./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d0c24a-4cbc-4aaf-96b3-b367b3ca4263/bin/ugemcutter-1C6z4D84am/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d0c24a-4cbc-4aaf-96b3-b367b3ca4263/bin/ugemcutter-1C6z4D84am/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d0c24a-4cbc-4aaf-96b3-b367b3ca4263/bin/ugemcutter-1C6z4D84am/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d0c24a-4cbc-4aaf-96b3-b367b3ca4263/bin/ugemcutter-1C6z4D84am/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d0c24a-4cbc-4aaf-96b3-b367b3ca4263/bin/ugemcutter-1C6z4D84am/config/svcomp-DataRace-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d0c24a-4cbc-4aaf-96b3-b367b3ca4263/bin/ugemcutter-1C6z4D84am --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c6847e0a77224cc67de11826c53270ee36a6eb5754e5add0bb0a49165dff2879 --- 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-4e7fbc6 [2022-11-23 06:47:57,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 06:47:57,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 06:47:57,758 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 06:47:57,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 06:47:57,764 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 06:47:57,767 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 06:47:57,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 06:47:57,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 06:47:57,776 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 06:47:57,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 06:47:57,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 06:47:57,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 06:47:57,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 06:47:57,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 06:47:57,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 06:47:57,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 06:47:57,790 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 06:47:57,792 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 06:47:57,796 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 06:47:57,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 06:47:57,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 06:47:57,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 06:47:57,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 06:47:57,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 06:47:57,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 06:47:57,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 06:47:57,814 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 06:47:57,816 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 06:47:57,816 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 06:47:57,817 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 06:47:57,818 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 06:47:57,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 06:47:57,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 06:47:57,822 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 06:47:57,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 06:47:57,823 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 06:47:57,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 06:47:57,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 06:47:57,825 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 06:47:57,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 06:47:57,827 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d0c24a-4cbc-4aaf-96b3-b367b3ca4263/bin/ugemcutter-1C6z4D84am/config/svcomp-DataRace-32bit-GemCutter_Default.epf [2022-11-23 06:47:57,859 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 06:47:57,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 06:47:57,860 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 06:47:57,860 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 06:47:57,861 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 06:47:57,861 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 06:47:57,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 06:47:57,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 06:47:57,862 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 06:47:57,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 06:47:57,863 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 06:47:57,864 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 06:47:57,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 06:47:57,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 06:47:57,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 06:47:57,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 06:47:57,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 06:47:57,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 06:47:57,865 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 06:47:57,865 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 06:47:57,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 06:47:57,866 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 06:47:57,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 06:47:57,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 06:47:57,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 06:47:57,867 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-23 06:47:57,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 06:47:57,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 06:47:57,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 06:47:57,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 06:47:57,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 06:47:57,869 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 06:47:57,869 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2022-11-23 06:47:57,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 06:47:57,869 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-23 06:47:57,869 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-11-23 06:47:57,870 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-23 06:47:57,870 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 06:47:57,870 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-23 06:47:57,870 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-23 06:47:57,870 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d0c24a-4cbc-4aaf-96b3-b367b3ca4263/bin/ugemcutter-1C6z4D84am/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d0c24a-4cbc-4aaf-96b3-b367b3ca4263/bin/ugemcutter-1C6z4D84am Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6847e0a77224cc67de11826c53270ee36a6eb5754e5add0bb0a49165dff2879 [2022-11-23 06:47:58,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 06:47:58,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 06:47:58,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 06:47:58,201 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 06:47:58,202 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 06:47:58,203 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d0c24a-4cbc-4aaf-96b3-b367b3ca4263/bin/ugemcutter-1C6z4D84am/../../sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c [2022-11-23 06:48:01,152 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 06:48:01,420 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 06:48:01,421 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d0c24a-4cbc-4aaf-96b3-b367b3ca4263/sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c [2022-11-23 06:48:01,428 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d0c24a-4cbc-4aaf-96b3-b367b3ca4263/bin/ugemcutter-1C6z4D84am/data/4fe01261c/eaa774cbcc794a0f90ea02ed5f66f821/FLAGe95333337 [2022-11-23 06:48:01,440 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d0c24a-4cbc-4aaf-96b3-b367b3ca4263/bin/ugemcutter-1C6z4D84am/data/4fe01261c/eaa774cbcc794a0f90ea02ed5f66f821 [2022-11-23 06:48:01,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 06:48:01,444 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 06:48:01,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 06:48:01,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 06:48:01,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 06:48:01,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:48:01" (1/1) ... [2022-11-23 06:48:01,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42e5c8b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:01, skipping insertion in model container [2022-11-23 06:48:01,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:48:01" (1/1) ... [2022-11-23 06:48:01,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 06:48:01,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 06:48:01,687 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_01d0c24a-4cbc-4aaf-96b3-b367b3ca4263/sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c[3615,3628] [2022-11-23 06:48:01,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 06:48:01,704 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 06:48:01,749 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_01d0c24a-4cbc-4aaf-96b3-b367b3ca4263/sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c[3615,3628] [2022-11-23 06:48:01,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 06:48:01,787 INFO L208 MainTranslator]: Completed translation [2022-11-23 06:48:01,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:01 WrapperNode [2022-11-23 06:48:01,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 06:48:01,789 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 06:48:01,789 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 06:48:01,789 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 06:48:01,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:01" (1/1) ... [2022-11-23 06:48:01,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:01" (1/1) ... [2022-11-23 06:48:01,859 INFO L138 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 16, calls inlined = 18, statements flattened = 551 [2022-11-23 06:48:01,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 06:48:01,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 06:48:01,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 06:48:01,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 06:48:01,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:01" (1/1) ... [2022-11-23 06:48:01,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:01" (1/1) ... [2022-11-23 06:48:01,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:01" (1/1) ... [2022-11-23 06:48:01,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:01" (1/1) ... [2022-11-23 06:48:01,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:01" (1/1) ... [2022-11-23 06:48:01,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:01" (1/1) ... [2022-11-23 06:48:01,910 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:01" (1/1) ... [2022-11-23 06:48:01,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:01" (1/1) ... [2022-11-23 06:48:01,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 06:48:01,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 06:48:01,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 06:48:01,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 06:48:01,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:01" (1/1) ... [2022-11-23 06:48:01,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 06:48:01,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d0c24a-4cbc-4aaf-96b3-b367b3ca4263/bin/ugemcutter-1C6z4D84am/z3 [2022-11-23 06:48:01,947 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d0c24a-4cbc-4aaf-96b3-b367b3ca4263/bin/ugemcutter-1C6z4D84am/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 06:48:01,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d0c24a-4cbc-4aaf-96b3-b367b3ca4263/bin/ugemcutter-1C6z4D84am/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 06:48:01,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 06:48:01,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 06:48:01,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 06:48:01,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 06:48:01,994 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-23 06:48:01,994 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-23 06:48:01,995 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-23 06:48:01,995 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-23 06:48:01,995 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-23 06:48:01,995 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-23 06:48:01,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 06:48:01,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 06:48:01,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 06:48:01,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 06:48:01,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 06:48:01,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 06:48:01,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 06:48:01,999 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 06:48:02,204 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 06:48:02,206 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 06:48:03,265 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 06:48:03,865 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 06:48:03,865 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-23 06:48:03,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:48:03 BoogieIcfgContainer [2022-11-23 06:48:03,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 06:48:03,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 06:48:03,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 06:48:03,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 06:48:03,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:48:01" (1/3) ... [2022-11-23 06:48:03,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b439e17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:48:03, skipping insertion in model container [2022-11-23 06:48:03,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:01" (2/3) ... [2022-11-23 06:48:03,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b439e17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:48:03, skipping insertion in model container [2022-11-23 06:48:03,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:48:03" (3/3) ... [2022-11-23 06:48:03,877 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-queue-add-3-nl.wvr.c [2022-11-23 06:48:03,887 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 06:48:03,900 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 06:48:03,900 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 89 error locations. [2022-11-23 06:48:03,900 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 06:48:04,047 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-23 06:48:04,113 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 06:48:04,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-23 06:48:04,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d0c24a-4cbc-4aaf-96b3-b367b3ca4263/bin/ugemcutter-1C6z4D84am/z3 [2022-11-23 06:48:04,117 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d0c24a-4cbc-4aaf-96b3-b367b3ca4263/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-23 06:48:04,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d0c24a-4cbc-4aaf-96b3-b367b3ca4263/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-23 06:48:04,163 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-23 06:48:04,175 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork2 ======== [2022-11-23 06:48:04,182 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=PARTIAL_ORDER_FA, 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;@1d19d2d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 06:48:04,182 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-11-23 06:48:04,852 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-23 06:48:04,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:48:04,861 INFO L85 PathProgramCache]: Analyzing trace with hash 51974150, now seen corresponding path program 1 times [2022-11-23 06:48:04,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:48:04,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789045192] [2022-11-23 06:48:04,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:48:04,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:48:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:48:05,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:48:05,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:48:05,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789045192] [2022-11-23 06:48:05,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789045192] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:48:05,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:48:05,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 06:48:05,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221327029] [2022-11-23 06:48:05,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:48:05,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 06:48:05,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:48:05,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 06:48:05,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 06:48:05,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:05,258 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:48:05,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 93.0) internal successors, (186), 2 states have internal predecessors, (186), 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) [2022-11-23 06:48:05,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:05,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:05,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 06:48:05,301 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-23 06:48:05,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:48:05,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1040220822, now seen corresponding path program 1 times [2022-11-23 06:48:05,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:48:05,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571914475] [2022-11-23 06:48:05,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:48:05,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:48:05,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:48:05,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:48:05,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:48:05,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571914475] [2022-11-23 06:48:05,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571914475] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:48:05,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:48:05,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 06:48:05,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256887958] [2022-11-23 06:48:05,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:48:05,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 06:48:05,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:48:05,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 06:48:05,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 06:48:05,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:05,541 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:48:05,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 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) [2022-11-23 06:48:05,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:05,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:05,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:05,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:05,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 06:48:05,764 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-23 06:48:05,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:48:05,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1274001876, now seen corresponding path program 1 times [2022-11-23 06:48:05,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:48:05,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366867166] [2022-11-23 06:48:05,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:48:05,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:48:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:48:05,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:48:05,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:48:05,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366867166] [2022-11-23 06:48:05,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366867166] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:48:05,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:48:05,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 06:48:05,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171024041] [2022-11-23 06:48:05,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:48:05,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 06:48:05,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:48:05,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 06:48:05,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 06:48:05,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:05,913 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:48:05,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 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) [2022-11-23 06:48:05,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:05,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:05,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:05,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:05,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:05,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:05,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 06:48:05,994 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-23 06:48:05,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:48:05,996 INFO L85 PathProgramCache]: Analyzing trace with hash 39872538, now seen corresponding path program 1 times [2022-11-23 06:48:05,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:48:05,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812030066] [2022-11-23 06:48:05,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:48:05,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:48:06,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:48:06,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:48:06,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:48:06,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812030066] [2022-11-23 06:48:06,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812030066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:48:06,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:48:06,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 06:48:06,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914703219] [2022-11-23 06:48:06,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:48:06,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 06:48:06,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:48:06,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 06:48:06,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 06:48:06,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:06,169 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:48:06,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2022-11-23 06:48:06,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:06,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:06,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:06,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:06,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:06,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:06,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:06,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:06,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 06:48:06,253 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-23 06:48:06,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:48:06,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1393336908, now seen corresponding path program 1 times [2022-11-23 06:48:06,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:48:06,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194782341] [2022-11-23 06:48:06,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:48:06,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:48:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:48:06,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:48:06,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:48:06,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194782341] [2022-11-23 06:48:06,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194782341] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:48:06,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:48:06,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 06:48:06,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506770978] [2022-11-23 06:48:06,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:48:06,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 06:48:06,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:48:06,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 06:48:06,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 06:48:06,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:06,366 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:48:06,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 94.5) internal successors, (189), 3 states have internal predecessors, (189), 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) [2022-11-23 06:48:06,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:06,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:06,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:06,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:06,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:06,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:06,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:06,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:06,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:06,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:06,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 06:48:06,698 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err19ASSERT_VIOLATIONDATA_RACE === [thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-23 06:48:06,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:48:06,699 INFO L85 PathProgramCache]: Analyzing trace with hash -933227300, now seen corresponding path program 1 times [2022-11-23 06:48:06,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:48:06,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019077212] [2022-11-23 06:48:06,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:48:06,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:48:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:48:06,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:48:06,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:48:06,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019077212] [2022-11-23 06:48:06,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019077212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:48:06,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:48:06,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 06:48:06,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386832101] [2022-11-23 06:48:06,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:48:06,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 06:48:06,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:48:06,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 06:48:06,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 06:48:06,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:06,821 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:48:06,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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) [2022-11-23 06:48:06,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:06,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:06,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:06,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:06,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:06,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:06,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:06,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:06,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:06,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:06,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:06,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:06,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 06:48:06,983 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err19ASSERT_VIOLATIONDATA_RACE === [thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-23 06:48:06,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:48:06,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1737184233, now seen corresponding path program 1 times [2022-11-23 06:48:06,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:48:06,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590904056] [2022-11-23 06:48:06,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:48:06,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:48:07,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:48:07,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:48:07,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:48:07,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590904056] [2022-11-23 06:48:07,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590904056] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:48:07,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:48:07,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 06:48:07,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152247087] [2022-11-23 06:48:07,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:48:07,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 06:48:07,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:48:07,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 06:48:07,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 06:48:07,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:07,122 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:48:07,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 105.0) internal successors, (210), 3 states have internal predecessors, (210), 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) [2022-11-23 06:48:07,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:07,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:07,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:07,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 06:48:07,250 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err20ASSERT_VIOLATIONDATA_RACE === [thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-23 06:48:07,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:48:07,250 INFO L85 PathProgramCache]: Analyzing trace with hash 690957449, now seen corresponding path program 1 times [2022-11-23 06:48:07,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:48:07,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135601788] [2022-11-23 06:48:07,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:48:07,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:48:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:48:07,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:48:07,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:48:07,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135601788] [2022-11-23 06:48:07,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135601788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:48:07,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:48:07,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 06:48:07,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182849795] [2022-11-23 06:48:07,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:48:07,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 06:48:07,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:48:07,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 06:48:07,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 06:48:07,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:07,398 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:48:07,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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) [2022-11-23 06:48:07,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:07,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:07,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:07,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 06:48:07,665 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err20ASSERT_VIOLATIONDATA_RACE === [thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-23 06:48:07,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:48:07,666 INFO L85 PathProgramCache]: Analyzing trace with hash -247909712, now seen corresponding path program 1 times [2022-11-23 06:48:07,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:48:07,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388815244] [2022-11-23 06:48:07,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:48:07,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:48:07,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:48:07,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:48:07,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:48:07,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388815244] [2022-11-23 06:48:07,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388815244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:48:07,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:48:07,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 06:48:07,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596626050] [2022-11-23 06:48:07,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:48:07,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 06:48:07,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:48:07,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 06:48:07,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 06:48:07,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:07,786 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:48:07,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 111.0) internal successors, (222), 3 states have internal predecessors, (222), 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) [2022-11-23 06:48:07,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:07,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:07,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:07,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:07,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 06:48:07,915 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err21ASSERT_VIOLATIONDATA_RACE === [thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-23 06:48:07,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:48:07,916 INFO L85 PathProgramCache]: Analyzing trace with hash -753993374, now seen corresponding path program 1 times [2022-11-23 06:48:07,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:48:07,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595988178] [2022-11-23 06:48:07,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:48:07,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:48:07,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:48:08,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:48:08,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:48:08,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595988178] [2022-11-23 06:48:08,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595988178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:48:08,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:48:08,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 06:48:08,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898529623] [2022-11-23 06:48:08,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:48:08,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 06:48:08,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:48:08,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 06:48:08,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 06:48:08,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:08,100 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:48:08,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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) [2022-11-23 06:48:08,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:08,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:08,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:08,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 06:48:08,207 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err21ASSERT_VIOLATIONDATA_RACE === [thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-23 06:48:08,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:48:08,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1898925315, now seen corresponding path program 1 times [2022-11-23 06:48:08,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:48:08,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883486363] [2022-11-23 06:48:08,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:48:08,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:48:08,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:48:08,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:48:08,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:48:08,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883486363] [2022-11-23 06:48:08,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883486363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:48:08,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:48:08,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 06:48:08,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701882088] [2022-11-23 06:48:08,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:48:08,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 06:48:08,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:48:08,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 06:48:08,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 06:48:08,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:08,332 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:48:08,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 114.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2022-11-23 06:48:08,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:08,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:08,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:08,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 06:48:08,462 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err23ASSERT_VIOLATIONDATA_RACE === [thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-23 06:48:08,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:48:08,463 INFO L85 PathProgramCache]: Analyzing trace with hash 395696256, now seen corresponding path program 1 times [2022-11-23 06:48:08,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:48:08,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837040297] [2022-11-23 06:48:08,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:48:08,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:48:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:48:08,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:48:08,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:48:08,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837040297] [2022-11-23 06:48:08,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837040297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:48:08,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:48:08,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 06:48:08,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807232669] [2022-11-23 06:48:08,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:48:08,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 06:48:08,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:48:08,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 06:48:08,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 06:48:08,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:08,638 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:48:08,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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) [2022-11-23 06:48:08,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:08,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:08,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:08,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 06:48:08,781 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err23ASSERT_VIOLATIONDATA_RACE === [thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-23 06:48:08,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:48:08,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1334626363, now seen corresponding path program 1 times [2022-11-23 06:48:08,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:48:08,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263495796] [2022-11-23 06:48:08,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:48:08,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:48:08,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:48:08,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:48:08,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:48:08,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263495796] [2022-11-23 06:48:08,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263495796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:48:08,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:48:08,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 06:48:08,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297127531] [2022-11-23 06:48:08,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:48:08,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 06:48:08,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:48:08,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 06:48:08,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 06:48:08,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:08,915 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:48:08,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2022-11-23 06:48:08,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:08,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:08,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:09,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:09,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:09,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:09,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:09,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:09,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:09,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:09,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:09,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:09,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:09,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:09,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:09,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:09,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-23 06:48:09,031 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err23ASSERT_VIOLATIONDATA_RACE === [thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-23 06:48:09,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:48:09,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1334626394, now seen corresponding path program 1 times [2022-11-23 06:48:09,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:48:09,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177833495] [2022-11-23 06:48:09,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:48:09,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:48:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:48:09,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:48:09,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:48:09,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177833495] [2022-11-23 06:48:09,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177833495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:48:09,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:48:09,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 06:48:09,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038399488] [2022-11-23 06:48:09,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:48:09,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 06:48:09,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:48:09,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 06:48:09,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 06:48:09,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:09,149 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:48:09,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 120.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2022-11-23 06:48:09,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:09,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:09,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:09,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:09,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:09,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:09,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:09,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:09,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:09,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:09,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:09,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:09,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:48:09,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.