoppingFlag = 0 [L758] 0 stoppingEvent = 0 [L759] 0 stopped = 0 [L760] FCALL, FORK 0 pthread_create(&t, 0, BCSP_PnpStop, 0) VAL [pendingIo=1, pthread_create(&t, 0, BCSP_PnpStop, 0)=-1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L761] CALL 0 BCSP_PnpAdd(0) [L734] 0 int status; [L735] CALL, EXPR 0 BCSP_IoIncrement() [L703] 0 int lsf = stoppingFlag; [L705] COND FALSE 0 !(\read(lsf)) VAL [lsf=0, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L744] 1 stoppingFlag = 1 [L746] CALL 1 BCSP_IoDecrement() [L725] 1 int pending; [L726] CALL, EXPR 1 dec() [L719] 1 pendingIo-- [L720] 1 int tmp = pendingIo; [L722] 1 return tmp; [L726] RET, EXPR 1 dec() [L726] 1 pending = dec() [L709] 0 int lp = pendingIo; VAL [lp=0, lsf=0, pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=1] [L712] 0 pendingIo = lp + 1 [L715] 0 return 0; [L735] RET, EXPR 0 BCSP_IoIncrement() [L735] 0 status = BCSP_IoIncrement() [L736] COND TRUE 0 status == 0 [L737] 0 !stopped VAL [arg={0:0}, arg={0:0}, pendingIo=1, status=0, stopped=0, stoppingEvent=0, stoppingFlag=1] [L727] COND TRUE 1 pending == 0 [L729] 1 stoppingEvent = 1 [L746] RET 1 BCSP_IoDecrement() [L748] 1 int lse = stoppingEvent; [L750] CALL 1 assume_abort_if_not(lse) [L686] COND FALSE 1 !(!cond) [L750] RET 1 assume_abort_if_not(lse) [L751] 1 stopped = 1 VAL [arg={0:0}, arg={0:0}, lse=1, pendingIo=1, stopped=1, stopped = 1=49, stoppingEvent=1, stoppingFlag=1] [L737] 0 !stopped VAL [arg={0:0}, arg={0:0}, pendingIo=1, status=0, stopped=1, stoppingEvent=1, stoppingFlag=1] Now there is a data race on ~stopped~0 between C: stopped = 1 [751] and C: !stopped [737] - UnprovableResult [Line: 744]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 748]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 751]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 756]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 757]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 758]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 759]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 760]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 196 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 6.5s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 52 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 52 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 262 IncrementalHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 14 mSDtfsCounter, 262 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=213occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 45 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 75 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-16 19:47:26,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_447d64f2-7662-4d9d-a3f1-4847956ef562/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE