./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/17_szymanski.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7f760c-412d-4d0b-aedf-5ab385821a82/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7f760c-412d-4d0b-aedf-5ab385821a82/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7f760c-412d-4d0b-aedf-5ab385821a82/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7f760c-412d-4d0b-aedf-5ab385821a82/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/17_szymanski.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7f760c-412d-4d0b-aedf-5ab385821a82/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7f760c-412d-4d0b-aedf-5ab385821a82/bin/uautomizer-tPACEb0tL8 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9d000bd3a81a7401f4ccb21c2696e2644e9236d2ccbd2094291c987ec91aaa92 --- 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 12:20:25,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:20:25,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:20:25,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:20:25,603 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:20:25,607 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:20:25,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:20:25,612 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:20:25,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:20:25,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:20:25,623 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:20:25,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:20:25,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:20:25,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:20:25,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:20:25,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:20:25,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:20:25,639 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:20:25,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:20:25,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:20:25,648 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:20:25,650 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:20:25,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:20:25,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:20:25,659 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:20:25,662 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:20:25,662 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:20:25,663 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:20:25,664 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:20:25,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:20:25,667 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:20:25,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:20:25,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:20:25,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:20:25,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:20:25,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:20:25,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:20:25,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:20:25,676 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:20:25,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:20:25,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:20:25,678 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7f760c-412d-4d0b-aedf-5ab385821a82/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:20:25,719 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:20:25,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:20:25,720 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:20:25,720 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:20:25,721 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:20:25,721 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:20:25,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:20:25,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:20:25,722 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:20:25,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:20:25,723 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:20:25,724 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:20:25,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:20:25,724 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:20:25,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:20:25,725 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:20:25,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:20:25,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:20:25,725 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:20:25,725 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:20:25,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:20:25,726 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:20:25,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:20:25,726 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:20:25,726 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:20:25,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:20:25,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:20:25,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:20:25,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:20:25,729 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:20:25,729 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:20:25,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:20:25,730 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:20:25,730 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:20:25,731 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:20:25,731 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_4f7f760c-412d-4d0b-aedf-5ab385821a82/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7f760c-412d-4d0b-aedf-5ab385821a82/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d000bd3a81a7401f4ccb21c2696e2644e9236d2ccbd2094291c987ec91aaa92 [2022-11-16 12:20:26,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:20:26,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:20:26,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:20:26,064 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:20:26,065 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:20:26,067 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7f760c-412d-4d0b-aedf-5ab385821a82/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-ext/17_szymanski.i [2022-11-16 12:20:26,157 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7f760c-412d-4d0b-aedf-5ab385821a82/bin/uautomizer-tPACEb0tL8/data/b3939df6a/3a4a37d9c1e543d5927c9d3f22175011/FLAG9a9a21150 [2022-11-16 12:20:26,764 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:20:26,764 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7f760c-412d-4d0b-aedf-5ab385821a82/sv-benchmarks/c/pthread-ext/17_szymanski.i [2022-11-16 12:20:26,791 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7f760c-412d-4d0b-aedf-5ab385821a82/bin/uautomizer-tPACEb0tL8/data/b3939df6a/3a4a37d9c1e543d5927c9d3f22175011/FLAG9a9a21150 [2022-11-16 12:20:27,028 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7f760c-412d-4d0b-aedf-5ab385821a82/bin/uautomizer-tPACEb0tL8/data/b3939df6a/3a4a37d9c1e543d5927c9d3f22175011 [2022-11-16 12:20:27,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:20:27,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:20:27,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:20:27,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:20:27,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:20:27,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:20:27" (1/1) ... [2022-11-16 12:20:27,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b282549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:27, skipping insertion in model container [2022-11-16 12:20:27,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:20:27" (1/1) ... [2022-11-16 12:20:27,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:20:27,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:20:27,604 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_4f7f760c-412d-4d0b-aedf-5ab385821a82/sv-benchmarks/c/pthread-ext/17_szymanski.i[30132,30145] [2022-11-16 12:20:27,614 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_4f7f760c-412d-4d0b-aedf-5ab385821a82/sv-benchmarks/c/pthread-ext/17_szymanski.i[30481,30494] [2022-11-16 12:20:27,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:20:27,638 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:20:27,693 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_4f7f760c-412d-4d0b-aedf-5ab385821a82/sv-benchmarks/c/pthread-ext/17_szymanski.i[30132,30145] [2022-11-16 12:20:27,697 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_4f7f760c-412d-4d0b-aedf-5ab385821a82/sv-benchmarks/c/pthread-ext/17_szymanski.i[30481,30494] [2022-11-16 12:20:27,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:20:27,743 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:20:27,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:27 WrapperNode [2022-11-16 12:20:27,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:20:27,745 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:20:27,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:20:27,746 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:20:27,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:27" (1/1) ... [2022-11-16 12:20:27,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:27" (1/1) ... [2022-11-16 12:20:27,835 INFO L138 Inliner]: procedures = 167, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 104 [2022-11-16 12:20:27,836 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:20:27,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:20:27,837 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:20:27,838 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:20:27,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:27" (1/1) ... [2022-11-16 12:20:27,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:27" (1/1) ... [2022-11-16 12:20:27,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:27" (1/1) ... [2022-11-16 12:20:27,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:27" (1/1) ... [2022-11-16 12:20:27,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:27" (1/1) ... [2022-11-16 12:20:27,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:27" (1/1) ... [2022-11-16 12:20:27,881 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:27" (1/1) ... [2022-11-16 12:20:27,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:27" (1/1) ... [2022-11-16 12:20:27,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:20:27,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:20:27,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:20:27,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:20:27,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:27" (1/1) ... [2022-11-16 12:20:27,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:20:27,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7f760c-412d-4d0b-aedf-5ab385821a82/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:20:27,951 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7f760c-412d-4d0b-aedf-5ab385821a82/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:20:27,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7f760c-412d-4d0b-aedf-5ab385821a82/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:20:28,007 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-16 12:20:28,010 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-16 12:20:28,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:20:28,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:20:28,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:20:28,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:20:28,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:20:28,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:20:28,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:20:28,014 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:20:28,212 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:20:28,214 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:20:28,701 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:20:28,713 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:20:28,713 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-11-16 12:20:28,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:20:28 BoogieIcfgContainer [2022-11-16 12:20:28,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:20:28,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:20:28,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:20:28,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:20:28,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:20:27" (1/3) ... [2022-11-16 12:20:28,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac1c749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:20:28, skipping insertion in model container [2022-11-16 12:20:28,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:27" (2/3) ... [2022-11-16 12:20:28,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac1c749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:20:28, skipping insertion in model container [2022-11-16 12:20:28,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:20:28" (3/3) ... [2022-11-16 12:20:28,728 INFO L112 eAbstractionObserver]: Analyzing ICFG 17_szymanski.i [2022-11-16 12:20:28,738 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:20:28,751 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:20:28,752 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-11-16 12:20:28,752 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:20:28,849 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 12:20:28,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 187 places, 209 transitions, 423 flow [2022-11-16 12:20:29,077 INFO L130 PetriNetUnfolder]: 26/208 cut-off events. [2022-11-16 12:20:29,078 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:20:29,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 208 events. 26/208 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 494 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 188. Up to 3 conditions per place. [2022-11-16 12:20:29,094 INFO L82 GeneralOperation]: Start removeDead. Operand has 187 places, 209 transitions, 423 flow [2022-11-16 12:20:29,111 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 186 places, 208 transitions, 419 flow [2022-11-16 12:20:29,138 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:20:29,149 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=PETRI_NET, 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;@6f00572a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:20:29,150 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2022-11-16 12:20:29,165 INFO L130 PetriNetUnfolder]: 1/35 cut-off events. [2022-11-16 12:20:29,166 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:20:29,166 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:29,195 INFO L209 CegarLoopForPetriNet]: 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] [2022-11-16 12:20:29,195 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 12:20:29,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:29,214 INFO L85 PathProgramCache]: Analyzing trace with hash 840585705, now seen corresponding path program 1 times [2022-11-16 12:20:29,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:29,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654768828] [2022-11-16 12:20:29,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:29,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:29,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:29,588 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 12:20:29,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:29,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654768828] [2022-11-16 12:20:29,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654768828] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:29,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:29,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:20:29,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559088436] [2022-11-16 12:20:29,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:29,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:20:29,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:29,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:20:29,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:20:29,661 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 209 [2022-11-16 12:20:29,666 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 208 transitions, 419 flow. Second operand has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 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 12:20:29,666 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:29,666 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 209 [2022-11-16 12:20:29,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:30,213 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([484] L707-4-->L707-1: Formula: (= |v_#race~flag1~0_22| 0) InVars {} OutVars{#race~flag1~0=|v_#race~flag1~0_22|} AuxVars[] AssignedVars[#race~flag1~0][51], [161#thr1Err12ASSERT_VIOLATIONDATA_RACEtrue, 190#true, 86#L707-1true, thr1Thread1of1ForFork0InUse]) [2022-11-16 12:20:30,213 INFO L383 tUnfolder$Statistics]: this new event has 125 ancestors and is cut-off event [2022-11-16 12:20:30,213 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-16 12:20:30,214 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-16 12:20:30,214 INFO L386 tUnfolder$Statistics]: existing Event has 122 ancestors and is cut-off event [2022-11-16 12:20:30,214 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([484] L707-4-->L707-1: Formula: (= |v_#race~flag1~0_22| 0) InVars {} OutVars{#race~flag1~0=|v_#race~flag1~0_22|} AuxVars[] AssignedVars[#race~flag1~0][51], [185#L700-3true, 190#true, 86#L707-1true, thr1Thread1of1ForFork0InUse]) [2022-11-16 12:20:30,215 INFO L383 tUnfolder$Statistics]: this new event has 125 ancestors and is cut-off event [2022-11-16 12:20:30,215 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-16 12:20:30,215 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-16 12:20:30,216 INFO L386 tUnfolder$Statistics]: existing Event has 122 ancestors and is cut-off event [2022-11-16 12:20:30,216 INFO L130 PetriNetUnfolder]: 521/2011 cut-off events. [2022-11-16 12:20:30,216 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:20:30,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2798 conditions, 2011 events. 521/2011 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 13899 event pairs, 264 based on Foata normal form. 165/1638 useless extension candidates. Maximal degree in co-relation 2772. Up to 703 conditions per place. [2022-11-16 12:20:30,238 INFO L137 encePairwiseOnDemand]: 185/209 looper letters, 47 selfloop transitions, 9 changer transitions 0/200 dead transitions. [2022-11-16 12:20:30,239 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 200 transitions, 515 flow [2022-11-16 12:20:30,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:20:30,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:20:30,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 549 transitions. [2022-11-16 12:20:30,266 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8755980861244019 [2022-11-16 12:20:30,267 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 549 transitions. [2022-11-16 12:20:30,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 549 transitions. [2022-11-16 12:20:30,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:30,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 549 transitions. [2022-11-16 12:20:30,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 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 12:20:30,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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 12:20:30,291 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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 12:20:30,293 INFO L175 Difference]: Start difference. First operand has 186 places, 208 transitions, 419 flow. Second operand 3 states and 549 transitions. [2022-11-16 12:20:30,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 200 transitions, 515 flow [2022-11-16 12:20:30,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 200 transitions, 514 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:20:30,311 INFO L231 Difference]: Finished difference. Result has 173 places, 188 transitions, 432 flow [2022-11-16 12:20:30,314 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=432, PETRI_PLACES=173, PETRI_TRANSITIONS=188} [2022-11-16 12:20:30,320 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -13 predicate places. [2022-11-16 12:20:30,321 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 188 transitions, 432 flow [2022-11-16 12:20:30,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 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 12:20:30,321 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:30,322 INFO L209 CegarLoopForPetriNet]: 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] [2022-11-16 12:20:30,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:20:30,324 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 12:20:30,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:30,325 INFO L85 PathProgramCache]: Analyzing trace with hash -2064995272, now seen corresponding path program 1 times [2022-11-16 12:20:30,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:30,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329524008] [2022-11-16 12:20:30,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:30,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:30,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:30,427 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 12:20:30,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:30,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329524008] [2022-11-16 12:20:30,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329524008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:30,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:30,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:20:30,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499368859] [2022-11-16 12:20:30,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:30,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:20:30,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:30,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:20:30,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:20:30,438 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 209 [2022-11-16 12:20:30,442 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 188 transitions, 432 flow. Second operand has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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 12:20:30,443 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:30,443 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 209 [2022-11-16 12:20:30,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:31,186 INFO L130 PetriNetUnfolder]: 846/3636 cut-off events. [2022-11-16 12:20:31,187 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2022-11-16 12:20:31,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5148 conditions, 3636 events. 846/3636 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 30136 event pairs, 94 based on Foata normal form. 0/2759 useless extension candidates. Maximal degree in co-relation 5121. Up to 586 conditions per place. [2022-11-16 12:20:31,212 INFO L137 encePairwiseOnDemand]: 186/209 looper letters, 44 selfloop transitions, 17 changer transitions 0/215 dead transitions. [2022-11-16 12:20:31,212 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 215 transitions, 608 flow [2022-11-16 12:20:31,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:20:31,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:20:31,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 544 transitions. [2022-11-16 12:20:31,214 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8676236044657097 [2022-11-16 12:20:31,214 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 544 transitions. [2022-11-16 12:20:31,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 544 transitions. [2022-11-16 12:20:31,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:31,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 544 transitions. [2022-11-16 12:20:31,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 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 12:20:31,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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 12:20:31,220 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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 12:20:31,220 INFO L175 Difference]: Start difference. First operand has 173 places, 188 transitions, 432 flow. Second operand 3 states and 544 transitions. [2022-11-16 12:20:31,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 215 transitions, 608 flow [2022-11-16 12:20:31,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 215 transitions, 590 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:20:31,229 INFO L231 Difference]: Finished difference. Result has 175 places, 205 transitions, 562 flow [2022-11-16 12:20:31,230 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=562, PETRI_PLACES=175, PETRI_TRANSITIONS=205} [2022-11-16 12:20:31,230 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -11 predicate places. [2022-11-16 12:20:31,231 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 205 transitions, 562 flow [2022-11-16 12:20:31,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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 12:20:31,231 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:31,232 INFO L209 CegarLoopForPetriNet]: 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] [2022-11-16 12:20:31,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:20:31,232 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 12:20:31,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:31,233 INFO L85 PathProgramCache]: Analyzing trace with hash -110256442, now seen corresponding path program 1 times [2022-11-16 12:20:31,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:31,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570052095] [2022-11-16 12:20:31,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:31,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:31,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:31,290 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 12:20:31,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:31,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570052095] [2022-11-16 12:20:31,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570052095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:31,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:31,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:20:31,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236750548] [2022-11-16 12:20:31,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:31,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:20:31,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:31,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:20:31,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:20:31,294 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 209 [2022-11-16 12:20:31,295 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 205 transitions, 562 flow. Second operand has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 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 12:20:31,295 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:31,295 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 209 [2022-11-16 12:20:31,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:31,934 INFO L130 PetriNetUnfolder]: 916/3784 cut-off events. [2022-11-16 12:20:31,935 INFO L131 PetriNetUnfolder]: For 982/1113 co-relation queries the response was YES. [2022-11-16 12:20:31,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6459 conditions, 3784 events. 916/3784 cut-off events. For 982/1113 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 31021 event pairs, 227 based on Foata normal form. 6/2975 useless extension candidates. Maximal degree in co-relation 6431. Up to 1138 conditions per place. [2022-11-16 12:20:31,965 INFO L137 encePairwiseOnDemand]: 199/209 looper letters, 70 selfloop transitions, 16 changer transitions 0/237 dead transitions. [2022-11-16 12:20:31,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 237 transitions, 882 flow [2022-11-16 12:20:31,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:20:31,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:20:31,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2022-11-16 12:20:31,971 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8389154704944178 [2022-11-16 12:20:31,971 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 526 transitions. [2022-11-16 12:20:31,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 526 transitions. [2022-11-16 12:20:31,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:31,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 526 transitions. [2022-11-16 12:20:31,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 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 12:20:31,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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 12:20:31,977 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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 12:20:31,977 INFO L175 Difference]: Start difference. First operand has 175 places, 205 transitions, 562 flow. Second operand 3 states and 526 transitions. [2022-11-16 12:20:31,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 237 transitions, 882 flow [2022-11-16 12:20:31,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 237 transitions, 824 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:20:31,989 INFO L231 Difference]: Finished difference. Result has 177 places, 219 transitions, 674 flow [2022-11-16 12:20:31,990 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=674, PETRI_PLACES=177, PETRI_TRANSITIONS=219} [2022-11-16 12:20:31,993 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -9 predicate places. [2022-11-16 12:20:31,993 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 219 transitions, 674 flow [2022-11-16 12:20:31,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 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 12:20:31,994 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:31,994 INFO L209 CegarLoopForPetriNet]: 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] [2022-11-16 12:20:31,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:20:31,995 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 12:20:31,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:31,996 INFO L85 PathProgramCache]: Analyzing trace with hash -8740142, now seen corresponding path program 1 times [2022-11-16 12:20:31,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:31,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586621746] [2022-11-16 12:20:31,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:31,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:32,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:32,088 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 12:20:32,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:32,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586621746] [2022-11-16 12:20:32,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586621746] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:32,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:32,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:20:32,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157113210] [2022-11-16 12:20:32,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:32,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:20:32,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:32,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:20:32,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:20:32,092 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 209 [2022-11-16 12:20:32,093 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 219 transitions, 674 flow. Second operand has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 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 12:20:32,093 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:32,094 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 209 [2022-11-16 12:20:32,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:32,975 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] L689-4-->L689-1: Formula: (= |v_#race~flag2~0_1| 0) InVars {} OutVars{#race~flag2~0=|v_#race~flag2~0_1|} AuxVars[] AssignedVars[#race~flag2~0][47], [208#true, Black: 192#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 83#L689-1true, Black: 196#true, 151#L706-3true, thr1Thread1of1ForFork0InUse, 202#true, Black: 204#(= |ULTIMATE.start_thr2_#t~nondet10#1| |#race~flag2~0|)]) [2022-11-16 12:20:32,975 INFO L383 tUnfolder$Statistics]: this new event has 127 ancestors and is cut-off event [2022-11-16 12:20:32,975 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2022-11-16 12:20:32,977 INFO L386 tUnfolder$Statistics]: existing Event has 42 ancestors and is cut-off event [2022-11-16 12:20:32,981 INFO L386 tUnfolder$Statistics]: existing Event has 83 ancestors and is cut-off event [2022-11-16 12:20:32,983 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] L689-4-->L689-1: Formula: (= |v_#race~flag2~0_1| 0) InVars {} OutVars{#race~flag2~0=|v_#race~flag2~0_1|} AuxVars[] AssignedVars[#race~flag2~0][47], [208#true, Black: 192#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 83#L689-1true, 14#L706-4true, Black: 196#true, thr1Thread1of1ForFork0InUse, 202#true, Black: 204#(= |ULTIMATE.start_thr2_#t~nondet10#1| |#race~flag2~0|)]) [2022-11-16 12:20:32,983 INFO L383 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-11-16 12:20:32,983 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is cut-off event [2022-11-16 12:20:32,983 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2022-11-16 12:20:32,983 INFO L386 tUnfolder$Statistics]: existing Event has 84 ancestors and is cut-off event [2022-11-16 12:20:32,987 INFO L130 PetriNetUnfolder]: 1523/5536 cut-off events. [2022-11-16 12:20:32,987 INFO L131 PetriNetUnfolder]: For 896/936 co-relation queries the response was YES. [2022-11-16 12:20:33,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9361 conditions, 5536 events. 1523/5536 cut-off events. For 896/936 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 48159 event pairs, 504 based on Foata normal form. 1/4133 useless extension candidates. Maximal degree in co-relation 9332. Up to 1836 conditions per place. [2022-11-16 12:20:33,096 INFO L137 encePairwiseOnDemand]: 199/209 looper letters, 54 selfloop transitions, 9 changer transitions 0/239 dead transitions. [2022-11-16 12:20:33,101 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 239 transitions, 852 flow [2022-11-16 12:20:33,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:20:33,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:20:33,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 528 transitions. [2022-11-16 12:20:33,105 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8421052631578947 [2022-11-16 12:20:33,105 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 528 transitions. [2022-11-16 12:20:33,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 528 transitions. [2022-11-16 12:20:33,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:33,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 528 transitions. [2022-11-16 12:20:33,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 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 12:20:33,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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 12:20:33,110 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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 12:20:33,110 INFO L175 Difference]: Start difference. First operand has 177 places, 219 transitions, 674 flow. Second operand 3 states and 528 transitions. [2022-11-16 12:20:33,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 239 transitions, 852 flow [2022-11-16 12:20:33,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 239 transitions, 820 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:20:33,120 INFO L231 Difference]: Finished difference. Result has 179 places, 227 transitions, 724 flow [2022-11-16 12:20:33,121 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=724, PETRI_PLACES=179, PETRI_TRANSITIONS=227} [2022-11-16 12:20:33,123 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -7 predicate places. [2022-11-16 12:20:33,123 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 227 transitions, 724 flow [2022-11-16 12:20:33,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 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 12:20:33,124 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:33,124 INFO L209 CegarLoopForPetriNet]: 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] [2022-11-16 12:20:33,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:20:33,125 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 12:20:33,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:33,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1000688815, now seen corresponding path program 1 times [2022-11-16 12:20:33,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:33,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239081547] [2022-11-16 12:20:33,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:33,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:33,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:33,210 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 12:20:33,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:33,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239081547] [2022-11-16 12:20:33,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239081547] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:33,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:33,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:20:33,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601171569] [2022-11-16 12:20:33,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:33,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:20:33,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:33,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:20:33,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:20:33,215 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 209 [2022-11-16 12:20:33,216 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 227 transitions, 724 flow. Second operand has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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 12:20:33,216 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:33,216 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 209 [2022-11-16 12:20:33,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:34,271 INFO L130 PetriNetUnfolder]: 1961/7463 cut-off events. [2022-11-16 12:20:34,271 INFO L131 PetriNetUnfolder]: For 2563/2702 co-relation queries the response was YES. [2022-11-16 12:20:34,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13253 conditions, 7463 events. 1961/7463 cut-off events. For 2563/2702 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 70797 event pairs, 174 based on Foata normal form. 13/5849 useless extension candidates. Maximal degree in co-relation 13223. Up to 1325 conditions per place. [2022-11-16 12:20:34,324 INFO L137 encePairwiseOnDemand]: 186/209 looper letters, 56 selfloop transitions, 29 changer transitions 0/264 dead transitions. [2022-11-16 12:20:34,325 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 264 transitions, 1050 flow [2022-11-16 12:20:34,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:20:34,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:20:34,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 542 transitions. [2022-11-16 12:20:34,327 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8644338118022329 [2022-11-16 12:20:34,327 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 542 transitions. [2022-11-16 12:20:34,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 542 transitions. [2022-11-16 12:20:34,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:34,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 542 transitions. [2022-11-16 12:20:34,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 180.66666666666666) internal successors, (542), 3 states have internal predecessors, (542), 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 12:20:34,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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 12:20:34,332 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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 12:20:34,332 INFO L175 Difference]: Start difference. First operand has 179 places, 227 transitions, 724 flow. Second operand 3 states and 542 transitions. [2022-11-16 12:20:34,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 264 transitions, 1050 flow [2022-11-16 12:20:34,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 264 transitions, 994 flow, removed 12 selfloop flow, removed 2 redundant places. [2022-11-16 12:20:34,348 INFO L231 Difference]: Finished difference. Result has 181 places, 256 transitions, 990 flow [2022-11-16 12:20:34,349 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=694, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=990, PETRI_PLACES=181, PETRI_TRANSITIONS=256} [2022-11-16 12:20:34,352 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -5 predicate places. [2022-11-16 12:20:34,352 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 256 transitions, 990 flow [2022-11-16 12:20:34,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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 12:20:34,353 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:34,353 INFO L209 CegarLoopForPetriNet]: 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] [2022-11-16 12:20:34,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:20:34,354 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 12:20:34,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:34,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1740823615, now seen corresponding path program 1 times [2022-11-16 12:20:34,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:34,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311865757] [2022-11-16 12:20:34,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:34,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:20:34,392 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:20:34,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:20:34,456 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:20:34,457 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:20:34,458 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (39 of 40 remaining) [2022-11-16 12:20:34,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2022-11-16 12:20:34,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2022-11-16 12:20:34,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2022-11-16 12:20:34,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2022-11-16 12:20:34,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2022-11-16 12:20:34,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (33 of 40 remaining) [2022-11-16 12:20:34,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2022-11-16 12:20:34,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2022-11-16 12:20:34,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2022-11-16 12:20:34,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2022-11-16 12:20:34,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2022-11-16 12:20:34,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2022-11-16 12:20:34,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2022-11-16 12:20:34,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2022-11-16 12:20:34,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2022-11-16 12:20:34,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2022-11-16 12:20:34,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2022-11-16 12:20:34,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2022-11-16 12:20:34,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2022-11-16 12:20:34,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 40 remaining) [2022-11-16 12:20:34,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2022-11-16 12:20:34,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2022-11-16 12:20:34,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2022-11-16 12:20:34,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2022-11-16 12:20:34,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2022-11-16 12:20:34,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2022-11-16 12:20:34,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 40 remaining) [2022-11-16 12:20:34,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2022-11-16 12:20:34,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2022-11-16 12:20:34,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2022-11-16 12:20:34,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2022-11-16 12:20:34,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2022-11-16 12:20:34,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2022-11-16 12:20:34,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2022-11-16 12:20:34,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2022-11-16 12:20:34,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2022-11-16 12:20:34,476 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2022-11-16 12:20:34,476 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2022-11-16 12:20:34,476 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2022-11-16 12:20:34,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:20:34,479 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-16 12:20:34,557 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:20:34,557 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:20:34,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:20:34 BasicIcfg [2022-11-16 12:20:34,596 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:20:34,596 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:20:34,596 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:20:34,597 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:20:34,597 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:20:28" (3/4) ... [2022-11-16 12:20:34,600 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:20:34,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:20:34,602 INFO L158 Benchmark]: Toolchain (without parser) took 7568.22ms. Allocated memory was 136.3MB in the beginning and 429.9MB in the end (delta: 293.6MB). Free memory was 102.2MB in the beginning and 308.6MB in the end (delta: -206.4MB). Peak memory consumption was 85.8MB. Max. memory is 16.1GB. [2022-11-16 12:20:34,602 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 90.2MB. Free memory was 43.2MB in the beginning and 43.1MB in the end (delta: 43.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:20:34,603 INFO L158 Benchmark]: CACSL2BoogieTranslator took 709.37ms. Allocated memory is still 136.3MB. Free memory was 101.9MB in the beginning and 102.6MB in the end (delta: -688.8kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 12:20:34,603 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.10ms. Allocated memory is still 136.3MB. Free memory was 102.2MB in the beginning and 100.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:20:34,604 INFO L158 Benchmark]: Boogie Preprocessor took 63.37ms. Allocated memory is still 136.3MB. Free memory was 100.3MB in the beginning and 98.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:20:34,604 INFO L158 Benchmark]: RCFGBuilder took 815.13ms. Allocated memory is still 136.3MB. Free memory was 98.6MB in the beginning and 81.0MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-16 12:20:34,605 INFO L158 Benchmark]: TraceAbstraction took 5876.32ms. Allocated memory was 136.3MB in the beginning and 429.9MB in the end (delta: 293.6MB). Free memory was 80.3MB in the beginning and 308.6MB in the end (delta: -228.3MB). Peak memory consumption was 157.3MB. Max. memory is 16.1GB. [2022-11-16 12:20:34,605 INFO L158 Benchmark]: Witness Printer took 4.43ms. Allocated memory is still 429.9MB. Free memory is still 308.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:20:34,608 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 90.2MB. Free memory was 43.2MB in the beginning and 43.1MB in the end (delta: 43.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 709.37ms. Allocated memory is still 136.3MB. Free memory was 101.9MB in the beginning and 102.6MB in the end (delta: -688.8kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.10ms. Allocated memory is still 136.3MB. Free memory was 102.2MB in the beginning and 100.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.37ms. Allocated memory is still 136.3MB. Free memory was 100.3MB in the beginning and 98.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 815.13ms. Allocated memory is still 136.3MB. Free memory was 98.6MB in the beginning and 81.0MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5876.32ms. Allocated memory was 136.3MB in the beginning and 429.9MB in the end (delta: 293.6MB). Free memory was 80.3MB in the beginning and 308.6MB in the end (delta: -228.3MB). Peak memory consumption was 157.3MB. Max. memory is 16.1GB. * Witness Printer took 4.43ms. Allocated memory is still 429.9MB. Free memory is still 308.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 689]: Data race detected Data race detected The following path leads to a data race: [L685] 0 int x; VAL [x=0] [L684] 0 int flag1 = 0, flag2 = 0; VAL [flag1=0, flag2=0, x=0] [L724] 0 pthread_t t; VAL [flag1=0, flag2=0, t={3:0}, x=0] [L725] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [arg={0:0}, flag1=0, flag2=0, pthread_create(&t, 0, thr1, 0)=-1, t={3:0}, x=0] [L687] COND TRUE 1 1 VAL [arg={0:0}, arg={0:0}, flag1=0, flag2=0, x=0] [L688] 1 flag1 = 1 VAL [arg={0:0}, arg={0:0}, flag1=1, flag2=0, x=0] [L689] 1 flag2 >= 3 VAL [arg={0:0}, arg={0:0}, flag1=1, flag2=0, x=0] [L726] CALL 0 thr2(0) [L705] COND TRUE 0 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, flag1=1, flag2=0, x=0] [L706] 0 flag2 = 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, flag1=1, flag2=1, flag2 = 1=49, x=0] [L689] 1 flag2 >= 3 VAL [arg={0:0}, arg={0:0}, flag1=1, flag2=1, x=0] Now there is a data race on ~flag2~0 between C: flag2 = 1 [706] and C: flag2 >= 3 [689] - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 260 locations, 40 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 71 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 71 mSDsluCounter, 182 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 248 IncrementalHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 182 mSDtfsCounter, 248 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=990occurred in iteration=5, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 196 NumberOfCodeBlocks, 196 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 151 ConstructedInterpolants, 0 QuantifiedInterpolants, 161 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-16 12:20:34,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7f760c-412d-4d0b-aedf-5ab385821a82/bin/uautomizer-tPACEb0tL8/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE