./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a 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_b8897338-c061-4cb2-a2db-ba3fadb26a7d/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8897338-c061-4cb2-a2db-ba3fadb26a7d/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8897338-c061-4cb2-a2db-ba3fadb26a7d/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8897338-c061-4cb2-a2db-ba3fadb26a7d/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8897338-c061-4cb2-a2db-ba3fadb26a7d/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8897338-c061-4cb2-a2db-ba3fadb26a7d/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dfec19cb420bdcc992ee0af7789c6701a360457d4b79eebd70c54f4e314fbf3f --- 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-5e519f3 [2022-11-02 20:22:59,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:22:59,659 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:22:59,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:22:59,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:22:59,700 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:22:59,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:22:59,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:22:59,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:22:59,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:22:59,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:22:59,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:22:59,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:22:59,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:22:59,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:22:59,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:22:59,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:22:59,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:22:59,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:22:59,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:22:59,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:22:59,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:22:59,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:22:59,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:22:59,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:22:59,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:22:59,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:22:59,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:22:59,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:22:59,741 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:22:59,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:22:59,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:22:59,744 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:22:59,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:22:59,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:22:59,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:22:59,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:22:59,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:22:59,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:22:59,750 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:22:59,751 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:22:59,752 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8897338-c061-4cb2-a2db-ba3fadb26a7d/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:22:59,798 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:22:59,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:22:59,805 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:22:59,806 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:22:59,807 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:22:59,808 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:22:59,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:22:59,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:22:59,809 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:22:59,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:22:59,811 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:22:59,811 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:22:59,812 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:22:59,812 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:22:59,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:22:59,812 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:22:59,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:22:59,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:22:59,813 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:22:59,813 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:22:59,814 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:22:59,814 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:22:59,814 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:22:59,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:22:59,815 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:22:59,815 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:22:59,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:22:59,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:22:59,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:22:59,816 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:22:59,817 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:22:59,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:22:59,818 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:22:59,819 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:22:59,819 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:22:59,819 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_b8897338-c061-4cb2-a2db-ba3fadb26a7d/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8897338-c061-4cb2-a2db-ba3fadb26a7d/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfec19cb420bdcc992ee0af7789c6701a360457d4b79eebd70c54f4e314fbf3f [2022-11-02 20:23:00,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:23:00,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:23:00,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:23:00,307 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:23:00,308 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:23:00,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8897338-c061-4cb2-a2db-ba3fadb26a7d/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c [2022-11-02 20:23:00,406 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8897338-c061-4cb2-a2db-ba3fadb26a7d/bin/uautomizer-Dbtcem3rbc/data/0f792558a/59d16b70c4904184873a426d9a533d37/FLAG610b3b63b [2022-11-02 20:23:01,099 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:23:01,100 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8897338-c061-4cb2-a2db-ba3fadb26a7d/sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c [2022-11-02 20:23:01,107 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8897338-c061-4cb2-a2db-ba3fadb26a7d/bin/uautomizer-Dbtcem3rbc/data/0f792558a/59d16b70c4904184873a426d9a533d37/FLAG610b3b63b [2022-11-02 20:23:01,414 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8897338-c061-4cb2-a2db-ba3fadb26a7d/bin/uautomizer-Dbtcem3rbc/data/0f792558a/59d16b70c4904184873a426d9a533d37 [2022-11-02 20:23:01,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:23:01,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:23:01,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:23:01,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:23:01,427 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:23:01,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:23:01" (1/1) ... [2022-11-02 20:23:01,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20bda09c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:01, skipping insertion in model container [2022-11-02 20:23:01,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:23:01" (1/1) ... [2022-11-02 20:23:01,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:23:01,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:23:01,750 WARN L230 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_b8897338-c061-4cb2-a2db-ba3fadb26a7d/sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c[2098,2111] [2022-11-02 20:23:01,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:23:01,766 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:23:01,799 WARN L230 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_b8897338-c061-4cb2-a2db-ba3fadb26a7d/sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c[2098,2111] [2022-11-02 20:23:01,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:23:01,819 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:23:01,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:01 WrapperNode [2022-11-02 20:23:01,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:23:01,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:23:01,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:23:01,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:23:01,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:01" (1/1) ... [2022-11-02 20:23:01,841 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:01" (1/1) ... [2022-11-02 20:23:01,868 INFO L138 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 89 [2022-11-02 20:23:01,868 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:23:01,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:23:01,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:23:01,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:23:01,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:01" (1/1) ... [2022-11-02 20:23:01,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:01" (1/1) ... [2022-11-02 20:23:01,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:01" (1/1) ... [2022-11-02 20:23:01,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:01" (1/1) ... [2022-11-02 20:23:01,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:01" (1/1) ... [2022-11-02 20:23:01,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:01" (1/1) ... [2022-11-02 20:23:01,901 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:01" (1/1) ... [2022-11-02 20:23:01,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:01" (1/1) ... [2022-11-02 20:23:01,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:23:01,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:23:01,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:23:01,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:23:01,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:01" (1/1) ... [2022-11-02 20:23:01,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:23:01,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8897338-c061-4cb2-a2db-ba3fadb26a7d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:23:01,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8897338-c061-4cb2-a2db-ba3fadb26a7d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:23:01,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8897338-c061-4cb2-a2db-ba3fadb26a7d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:23:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:23:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 20:23:02,022 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 20:23:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 20:23:02,023 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 20:23:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:23:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:23:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:23:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-02 20:23:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-02 20:23:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:23:02,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:23:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:23:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:23:02,026 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:23:02,191 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:23:02,194 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:23:02,716 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:23:02,799 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:23:02,799 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-02 20:23:02,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:23:02 BoogieIcfgContainer [2022-11-02 20:23:02,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:23:02,806 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:23:02,806 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:23:02,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:23:02,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:23:01" (1/3) ... [2022-11-02 20:23:02,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1e795d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:23:02, skipping insertion in model container [2022-11-02 20:23:02,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:01" (2/3) ... [2022-11-02 20:23:02,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1e795d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:23:02, skipping insertion in model container [2022-11-02 20:23:02,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:23:02" (3/3) ... [2022-11-02 20:23:02,815 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-nonblocking-cntr-alt.wvr.c [2022-11-02 20:23:02,827 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:23:02,841 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:23:02,841 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-02 20:23:02,841 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:23:02,963 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-02 20:23:03,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 138 transitions, 292 flow [2022-11-02 20:23:03,159 INFO L130 PetriNetUnfolder]: 7/136 cut-off events. [2022-11-02 20:23:03,159 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 20:23:03,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 136 events. 7/136 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 99 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 78. Up to 2 conditions per place. [2022-11-02 20:23:03,167 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 138 transitions, 292 flow [2022-11-02 20:23:03,177 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 118 transitions, 248 flow [2022-11-02 20:23:03,198 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:23:03,211 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4a19a0d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:23:03,211 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-02 20:23:03,223 INFO L130 PetriNetUnfolder]: 0/22 cut-off events. [2022-11-02 20:23:03,223 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:23:03,224 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:03,225 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:03,226 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-11-02 20:23:03,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:03,233 INFO L85 PathProgramCache]: Analyzing trace with hash 970339052, now seen corresponding path program 1 times [2022-11-02 20:23:03,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:03,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751739619] [2022-11-02 20:23:03,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:03,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:03,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:03,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:03,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751739619] [2022-11-02 20:23:03,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751739619] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:03,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:03,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:23:03,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823209174] [2022-11-02 20:23:03,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:03,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:23:03,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:03,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:23:03,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:23:03,721 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 138 [2022-11-02 20:23:03,729 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 118 transitions, 248 flow. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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) [2022-11-02 20:23:03,730 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:03,730 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 138 [2022-11-02 20:23:03,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:03,925 INFO L130 PetriNetUnfolder]: 19/163 cut-off events. [2022-11-02 20:23:03,925 INFO L131 PetriNetUnfolder]: For 25/32 co-relation queries the response was YES. [2022-11-02 20:23:03,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 163 events. 19/163 cut-off events. For 25/32 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 308 event pairs, 8 based on Foata normal form. 12/145 useless extension candidates. Maximal degree in co-relation 115. Up to 44 conditions per place. [2022-11-02 20:23:03,931 INFO L137 encePairwiseOnDemand]: 127/138 looper letters, 18 selfloop transitions, 2 changer transitions 1/109 dead transitions. [2022-11-02 20:23:03,931 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 109 transitions, 270 flow [2022-11-02 20:23:03,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:23:03,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:23:03,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions. [2022-11-02 20:23:03,965 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8454106280193237 [2022-11-02 20:23:03,966 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 350 transitions. [2022-11-02 20:23:03,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 350 transitions. [2022-11-02 20:23:03,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:03,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 350 transitions. [2022-11-02 20:23:03,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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) [2022-11-02 20:23:03,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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) [2022-11-02 20:23:03,984 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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) [2022-11-02 20:23:03,987 INFO L175 Difference]: Start difference. First operand has 119 places, 118 transitions, 248 flow. Second operand 3 states and 350 transitions. [2022-11-02 20:23:03,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 109 transitions, 270 flow [2022-11-02 20:23:03,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 109 transitions, 262 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:23:04,002 INFO L231 Difference]: Finished difference. Result has 111 places, 108 transitions, 224 flow [2022-11-02 20:23:04,005 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=111, PETRI_TRANSITIONS=108} [2022-11-02 20:23:04,009 INFO L287 CegarLoopForPetriNet]: 119 programPoint places, -8 predicate places. [2022-11-02 20:23:04,009 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 108 transitions, 224 flow [2022-11-02 20:23:04,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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) [2022-11-02 20:23:04,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:04,011 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:04,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:23:04,011 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-11-02 20:23:04,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:04,012 INFO L85 PathProgramCache]: Analyzing trace with hash -425490579, now seen corresponding path program 1 times [2022-11-02 20:23:04,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:04,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110391650] [2022-11-02 20:23:04,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:04,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:04,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:04,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:04,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:04,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110391650] [2022-11-02 20:23:04,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110391650] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:04,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:04,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:23:04,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808060455] [2022-11-02 20:23:04,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:04,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:23:04,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:04,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:23:04,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:23:04,183 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 138 [2022-11-02 20:23:04,184 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 108 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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) [2022-11-02 20:23:04,190 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:04,190 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 138 [2022-11-02 20:23:04,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:04,319 INFO L130 PetriNetUnfolder]: 22/163 cut-off events. [2022-11-02 20:23:04,320 INFO L131 PetriNetUnfolder]: For 10/18 co-relation queries the response was YES. [2022-11-02 20:23:04,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 163 events. 22/163 cut-off events. For 10/18 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 324 event pairs, 7 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 188. Up to 46 conditions per place. [2022-11-02 20:23:04,322 INFO L137 encePairwiseOnDemand]: 135/138 looper letters, 17 selfloop transitions, 2 changer transitions 0/107 dead transitions. [2022-11-02 20:23:04,322 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 107 transitions, 260 flow [2022-11-02 20:23:04,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:23:04,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:23:04,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 341 transitions. [2022-11-02 20:23:04,325 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8236714975845411 [2022-11-02 20:23:04,325 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 341 transitions. [2022-11-02 20:23:04,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 341 transitions. [2022-11-02 20:23:04,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:04,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 341 transitions. [2022-11-02 20:23:04,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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) [2022-11-02 20:23:04,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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) [2022-11-02 20:23:04,332 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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) [2022-11-02 20:23:04,332 INFO L175 Difference]: Start difference. First operand has 111 places, 108 transitions, 224 flow. Second operand 3 states and 341 transitions. [2022-11-02 20:23:04,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 107 transitions, 260 flow [2022-11-02 20:23:04,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 107 transitions, 256 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:23:04,337 INFO L231 Difference]: Finished difference. Result has 109 places, 107 transitions, 222 flow [2022-11-02 20:23:04,337 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=109, PETRI_TRANSITIONS=107} [2022-11-02 20:23:04,338 INFO L287 CegarLoopForPetriNet]: 119 programPoint places, -10 predicate places. [2022-11-02 20:23:04,339 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 107 transitions, 222 flow [2022-11-02 20:23:04,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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) [2022-11-02 20:23:04,340 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:04,340 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:04,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:23:04,341 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-11-02 20:23:04,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:04,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1378999312, now seen corresponding path program 1 times [2022-11-02 20:23:04,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:04,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336273177] [2022-11-02 20:23:04,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:04,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:04,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:04,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:04,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:04,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336273177] [2022-11-02 20:23:04,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336273177] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:04,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:04,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:23:04,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898254233] [2022-11-02 20:23:04,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:04,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:23:04,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:04,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:23:04,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:23:04,405 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 138 [2022-11-02 20:23:04,405 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 107 transitions, 222 flow. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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) [2022-11-02 20:23:04,406 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:04,406 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 138 [2022-11-02 20:23:04,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:04,469 INFO L130 PetriNetUnfolder]: 16/153 cut-off events. [2022-11-02 20:23:04,469 INFO L131 PetriNetUnfolder]: For 4/9 co-relation queries the response was YES. [2022-11-02 20:23:04,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 153 events. 16/153 cut-off events. For 4/9 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 265 event pairs, 6 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 159. Up to 32 conditions per place. [2022-11-02 20:23:04,471 INFO L137 encePairwiseOnDemand]: 134/138 looper letters, 13 selfloop transitions, 1 changer transitions 0/104 dead transitions. [2022-11-02 20:23:04,471 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 104 transitions, 244 flow [2022-11-02 20:23:04,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:23:04,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:23:04,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 347 transitions. [2022-11-02 20:23:04,474 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8381642512077294 [2022-11-02 20:23:04,474 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 347 transitions. [2022-11-02 20:23:04,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 347 transitions. [2022-11-02 20:23:04,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:04,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 347 transitions. [2022-11-02 20:23:04,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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) [2022-11-02 20:23:04,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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) [2022-11-02 20:23:04,480 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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) [2022-11-02 20:23:04,481 INFO L175 Difference]: Start difference. First operand has 109 places, 107 transitions, 222 flow. Second operand 3 states and 347 transitions. [2022-11-02 20:23:04,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 104 transitions, 244 flow [2022-11-02 20:23:04,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 104 transitions, 240 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:23:04,485 INFO L231 Difference]: Finished difference. Result has 106 places, 104 transitions, 214 flow [2022-11-02 20:23:04,486 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=214, PETRI_PLACES=106, PETRI_TRANSITIONS=104} [2022-11-02 20:23:04,487 INFO L287 CegarLoopForPetriNet]: 119 programPoint places, -13 predicate places. [2022-11-02 20:23:04,487 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 104 transitions, 214 flow [2022-11-02 20:23:04,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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) [2022-11-02 20:23:04,488 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:04,488 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:04,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:23:04,489 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-11-02 20:23:04,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:04,490 INFO L85 PathProgramCache]: Analyzing trace with hash -277978716, now seen corresponding path program 1 times [2022-11-02 20:23:04,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:04,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917835421] [2022-11-02 20:23:04,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:04,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:04,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:04,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:04,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917835421] [2022-11-02 20:23:04,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917835421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:04,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:04,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:23:04,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576428368] [2022-11-02 20:23:04,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:04,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:23:04,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:04,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:23:04,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:23:04,553 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 138 [2022-11-02 20:23:04,554 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 104 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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) [2022-11-02 20:23:04,554 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:04,554 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 138 [2022-11-02 20:23:04,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:04,644 INFO L130 PetriNetUnfolder]: 24/203 cut-off events. [2022-11-02 20:23:04,644 INFO L131 PetriNetUnfolder]: For 10/17 co-relation queries the response was YES. [2022-11-02 20:23:04,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 203 events. 24/203 cut-off events. For 10/17 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 517 event pairs, 2 based on Foata normal form. 2/185 useless extension candidates. Maximal degree in co-relation 221. Up to 36 conditions per place. [2022-11-02 20:23:04,647 INFO L137 encePairwiseOnDemand]: 133/138 looper letters, 15 selfloop transitions, 2 changer transitions 4/106 dead transitions. [2022-11-02 20:23:04,647 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 106 transitions, 257 flow [2022-11-02 20:23:04,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:23:04,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:23:04,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2022-11-02 20:23:04,650 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8478260869565217 [2022-11-02 20:23:04,650 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 351 transitions. [2022-11-02 20:23:04,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 351 transitions. [2022-11-02 20:23:04,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:04,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 351 transitions. [2022-11-02 20:23:04,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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) [2022-11-02 20:23:04,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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) [2022-11-02 20:23:04,655 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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) [2022-11-02 20:23:04,655 INFO L175 Difference]: Start difference. First operand has 106 places, 104 transitions, 214 flow. Second operand 3 states and 351 transitions. [2022-11-02 20:23:04,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 106 transitions, 257 flow [2022-11-02 20:23:04,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 106 transitions, 256 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:23:04,660 INFO L231 Difference]: Finished difference. Result has 105 places, 98 transitions, 209 flow [2022-11-02 20:23:04,660 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=209, PETRI_PLACES=105, PETRI_TRANSITIONS=98} [2022-11-02 20:23:04,661 INFO L287 CegarLoopForPetriNet]: 119 programPoint places, -14 predicate places. [2022-11-02 20:23:04,661 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 98 transitions, 209 flow [2022-11-02 20:23:04,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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) [2022-11-02 20:23:04,662 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:04,662 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:04,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:23:04,663 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-11-02 20:23:04,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:04,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1209366011, now seen corresponding path program 1 times [2022-11-02 20:23:04,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:04,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128723199] [2022-11-02 20:23:04,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:04,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:05,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:05,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:05,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128723199] [2022-11-02 20:23:05,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128723199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:05,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:05,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:23:05,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482838323] [2022-11-02 20:23:05,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:05,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:23:05,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:05,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:23:05,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:23:05,351 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 138 [2022-11-02 20:23:05,352 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 98 transitions, 209 flow. Second operand has 6 states, 6 states have (on average 105.83333333333333) internal successors, (635), 6 states have internal predecessors, (635), 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) [2022-11-02 20:23:05,353 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:05,353 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 138 [2022-11-02 20:23:05,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:05,522 INFO L130 PetriNetUnfolder]: 87/331 cut-off events. [2022-11-02 20:23:05,522 INFO L131 PetriNetUnfolder]: For 2/14 co-relation queries the response was YES. [2022-11-02 20:23:05,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 505 conditions, 331 events. 87/331 cut-off events. For 2/14 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1261 event pairs, 6 based on Foata normal form. 8/317 useless extension candidates. Maximal degree in co-relation 467. Up to 72 conditions per place. [2022-11-02 20:23:05,526 INFO L137 encePairwiseOnDemand]: 133/138 looper letters, 25 selfloop transitions, 4 changer transitions 0/105 dead transitions. [2022-11-02 20:23:05,526 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 105 transitions, 281 flow [2022-11-02 20:23:05,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:23:05,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:23:05,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 654 transitions. [2022-11-02 20:23:05,530 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7898550724637681 [2022-11-02 20:23:05,530 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 654 transitions. [2022-11-02 20:23:05,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 654 transitions. [2022-11-02 20:23:05,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:05,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 654 transitions. [2022-11-02 20:23:05,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 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) [2022-11-02 20:23:05,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 138.0) internal successors, (966), 7 states have internal predecessors, (966), 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) [2022-11-02 20:23:05,537 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 138.0) internal successors, (966), 7 states have internal predecessors, (966), 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) [2022-11-02 20:23:05,537 INFO L175 Difference]: Start difference. First operand has 105 places, 98 transitions, 209 flow. Second operand 6 states and 654 transitions. [2022-11-02 20:23:05,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 105 transitions, 281 flow [2022-11-02 20:23:05,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 105 transitions, 281 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:23:05,541 INFO L231 Difference]: Finished difference. Result has 105 places, 97 transitions, 215 flow [2022-11-02 20:23:05,542 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=215, PETRI_PLACES=105, PETRI_TRANSITIONS=97} [2022-11-02 20:23:05,543 INFO L287 CegarLoopForPetriNet]: 119 programPoint places, -14 predicate places. [2022-11-02 20:23:05,543 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 97 transitions, 215 flow [2022-11-02 20:23:05,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 105.83333333333333) internal successors, (635), 6 states have internal predecessors, (635), 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) [2022-11-02 20:23:05,544 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:05,544 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:05,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:23:05,545 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-11-02 20:23:05,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:05,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1170826759, now seen corresponding path program 1 times [2022-11-02 20:23:05,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:05,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622741231] [2022-11-02 20:23:05,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:05,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:05,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:06,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:06,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:06,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622741231] [2022-11-02 20:23:06,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622741231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:06,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:06,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:23:06,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022210402] [2022-11-02 20:23:06,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:06,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:23:06,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:06,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:23:06,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:23:06,178 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 138 [2022-11-02 20:23:06,180 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 97 transitions, 215 flow. Second operand has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 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) [2022-11-02 20:23:06,180 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:06,181 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 138 [2022-11-02 20:23:06,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:06,376 INFO L130 PetriNetUnfolder]: 58/265 cut-off events. [2022-11-02 20:23:06,376 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-02 20:23:06,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 430 conditions, 265 events. 58/265 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 942 event pairs, 29 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 391. Up to 94 conditions per place. [2022-11-02 20:23:06,379 INFO L137 encePairwiseOnDemand]: 133/138 looper letters, 20 selfloop transitions, 4 changer transitions 0/100 dead transitions. [2022-11-02 20:23:06,379 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 100 transitions, 269 flow [2022-11-02 20:23:06,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:23:06,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:23:06,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 649 transitions. [2022-11-02 20:23:06,383 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.783816425120773 [2022-11-02 20:23:06,383 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 649 transitions. [2022-11-02 20:23:06,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 649 transitions. [2022-11-02 20:23:06,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:06,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 649 transitions. [2022-11-02 20:23:06,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 108.16666666666667) internal successors, (649), 6 states have internal predecessors, (649), 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) [2022-11-02 20:23:06,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 138.0) internal successors, (966), 7 states have internal predecessors, (966), 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) [2022-11-02 20:23:06,391 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 138.0) internal successors, (966), 7 states have internal predecessors, (966), 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) [2022-11-02 20:23:06,391 INFO L175 Difference]: Start difference. First operand has 105 places, 97 transitions, 215 flow. Second operand 6 states and 649 transitions. [2022-11-02 20:23:06,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 100 transitions, 269 flow [2022-11-02 20:23:06,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 100 transitions, 262 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:23:06,396 INFO L231 Difference]: Finished difference. Result has 105 places, 96 transitions, 214 flow [2022-11-02 20:23:06,397 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=214, PETRI_PLACES=105, PETRI_TRANSITIONS=96} [2022-11-02 20:23:06,398 INFO L287 CegarLoopForPetriNet]: 119 programPoint places, -14 predicate places. [2022-11-02 20:23:06,398 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 96 transitions, 214 flow [2022-11-02 20:23:06,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 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) [2022-11-02 20:23:06,399 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:06,399 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:06,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:23:06,400 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-11-02 20:23:06,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:06,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1910267074, now seen corresponding path program 1 times [2022-11-02 20:23:06,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:06,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444527079] [2022-11-02 20:23:06,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:06,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:06,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:06,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:06,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444527079] [2022-11-02 20:23:06,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444527079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:06,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:06,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:23:06,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440754809] [2022-11-02 20:23:06,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:06,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:23:06,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:06,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:23:06,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:23:06,512 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 138 [2022-11-02 20:23:06,513 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 96 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2022-11-02 20:23:06,513 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:06,513 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 138 [2022-11-02 20:23:06,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:06,564 INFO L130 PetriNetUnfolder]: 15/185 cut-off events. [2022-11-02 20:23:06,564 INFO L131 PetriNetUnfolder]: For 7/10 co-relation queries the response was YES. [2022-11-02 20:23:06,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 185 events. 15/185 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 434 event pairs, 2 based on Foata normal form. 1/174 useless extension candidates. Maximal degree in co-relation 210. Up to 26 conditions per place. [2022-11-02 20:23:06,565 INFO L137 encePairwiseOnDemand]: 136/138 looper letters, 0 selfloop transitions, 0 changer transitions 95/95 dead transitions. [2022-11-02 20:23:06,566 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 95 transitions, 226 flow [2022-11-02 20:23:06,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:23:06,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:23:06,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 365 transitions. [2022-11-02 20:23:06,568 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8816425120772947 [2022-11-02 20:23:06,568 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 365 transitions. [2022-11-02 20:23:06,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 365 transitions. [2022-11-02 20:23:06,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:06,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 365 transitions. [2022-11-02 20:23:06,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2022-11-02 20:23:06,572 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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) [2022-11-02 20:23:06,572 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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) [2022-11-02 20:23:06,573 INFO L175 Difference]: Start difference. First operand has 105 places, 96 transitions, 214 flow. Second operand 3 states and 365 transitions. [2022-11-02 20:23:06,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 95 transitions, 226 flow [2022-11-02 20:23:06,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 95 transitions, 219 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:23:06,576 INFO L231 Difference]: Finished difference. Result has 102 places, 0 transitions, 0 flow [2022-11-02 20:23:06,577 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=102, PETRI_TRANSITIONS=0} [2022-11-02 20:23:06,578 INFO L287 CegarLoopForPetriNet]: 119 programPoint places, -17 predicate places. [2022-11-02 20:23:06,579 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 0 transitions, 0 flow [2022-11-02 20:23:06,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2022-11-02 20:23:06,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (24 of 25 remaining) [2022-11-02 20:23:06,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2022-11-02 20:23:06,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2022-11-02 20:23:06,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2022-11-02 20:23:06,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2022-11-02 20:23:06,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2022-11-02 20:23:06,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2022-11-02 20:23:06,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2022-11-02 20:23:06,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2022-11-02 20:23:06,588 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2022-11-02 20:23:06,588 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2022-11-02 20:23:06,588 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2022-11-02 20:23:06,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2022-11-02 20:23:06,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2022-11-02 20:23:06,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2022-11-02 20:23:06,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2022-11-02 20:23:06,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 25 remaining) [2022-11-02 20:23:06,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 25 remaining) [2022-11-02 20:23:06,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2022-11-02 20:23:06,591 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2022-11-02 20:23:06,591 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2022-11-02 20:23:06,591 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2022-11-02 20:23:06,592 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2022-11-02 20:23:06,592 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2022-11-02 20:23:06,592 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2022-11-02 20:23:06,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:23:06,593 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:06,601 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 20:23:06,602 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:23:06,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:23:06 BasicIcfg [2022-11-02 20:23:06,617 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:23:06,621 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:23:06,621 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:23:06,621 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:23:06,622 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:23:02" (3/4) ... [2022-11-02 20:23:06,626 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 20:23:06,633 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-02 20:23:06,633 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-02 20:23:06,642 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-02 20:23:06,642 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-02 20:23:06,642 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-02 20:23:06,643 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 20:23:06,701 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8897338-c061-4cb2-a2db-ba3fadb26a7d/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 20:23:06,702 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:23:06,702 INFO L158 Benchmark]: Toolchain (without parser) took 5283.07ms. Allocated memory was 109.1MB in the beginning and 174.1MB in the end (delta: 65.0MB). Free memory was 69.3MB in the beginning and 94.2MB in the end (delta: -25.0MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2022-11-02 20:23:06,703 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 109.1MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:23:06,703 INFO L158 Benchmark]: CACSL2BoogieTranslator took 398.26ms. Allocated memory is still 109.1MB. Free memory was 69.1MB in the beginning and 83.5MB in the end (delta: -14.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:23:06,704 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.37ms. Allocated memory is still 109.1MB. Free memory was 83.5MB in the beginning and 82.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:23:06,704 INFO L158 Benchmark]: Boogie Preprocessor took 36.57ms. Allocated memory is still 109.1MB. Free memory was 81.5MB in the beginning and 80.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:23:06,704 INFO L158 Benchmark]: RCFGBuilder took 896.84ms. Allocated memory is still 109.1MB. Free memory was 80.1MB in the beginning and 60.1MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-02 20:23:06,710 INFO L158 Benchmark]: TraceAbstraction took 3811.43ms. Allocated memory was 109.1MB in the beginning and 174.1MB in the end (delta: 65.0MB). Free memory was 59.6MB in the beginning and 97.4MB in the end (delta: -37.8MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2022-11-02 20:23:06,710 INFO L158 Benchmark]: Witness Printer took 80.78ms. Allocated memory is still 174.1MB. Free memory was 97.4MB in the beginning and 94.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:23:06,713 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 109.1MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 398.26ms. Allocated memory is still 109.1MB. Free memory was 69.1MB in the beginning and 83.5MB in the end (delta: -14.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.37ms. Allocated memory is still 109.1MB. Free memory was 83.5MB in the beginning and 82.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.57ms. Allocated memory is still 109.1MB. Free memory was 81.5MB in the beginning and 80.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 896.84ms. Allocated memory is still 109.1MB. Free memory was 80.1MB in the beginning and 60.1MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3811.43ms. Allocated memory was 109.1MB in the beginning and 174.1MB in the end (delta: 65.0MB). Free memory was 59.6MB in the beginning and 97.4MB in the end (delta: -37.8MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. * Witness Printer took 80.78ms. Allocated memory is still 174.1MB. Free memory was 97.4MB in the beginning and 94.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 160 locations, 25 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 52 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 59 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 219 IncrementalHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 52 mSDtfsCounter, 219 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=248occurred in iteration=0, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 339 NumberOfCodeBlocks, 339 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 332 ConstructedInterpolants, 0 QuantifiedInterpolants, 504 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-02 20:23:06,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8897338-c061-4cb2-a2db-ba3fadb26a7d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE