./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/stack_longer-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/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_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/stack_longer-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/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_65398f1f-0693-4822-a7f2-4402a2b3d8e1/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 402cb3c5f3290109e83e598d96446a87fac59fa4aaa0b6234366e7da005f5688 --- 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 16:15:22,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:15:22,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:15:22,853 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:15:22,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:15:22,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:15:22,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:15:22,863 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:15:22,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:15:22,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:15:22,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:15:22,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:15:22,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:15:22,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:15:22,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:15:22,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:15:22,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:15:22,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:15:22,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:15:22,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:15:22,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:15:22,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:15:22,899 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:15:22,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:15:22,906 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:15:22,909 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:15:22,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:15:22,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:15:22,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:15:22,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:15:22,914 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:15:22,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:15:22,916 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:15:22,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:15:22,919 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:15:22,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:15:22,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:15:22,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:15:22,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:15:22,923 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:15:22,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:15:22,924 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-16 16:15:22,967 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:15:22,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:15:22,968 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:15:22,968 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:15:22,969 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:15:22,969 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:15:22,969 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:15:22,970 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:15:22,970 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:15:22,970 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 16:15:22,971 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:15:22,971 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:15:22,972 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 16:15:22,972 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 16:15:22,972 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:15:22,972 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 16:15:22,972 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 16:15:22,973 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 16:15:22,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:15:22,974 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 16:15:22,974 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 16:15:22,974 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 16:15:22,974 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 16:15:22,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:15:22,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:15:22,975 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:15:22,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:15:22,977 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 16:15:22,977 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 16:15:22,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:15:22,977 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:15:22,978 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:15:22,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:15:22,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:15:22,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:15:22,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:15:22,979 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 16:15:22,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:15:22,979 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:15:22,979 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 16:15:22,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 16:15:22,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:15:22,980 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:15:22,980 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_65398f1f-0693-4822-a7f2-4402a2b3d8e1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 402cb3c5f3290109e83e598d96446a87fac59fa4aaa0b6234366e7da005f5688 [2022-11-16 16:15:23,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:15:23,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:15:23,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:15:23,290 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:15:23,290 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:15:23,292 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/pthread/stack_longer-2.i [2022-11-16 16:15:23,357 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/data/2ef5a6ad5/a04824d29b40477d88799e3c62e1e9d2/FLAG4d28f8a1f [2022-11-16 16:15:23,871 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:15:23,872 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/sv-benchmarks/c/pthread/stack_longer-2.i [2022-11-16 16:15:23,889 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/data/2ef5a6ad5/a04824d29b40477d88799e3c62e1e9d2/FLAG4d28f8a1f [2022-11-16 16:15:24,186 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/data/2ef5a6ad5/a04824d29b40477d88799e3c62e1e9d2 [2022-11-16 16:15:24,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:15:24,191 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:15:24,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:15:24,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:15:24,200 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:15:24,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:15:24" (1/1) ... [2022-11-16 16:15:24,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1639feae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:24, skipping insertion in model container [2022-11-16 16:15:24,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:15:24" (1/1) ... [2022-11-16 16:15:24,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:15:24,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:15:24,825 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_65398f1f-0693-4822-a7f2-4402a2b3d8e1/sv-benchmarks/c/pthread/stack_longer-2.i[41529,41542] [2022-11-16 16:15:24,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:15:24,864 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:15:24,896 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_65398f1f-0693-4822-a7f2-4402a2b3d8e1/sv-benchmarks/c/pthread/stack_longer-2.i[41529,41542] [2022-11-16 16:15:24,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:15:24,967 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:15:24,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:24 WrapperNode [2022-11-16 16:15:24,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:15:24,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:15:24,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:15:24,969 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:15:24,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:24" (1/1) ... [2022-11-16 16:15:24,993 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:24" (1/1) ... [2022-11-16 16:15:25,020 INFO L138 Inliner]: procedures = 277, calls = 40, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 194 [2022-11-16 16:15:25,021 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:15:25,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:15:25,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:15:25,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:15:25,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:24" (1/1) ... [2022-11-16 16:15:25,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:24" (1/1) ... [2022-11-16 16:15:25,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:24" (1/1) ... [2022-11-16 16:15:25,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:24" (1/1) ... [2022-11-16 16:15:25,046 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:24" (1/1) ... [2022-11-16 16:15:25,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:24" (1/1) ... [2022-11-16 16:15:25,051 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:24" (1/1) ... [2022-11-16 16:15:25,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:24" (1/1) ... [2022-11-16 16:15:25,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:15:25,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:15:25,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:15:25,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:15:25,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:24" (1/1) ... [2022-11-16 16:15:25,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:15:25,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:15:25,089 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:15:25,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:15:25,137 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-16 16:15:25,137 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-16 16:15:25,138 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-16 16:15:25,138 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-16 16:15:25,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 16:15:25,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 16:15:25,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 16:15:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 16:15:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 16:15:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 16:15:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 16:15:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:15:25,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:15:25,141 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 16:15:25,280 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:15:25,283 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:15:25,742 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:15:25,754 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:15:25,754 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 16:15:25,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:15:25 BoogieIcfgContainer [2022-11-16 16:15:25,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:15:25,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:15:25,760 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:15:25,763 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:15:25,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:15:24" (1/3) ... [2022-11-16 16:15:25,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b3b380b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:15:25, skipping insertion in model container [2022-11-16 16:15:25,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:24" (2/3) ... [2022-11-16 16:15:25,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b3b380b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:15:25, skipping insertion in model container [2022-11-16 16:15:25,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:15:25" (3/3) ... [2022-11-16 16:15:25,766 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_longer-2.i [2022-11-16 16:15:25,775 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 16:15:25,785 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:15:25,786 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2022-11-16 16:15:25,786 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 16:15:25,913 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 16:15:25,953 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 16:15:25,966 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 224 places, 227 transitions, 470 flow [2022-11-16 16:15:25,969 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 224 places, 227 transitions, 470 flow [2022-11-16 16:15:25,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 224 places, 227 transitions, 470 flow [2022-11-16 16:15:26,091 INFO L130 PetriNetUnfolder]: 10/225 cut-off events. [2022-11-16 16:15:26,091 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 16:15:26,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 225 events. 10/225 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 544 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 177. Up to 3 conditions per place. [2022-11-16 16:15:26,109 INFO L119 LiptonReduction]: Number of co-enabled transitions 17640 [2022-11-16 16:15:32,271 INFO L134 LiptonReduction]: Checked pairs total: 62126 [2022-11-16 16:15:32,271 INFO L136 LiptonReduction]: Total number of compositions: 166 [2022-11-16 16:15:32,279 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 85 transitions, 186 flow [2022-11-16 16:15:32,537 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7191 states, 7100 states have (on average 3.0126760563380284) internal successors, (21390), 7190 states have internal predecessors, (21390), 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 16:15:32,562 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 16:15:32,570 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;@363d3ffa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 16:15:32,571 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-11-16 16:15:32,593 INFO L276 IsEmpty]: Start isEmpty. Operand has 7191 states, 7100 states have (on average 3.0126760563380284) internal successors, (21390), 7190 states have internal predecessors, (21390), 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 16:15:32,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 16:15:32,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:15:32,599 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 16:15:32,600 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-16 16:15:32,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:15:32,608 INFO L85 PathProgramCache]: Analyzing trace with hash 816545676, now seen corresponding path program 1 times [2022-11-16 16:15:32,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:15:32,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375418533] [2022-11-16 16:15:32,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:15:32,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:15:32,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:15:32,882 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 16:15:32,883 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:15:32,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375418533] [2022-11-16 16:15:32,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375418533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:15:32,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:15:32,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:15:32,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592486264] [2022-11-16 16:15:32,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:15:32,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 16:15:32,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:15:32,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 16:15:32,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 16:15:32,954 INFO L87 Difference]: Start difference. First operand has 7191 states, 7100 states have (on average 3.0126760563380284) internal successors, (21390), 7190 states have internal predecessors, (21390), 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, 2 states have (on average 2.5) 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 16:15:33,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:15:33,221 INFO L93 Difference]: Finished difference Result 7191 states and 21132 transitions. [2022-11-16 16:15:33,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 16:15:33,225 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) 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 16:15:33,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:15:33,309 INFO L225 Difference]: With dead ends: 7191 [2022-11-16 16:15:33,310 INFO L226 Difference]: Without dead ends: 7190 [2022-11-16 16:15:33,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 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 16:15:33,315 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:15:33,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:15:33,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7190 states. [2022-11-16 16:15:33,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7190 to 7190. [2022-11-16 16:15:33,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7190 states, 7100 states have (on average 2.976056338028169) internal successors, (21130), 7189 states have internal predecessors, (21130), 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 16:15:33,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7190 states to 7190 states and 21130 transitions. [2022-11-16 16:15:33,767 INFO L78 Accepts]: Start accepts. Automaton has 7190 states and 21130 transitions. Word has length 5 [2022-11-16 16:15:33,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:15:33,768 INFO L495 AbstractCegarLoop]: Abstraction has 7190 states and 21130 transitions. [2022-11-16 16:15:33,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) 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 16:15:33,770 INFO L276 IsEmpty]: Start isEmpty. Operand 7190 states and 21130 transitions. [2022-11-16 16:15:33,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-16 16:15:33,770 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:15:33,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-16 16:15:33,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 16:15:33,771 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-16 16:15:33,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:15:33,772 INFO L85 PathProgramCache]: Analyzing trace with hash -456883260, now seen corresponding path program 1 times [2022-11-16 16:15:33,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:15:33,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769221373] [2022-11-16 16:15:33,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:15:33,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:15:33,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:15:33,928 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 16:15:33,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:15:33,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769221373] [2022-11-16 16:15:33,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769221373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:15:33,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:15:33,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:15:33,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221910426] [2022-11-16 16:15:33,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:15:33,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:15:33,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:15:33,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:15:33,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:15:33,933 INFO L87 Difference]: Start difference. First operand 7190 states and 21130 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 16:15:34,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:15:34,220 INFO L93 Difference]: Finished difference Result 9102 states and 25289 transitions. [2022-11-16 16:15:34,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:15:34,221 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 16:15:34,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:15:34,295 INFO L225 Difference]: With dead ends: 9102 [2022-11-16 16:15:34,296 INFO L226 Difference]: Without dead ends: 9102 [2022-11-16 16:15:34,296 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 16:15:34,297 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 62 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 16:15:34,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 70 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 16:15:34,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9102 states. [2022-11-16 16:15:34,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9102 to 7324. [2022-11-16 16:15:34,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7324 states, 7258 states have (on average 2.807384954532929) internal successors, (20376), 7323 states have internal predecessors, (20376), 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 16:15:34,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7324 states to 7324 states and 20376 transitions. [2022-11-16 16:15:34,755 INFO L78 Accepts]: Start accepts. Automaton has 7324 states and 20376 transitions. Word has length 6 [2022-11-16 16:15:34,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:15:34,755 INFO L495 AbstractCegarLoop]: Abstraction has 7324 states and 20376 transitions. [2022-11-16 16:15:34,755 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 16:15:34,756 INFO L276 IsEmpty]: Start isEmpty. Operand 7324 states and 20376 transitions. [2022-11-16 16:15:34,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 16:15:34,758 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:15:34,758 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:15:34,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 16:15:34,758 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-16 16:15:34,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:15:34,759 INFO L85 PathProgramCache]: Analyzing trace with hash -308727422, now seen corresponding path program 1 times [2022-11-16 16:15:34,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:15:34,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355408662] [2022-11-16 16:15:34,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:15:34,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:15:34,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:15:35,204 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 16:15:35,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:15:35,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355408662] [2022-11-16 16:15:35,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355408662] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:15:35,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:15:35,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 16:15:35,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155684772] [2022-11-16 16:15:35,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:15:35,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 16:15:35,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:15:35,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 16:15:35,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 16:15:35,208 INFO L87 Difference]: Start difference. First operand 7324 states and 20376 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:15:35,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:15:35,850 INFO L93 Difference]: Finished difference Result 11796 states and 32424 transitions. [2022-11-16 16:15:35,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 16:15:35,851 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-16 16:15:35,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:15:36,012 INFO L225 Difference]: With dead ends: 11796 [2022-11-16 16:15:36,016 INFO L226 Difference]: Without dead ends: 11796 [2022-11-16 16:15:36,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 16:15:36,020 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 225 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 16:15:36,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 232 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 16:15:36,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11796 states. [2022-11-16 16:15:36,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11796 to 10696. [2022-11-16 16:15:36,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10696 states, 10630 states have (on average 2.84722483537159) internal successors, (30266), 10695 states have internal predecessors, (30266), 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 16:15:36,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10696 states to 10696 states and 30266 transitions. [2022-11-16 16:15:36,711 INFO L78 Accepts]: Start accepts. Automaton has 10696 states and 30266 transitions. Word has length 10 [2022-11-16 16:15:36,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:15:36,712 INFO L495 AbstractCegarLoop]: Abstraction has 10696 states and 30266 transitions. [2022-11-16 16:15:36,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:15:36,712 INFO L276 IsEmpty]: Start isEmpty. Operand 10696 states and 30266 transitions. [2022-11-16 16:15:36,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-16 16:15:36,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:15:36,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:15:36,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 16:15:36,717 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-16 16:15:36,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:15:36,718 INFO L85 PathProgramCache]: Analyzing trace with hash 419960233, now seen corresponding path program 1 times [2022-11-16 16:15:36,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:15:36,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858661808] [2022-11-16 16:15:36,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:15:36,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:15:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:15:36,998 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 16:15:36,998 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:15:37,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858661808] [2022-11-16 16:15:37,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858661808] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:15:37,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:15:37,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 16:15:37,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738088338] [2022-11-16 16:15:37,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:15:37,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 16:15:37,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:15:37,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 16:15:37,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 16:15:37,008 INFO L87 Difference]: Start difference. First operand 10696 states and 30266 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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 16:15:37,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:15:37,548 INFO L93 Difference]: Finished difference Result 11663 states and 33021 transitions. [2022-11-16 16:15:37,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 16:15:37,550 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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 16 [2022-11-16 16:15:37,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:15:37,598 INFO L225 Difference]: With dead ends: 11663 [2022-11-16 16:15:37,598 INFO L226 Difference]: Without dead ends: 11663 [2022-11-16 16:15:37,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 16:15:37,599 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 124 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 16:15:37,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 145 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 16:15:37,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11663 states. [2022-11-16 16:15:37,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11663 to 11663. [2022-11-16 16:15:37,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11663 states, 11597 states have (on average 2.847374320945072) internal successors, (33021), 11662 states have internal predecessors, (33021), 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 16:15:38,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11663 states to 11663 states and 33021 transitions. [2022-11-16 16:15:38,022 INFO L78 Accepts]: Start accepts. Automaton has 11663 states and 33021 transitions. Word has length 16 [2022-11-16 16:15:38,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:15:38,023 INFO L495 AbstractCegarLoop]: Abstraction has 11663 states and 33021 transitions. [2022-11-16 16:15:38,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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 16:15:38,024 INFO L276 IsEmpty]: Start isEmpty. Operand 11663 states and 33021 transitions. [2022-11-16 16:15:38,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 16:15:38,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:15:38,027 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:15:38,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 16:15:38,028 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-16 16:15:38,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:15:38,028 INFO L85 PathProgramCache]: Analyzing trace with hash -449977899, now seen corresponding path program 1 times [2022-11-16 16:15:38,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:15:38,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487776704] [2022-11-16 16:15:38,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:15:38,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:15:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:15:38,081 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 16:15:38,081 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:15:38,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487776704] [2022-11-16 16:15:38,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487776704] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:15:38,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:15:38,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:15:38,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053935047] [2022-11-16 16:15:38,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:15:38,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:15:38,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:15:38,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:15:38,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:15:38,084 INFO L87 Difference]: Start difference. First operand 11663 states and 33021 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 16:15:38,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:15:38,310 INFO L93 Difference]: Finished difference Result 19790 states and 56646 transitions. [2022-11-16 16:15:38,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:15:38,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2022-11-16 16:15:38,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:15:38,407 INFO L225 Difference]: With dead ends: 19790 [2022-11-16 16:15:38,407 INFO L226 Difference]: Without dead ends: 19790 [2022-11-16 16:15:38,407 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 16:15:38,408 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 68 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:15:38,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 103 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:15:38,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19790 states. [2022-11-16 16:15:38,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19790 to 11861. [2022-11-16 16:15:38,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11861 states, 11795 states have (on average 2.8485799067401443) internal successors, (33599), 11860 states have internal predecessors, (33599), 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 16:15:39,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11861 states to 11861 states and 33599 transitions. [2022-11-16 16:15:39,120 INFO L78 Accepts]: Start accepts. Automaton has 11861 states and 33599 transitions. Word has length 17 [2022-11-16 16:15:39,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:15:39,120 INFO L495 AbstractCegarLoop]: Abstraction has 11861 states and 33599 transitions. [2022-11-16 16:15:39,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 16:15:39,121 INFO L276 IsEmpty]: Start isEmpty. Operand 11861 states and 33599 transitions. [2022-11-16 16:15:39,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 16:15:39,124 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:15:39,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:15:39,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 16:15:39,125 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-16 16:15:39,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:15:39,126 INFO L85 PathProgramCache]: Analyzing trace with hash 399129957, now seen corresponding path program 1 times [2022-11-16 16:15:39,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:15:39,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195074302] [2022-11-16 16:15:39,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:15:39,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:15:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:15:39,170 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 16:15:39,170 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:15:39,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195074302] [2022-11-16 16:15:39,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195074302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:15:39,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:15:39,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:15:39,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140112263] [2022-11-16 16:15:39,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:15:39,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:15:39,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:15:39,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:15:39,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:15:39,172 INFO L87 Difference]: Start difference. First operand 11861 states and 33599 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:15:39,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:15:39,338 INFO L93 Difference]: Finished difference Result 14610 states and 41039 transitions. [2022-11-16 16:15:39,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:15:39,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-16 16:15:39,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:15:39,398 INFO L225 Difference]: With dead ends: 14610 [2022-11-16 16:15:39,398 INFO L226 Difference]: Without dead ends: 14598 [2022-11-16 16:15:39,398 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 16:15:39,399 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 42 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:15:39,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 84 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:15:39,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14598 states. [2022-11-16 16:15:39,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14598 to 14113. [2022-11-16 16:15:39,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14113 states, 14047 states have (on average 2.8603972378443796) internal successors, (40180), 14112 states have internal predecessors, (40180), 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 16:15:39,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14113 states to 14113 states and 40180 transitions. [2022-11-16 16:15:39,875 INFO L78 Accepts]: Start accepts. Automaton has 14113 states and 40180 transitions. Word has length 18 [2022-11-16 16:15:39,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:15:39,876 INFO L495 AbstractCegarLoop]: Abstraction has 14113 states and 40180 transitions. [2022-11-16 16:15:39,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:15:39,876 INFO L276 IsEmpty]: Start isEmpty. Operand 14113 states and 40180 transitions. [2022-11-16 16:15:39,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-16 16:15:39,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:15:39,879 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:15:39,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 16:15:39,879 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-16 16:15:39,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:15:39,880 INFO L85 PathProgramCache]: Analyzing trace with hash -2077546138, now seen corresponding path program 1 times [2022-11-16 16:15:39,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:15:39,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267954990] [2022-11-16 16:15:39,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:15:39,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:15:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:15:40,550 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 16:15:40,550 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:15:40,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267954990] [2022-11-16 16:15:40,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267954990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:15:40,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:15:40,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 16:15:40,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114806968] [2022-11-16 16:15:40,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:15:40,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 16:15:40,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:15:40,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 16:15:40,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-16 16:15:40,552 INFO L87 Difference]: Start difference. First operand 14113 states and 40180 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 16:15:41,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:15:41,508 INFO L93 Difference]: Finished difference Result 18702 states and 50906 transitions. [2022-11-16 16:15:41,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 16:15:41,509 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 20 [2022-11-16 16:15:41,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:15:41,545 INFO L225 Difference]: With dead ends: 18702 [2022-11-16 16:15:41,545 INFO L226 Difference]: Without dead ends: 18702 [2022-11-16 16:15:41,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-11-16 16:15:41,546 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 502 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 16:15:41,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 299 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 16:15:41,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18702 states. [2022-11-16 16:15:42,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18702 to 14651. [2022-11-16 16:15:42,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14651 states, 14585 states have (on average 2.867740829619472) internal successors, (41826), 14650 states have internal predecessors, (41826), 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 16:15:42,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14651 states to 14651 states and 41826 transitions. [2022-11-16 16:15:42,139 INFO L78 Accepts]: Start accepts. Automaton has 14651 states and 41826 transitions. Word has length 20 [2022-11-16 16:15:42,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:15:42,139 INFO L495 AbstractCegarLoop]: Abstraction has 14651 states and 41826 transitions. [2022-11-16 16:15:42,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 16:15:42,139 INFO L276 IsEmpty]: Start isEmpty. Operand 14651 states and 41826 transitions. [2022-11-16 16:15:42,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-16 16:15:42,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:15:42,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:15:42,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 16:15:42,142 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-16 16:15:42,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:15:42,143 INFO L85 PathProgramCache]: Analyzing trace with hash 104903150, now seen corresponding path program 2 times [2022-11-16 16:15:42,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:15:42,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132743835] [2022-11-16 16:15:42,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:15:42,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:15:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:15:42,767 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 16:15:42,768 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:15:42,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132743835] [2022-11-16 16:15:42,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132743835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:15:42,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:15:42,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 16:15:42,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675198010] [2022-11-16 16:15:42,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:15:42,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 16:15:42,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:15:42,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 16:15:42,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-16 16:15:42,769 INFO L87 Difference]: Start difference. First operand 14651 states and 41826 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 16:15:43,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:15:43,849 INFO L93 Difference]: Finished difference Result 21372 states and 58803 transitions. [2022-11-16 16:15:43,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 16:15:43,850 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 20 [2022-11-16 16:15:43,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:15:43,926 INFO L225 Difference]: With dead ends: 21372 [2022-11-16 16:15:43,927 INFO L226 Difference]: Without dead ends: 21372 [2022-11-16 16:15:43,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-11-16 16:15:43,929 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 472 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 16:15:43,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 437 Invalid, 939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 16:15:43,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21372 states. [2022-11-16 16:15:44,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21372 to 15207. [2022-11-16 16:15:44,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15207 states, 15141 states have (on average 2.87391849943861) internal successors, (43514), 15206 states have internal predecessors, (43514), 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 16:15:44,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15207 states to 15207 states and 43514 transitions. [2022-11-16 16:15:44,498 INFO L78 Accepts]: Start accepts. Automaton has 15207 states and 43514 transitions. Word has length 20 [2022-11-16 16:15:44,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:15:44,498 INFO L495 AbstractCegarLoop]: Abstraction has 15207 states and 43514 transitions. [2022-11-16 16:15:44,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 16:15:44,498 INFO L276 IsEmpty]: Start isEmpty. Operand 15207 states and 43514 transitions. [2022-11-16 16:15:44,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-16 16:15:44,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:15:44,501 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:15:44,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 16:15:44,502 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-16 16:15:44,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:15:44,503 INFO L85 PathProgramCache]: Analyzing trace with hash 960692966, now seen corresponding path program 3 times [2022-11-16 16:15:44,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:15:44,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128674104] [2022-11-16 16:15:44,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:15:44,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:15:44,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:15:44,910 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 16:15:44,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:15:44,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128674104] [2022-11-16 16:15:44,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128674104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:15:44,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:15:44,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 16:15:44,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87671856] [2022-11-16 16:15:44,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:15:44,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 16:15:44,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:15:44,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 16:15:44,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-16 16:15:44,913 INFO L87 Difference]: Start difference. First operand 15207 states and 43514 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 16:15:46,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:15:46,120 INFO L93 Difference]: Finished difference Result 24042 states and 66730 transitions. [2022-11-16 16:15:46,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 16:15:46,120 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 20 [2022-11-16 16:15:46,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:15:46,175 INFO L225 Difference]: With dead ends: 24042 [2022-11-16 16:15:46,175 INFO L226 Difference]: Without dead ends: 24042 [2022-11-16 16:15:46,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=113, Unknown=0, NotChecked=0, Total=182 [2022-11-16 16:15:46,176 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 544 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:15:46,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 424 Invalid, 972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 16:15:46,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24042 states. [2022-11-16 16:15:46,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24042 to 15763. [2022-11-16 16:15:46,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15763 states, 15697 states have (on average 2.8796585334777345) internal successors, (45202), 15762 states have internal predecessors, (45202), 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 16:15:46,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15763 states to 15763 states and 45202 transitions. [2022-11-16 16:15:46,724 INFO L78 Accepts]: Start accepts. Automaton has 15763 states and 45202 transitions. Word has length 20 [2022-11-16 16:15:46,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:15:46,724 INFO L495 AbstractCegarLoop]: Abstraction has 15763 states and 45202 transitions. [2022-11-16 16:15:46,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 16:15:46,724 INFO L276 IsEmpty]: Start isEmpty. Operand 15763 states and 45202 transitions. [2022-11-16 16:15:46,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-16 16:15:46,727 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:15:46,727 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:15:46,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 16:15:46,728 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-16 16:15:46,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:15:46,728 INFO L85 PathProgramCache]: Analyzing trace with hash 928868914, now seen corresponding path program 4 times [2022-11-16 16:15:46,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:15:46,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313784775] [2022-11-16 16:15:46,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:15:46,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:15:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:15:47,297 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 16:15:47,298 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:15:47,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313784775] [2022-11-16 16:15:47,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313784775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:15:47,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:15:47,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 16:15:47,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454021298] [2022-11-16 16:15:47,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:15:47,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 16:15:47,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:15:47,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 16:15:47,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-16 16:15:47,300 INFO L87 Difference]: Start difference. First operand 15763 states and 45202 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 16:15:48,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:15:48,483 INFO L93 Difference]: Finished difference Result 26712 states and 74657 transitions. [2022-11-16 16:15:48,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 16:15:48,484 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 20 [2022-11-16 16:15:48,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:15:48,568 INFO L225 Difference]: With dead ends: 26712 [2022-11-16 16:15:48,568 INFO L226 Difference]: Without dead ends: 26712 [2022-11-16 16:15:48,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-11-16 16:15:48,569 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 541 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 16:15:48,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 430 Invalid, 995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 16:15:48,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26712 states. [2022-11-16 16:15:49,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26712 to 16319. [2022-11-16 16:15:49,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16319 states, 16253 states have (on average 2.8850058450747555) internal successors, (46890), 16318 states have internal predecessors, (46890), 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 16:15:49,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16319 states to 16319 states and 46890 transitions. [2022-11-16 16:15:49,126 INFO L78 Accepts]: Start accepts. Automaton has 16319 states and 46890 transitions. Word has length 20 [2022-11-16 16:15:49,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:15:49,126 INFO L495 AbstractCegarLoop]: Abstraction has 16319 states and 46890 transitions. [2022-11-16 16:15:49,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 16:15:49,127 INFO L276 IsEmpty]: Start isEmpty. Operand 16319 states and 46890 transitions. [2022-11-16 16:15:49,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-16 16:15:49,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:15:49,133 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:15:49,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 16:15:49,133 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-16 16:15:49,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:15:49,134 INFO L85 PathProgramCache]: Analyzing trace with hash 71118892, now seen corresponding path program 5 times [2022-11-16 16:15:49,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:15:49,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460958367] [2022-11-16 16:15:49,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:15:49,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:15:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:15:49,472 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 16:15:49,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:15:49,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460958367] [2022-11-16 16:15:49,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460958367] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:15:49,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:15:49,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 16:15:49,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356889926] [2022-11-16 16:15:49,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:15:49,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 16:15:49,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:15:49,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 16:15:49,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-16 16:15:49,475 INFO L87 Difference]: Start difference. First operand 16319 states and 46890 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 16:15:50,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:15:50,198 INFO L93 Difference]: Finished difference Result 19876 states and 57410 transitions. [2022-11-16 16:15:50,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 16:15:50,199 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 20 [2022-11-16 16:15:50,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:15:50,241 INFO L225 Difference]: With dead ends: 19876 [2022-11-16 16:15:50,241 INFO L226 Difference]: Without dead ends: 19876 [2022-11-16 16:15:50,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-11-16 16:15:50,242 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 437 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 16:15:50,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 240 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 16:15:50,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19876 states. [2022-11-16 16:15:50,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19876 to 8793. [2022-11-16 16:15:50,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8793 states, 8757 states have (on average 2.794906931597579) internal successors, (24475), 8792 states have internal predecessors, (24475), 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 16:15:50,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8793 states to 8793 states and 24475 transitions. [2022-11-16 16:15:50,448 INFO L78 Accepts]: Start accepts. Automaton has 8793 states and 24475 transitions. Word has length 20 [2022-11-16 16:15:50,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:15:50,448 INFO L495 AbstractCegarLoop]: Abstraction has 8793 states and 24475 transitions. [2022-11-16 16:15:50,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 16:15:50,448 INFO L276 IsEmpty]: Start isEmpty. Operand 8793 states and 24475 transitions. [2022-11-16 16:15:50,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-16 16:15:50,450 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:15:50,450 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:15:50,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 16:15:50,451 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-16 16:15:50,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:15:50,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1159727610, now seen corresponding path program 1 times [2022-11-16 16:15:50,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:15:50,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667708018] [2022-11-16 16:15:50,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:15:50,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:15:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:15:50,801 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 16:15:50,801 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:15:50,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667708018] [2022-11-16 16:15:50,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667708018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:15:50,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:15:50,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 16:15:50,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503072515] [2022-11-16 16:15:50,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:15:50,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 16:15:50,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:15:50,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 16:15:50,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-16 16:15:50,804 INFO L87 Difference]: Start difference. First operand 8793 states and 24475 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 16:15:51,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:15:51,472 INFO L93 Difference]: Finished difference Result 9465 states and 26439 transitions. [2022-11-16 16:15:51,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 16:15:51,473 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 20 [2022-11-16 16:15:51,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:15:51,490 INFO L225 Difference]: With dead ends: 9465 [2022-11-16 16:15:51,490 INFO L226 Difference]: Without dead ends: 9465 [2022-11-16 16:15:51,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-11-16 16:15:51,491 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 299 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 16:15:51,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 177 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 16:15:51,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9465 states. [2022-11-16 16:15:51,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9465 to 8643. [2022-11-16 16:15:51,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8643 states, 8611 states have (on average 2.8051329694576705) internal successors, (24155), 8642 states have internal predecessors, (24155), 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 16:15:51,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8643 states to 8643 states and 24155 transitions. [2022-11-16 16:15:51,643 INFO L78 Accepts]: Start accepts. Automaton has 8643 states and 24155 transitions. Word has length 20 [2022-11-16 16:15:51,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:15:51,643 INFO L495 AbstractCegarLoop]: Abstraction has 8643 states and 24155 transitions. [2022-11-16 16:15:51,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 16:15:51,644 INFO L276 IsEmpty]: Start isEmpty. Operand 8643 states and 24155 transitions. [2022-11-16 16:15:51,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 16:15:51,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:15:51,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:15:51,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 16:15:51,647 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-16 16:15:51,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:15:51,647 INFO L85 PathProgramCache]: Analyzing trace with hash 696935121, now seen corresponding path program 1 times [2022-11-16 16:15:51,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:15:51,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507679724] [2022-11-16 16:15:51,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:15:51,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:15:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:15:51,678 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 16:15:51,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:15:51,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507679724] [2022-11-16 16:15:51,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507679724] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:15:51,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:15:51,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:15:51,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592542392] [2022-11-16 16:15:51,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:15:51,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:15:51,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:15:51,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:15:51,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:15:51,681 INFO L87 Difference]: Start difference. First operand 8643 states and 24155 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 16:15:51,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:15:51,821 INFO L93 Difference]: Finished difference Result 8774 states and 24531 transitions. [2022-11-16 16:15:51,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:15:51,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2022-11-16 16:15:51,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:15:51,838 INFO L225 Difference]: With dead ends: 8774 [2022-11-16 16:15:51,838 INFO L226 Difference]: Without dead ends: 8774 [2022-11-16 16:15:51,839 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 16:15:51,839 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 37 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:15:51,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 74 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:15:51,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8774 states. [2022-11-16 16:15:51,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8774 to 8774. [2022-11-16 16:15:51,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8774 states, 8746 states have (on average 2.804825062885891) internal successors, (24531), 8773 states have internal predecessors, (24531), 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 16:15:51,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8774 states to 8774 states and 24531 transitions. [2022-11-16 16:15:51,966 INFO L78 Accepts]: Start accepts. Automaton has 8774 states and 24531 transitions. Word has length 22 [2022-11-16 16:15:51,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:15:51,966 INFO L495 AbstractCegarLoop]: Abstraction has 8774 states and 24531 transitions. [2022-11-16 16:15:51,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 16:15:51,966 INFO L276 IsEmpty]: Start isEmpty. Operand 8774 states and 24531 transitions. [2022-11-16 16:15:51,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-16 16:15:51,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:15:51,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:15:51,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 16:15:51,970 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-16 16:15:51,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:15:51,970 INFO L85 PathProgramCache]: Analyzing trace with hash 698459154, now seen corresponding path program 1 times [2022-11-16 16:15:51,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:15:51,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610012114] [2022-11-16 16:15:51,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:15:51,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:15:51,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:15:52,038 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 16:15:52,039 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:15:52,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610012114] [2022-11-16 16:15:52,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610012114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:15:52,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:15:52,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:15:52,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888282886] [2022-11-16 16:15:52,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:15:52,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:15:52,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:15:52,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:15:52,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:15:52,041 INFO L87 Difference]: Start difference. First operand 8774 states and 24531 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 16:15:52,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:15:52,112 INFO L93 Difference]: Finished difference Result 1529 states and 3796 transitions. [2022-11-16 16:15:52,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:15:52,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 27 [2022-11-16 16:15:52,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:15:52,115 INFO L225 Difference]: With dead ends: 1529 [2022-11-16 16:15:52,115 INFO L226 Difference]: Without dead ends: 1529 [2022-11-16 16:15:52,116 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 16:15:52,116 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 60 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:15:52,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 50 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:15:52,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2022-11-16 16:15:52,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1321. [2022-11-16 16:15:52,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1321 states, 1316 states have (on average 2.4498480243161094) internal successors, (3224), 1320 states have internal predecessors, (3224), 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 16:15:52,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 3224 transitions. [2022-11-16 16:15:52,140 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 3224 transitions. Word has length 27 [2022-11-16 16:15:52,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:15:52,140 INFO L495 AbstractCegarLoop]: Abstraction has 1321 states and 3224 transitions. [2022-11-16 16:15:52,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 16:15:52,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 3224 transitions. [2022-11-16 16:15:52,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-16 16:15:52,144 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:15:52,144 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:15:52,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 16:15:52,144 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-16 16:15:52,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:15:52,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1254692493, now seen corresponding path program 1 times [2022-11-16 16:15:52,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:15:52,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313980599] [2022-11-16 16:15:52,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:15:52,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:15:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:15:52,239 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:15:52,239 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:15:52,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313980599] [2022-11-16 16:15:52,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313980599] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:15:52,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383483921] [2022-11-16 16:15:52,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:15:52,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:15:52,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:15:52,246 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:15:52,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 16:15:52,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:15:52,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 16:15:52,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:15:52,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:15:52,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:15:52,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:15:52,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383483921] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:15:52,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1366988226] [2022-11-16 16:15:52,738 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-16 16:15:52,745 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 16:15:52,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-16 16:15:52,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068006586] [2022-11-16 16:15:52,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 16:15:52,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 16:15:52,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:15:52,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 16:15:52,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-16 16:15:52,751 INFO L87 Difference]: Start difference. First operand 1321 states and 3224 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 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 16:15:52,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:15:52,982 INFO L93 Difference]: Finished difference Result 3430 states and 8169 transitions. [2022-11-16 16:15:52,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 16:15:52,982 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 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 37 [2022-11-16 16:15:52,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:15:52,990 INFO L225 Difference]: With dead ends: 3430 [2022-11-16 16:15:52,990 INFO L226 Difference]: Without dead ends: 3430 [2022-11-16 16:15:52,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-16 16:15:52,993 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 215 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 16:15:52,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 199 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 16:15:53,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3430 states. [2022-11-16 16:15:53,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3430 to 3402. [2022-11-16 16:15:53,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3402 states, 3395 states have (on average 2.3991163475699557) internal successors, (8145), 3401 states have internal predecessors, (8145), 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 16:15:53,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3402 states to 3402 states and 8145 transitions. [2022-11-16 16:15:53,074 INFO L78 Accepts]: Start accepts. Automaton has 3402 states and 8145 transitions. Word has length 37 [2022-11-16 16:15:53,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:15:53,075 INFO L495 AbstractCegarLoop]: Abstraction has 3402 states and 8145 transitions. [2022-11-16 16:15:53,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 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 16:15:53,075 INFO L276 IsEmpty]: Start isEmpty. Operand 3402 states and 8145 transitions. [2022-11-16 16:15:53,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-16 16:15:53,079 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:15:53,079 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:15:53,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 16:15:53,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-16 16:15:53,285 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-16 16:15:53,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:15:53,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1620277286, now seen corresponding path program 1 times [2022-11-16 16:15:53,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:15:53,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368354338] [2022-11-16 16:15:53,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:15:53,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:15:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:15:53,348 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 16:15:53,348 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:15:53,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368354338] [2022-11-16 16:15:53,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368354338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:15:53,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:15:53,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:15:53,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690861171] [2022-11-16 16:15:53,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:15:53,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:15:53,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:15:53,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:15:53,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:15:53,352 INFO L87 Difference]: Start difference. First operand 3402 states and 8145 transitions. Second operand has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 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 16:15:53,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:15:53,450 INFO L93 Difference]: Finished difference Result 3374 states and 8071 transitions. [2022-11-16 16:15:53,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:15:53,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 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 39 [2022-11-16 16:15:53,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:15:53,458 INFO L225 Difference]: With dead ends: 3374 [2022-11-16 16:15:53,459 INFO L226 Difference]: Without dead ends: 3374 [2022-11-16 16:15:53,459 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 16:15:53,460 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 14 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:15:53,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 62 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:15:53,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3374 states. [2022-11-16 16:15:53,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3374 to 3374. [2022-11-16 16:15:53,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3374 states, 3370 states have (on average 2.3949554896142433) internal successors, (8071), 3373 states have internal predecessors, (8071), 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 16:15:53,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3374 states to 3374 states and 8071 transitions. [2022-11-16 16:15:53,538 INFO L78 Accepts]: Start accepts. Automaton has 3374 states and 8071 transitions. Word has length 39 [2022-11-16 16:15:53,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:15:53,540 INFO L495 AbstractCegarLoop]: Abstraction has 3374 states and 8071 transitions. [2022-11-16 16:15:53,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 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 16:15:53,540 INFO L276 IsEmpty]: Start isEmpty. Operand 3374 states and 8071 transitions. [2022-11-16 16:15:53,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-16 16:15:53,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:15:53,547 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:15:53,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 16:15:53,548 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t2Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-16 16:15:53,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:15:53,548 INFO L85 PathProgramCache]: Analyzing trace with hash -2021312676, now seen corresponding path program 1 times [2022-11-16 16:15:53,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:15:53,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173373418] [2022-11-16 16:15:53,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:15:53,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:15:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:15:53,918 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 16:15:53,918 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:15:53,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173373418] [2022-11-16 16:15:53,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173373418] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:15:53,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:15:53,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 16:15:53,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761160240] [2022-11-16 16:15:53,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:15:53,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 16:15:53,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:15:53,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 16:15:53,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 16:15:53,921 INFO L87 Difference]: Start difference. First operand 3374 states and 8071 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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 16:15:54,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:15:54,267 INFO L93 Difference]: Finished difference Result 3346 states and 7997 transitions. [2022-11-16 16:15:54,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 16:15:54,268 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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 48 [2022-11-16 16:15:54,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:15:54,275 INFO L225 Difference]: With dead ends: 3346 [2022-11-16 16:15:54,275 INFO L226 Difference]: Without dead ends: 3296 [2022-11-16 16:15:54,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 16:15:54,278 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 20 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 16:15:54,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 53 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 16:15:54,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3296 states. [2022-11-16 16:15:54,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3296 to 3296. [2022-11-16 16:15:54,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3296 states, 3295 states have (on average 2.3960546282245825) internal successors, (7895), 3295 states have internal predecessors, (7895), 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 16:15:54,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3296 states to 3296 states and 7895 transitions. [2022-11-16 16:15:54,345 INFO L78 Accepts]: Start accepts. Automaton has 3296 states and 7895 transitions. Word has length 48 [2022-11-16 16:15:54,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:15:54,345 INFO L495 AbstractCegarLoop]: Abstraction has 3296 states and 7895 transitions. [2022-11-16 16:15:54,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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 16:15:54,346 INFO L276 IsEmpty]: Start isEmpty. Operand 3296 states and 7895 transitions. [2022-11-16 16:15:54,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-16 16:15:54,353 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:15:54,353 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:15:54,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 16:15:54,354 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-16 16:15:54,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:15:54,354 INFO L85 PathProgramCache]: Analyzing trace with hash -784802000, now seen corresponding path program 1 times [2022-11-16 16:15:54,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:15:54,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897254923] [2022-11-16 16:15:54,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:15:54,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:15:54,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:15:54,513 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 16:15:54,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:15:54,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897254923] [2022-11-16 16:15:54,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897254923] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:15:54,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181544336] [2022-11-16 16:15:54,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:15:54,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:15:54,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:15:54,516 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:15:54,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 16:15:54,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:15:54,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 16:15:54,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:15:54,773 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 16:15:54,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:15:54,849 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 16:15:54,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181544336] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:15:54,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [702291403] [2022-11-16 16:15:54,850 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-16 16:15:54,851 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 16:15:54,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-11-16 16:15:54,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63090289] [2022-11-16 16:15:54,853 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 16:15:54,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 16:15:54,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:15:54,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 16:15:54,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 16:15:54,854 INFO L87 Difference]: Start difference. First operand 3296 states and 7895 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 9 states have internal predecessors, (109), 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 16:15:55,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:15:55,243 INFO L93 Difference]: Finished difference Result 7058 states and 16713 transitions. [2022-11-16 16:15:55,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 16:15:55,244 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 9 states have internal predecessors, (109), 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 52 [2022-11-16 16:15:55,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:15:55,259 INFO L225 Difference]: With dead ends: 7058 [2022-11-16 16:15:55,259 INFO L226 Difference]: Without dead ends: 7058 [2022-11-16 16:15:55,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2022-11-16 16:15:55,260 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 259 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 16:15:55,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 214 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 16:15:55,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7058 states. [2022-11-16 16:15:55,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7058 to 4908. [2022-11-16 16:15:55,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4908 states, 4907 states have (on average 2.3977990625636845) internal successors, (11766), 4907 states have internal predecessors, (11766), 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 16:15:55,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4908 states to 4908 states and 11766 transitions. [2022-11-16 16:15:55,396 INFO L78 Accepts]: Start accepts. Automaton has 4908 states and 11766 transitions. Word has length 52 [2022-11-16 16:15:55,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:15:55,397 INFO L495 AbstractCegarLoop]: Abstraction has 4908 states and 11766 transitions. [2022-11-16 16:15:55,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 9 states have internal predecessors, (109), 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 16:15:55,397 INFO L276 IsEmpty]: Start isEmpty. Operand 4908 states and 11766 transitions. [2022-11-16 16:15:55,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-16 16:15:55,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:15:55,407 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:15:55,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 16:15:55,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-16 16:15:55,612 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-16 16:15:55,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:15:55,613 INFO L85 PathProgramCache]: Analyzing trace with hash -360105327, now seen corresponding path program 1 times [2022-11-16 16:15:55,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:15:55,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625640994] [2022-11-16 16:15:55,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:15:55,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:15:55,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:15:55,861 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:15:55,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:15:55,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625640994] [2022-11-16 16:15:55,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625640994] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:15:55,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132703175] [2022-11-16 16:15:55,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:15:55,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:15:55,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:15:55,867 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:15:55,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 16:15:56,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:15:56,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 16:15:56,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:15:56,199 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-16 16:15:56,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:15:56,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132703175] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:15:56,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 16:15:56,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2022-11-16 16:15:56,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498200575] [2022-11-16 16:15:56,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:15:56,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 16:15:56,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:15:56,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 16:15:56,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-16 16:15:56,203 INFO L87 Difference]: Start difference. First operand 4908 states and 11766 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 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 16:15:56,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:15:56,481 INFO L93 Difference]: Finished difference Result 6866 states and 16252 transitions. [2022-11-16 16:15:56,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 16:15:56,482 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 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 76 [2022-11-16 16:15:56,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:15:56,497 INFO L225 Difference]: With dead ends: 6866 [2022-11-16 16:15:56,498 INFO L226 Difference]: Without dead ends: 6866 [2022-11-16 16:15:56,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-11-16 16:15:56,499 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 130 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 16:15:56,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 173 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 16:15:56,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6866 states. [2022-11-16 16:15:56,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6866 to 5802. [2022-11-16 16:15:56,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5802 states, 5801 states have (on average 2.417514221685916) internal successors, (14024), 5801 states have internal predecessors, (14024), 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 16:15:56,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5802 states to 5802 states and 14024 transitions. [2022-11-16 16:15:56,648 INFO L78 Accepts]: Start accepts. Automaton has 5802 states and 14024 transitions. Word has length 76 [2022-11-16 16:15:56,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:15:56,649 INFO L495 AbstractCegarLoop]: Abstraction has 5802 states and 14024 transitions. [2022-11-16 16:15:56,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 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 16:15:56,649 INFO L276 IsEmpty]: Start isEmpty. Operand 5802 states and 14024 transitions. [2022-11-16 16:15:56,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-16 16:15:56,659 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:15:56,659 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:15:56,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 16:15:56,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:15:56,865 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-16 16:15:56,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:15:56,866 INFO L85 PathProgramCache]: Analyzing trace with hash -920157548, now seen corresponding path program 2 times [2022-11-16 16:15:56,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:15:56,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410469432] [2022-11-16 16:15:56,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:15:56,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:15:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:15:57,102 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:15:57,103 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:15:57,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410469432] [2022-11-16 16:15:57,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410469432] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:15:57,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378709930] [2022-11-16 16:15:57,104 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 16:15:57,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:15:57,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:15:57,105 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:15:57,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 16:15:57,318 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 16:15:57,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 16:15:57,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 16:15:57,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:15:57,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 16:15:57,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:57,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 16:15:57,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:57,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:57,602 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 16:15:57,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-16 16:15:57,627 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-11-16 16:15:57,628 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:15:57,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378709930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:15:57,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 16:15:57,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 11 [2022-11-16 16:15:57,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773139215] [2022-11-16 16:15:57,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:15:57,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 16:15:57,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:15:57,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 16:15:57,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-16 16:15:57,633 INFO L87 Difference]: Start difference. First operand 5802 states and 14024 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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 16:15:57,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:15:57,952 INFO L93 Difference]: Finished difference Result 5749 states and 13912 transitions. [2022-11-16 16:15:57,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 16:15:57,953 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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 82 [2022-11-16 16:15:57,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:15:57,954 INFO L225 Difference]: With dead ends: 5749 [2022-11-16 16:15:57,954 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 16:15:57,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-16 16:15:57,955 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 101 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 16:15:57,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 113 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 16:15:57,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 16:15:57,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 16:15:57,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 16:15:57,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 16:15:57,956 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 82 [2022-11-16 16:15:57,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:15:57,956 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 16:15:57,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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 16:15:57,957 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 16:15:57,957 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 16:15:57,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 26 remaining) [2022-11-16 16:15:57,960 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2022-11-16 16:15:57,960 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 26 remaining) [2022-11-16 16:15:57,960 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 26 remaining) [2022-11-16 16:15:57,960 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2022-11-16 16:15:57,960 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2022-11-16 16:15:57,961 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2022-11-16 16:15:57,961 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2022-11-16 16:15:57,961 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2022-11-16 16:15:57,961 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2022-11-16 16:15:57,961 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2022-11-16 16:15:57,961 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2022-11-16 16:15:57,962 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2022-11-16 16:15:57,962 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2022-11-16 16:15:57,962 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2022-11-16 16:15:57,964 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2022-11-16 16:15:57,964 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2022-11-16 16:15:57,964 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2022-11-16 16:15:57,964 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2022-11-16 16:15:57,964 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2022-11-16 16:15:57,965 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2022-11-16 16:15:57,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2022-11-16 16:15:57,967 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2022-11-16 16:15:57,968 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2022-11-16 16:15:57,968 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2022-11-16 16:15:57,968 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2022-11-16 16:15:57,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 16:15:58,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:15:58,176 INFO L444 BasicCegarLoop]: Path program histogram: [5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:15:58,181 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 16:15:58,181 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 16:15:58,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:15:58 BasicIcfg [2022-11-16 16:15:58,184 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 16:15:58,184 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 16:15:58,184 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 16:15:58,185 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 16:15:58,185 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:15:25" (3/4) ... [2022-11-16 16:15:58,188 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 16:15:58,194 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2022-11-16 16:15:58,194 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2022-11-16 16:15:58,198 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-16 16:15:58,198 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-16 16:15:58,199 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 16:15:58,199 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 16:15:58,234 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 16:15:58,235 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 16:15:58,235 INFO L158 Benchmark]: Toolchain (without parser) took 34044.40ms. Allocated memory was 132.1MB in the beginning and 7.5GB in the end (delta: 7.4GB). Free memory was 94.4MB in the beginning and 6.2GB in the end (delta: -6.1GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2022-11-16 16:15:58,235 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 132.1MB. Free memory is still 113.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 16:15:58,236 INFO L158 Benchmark]: CACSL2BoogieTranslator took 771.87ms. Allocated memory is still 132.1MB. Free memory was 94.2MB in the beginning and 88.5MB in the end (delta: 5.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 16:15:58,236 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.31ms. Allocated memory is still 132.1MB. Free memory was 88.5MB in the beginning and 85.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 16:15:58,236 INFO L158 Benchmark]: Boogie Preprocessor took 34.65ms. Allocated memory is still 132.1MB. Free memory was 85.5MB in the beginning and 83.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 16:15:58,237 INFO L158 Benchmark]: RCFGBuilder took 700.18ms. Allocated memory is still 132.1MB. Free memory was 83.4MB in the beginning and 62.0MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-16 16:15:58,237 INFO L158 Benchmark]: TraceAbstraction took 32424.52ms. Allocated memory was 132.1MB in the beginning and 7.5GB in the end (delta: 7.4GB). Free memory was 61.3MB in the beginning and 6.2GB in the end (delta: -6.2GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2022-11-16 16:15:58,238 INFO L158 Benchmark]: Witness Printer took 50.40ms. Allocated memory is still 7.5GB. Free memory was 6.2GB in the beginning and 6.2GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 16:15:58,239 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 132.1MB. Free memory is still 113.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 771.87ms. Allocated memory is still 132.1MB. Free memory was 94.2MB in the beginning and 88.5MB in the end (delta: 5.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.31ms. Allocated memory is still 132.1MB. Free memory was 88.5MB in the beginning and 85.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.65ms. Allocated memory is still 132.1MB. Free memory was 85.5MB in the beginning and 83.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 700.18ms. Allocated memory is still 132.1MB. Free memory was 83.4MB in the beginning and 62.0MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 32424.52ms. Allocated memory was 132.1MB in the beginning and 7.5GB in the end (delta: 7.4GB). Free memory was 61.3MB in the beginning and 6.2GB in the end (delta: -6.2GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. * Witness Printer took 50.40ms. Allocated memory is still 7.5GB. Free memory was 6.2GB in the beginning and 6.2GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.3s, 224 PlacesBefore, 86 PlacesAfterwards, 227 TransitionsBefore, 85 TransitionsAfterwards, 17640 CoEnabledTransitionPairs, 6 FixpointIterations, 39 TrivialSequentialCompositions, 94 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 29 ConcurrentYvCompositions, 4 ChoiceCompositions, 166 TotalNumberOfCompositions, 62126 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 28270, independent: 27377, independent conditional: 0, independent unconditional: 27377, dependent: 893, dependent conditional: 0, dependent unconditional: 893, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12841, independent: 12610, independent conditional: 0, independent unconditional: 12610, dependent: 231, dependent conditional: 0, dependent unconditional: 231, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12841, independent: 12464, independent conditional: 0, independent unconditional: 12464, dependent: 377, dependent conditional: 0, dependent unconditional: 377, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 377, independent: 146, independent conditional: 0, independent unconditional: 146, dependent: 231, dependent conditional: 0, dependent unconditional: 231, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 842, independent: 315, independent conditional: 0, independent unconditional: 315, dependent: 527, dependent conditional: 0, dependent unconditional: 527, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 28270, independent: 14767, independent conditional: 0, independent unconditional: 14767, dependent: 662, dependent conditional: 0, dependent unconditional: 662, unknown: 12841, unknown conditional: 0, unknown unconditional: 12841] , Statistics on independence cache: Total cache size (in pairs): 2109, Positive cache size: 1989, Positive conditional cache size: 0, Positive unconditional cache size: 1989, Negative cache size: 120, Negative conditional cache size: 0, Negative unconditional cache size: 120, 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 - PositiveResult [Line: 1023]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1024]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 961]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 953]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 968]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 945]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 945]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1008]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 975]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 949]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 949]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 953]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 983]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 370 locations, 26 error locations. Started 1 CEGAR loops. OverallTime: 32.2s, OverallIterations: 20, TraceHistogramMax: 4, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.1s, AutomataDifference: 10.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4152 SdHoareTripleChecker+Valid, 7.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4152 mSDsluCounter, 3621 SdHoareTripleChecker+Invalid, 6.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2202 mSDsCounter, 693 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6996 IncrementalHoareTripleChecker+Invalid, 7689 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 693 mSolverCounterUnsat, 1419 mSDtfsCounter, 6996 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 463 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16319occurred in iteration=10, InterpolantAutomatonStates: 125, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.4s AutomataMinimizationTime, 20 MinimizatonAttempts, 55535 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 822 NumberOfCodeBlocks, 749 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 885 ConstructedInterpolants, 0 QuantifiedInterpolants, 4094 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1326 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 26 InterpolantComputations, 18 PerfectInterpolantSequences, 203/331 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 - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 16:15:58,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65398f1f-0693-4822-a7f2-4402a2b3d8e1/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE