./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 6b4ec56b 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_0827af5b-d160-4f62-b542-f0c0f52c86dd/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0827af5b-d160-4f62-b542-f0c0f52c86dd/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0827af5b-d160-4f62-b542-f0c0f52c86dd/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0827af5b-d160-4f62-b542-f0c0f52c86dd/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/17_szymanski.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0827af5b-d160-4f62-b542-f0c0f52c86dd/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0827af5b-d160-4f62-b542-f0c0f52c86dd/bin/uautomizer-ug76WZFUDN --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-6b4ec56 [2022-11-20 09:28:14,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:28:14,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:28:14,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:28:14,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:28:14,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:28:14,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:28:14,787 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:28:14,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:28:14,790 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:28:14,795 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:28:14,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:28:14,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:28:14,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:28:14,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:28:14,813 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:28:14,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:28:14,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:28:14,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:28:14,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:28:14,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:28:14,833 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:28:14,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:28:14,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:28:14,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:28:14,843 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:28:14,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:28:14,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:28:14,846 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:28:14,847 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:28:14,848 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:28:14,848 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:28:14,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:28:14,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:28:14,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:28:14,853 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:28:14,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:28:14,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:28:14,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:28:14,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:28:14,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:28:14,857 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0827af5b-d160-4f62-b542-f0c0f52c86dd/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 09:28:14,901 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:28:14,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:28:14,902 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:28:14,902 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:28:14,903 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:28:14,903 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:28:14,904 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:28:14,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:28:14,904 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:28:14,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:28:14,906 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:28:14,906 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:28:14,906 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:28:14,906 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:28:14,907 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:28:14,907 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:28:14,907 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:28:14,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:28:14,907 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 09:28:14,908 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:28:14,908 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:28:14,908 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:28:14,908 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:28:14,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:28:14,909 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:28:14,909 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:28:14,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:28:14,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:28:14,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:28:14,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:28:14,910 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:28:14,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:28:14,910 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:28:14,911 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:28:14,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:28:14,911 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_0827af5b-d160-4f62-b542-f0c0f52c86dd/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0827af5b-d160-4f62-b542-f0c0f52c86dd/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d000bd3a81a7401f4ccb21c2696e2644e9236d2ccbd2094291c987ec91aaa92 [2022-11-20 09:28:15,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:28:15,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:28:15,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:28:15,218 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:28:15,218 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:28:15,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0827af5b-d160-4f62-b542-f0c0f52c86dd/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-ext/17_szymanski.i [2022-11-20 09:28:18,342 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:28:18,633 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:28:18,642 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0827af5b-d160-4f62-b542-f0c0f52c86dd/sv-benchmarks/c/pthread-ext/17_szymanski.i [2022-11-20 09:28:18,655 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0827af5b-d160-4f62-b542-f0c0f52c86dd/bin/uautomizer-ug76WZFUDN/data/480e35ffd/ca0b72333ab84870a733074f7337ed3e/FLAGd70c58725 [2022-11-20 09:28:18,669 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0827af5b-d160-4f62-b542-f0c0f52c86dd/bin/uautomizer-ug76WZFUDN/data/480e35ffd/ca0b72333ab84870a733074f7337ed3e [2022-11-20 09:28:18,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:28:18,673 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:28:18,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:28:18,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:28:18,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:28:18,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:18" (1/1) ... [2022-11-20 09:28:18,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@192ed8c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:18, skipping insertion in model container [2022-11-20 09:28:18,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:18" (1/1) ... [2022-11-20 09:28:18,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:28:18,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:28:19,182 WARN L237 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_0827af5b-d160-4f62-b542-f0c0f52c86dd/sv-benchmarks/c/pthread-ext/17_szymanski.i[30132,30145] [2022-11-20 09:28:19,191 WARN L237 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_0827af5b-d160-4f62-b542-f0c0f52c86dd/sv-benchmarks/c/pthread-ext/17_szymanski.i[30481,30494] [2022-11-20 09:28:19,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:28:19,214 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:28:19,261 WARN L237 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_0827af5b-d160-4f62-b542-f0c0f52c86dd/sv-benchmarks/c/pthread-ext/17_szymanski.i[30132,30145] [2022-11-20 09:28:19,273 WARN L237 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_0827af5b-d160-4f62-b542-f0c0f52c86dd/sv-benchmarks/c/pthread-ext/17_szymanski.i[30481,30494] [2022-11-20 09:28:19,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:28:19,328 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:28:19,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:19 WrapperNode [2022-11-20 09:28:19,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:28:19,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:28:19,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:28:19,331 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:28:19,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:19" (1/1) ... [2022-11-20 09:28:19,373 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:19" (1/1) ... [2022-11-20 09:28:19,403 INFO L138 Inliner]: procedures = 167, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 104 [2022-11-20 09:28:19,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:28:19,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:28:19,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:28:19,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:28:19,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:19" (1/1) ... [2022-11-20 09:28:19,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:19" (1/1) ... [2022-11-20 09:28:19,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:19" (1/1) ... [2022-11-20 09:28:19,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:19" (1/1) ... [2022-11-20 09:28:19,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:19" (1/1) ... [2022-11-20 09:28:19,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:19" (1/1) ... [2022-11-20 09:28:19,457 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:19" (1/1) ... [2022-11-20 09:28:19,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:19" (1/1) ... [2022-11-20 09:28:19,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:28:19,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:28:19,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:28:19,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:28:19,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:19" (1/1) ... [2022-11-20 09:28:19,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:28:19,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0827af5b-d160-4f62-b542-f0c0f52c86dd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:19,513 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0827af5b-d160-4f62-b542-f0c0f52c86dd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:19,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0827af5b-d160-4f62-b542-f0c0f52c86dd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:28:19,562 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-20 09:28:19,564 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-20 09:28:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 09:28:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:28:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:28:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:28:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:28:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:28:19,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:28:19,568 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 09:28:19,773 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:28:19,775 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:28:20,118 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:28:20,126 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:28:20,127 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-11-20 09:28:20,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:20 BoogieIcfgContainer [2022-11-20 09:28:20,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:28:20,131 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:28:20,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:28:20,134 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:28:20,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:28:18" (1/3) ... [2022-11-20 09:28:20,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@645ca388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:20, skipping insertion in model container [2022-11-20 09:28:20,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:19" (2/3) ... [2022-11-20 09:28:20,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@645ca388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:20, skipping insertion in model container [2022-11-20 09:28:20,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:20" (3/3) ... [2022-11-20 09:28:20,137 INFO L112 eAbstractionObserver]: Analyzing ICFG 17_szymanski.i [2022-11-20 09:28:20,147 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 09:28:20,173 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:28:20,173 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-11-20 09:28:20,173 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 09:28:20,288 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 09:28:20,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 187 places, 209 transitions, 423 flow [2022-11-20 09:28:20,455 INFO L130 PetriNetUnfolder]: 26/208 cut-off events. [2022-11-20 09:28:20,455 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 09:28:20,469 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. [2022-11-20 09:28:20,469 INFO L82 GeneralOperation]: Start removeDead. Operand has 187 places, 209 transitions, 423 flow [2022-11-20 09:28:20,477 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 186 places, 208 transitions, 419 flow [2022-11-20 09:28:20,490 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:28:20,497 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;@47510859, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:28:20,497 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2022-11-20 09:28:20,507 INFO L130 PetriNetUnfolder]: 1/35 cut-off events. [2022-11-20 09:28:20,507 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 09:28:20,508 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:20,508 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] [2022-11-20 09:28:20,509 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 09:28:20,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:20,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1829552224, now seen corresponding path program 1 times [2022-11-20 09:28:20,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:20,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044428177] [2022-11-20 09:28:20,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:20,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:20,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:20,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:20,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044428177] [2022-11-20 09:28:20,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044428177] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:20,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:20,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:20,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929714561] [2022-11-20 09:28:20,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:20,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:20,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:20,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:20,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:20,865 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 209 [2022-11-20 09:28:20,872 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) [2022-11-20 09:28:20,873 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:20,873 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 209 [2022-11-20 09:28:20,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:21,361 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]) [2022-11-20 09:28:21,362 INFO L383 tUnfolder$Statistics]: this new event has 125 ancestors and is cut-off event [2022-11-20 09:28:21,362 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-20 09:28:21,362 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-20 09:28:21,363 INFO L386 tUnfolder$Statistics]: existing Event has 122 ancestors and is cut-off event [2022-11-20 09:28:21,363 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([484] L707-4-->L707-1: Formula: (= |v_#race~flag1~0_22| 0) InVars {} OutVars{#race~flag1~0=|v_#race~flag1~0_22|} AuxVars[] AssignedVars[#race~flag1~0][51], [185#L700-3true, 190#true, 86#L707-1true, thr1Thread1of1ForFork0InUse]) [2022-11-20 09:28:21,363 INFO L383 tUnfolder$Statistics]: this new event has 125 ancestors and is cut-off event [2022-11-20 09:28:21,363 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-20 09:28:21,364 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-20 09:28:21,364 INFO L386 tUnfolder$Statistics]: existing Event has 122 ancestors and is cut-off event [2022-11-20 09:28:21,364 INFO L130 PetriNetUnfolder]: 521/2011 cut-off events. [2022-11-20 09:28:21,364 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 09:28:21,373 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 13873 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. [2022-11-20 09:28:21,385 INFO L137 encePairwiseOnDemand]: 185/209 looper letters, 47 selfloop transitions, 9 changer transitions 0/200 dead transitions. [2022-11-20 09:28:21,386 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 200 transitions, 515 flow [2022-11-20 09:28:21,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:21,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:21,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 549 transitions. [2022-11-20 09:28:21,408 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8755980861244019 [2022-11-20 09:28:21,409 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 549 transitions. [2022-11-20 09:28:21,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 549 transitions. [2022-11-20 09:28:21,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:21,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 549 transitions. [2022-11-20 09:28:21,422 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) [2022-11-20 09:28:21,431 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) [2022-11-20 09:28:21,432 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) [2022-11-20 09:28:21,434 INFO L175 Difference]: Start difference. First operand has 186 places, 208 transitions, 419 flow. Second operand 3 states and 549 transitions. [2022-11-20 09:28:21,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 200 transitions, 515 flow [2022-11-20 09:28:21,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 200 transitions, 514 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:28:21,448 INFO L231 Difference]: Finished difference. Result has 173 places, 188 transitions, 432 flow [2022-11-20 09:28:21,450 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} [2022-11-20 09:28:21,456 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -13 predicate places. [2022-11-20 09:28:21,457 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 188 transitions, 432 flow [2022-11-20 09:28:21,457 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) [2022-11-20 09:28:21,457 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:21,458 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] [2022-11-20 09:28:21,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:28:21,460 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 09:28:21,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:21,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1054748895, now seen corresponding path program 1 times [2022-11-20 09:28:21,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:21,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936180057] [2022-11-20 09:28:21,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:21,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:21,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:21,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:21,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936180057] [2022-11-20 09:28:21,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936180057] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:21,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:21,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:21,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239779354] [2022-11-20 09:28:21,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:21,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:21,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:21,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:21,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:21,553 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 209 [2022-11-20 09:28:21,553 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) [2022-11-20 09:28:21,554 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:21,554 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 209 [2022-11-20 09:28:21,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:22,134 INFO L130 PetriNetUnfolder]: 846/3636 cut-off events. [2022-11-20 09:28:22,135 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2022-11-20 09:28:22,143 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 30158 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. [2022-11-20 09:28:22,157 INFO L137 encePairwiseOnDemand]: 186/209 looper letters, 44 selfloop transitions, 17 changer transitions 0/215 dead transitions. [2022-11-20 09:28:22,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 215 transitions, 608 flow [2022-11-20 09:28:22,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:22,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:22,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 544 transitions. [2022-11-20 09:28:22,159 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8676236044657097 [2022-11-20 09:28:22,159 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 544 transitions. [2022-11-20 09:28:22,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 544 transitions. [2022-11-20 09:28:22,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:22,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 544 transitions. [2022-11-20 09:28:22,162 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) [2022-11-20 09:28:22,164 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) [2022-11-20 09:28:22,165 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) [2022-11-20 09:28:22,165 INFO L175 Difference]: Start difference. First operand has 173 places, 188 transitions, 432 flow. Second operand 3 states and 544 transitions. [2022-11-20 09:28:22,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 215 transitions, 608 flow [2022-11-20 09:28:22,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 215 transitions, 590 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:22,179 INFO L231 Difference]: Finished difference. Result has 175 places, 205 transitions, 562 flow [2022-11-20 09:28:22,180 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} [2022-11-20 09:28:22,181 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -11 predicate places. [2022-11-20 09:28:22,182 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 205 transitions, 562 flow [2022-11-20 09:28:22,182 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) [2022-11-20 09:28:22,182 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:22,183 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] [2022-11-20 09:28:22,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 09:28:22,183 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)] === [2022-11-20 09:28:22,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:22,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1107204219, now seen corresponding path program 1 times [2022-11-20 09:28:22,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:22,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293584949] [2022-11-20 09:28:22,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:22,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:22,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:22,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:22,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293584949] [2022-11-20 09:28:22,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293584949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:22,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:22,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:22,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557237016] [2022-11-20 09:28:22,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:22,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:22,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:22,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:22,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:22,276 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 209 [2022-11-20 09:28:22,276 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) [2022-11-20 09:28:22,277 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:22,277 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 209 [2022-11-20 09:28:22,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:22,755 INFO L130 PetriNetUnfolder]: 916/3784 cut-off events. [2022-11-20 09:28:22,755 INFO L131 PetriNetUnfolder]: For 982/1113 co-relation queries the response was YES. [2022-11-20 09:28:22,766 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 31057 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. [2022-11-20 09:28:22,782 INFO L137 encePairwiseOnDemand]: 199/209 looper letters, 70 selfloop transitions, 16 changer transitions 0/237 dead transitions. [2022-11-20 09:28:22,783 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 237 transitions, 882 flow [2022-11-20 09:28:22,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:22,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:22,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2022-11-20 09:28:22,785 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8389154704944178 [2022-11-20 09:28:22,785 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 526 transitions. [2022-11-20 09:28:22,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 526 transitions. [2022-11-20 09:28:22,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:22,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 526 transitions. [2022-11-20 09:28:22,787 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) [2022-11-20 09:28:22,788 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) [2022-11-20 09:28:22,789 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) [2022-11-20 09:28:22,789 INFO L175 Difference]: Start difference. First operand has 175 places, 205 transitions, 562 flow. Second operand 3 states and 526 transitions. [2022-11-20 09:28:22,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 237 transitions, 882 flow [2022-11-20 09:28:22,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 237 transitions, 824 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:22,801 INFO L231 Difference]: Finished difference. Result has 177 places, 219 transitions, 674 flow [2022-11-20 09:28:22,802 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} [2022-11-20 09:28:22,805 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -9 predicate places. [2022-11-20 09:28:22,805 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 219 transitions, 674 flow [2022-11-20 09:28:22,805 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) [2022-11-20 09:28:22,806 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:22,806 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] [2022-11-20 09:28:22,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 09:28:22,806 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 09:28:22,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:22,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1610738057, now seen corresponding path program 1 times [2022-11-20 09:28:22,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:22,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134840731] [2022-11-20 09:28:22,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:22,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:22,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:22,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:22,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:22,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134840731] [2022-11-20 09:28:22,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134840731] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:22,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:22,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:22,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654931068] [2022-11-20 09:28:22,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:22,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:22,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:22,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:22,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:22,909 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 209 [2022-11-20 09:28:22,909 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) [2022-11-20 09:28:22,910 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:22,910 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 209 [2022-11-20 09:28:22,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:23,633 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|)]) [2022-11-20 09:28:23,633 INFO L383 tUnfolder$Statistics]: this new event has 127 ancestors and is cut-off event [2022-11-20 09:28:23,633 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2022-11-20 09:28:23,633 INFO L386 tUnfolder$Statistics]: existing Event has 42 ancestors and is cut-off event [2022-11-20 09:28:23,634 INFO L386 tUnfolder$Statistics]: existing Event has 83 ancestors and is cut-off event [2022-11-20 09:28:23,635 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] L689-4-->L689-1: Formula: (= |v_#race~flag2~0_1| 0) InVars {} OutVars{#race~flag2~0=|v_#race~flag2~0_1|} AuxVars[] AssignedVars[#race~flag2~0][47], [208#true, Black: 192#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 83#L689-1true, 14#L706-4true, Black: 196#true, thr1Thread1of1ForFork0InUse, 202#true, Black: 204#(= |ULTIMATE.start_thr2_#t~nondet10#1| |#race~flag2~0|)]) [2022-11-20 09:28:23,636 INFO L383 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-11-20 09:28:23,636 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is cut-off event [2022-11-20 09:28:23,636 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2022-11-20 09:28:23,636 INFO L386 tUnfolder$Statistics]: existing Event has 84 ancestors and is cut-off event [2022-11-20 09:28:23,639 INFO L130 PetriNetUnfolder]: 1523/5536 cut-off events. [2022-11-20 09:28:23,639 INFO L131 PetriNetUnfolder]: For 896/936 co-relation queries the response was YES. [2022-11-20 09:28:23,653 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 48128 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. [2022-11-20 09:28:23,676 INFO L137 encePairwiseOnDemand]: 199/209 looper letters, 54 selfloop transitions, 9 changer transitions 0/239 dead transitions. [2022-11-20 09:28:23,676 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 239 transitions, 852 flow [2022-11-20 09:28:23,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:23,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:23,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 528 transitions. [2022-11-20 09:28:23,679 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8421052631578947 [2022-11-20 09:28:23,679 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 528 transitions. [2022-11-20 09:28:23,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 528 transitions. [2022-11-20 09:28:23,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:23,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 528 transitions. [2022-11-20 09:28:23,681 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) [2022-11-20 09:28:23,683 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) [2022-11-20 09:28:23,683 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) [2022-11-20 09:28:23,684 INFO L175 Difference]: Start difference. First operand has 177 places, 219 transitions, 674 flow. Second operand 3 states and 528 transitions. [2022-11-20 09:28:23,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 239 transitions, 852 flow [2022-11-20 09:28:23,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 239 transitions, 820 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:23,693 INFO L231 Difference]: Finished difference. Result has 179 places, 227 transitions, 724 flow [2022-11-20 09:28:23,694 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} [2022-11-20 09:28:23,694 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -7 predicate places. [2022-11-20 09:28:23,695 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 227 transitions, 724 flow [2022-11-20 09:28:23,695 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) [2022-11-20 09:28:23,695 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:23,696 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] [2022-11-20 09:28:23,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 09:28:23,696 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)] === [2022-11-20 09:28:23,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:23,697 INFO L85 PathProgramCache]: Analyzing trace with hash -627574054, now seen corresponding path program 1 times [2022-11-20 09:28:23,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:23,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039486862] [2022-11-20 09:28:23,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:23,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:23,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:23,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:23,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:23,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039486862] [2022-11-20 09:28:23,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039486862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:23,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:23,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:23,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996473639] [2022-11-20 09:28:23,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:23,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:23,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:23,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:23,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:23,736 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 209 [2022-11-20 09:28:23,737 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) [2022-11-20 09:28:23,737 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:23,737 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 209 [2022-11-20 09:28:23,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:24,701 INFO L130 PetriNetUnfolder]: 1921/7423 cut-off events. [2022-11-20 09:28:24,701 INFO L131 PetriNetUnfolder]: For 2569/2716 co-relation queries the response was YES. [2022-11-20 09:28:24,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13175 conditions, 7423 events. 1921/7423 cut-off events. For 2569/2716 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 70595 event pairs, 180 based on Foata normal form. 21/5833 useless extension candidates. Maximal degree in co-relation 13145. Up to 1323 conditions per place. [2022-11-20 09:28:24,757 INFO L137 encePairwiseOnDemand]: 186/209 looper letters, 56 selfloop transitions, 29 changer transitions 0/264 dead transitions. [2022-11-20 09:28:24,757 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 264 transitions, 1050 flow [2022-11-20 09:28:24,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:24,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:24,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 542 transitions. [2022-11-20 09:28:24,759 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8644338118022329 [2022-11-20 09:28:24,759 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 542 transitions. [2022-11-20 09:28:24,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 542 transitions. [2022-11-20 09:28:24,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:24,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 542 transitions. [2022-11-20 09:28:24,762 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) [2022-11-20 09:28:24,764 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) [2022-11-20 09:28:24,764 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) [2022-11-20 09:28:24,765 INFO L175 Difference]: Start difference. First operand has 179 places, 227 transitions, 724 flow. Second operand 3 states and 542 transitions. [2022-11-20 09:28:24,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 264 transitions, 1050 flow [2022-11-20 09:28:24,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 264 transitions, 994 flow, removed 12 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:24,780 INFO L231 Difference]: Finished difference. Result has 181 places, 256 transitions, 990 flow [2022-11-20 09:28:24,780 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} [2022-11-20 09:28:24,781 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -5 predicate places. [2022-11-20 09:28:24,781 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 256 transitions, 990 flow [2022-11-20 09:28:24,782 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) [2022-11-20 09:28:24,782 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:24,782 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] [2022-11-20 09:28:24,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 09:28:24,783 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 09:28:24,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:24,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1071943948, now seen corresponding path program 1 times [2022-11-20 09:28:24,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:24,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993187727] [2022-11-20 09:28:24,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:24,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:24,801 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:24,832 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:24,833 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 09:28:24,836 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (39 of 40 remaining) [2022-11-20 09:28:24,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2022-11-20 09:28:24,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2022-11-20 09:28:24,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2022-11-20 09:28:24,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2022-11-20 09:28:24,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2022-11-20 09:28:24,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (33 of 40 remaining) [2022-11-20 09:28:24,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2022-11-20 09:28:24,840 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2022-11-20 09:28:24,840 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2022-11-20 09:28:24,840 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2022-11-20 09:28:24,840 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2022-11-20 09:28:24,841 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2022-11-20 09:28:24,841 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2022-11-20 09:28:24,841 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2022-11-20 09:28:24,841 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2022-11-20 09:28:24,842 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2022-11-20 09:28:24,842 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2022-11-20 09:28:24,842 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2022-11-20 09:28:24,842 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2022-11-20 09:28:24,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 40 remaining) [2022-11-20 09:28:24,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2022-11-20 09:28:24,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2022-11-20 09:28:24,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2022-11-20 09:28:24,844 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2022-11-20 09:28:24,844 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2022-11-20 09:28:24,844 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2022-11-20 09:28:24,844 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 40 remaining) [2022-11-20 09:28:24,845 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2022-11-20 09:28:24,845 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2022-11-20 09:28:24,845 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2022-11-20 09:28:24,845 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2022-11-20 09:28:24,846 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2022-11-20 09:28:24,846 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2022-11-20 09:28:24,846 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2022-11-20 09:28:24,846 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2022-11-20 09:28:24,847 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2022-11-20 09:28:24,847 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2022-11-20 09:28:24,847 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2022-11-20 09:28:24,847 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2022-11-20 09:28:24,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 09:28:24,848 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-20 09:28:24,855 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 09:28:24,855 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 09:28:24,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:28:24 BasicIcfg [2022-11-20 09:28:24,892 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 09:28:24,892 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 09:28:24,892 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 09:28:24,893 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 09:28:24,893 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:20" (3/4) ... [2022-11-20 09:28:24,896 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 09:28:24,896 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 09:28:24,902 INFO L158 Benchmark]: Toolchain (without parser) took 6228.45ms. Allocated memory was 172.0MB in the beginning and 281.0MB in the end (delta: 109.1MB). Free memory was 126.0MB in the beginning and 144.0MB in the end (delta: -18.0MB). Peak memory consumption was 91.6MB. Max. memory is 16.1GB. [2022-11-20 09:28:24,904 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 121.6MB. Free memory was 64.0MB in the beginning and 63.9MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:28:24,905 INFO L158 Benchmark]: CACSL2BoogieTranslator took 655.15ms. Allocated memory is still 172.0MB. Free memory was 126.0MB in the beginning and 106.0MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 09:28:24,905 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.40ms. Allocated memory is still 172.0MB. Free memory was 106.0MB in the beginning and 104.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:28:24,905 INFO L158 Benchmark]: Boogie Preprocessor took 62.25ms. Allocated memory is still 172.0MB. Free memory was 104.4MB in the beginning and 102.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:28:24,906 INFO L158 Benchmark]: RCFGBuilder took 661.87ms. Allocated memory is still 172.0MB. Free memory was 102.4MB in the beginning and 138.7MB in the end (delta: -36.4MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2022-11-20 09:28:24,906 INFO L158 Benchmark]: TraceAbstraction took 4760.56ms. Allocated memory was 172.0MB in the beginning and 281.0MB in the end (delta: 109.1MB). Free memory was 137.7MB in the beginning and 145.0MB in the end (delta: -7.3MB). Peak memory consumption was 101.7MB. Max. memory is 16.1GB. [2022-11-20 09:28:24,906 INFO L158 Benchmark]: Witness Printer took 3.99ms. Allocated memory is still 281.0MB. Free memory is still 144.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:28:24,908 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 121.6MB. Free memory was 64.0MB in the beginning and 63.9MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 655.15ms. Allocated memory is still 172.0MB. Free memory was 126.0MB in the beginning and 106.0MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.40ms. Allocated memory is still 172.0MB. Free memory was 106.0MB in the beginning and 104.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.25ms. Allocated memory is still 172.0MB. Free memory was 104.4MB in the beginning and 102.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 661.87ms. Allocated memory is still 172.0MB. Free memory was 102.4MB in the beginning and 138.7MB in the end (delta: -36.4MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4760.56ms. Allocated memory was 172.0MB in the beginning and 281.0MB in the end (delta: 109.1MB). Free memory was 137.7MB in the beginning and 145.0MB in the end (delta: -7.3MB). Peak memory consumption was 101.7MB. Max. memory is 16.1GB. * Witness Printer took 3.99ms. Allocated memory is still 281.0MB. Free memory is still 144.0MB. 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: [L684] 0 int flag1 = 0, flag2 = 0; VAL [flag1=0, flag2=0] [L685] 0 int x; 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: 4.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, 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! [2022-11-20 09:28:24,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0827af5b-d160-4f62-b542-f0c0f52c86dd/bin/uautomizer-ug76WZFUDN/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