./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46817bf-4de8-4b03-a1f6-e09991c83348/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46817bf-4de8-4b03-a1f6-e09991c83348/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46817bf-4de8-4b03-a1f6-e09991c83348/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46817bf-4de8-4b03-a1f6-e09991c83348/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46817bf-4de8-4b03-a1f6-e09991c83348/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46817bf-4de8-4b03-a1f6-e09991c83348/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 10:58:59,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 10:58:59,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 10:58:59,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 10:58:59,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 10:58:59,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 10:58:59,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 10:58:59,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 10:58:59,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 10:58:59,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 10:58:59,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 10:58:59,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 10:58:59,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 10:58:59,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 10:58:59,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 10:58:59,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 10:58:59,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 10:58:59,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 10:58:59,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 10:58:59,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 10:58:59,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 10:58:59,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 10:58:59,755 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 10:58:59,756 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 10:58:59,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 10:58:59,760 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 10:58:59,761 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 10:58:59,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 10:58:59,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 10:58:59,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 10:58:59,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 10:58:59,765 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 10:58:59,766 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 10:58:59,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 10:58:59,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 10:58:59,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 10:58:59,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 10:58:59,782 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 10:58:59,782 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 10:58:59,784 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 10:58:59,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 10:58:59,785 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46817bf-4de8-4b03-a1f6-e09991c83348/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 10:58:59,813 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 10:58:59,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 10:58:59,814 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 10:58:59,814 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 10:58:59,815 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 10:58:59,815 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 10:58:59,816 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 10:58:59,816 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 10:58:59,817 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 10:58:59,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 10:58:59,817 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 10:58:59,818 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 10:58:59,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 10:58:59,818 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 10:58:59,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 10:58:59,819 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 10:58:59,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 10:58:59,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 10:58:59,819 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 10:58:59,820 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 10:58:59,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 10:58:59,820 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 10:58:59,821 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 10:58:59,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 10:58:59,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 10:58:59,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 10:58:59,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:58:59,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 10:58:59,822 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 10:58:59,823 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 10:58:59,823 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 10:58:59,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 10:58:59,823 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 10:58:59,824 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 10:58:59,824 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 10:58:59,824 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_f46817bf-4de8-4b03-a1f6-e09991c83348/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46817bf-4de8-4b03-a1f6-e09991c83348/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 [2022-11-16 10:59:00,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 10:59:00,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 10:59:00,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 10:59:00,177 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 10:59:00,178 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 10:59:00,180 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46817bf-4de8-4b03-a1f6-e09991c83348/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2022-11-16 10:59:00,280 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46817bf-4de8-4b03-a1f6-e09991c83348/bin/uautomizer-tPACEb0tL8/data/7beb35e8d/de6169012af14f779b66f03a043e1bb4/FLAG60d35baaa [2022-11-16 10:59:00,916 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 10:59:00,917 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46817bf-4de8-4b03-a1f6-e09991c83348/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2022-11-16 10:59:00,939 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46817bf-4de8-4b03-a1f6-e09991c83348/bin/uautomizer-tPACEb0tL8/data/7beb35e8d/de6169012af14f779b66f03a043e1bb4/FLAG60d35baaa [2022-11-16 10:59:01,165 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46817bf-4de8-4b03-a1f6-e09991c83348/bin/uautomizer-tPACEb0tL8/data/7beb35e8d/de6169012af14f779b66f03a043e1bb4 [2022-11-16 10:59:01,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 10:59:01,173 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 10:59:01,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 10:59:01,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 10:59:01,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 10:59:01,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:59:01" (1/1) ... [2022-11-16 10:59:01,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f4233b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:01, skipping insertion in model container [2022-11-16 10:59:01,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:59:01" (1/1) ... [2022-11-16 10:59:01,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 10:59:01,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 10:59:01,523 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46817bf-4de8-4b03-a1f6-e09991c83348/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2022-11-16 10:59:01,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:59:01,759 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 10:59:01,779 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46817bf-4de8-4b03-a1f6-e09991c83348/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2022-11-16 10:59:01,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:59:01,911 INFO L208 MainTranslator]: Completed translation [2022-11-16 10:59:01,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:01 WrapperNode [2022-11-16 10:59:01,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 10:59:01,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 10:59:01,914 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 10:59:01,914 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 10:59:01,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:01" (1/1) ... [2022-11-16 10:59:01,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:01" (1/1) ... [2022-11-16 10:59:02,006 INFO L138 Inliner]: procedures = 163, calls = 52, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 122 [2022-11-16 10:59:02,008 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 10:59:02,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 10:59:02,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 10:59:02,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 10:59:02,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:01" (1/1) ... [2022-11-16 10:59:02,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:01" (1/1) ... [2022-11-16 10:59:02,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:01" (1/1) ... [2022-11-16 10:59:02,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:01" (1/1) ... [2022-11-16 10:59:02,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:01" (1/1) ... [2022-11-16 10:59:02,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:01" (1/1) ... [2022-11-16 10:59:02,059 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:01" (1/1) ... [2022-11-16 10:59:02,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:01" (1/1) ... [2022-11-16 10:59:02,064 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 10:59:02,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 10:59:02,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 10:59:02,066 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 10:59:02,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:01" (1/1) ... [2022-11-16 10:59:02,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:59:02,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46817bf-4de8-4b03-a1f6-e09991c83348/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:59:02,128 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46817bf-4de8-4b03-a1f6-e09991c83348/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 10:59:02,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46817bf-4de8-4b03-a1f6-e09991c83348/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 10:59:02,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 10:59:02,177 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-16 10:59:02,177 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-16 10:59:02,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 10:59:02,177 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 10:59:02,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 10:59:02,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 10:59:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 10:59:02,178 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 10:59:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 10:59:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 10:59:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 10:59:02,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 10:59:02,180 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 10:59:02,365 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 10:59:02,380 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 10:59:02,869 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 10:59:02,904 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 10:59:02,905 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 10:59:02,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:59:02 BoogieIcfgContainer [2022-11-16 10:59:02,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 10:59:02,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 10:59:02,910 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 10:59:02,914 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 10:59:02,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:59:01" (1/3) ... [2022-11-16 10:59:02,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@738fa9b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:59:02, skipping insertion in model container [2022-11-16 10:59:02,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:01" (2/3) ... [2022-11-16 10:59:02,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@738fa9b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:59:02, skipping insertion in model container [2022-11-16 10:59:02,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:59:02" (3/3) ... [2022-11-16 10:59:02,918 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2022-11-16 10:59:02,929 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 10:59:02,941 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 10:59:02,942 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-16 10:59:02,942 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 10:59:03,068 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 10:59:03,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 214 places, 211 transitions, 438 flow [2022-11-16 10:59:03,303 INFO L130 PetriNetUnfolder]: 4/209 cut-off events. [2022-11-16 10:59:03,304 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 10:59:03,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 209 events. 4/209 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 252 event pairs, 0 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 153. Up to 2 conditions per place. [2022-11-16 10:59:03,313 INFO L82 GeneralOperation]: Start removeDead. Operand has 214 places, 211 transitions, 438 flow [2022-11-16 10:59:03,333 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 202 places, 199 transitions, 407 flow [2022-11-16 10:59:03,350 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 10:59:03,358 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;@67bcd54b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 10:59:03,359 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-11-16 10:59:03,373 INFO L130 PetriNetUnfolder]: 0/55 cut-off events. [2022-11-16 10:59:03,373 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 10:59:03,373 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:59:03,374 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:59:03,375 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-16 10:59:03,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:59:03,381 INFO L85 PathProgramCache]: Analyzing trace with hash 561398268, now seen corresponding path program 1 times [2022-11-16 10:59:03,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:59:03,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402560028] [2022-11-16 10:59:03,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:59:03,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:59:03,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:59:03,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:59:03,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:59:03,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402560028] [2022-11-16 10:59:03,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402560028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:59:03,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:59:03,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:59:03,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667554371] [2022-11-16 10:59:03,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:59:03,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:59:03,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:59:03,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:59:03,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:59:03,942 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 211 [2022-11-16 10:59:03,947 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 199 transitions, 407 flow. Second operand has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:03,947 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:59:03,947 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 211 [2022-11-16 10:59:03,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:59:04,389 INFO L130 PetriNetUnfolder]: 109/1046 cut-off events. [2022-11-16 10:59:04,389 INFO L131 PetriNetUnfolder]: For 21/24 co-relation queries the response was YES. [2022-11-16 10:59:04,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1335 conditions, 1046 events. 109/1046 cut-off events. For 21/24 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 6145 event pairs, 39 based on Foata normal form. 54/963 useless extension candidates. Maximal degree in co-relation 1265. Up to 169 conditions per place. [2022-11-16 10:59:04,409 INFO L137 encePairwiseOnDemand]: 192/211 looper letters, 26 selfloop transitions, 10 changer transitions 0/203 dead transitions. [2022-11-16 10:59:04,410 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 203 transitions, 493 flow [2022-11-16 10:59:04,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:59:04,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:59:04,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 583 transitions. [2022-11-16 10:59:04,441 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9210110584518167 [2022-11-16 10:59:04,442 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 583 transitions. [2022-11-16 10:59:04,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 583 transitions. [2022-11-16 10:59:04,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:59:04,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 583 transitions. [2022-11-16 10:59:04,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:04,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:04,468 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:04,471 INFO L175 Difference]: Start difference. First operand has 202 places, 199 transitions, 407 flow. Second operand 3 states and 583 transitions. [2022-11-16 10:59:04,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 203 transitions, 493 flow [2022-11-16 10:59:04,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 203 transitions, 485 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 10:59:04,485 INFO L231 Difference]: Finished difference. Result has 197 places, 197 transitions, 460 flow [2022-11-16 10:59:04,488 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=460, PETRI_PLACES=197, PETRI_TRANSITIONS=197} [2022-11-16 10:59:04,496 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, -5 predicate places. [2022-11-16 10:59:04,497 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 197 transitions, 460 flow [2022-11-16 10:59:04,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:04,498 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:59:04,499 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:59:04,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 10:59:04,500 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-16 10:59:04,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:59:04,502 INFO L85 PathProgramCache]: Analyzing trace with hash 242194887, now seen corresponding path program 1 times [2022-11-16 10:59:04,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:59:04,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146444462] [2022-11-16 10:59:04,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:59:04,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:59:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:59:04,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:59:04,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:59:04,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146444462] [2022-11-16 10:59:04,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146444462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:59:04,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:59:04,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:59:04,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403893551] [2022-11-16 10:59:04,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:59:04,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:59:04,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:59:04,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:59:04,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:59:04,699 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 211 [2022-11-16 10:59:04,700 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 197 transitions, 460 flow. Second operand has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:04,700 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:59:04,700 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 211 [2022-11-16 10:59:04,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:59:05,128 INFO L130 PetriNetUnfolder]: 128/1278 cut-off events. [2022-11-16 10:59:05,128 INFO L131 PetriNetUnfolder]: For 230/254 co-relation queries the response was YES. [2022-11-16 10:59:05,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1853 conditions, 1278 events. 128/1278 cut-off events. For 230/254 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 8285 event pairs, 54 based on Foata normal form. 2/1159 useless extension candidates. Maximal degree in co-relation 1708. Up to 257 conditions per place. [2022-11-16 10:59:05,147 INFO L137 encePairwiseOnDemand]: 204/211 looper letters, 41 selfloop transitions, 8 changer transitions 0/214 dead transitions. [2022-11-16 10:59:05,147 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 214 transitions, 634 flow [2022-11-16 10:59:05,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:59:05,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:59:05,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 565 transitions. [2022-11-16 10:59:05,150 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8925750394944708 [2022-11-16 10:59:05,150 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 565 transitions. [2022-11-16 10:59:05,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 565 transitions. [2022-11-16 10:59:05,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:59:05,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 565 transitions. [2022-11-16 10:59:05,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:05,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:05,156 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:05,157 INFO L175 Difference]: Start difference. First operand has 197 places, 197 transitions, 460 flow. Second operand 3 states and 565 transitions. [2022-11-16 10:59:05,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 214 transitions, 634 flow [2022-11-16 10:59:05,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 214 transitions, 602 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:59:05,168 INFO L231 Difference]: Finished difference. Result has 199 places, 204 transitions, 512 flow [2022-11-16 10:59:05,169 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=512, PETRI_PLACES=199, PETRI_TRANSITIONS=204} [2022-11-16 10:59:05,170 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, -3 predicate places. [2022-11-16 10:59:05,171 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 204 transitions, 512 flow [2022-11-16 10:59:05,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:05,171 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:59:05,172 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:59:05,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 10:59:05,173 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-16 10:59:05,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:59:05,174 INFO L85 PathProgramCache]: Analyzing trace with hash 81384412, now seen corresponding path program 1 times [2022-11-16 10:59:05,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:59:05,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56414581] [2022-11-16 10:59:05,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:59:05,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:59:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:59:05,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:59:05,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:59:05,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56414581] [2022-11-16 10:59:05,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56414581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:59:05,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:59:05,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:59:05,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290292769] [2022-11-16 10:59:05,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:59:05,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:59:05,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:59:05,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:59:05,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:59:05,251 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 211 [2022-11-16 10:59:05,252 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 204 transitions, 512 flow. Second operand has 3 states, 3 states have (on average 185.33333333333334) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:05,253 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:59:05,253 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 211 [2022-11-16 10:59:05,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:59:06,236 INFO L130 PetriNetUnfolder]: 513/4742 cut-off events. [2022-11-16 10:59:06,237 INFO L131 PetriNetUnfolder]: For 452/502 co-relation queries the response was YES. [2022-11-16 10:59:06,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6381 conditions, 4742 events. 513/4742 cut-off events. For 452/502 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 50342 event pairs, 119 based on Foata normal form. 12/4107 useless extension candidates. Maximal degree in co-relation 6324. Up to 428 conditions per place. [2022-11-16 10:59:06,283 INFO L137 encePairwiseOnDemand]: 202/211 looper letters, 19 selfloop transitions, 6 changer transitions 0/211 dead transitions. [2022-11-16 10:59:06,284 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 211 transitions, 577 flow [2022-11-16 10:59:06,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:59:06,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:59:06,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 580 transitions. [2022-11-16 10:59:06,287 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9162717219589257 [2022-11-16 10:59:06,288 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 580 transitions. [2022-11-16 10:59:06,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 580 transitions. [2022-11-16 10:59:06,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:59:06,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 580 transitions. [2022-11-16 10:59:06,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:06,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:06,295 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:06,296 INFO L175 Difference]: Start difference. First operand has 199 places, 204 transitions, 512 flow. Second operand 3 states and 580 transitions. [2022-11-16 10:59:06,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 211 transitions, 577 flow [2022-11-16 10:59:06,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 211 transitions, 561 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:59:06,307 INFO L231 Difference]: Finished difference. Result has 199 places, 206 transitions, 534 flow [2022-11-16 10:59:06,308 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=534, PETRI_PLACES=199, PETRI_TRANSITIONS=206} [2022-11-16 10:59:06,311 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, -3 predicate places. [2022-11-16 10:59:06,311 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 206 transitions, 534 flow [2022-11-16 10:59:06,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.33333333333334) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:06,312 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:59:06,312 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:59:06,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 10:59:06,313 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-16 10:59:06,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:59:06,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1142088635, now seen corresponding path program 1 times [2022-11-16 10:59:06,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:59:06,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017299955] [2022-11-16 10:59:06,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:59:06,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:59:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:59:06,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:59:06,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:59:06,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017299955] [2022-11-16 10:59:06,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017299955] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:59:06,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:59:06,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:59:06,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428243939] [2022-11-16 10:59:06,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:59:06,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:59:06,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:59:06,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:59:06,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:59:06,409 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 211 [2022-11-16 10:59:06,411 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 206 transitions, 534 flow. Second operand has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:06,411 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:59:06,411 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 211 [2022-11-16 10:59:06,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:59:07,497 INFO L130 PetriNetUnfolder]: 580/5384 cut-off events. [2022-11-16 10:59:07,497 INFO L131 PetriNetUnfolder]: For 820/1330 co-relation queries the response was YES. [2022-11-16 10:59:07,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7608 conditions, 5384 events. 580/5384 cut-off events. For 820/1330 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 59541 event pairs, 190 based on Foata normal form. 22/4750 useless extension candidates. Maximal degree in co-relation 7550. Up to 559 conditions per place. [2022-11-16 10:59:07,553 INFO L137 encePairwiseOnDemand]: 206/211 looper letters, 25 selfloop transitions, 4 changer transitions 0/213 dead transitions. [2022-11-16 10:59:07,553 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 213 transitions, 619 flow [2022-11-16 10:59:07,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:59:07,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:59:07,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 571 transitions. [2022-11-16 10:59:07,556 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9020537124802528 [2022-11-16 10:59:07,556 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 571 transitions. [2022-11-16 10:59:07,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 571 transitions. [2022-11-16 10:59:07,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:59:07,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 571 transitions. [2022-11-16 10:59:07,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:07,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:07,562 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:07,562 INFO L175 Difference]: Start difference. First operand has 199 places, 206 transitions, 534 flow. Second operand 3 states and 571 transitions. [2022-11-16 10:59:07,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 213 transitions, 619 flow [2022-11-16 10:59:07,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 213 transitions, 603 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:59:07,569 INFO L231 Difference]: Finished difference. Result has 201 places, 209 transitions, 554 flow [2022-11-16 10:59:07,570 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=554, PETRI_PLACES=201, PETRI_TRANSITIONS=209} [2022-11-16 10:59:07,571 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, -1 predicate places. [2022-11-16 10:59:07,571 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 209 transitions, 554 flow [2022-11-16 10:59:07,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:07,572 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:59:07,572 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:59:07,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 10:59:07,573 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-16 10:59:07,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:59:07,574 INFO L85 PathProgramCache]: Analyzing trace with hash 2038923310, now seen corresponding path program 1 times [2022-11-16 10:59:07,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:59:07,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067500627] [2022-11-16 10:59:07,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:59:07,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:59:07,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:59:07,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:59:07,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:59:07,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067500627] [2022-11-16 10:59:07,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067500627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:59:07,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:59:07,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:59:07,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826776699] [2022-11-16 10:59:07,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:59:07,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:59:07,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:59:07,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:59:07,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:59:07,642 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 211 [2022-11-16 10:59:07,643 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 209 transitions, 554 flow. Second operand has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:07,643 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:59:07,643 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 211 [2022-11-16 10:59:07,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:59:09,123 INFO L130 PetriNetUnfolder]: 634/6861 cut-off events. [2022-11-16 10:59:09,123 INFO L131 PetriNetUnfolder]: For 1207/1580 co-relation queries the response was YES. [2022-11-16 10:59:09,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9816 conditions, 6861 events. 634/6861 cut-off events. For 1207/1580 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 80765 event pairs, 196 based on Foata normal form. 26/6113 useless extension candidates. Maximal degree in co-relation 9675. Up to 840 conditions per place. [2022-11-16 10:59:09,203 INFO L137 encePairwiseOnDemand]: 204/211 looper letters, 47 selfloop transitions, 8 changer transitions 0/226 dead transitions. [2022-11-16 10:59:09,204 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 226 transitions, 738 flow [2022-11-16 10:59:09,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:59:09,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:59:09,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 565 transitions. [2022-11-16 10:59:09,206 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8925750394944708 [2022-11-16 10:59:09,207 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 565 transitions. [2022-11-16 10:59:09,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 565 transitions. [2022-11-16 10:59:09,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:59:09,208 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 565 transitions. [2022-11-16 10:59:09,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:09,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:09,212 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:09,212 INFO L175 Difference]: Start difference. First operand has 201 places, 209 transitions, 554 flow. Second operand 3 states and 565 transitions. [2022-11-16 10:59:09,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 226 transitions, 738 flow [2022-11-16 10:59:09,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 226 transitions, 730 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:59:09,222 INFO L231 Difference]: Finished difference. Result has 203 places, 216 transitions, 628 flow [2022-11-16 10:59:09,223 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=628, PETRI_PLACES=203, PETRI_TRANSITIONS=216} [2022-11-16 10:59:09,226 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, 1 predicate places. [2022-11-16 10:59:09,227 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 216 transitions, 628 flow [2022-11-16 10:59:09,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:09,228 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:59:09,228 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:59:09,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 10:59:09,228 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-16 10:59:09,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:59:09,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1573573558, now seen corresponding path program 1 times [2022-11-16 10:59:09,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:59:09,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21938438] [2022-11-16 10:59:09,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:59:09,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:59:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:59:09,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:59:09,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:59:09,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21938438] [2022-11-16 10:59:09,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21938438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:59:09,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:59:09,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 10:59:09,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930014251] [2022-11-16 10:59:09,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:59:09,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:59:09,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:59:09,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:59:09,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:59:09,664 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 211 [2022-11-16 10:59:09,665 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 216 transitions, 628 flow. Second operand has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:09,666 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:59:09,666 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 211 [2022-11-16 10:59:09,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:59:12,086 INFO L130 PetriNetUnfolder]: 2143/12745 cut-off events. [2022-11-16 10:59:12,086 INFO L131 PetriNetUnfolder]: For 1706/1848 co-relation queries the response was YES. [2022-11-16 10:59:12,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19712 conditions, 12745 events. 2143/12745 cut-off events. For 1706/1848 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 157420 event pairs, 614 based on Foata normal form. 112/11720 useless extension candidates. Maximal degree in co-relation 19569. Up to 1891 conditions per place. [2022-11-16 10:59:12,214 INFO L137 encePairwiseOnDemand]: 203/211 looper letters, 54 selfloop transitions, 8 changer transitions 0/239 dead transitions. [2022-11-16 10:59:12,214 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 239 transitions, 800 flow [2022-11-16 10:59:12,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 10:59:12,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 10:59:12,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 879 transitions. [2022-11-16 10:59:12,218 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.833175355450237 [2022-11-16 10:59:12,219 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 879 transitions. [2022-11-16 10:59:12,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 879 transitions. [2022-11-16 10:59:12,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:59:12,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 879 transitions. [2022-11-16 10:59:12,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 175.8) internal successors, (879), 5 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:12,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 211.0) internal successors, (1266), 6 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:12,228 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 211.0) internal successors, (1266), 6 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:12,229 INFO L175 Difference]: Start difference. First operand has 203 places, 216 transitions, 628 flow. Second operand 5 states and 879 transitions. [2022-11-16 10:59:12,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 239 transitions, 800 flow [2022-11-16 10:59:12,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 239 transitions, 774 flow, removed 5 selfloop flow, removed 2 redundant places. [2022-11-16 10:59:12,251 INFO L231 Difference]: Finished difference. Result has 206 places, 220 transitions, 640 flow [2022-11-16 10:59:12,252 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=640, PETRI_PLACES=206, PETRI_TRANSITIONS=220} [2022-11-16 10:59:12,254 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, 4 predicate places. [2022-11-16 10:59:12,255 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 220 transitions, 640 flow [2022-11-16 10:59:12,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:12,256 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:59:12,256 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:59:12,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 10:59:12,257 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2_funErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-16 10:59:12,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:59:12,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1005581268, now seen corresponding path program 1 times [2022-11-16 10:59:12,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:59:12,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646641713] [2022-11-16 10:59:12,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:59:12,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:59:12,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:59:12,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:59:12,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:59:12,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646641713] [2022-11-16 10:59:12,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646641713] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:59:12,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:59:12,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:59:12,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333357140] [2022-11-16 10:59:12,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:59:12,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:59:12,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:59:12,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:59:12,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:59:12,404 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 211 [2022-11-16 10:59:12,405 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 220 transitions, 640 flow. Second operand has 3 states, 3 states have (on average 185.66666666666666) internal successors, (557), 3 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:12,405 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:59:12,406 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 211 [2022-11-16 10:59:12,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:59:13,802 INFO L130 PetriNetUnfolder]: 594/8266 cut-off events. [2022-11-16 10:59:13,802 INFO L131 PetriNetUnfolder]: For 915/1169 co-relation queries the response was YES. [2022-11-16 10:59:13,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11792 conditions, 8266 events. 594/8266 cut-off events. For 915/1169 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 103504 event pairs, 173 based on Foata normal form. 8/7446 useless extension candidates. Maximal degree in co-relation 11729. Up to 747 conditions per place. [2022-11-16 10:59:13,862 INFO L137 encePairwiseOnDemand]: 206/211 looper letters, 27 selfloop transitions, 4 changer transitions 0/227 dead transitions. [2022-11-16 10:59:13,862 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 227 transitions, 727 flow [2022-11-16 10:59:13,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:59:13,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:59:13,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 571 transitions. [2022-11-16 10:59:13,866 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9020537124802528 [2022-11-16 10:59:13,867 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 571 transitions. [2022-11-16 10:59:13,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 571 transitions. [2022-11-16 10:59:13,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:59:13,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 571 transitions. [2022-11-16 10:59:13,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:13,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:13,872 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:13,872 INFO L175 Difference]: Start difference. First operand has 206 places, 220 transitions, 640 flow. Second operand 3 states and 571 transitions. [2022-11-16 10:59:13,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 227 transitions, 727 flow [2022-11-16 10:59:13,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 227 transitions, 724 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:59:13,885 INFO L231 Difference]: Finished difference. Result has 208 places, 223 transitions, 671 flow [2022-11-16 10:59:13,887 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=671, PETRI_PLACES=208, PETRI_TRANSITIONS=223} [2022-11-16 10:59:13,887 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, 6 predicate places. [2022-11-16 10:59:13,888 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 223 transitions, 671 flow [2022-11-16 10:59:13,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.66666666666666) internal successors, (557), 3 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:13,888 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:59:13,889 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:59:13,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 10:59:13,889 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-16 10:59:13,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:59:13,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1401995640, now seen corresponding path program 1 times [2022-11-16 10:59:13,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:59:13,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738483204] [2022-11-16 10:59:13,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:59:13,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:59:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:59:14,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:59:14,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:59:14,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738483204] [2022-11-16 10:59:14,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738483204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:59:14,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:59:14,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 10:59:14,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838109979] [2022-11-16 10:59:14,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:59:14,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:59:14,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:59:14,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:59:14,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:59:14,269 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 211 [2022-11-16 10:59:14,270 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 223 transitions, 671 flow. Second operand has 6 states, 6 states have (on average 166.83333333333334) internal successors, (1001), 6 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:14,271 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:59:14,271 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 211 [2022-11-16 10:59:14,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:59:15,854 INFO L130 PetriNetUnfolder]: 1196/8462 cut-off events. [2022-11-16 10:59:15,854 INFO L131 PetriNetUnfolder]: For 1574/1631 co-relation queries the response was YES. [2022-11-16 10:59:15,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14375 conditions, 8462 events. 1196/8462 cut-off events. For 1574/1631 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 94731 event pairs, 347 based on Foata normal form. 211/8178 useless extension candidates. Maximal degree in co-relation 11226. Up to 1519 conditions per place. [2022-11-16 10:59:15,904 INFO L137 encePairwiseOnDemand]: 191/211 looper letters, 43 selfloop transitions, 21 changer transitions 0/233 dead transitions. [2022-11-16 10:59:15,904 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 233 transitions, 814 flow [2022-11-16 10:59:15,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 10:59:15,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 10:59:15,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 880 transitions. [2022-11-16 10:59:15,909 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8341232227488151 [2022-11-16 10:59:15,909 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 880 transitions. [2022-11-16 10:59:15,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 880 transitions. [2022-11-16 10:59:15,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:59:15,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 880 transitions. [2022-11-16 10:59:15,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:15,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 211.0) internal successors, (1266), 6 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:15,917 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 211.0) internal successors, (1266), 6 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:15,917 INFO L175 Difference]: Start difference. First operand has 208 places, 223 transitions, 671 flow. Second operand 5 states and 880 transitions. [2022-11-16 10:59:15,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 233 transitions, 814 flow [2022-11-16 10:59:15,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 233 transitions, 792 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-11-16 10:59:15,931 INFO L231 Difference]: Finished difference. Result has 204 places, 223 transitions, 708 flow [2022-11-16 10:59:15,931 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=595, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=708, PETRI_PLACES=204, PETRI_TRANSITIONS=223} [2022-11-16 10:59:15,934 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, 2 predicate places. [2022-11-16 10:59:15,935 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 223 transitions, 708 flow [2022-11-16 10:59:15,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 166.83333333333334) internal successors, (1001), 6 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:15,936 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:59:15,936 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:59:15,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 10:59:15,936 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-16 10:59:15,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:59:15,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1716188418, now seen corresponding path program 1 times [2022-11-16 10:59:15,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:59:15,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819777784] [2022-11-16 10:59:15,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:59:15,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:59:15,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:59:16,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:59:16,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:59:16,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819777784] [2022-11-16 10:59:16,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819777784] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:59:16,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:59:16,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 10:59:16,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681313563] [2022-11-16 10:59:16,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:59:16,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 10:59:16,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:59:16,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 10:59:16,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 10:59:16,655 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 211 [2022-11-16 10:59:16,657 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 223 transitions, 708 flow. Second operand has 7 states, 7 states have (on average 161.28571428571428) internal successors, (1129), 7 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:16,657 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:59:16,657 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 211 [2022-11-16 10:59:16,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:59:17,329 INFO L130 PetriNetUnfolder]: 230/2549 cut-off events. [2022-11-16 10:59:17,330 INFO L131 PetriNetUnfolder]: For 821/877 co-relation queries the response was YES. [2022-11-16 10:59:17,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4639 conditions, 2549 events. 230/2549 cut-off events. For 821/877 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 19797 event pairs, 69 based on Foata normal form. 62/2511 useless extension candidates. Maximal degree in co-relation 2587. Up to 498 conditions per place. [2022-11-16 10:59:17,343 INFO L137 encePairwiseOnDemand]: 204/211 looper letters, 60 selfloop transitions, 8 changer transitions 0/205 dead transitions. [2022-11-16 10:59:17,344 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 205 transitions, 747 flow [2022-11-16 10:59:17,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:59:17,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 10:59:17,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 996 transitions. [2022-11-16 10:59:17,348 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7867298578199052 [2022-11-16 10:59:17,349 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 996 transitions. [2022-11-16 10:59:17,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 996 transitions. [2022-11-16 10:59:17,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:59:17,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 996 transitions. [2022-11-16 10:59:17,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:17,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:17,361 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:17,361 INFO L175 Difference]: Start difference. First operand has 204 places, 223 transitions, 708 flow. Second operand 6 states and 996 transitions. [2022-11-16 10:59:17,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 205 transitions, 747 flow [2022-11-16 10:59:17,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 205 transitions, 710 flow, removed 13 selfloop flow, removed 6 redundant places. [2022-11-16 10:59:17,371 INFO L231 Difference]: Finished difference. Result has 198 places, 196 transitions, 550 flow [2022-11-16 10:59:17,371 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=550, PETRI_PLACES=198, PETRI_TRANSITIONS=196} [2022-11-16 10:59:17,373 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, -4 predicate places. [2022-11-16 10:59:17,374 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 196 transitions, 550 flow [2022-11-16 10:59:17,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 161.28571428571428) internal successors, (1129), 7 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:17,375 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:59:17,375 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:59:17,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 10:59:17,375 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-16 10:59:17,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:59:17,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1714778980, now seen corresponding path program 1 times [2022-11-16 10:59:17,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:59:17,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312549147] [2022-11-16 10:59:17,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:59:17,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:59:17,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:59:18,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:59:18,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:59:18,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312549147] [2022-11-16 10:59:18,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312549147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:59:18,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:59:18,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:59:18,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115557665] [2022-11-16 10:59:18,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:59:18,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:59:18,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:59:18,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:59:18,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:59:18,160 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 211 [2022-11-16 10:59:18,161 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 196 transitions, 550 flow. Second operand has 6 states, 6 states have (on average 182.83333333333334) internal successors, (1097), 6 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:18,161 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:59:18,161 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 211 [2022-11-16 10:59:18,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:59:18,586 INFO L130 PetriNetUnfolder]: 108/2044 cut-off events. [2022-11-16 10:59:18,586 INFO L131 PetriNetUnfolder]: For 157/217 co-relation queries the response was YES. [2022-11-16 10:59:18,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3228 conditions, 2044 events. 108/2044 cut-off events. For 157/217 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 15166 event pairs, 41 based on Foata normal form. 40/2008 useless extension candidates. Maximal degree in co-relation 3161. Up to 232 conditions per place. [2022-11-16 10:59:18,596 INFO L137 encePairwiseOnDemand]: 206/211 looper letters, 14 selfloop transitions, 4 changer transitions 3/195 dead transitions. [2022-11-16 10:59:18,596 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 195 transitions, 584 flow [2022-11-16 10:59:18,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:59:18,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 10:59:18,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1105 transitions. [2022-11-16 10:59:18,601 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.872827804107425 [2022-11-16 10:59:18,601 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1105 transitions. [2022-11-16 10:59:18,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1105 transitions. [2022-11-16 10:59:18,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:59:18,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1105 transitions. [2022-11-16 10:59:18,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:18,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:18,610 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:18,611 INFO L175 Difference]: Start difference. First operand has 198 places, 196 transitions, 550 flow. Second operand 6 states and 1105 transitions. [2022-11-16 10:59:18,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 195 transitions, 584 flow [2022-11-16 10:59:18,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 195 transitions, 566 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 10:59:18,618 INFO L231 Difference]: Finished difference. Result has 197 places, 192 transitions, 532 flow [2022-11-16 10:59:18,619 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=532, PETRI_PLACES=197, PETRI_TRANSITIONS=192} [2022-11-16 10:59:18,620 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, -5 predicate places. [2022-11-16 10:59:18,620 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 192 transitions, 532 flow [2022-11-16 10:59:18,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 182.83333333333334) internal successors, (1097), 6 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:18,621 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:59:18,621 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:59:18,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 10:59:18,622 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-16 10:59:18,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:59:18,623 INFO L85 PathProgramCache]: Analyzing trace with hash 30619526, now seen corresponding path program 1 times [2022-11-16 10:59:18,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:59:18,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929468392] [2022-11-16 10:59:18,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:59:18,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:59:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:59:19,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:59:19,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:59:19,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929468392] [2022-11-16 10:59:19,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929468392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:59:19,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:59:19,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:59:19,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553413015] [2022-11-16 10:59:19,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:59:19,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:59:19,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:59:19,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:59:19,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:59:19,528 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 211 [2022-11-16 10:59:19,530 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 192 transitions, 532 flow. Second operand has 6 states, 6 states have (on average 183.83333333333334) internal successors, (1103), 6 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:19,530 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:59:19,530 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 211 [2022-11-16 10:59:19,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:59:19,961 INFO L130 PetriNetUnfolder]: 108/1994 cut-off events. [2022-11-16 10:59:19,961 INFO L131 PetriNetUnfolder]: For 123/173 co-relation queries the response was YES. [2022-11-16 10:59:19,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3154 conditions, 1994 events. 108/1994 cut-off events. For 123/173 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 14711 event pairs, 41 based on Foata normal form. 0/1968 useless extension candidates. Maximal degree in co-relation 3090. Up to 232 conditions per place. [2022-11-16 10:59:19,967 INFO L137 encePairwiseOnDemand]: 206/211 looper letters, 0 selfloop transitions, 0 changer transitions 191/191 dead transitions. [2022-11-16 10:59:19,967 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 191 transitions, 564 flow [2022-11-16 10:59:19,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:59:19,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 10:59:19,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1104 transitions. [2022-11-16 10:59:19,974 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8720379146919431 [2022-11-16 10:59:19,974 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1104 transitions. [2022-11-16 10:59:19,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1104 transitions. [2022-11-16 10:59:19,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:59:19,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1104 transitions. [2022-11-16 10:59:19,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:19,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:19,985 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:19,985 INFO L175 Difference]: Start difference. First operand has 197 places, 192 transitions, 532 flow. Second operand 6 states and 1104 transitions. [2022-11-16 10:59:19,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 191 transitions, 564 flow [2022-11-16 10:59:19,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 191 transitions, 557 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 10:59:19,992 INFO L231 Difference]: Finished difference. Result has 194 places, 0 transitions, 0 flow [2022-11-16 10:59:19,992 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=523, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=194, PETRI_TRANSITIONS=0} [2022-11-16 10:59:19,993 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, -8 predicate places. [2022-11-16 10:59:19,993 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 0 transitions, 0 flow [2022-11-16 10:59:19,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 183.83333333333334) internal successors, (1103), 6 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:59:19,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (23 of 24 remaining) [2022-11-16 10:59:19,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2022-11-16 10:59:19,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2022-11-16 10:59:19,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2022-11-16 10:59:20,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2022-11-16 10:59:20,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2022-11-16 10:59:20,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2022-11-16 10:59:20,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2022-11-16 10:59:20,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2022-11-16 10:59:20,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2022-11-16 10:59:20,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 24 remaining) [2022-11-16 10:59:20,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 24 remaining) [2022-11-16 10:59:20,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2022-11-16 10:59:20,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2022-11-16 10:59:20,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2022-11-16 10:59:20,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2022-11-16 10:59:20,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2022-11-16 10:59:20,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2022-11-16 10:59:20,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2022-11-16 10:59:20,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2022-11-16 10:59:20,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2022-11-16 10:59:20,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2022-11-16 10:59:20,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2022-11-16 10:59:20,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2022-11-16 10:59:20,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 10:59:20,007 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:59:20,014 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 10:59:20,014 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 10:59:20,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 10:59:20 BasicIcfg [2022-11-16 10:59:20,021 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 10:59:20,022 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 10:59:20,022 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 10:59:20,023 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 10:59:20,023 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:59:02" (3/4) ... [2022-11-16 10:59:20,027 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 10:59:20,035 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2022-11-16 10:59:20,035 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-16 10:59:20,042 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-16 10:59:20,042 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 10:59:20,043 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 10:59:20,043 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 10:59:20,107 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46817bf-4de8-4b03-a1f6-e09991c83348/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 10:59:20,108 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 10:59:20,108 INFO L158 Benchmark]: Toolchain (without parser) took 18935.73ms. Allocated memory was 107.0MB in the beginning and 2.4GB in the end (delta: 2.3GB). Free memory was 72.5MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 845.5MB. Max. memory is 16.1GB. [2022-11-16 10:59:20,109 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 107.0MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 10:59:20,109 INFO L158 Benchmark]: CACSL2BoogieTranslator took 738.15ms. Allocated memory is still 107.0MB. Free memory was 72.3MB in the beginning and 71.8MB in the end (delta: 480.4kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 10:59:20,110 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.74ms. Allocated memory is still 107.0MB. Free memory was 71.8MB in the beginning and 69.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 10:59:20,110 INFO L158 Benchmark]: Boogie Preprocessor took 55.66ms. Allocated memory is still 107.0MB. Free memory was 69.4MB in the beginning and 67.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 10:59:20,111 INFO L158 Benchmark]: RCFGBuilder took 842.80ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 67.7MB in the beginning and 104.4MB in the end (delta: -36.7MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2022-11-16 10:59:20,111 INFO L158 Benchmark]: TraceAbstraction took 17111.71ms. Allocated memory was 130.0MB in the beginning and 2.4GB in the end (delta: 2.3GB). Free memory was 104.4MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 850.7MB. Max. memory is 16.1GB. [2022-11-16 10:59:20,112 INFO L158 Benchmark]: Witness Printer took 85.61ms. Allocated memory is still 2.4GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 10:59:20,115 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 107.0MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 738.15ms. Allocated memory is still 107.0MB. Free memory was 72.3MB in the beginning and 71.8MB in the end (delta: 480.4kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.74ms. Allocated memory is still 107.0MB. Free memory was 71.8MB in the beginning and 69.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.66ms. Allocated memory is still 107.0MB. Free memory was 69.4MB in the beginning and 67.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 842.80ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 67.7MB in the beginning and 104.4MB in the end (delta: -36.7MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. * TraceAbstraction took 17111.71ms. Allocated memory was 130.0MB in the beginning and 2.4GB in the end (delta: 2.3GB). Free memory was 104.4MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 850.7MB. Max. memory is 16.1GB. * Witness Printer took 85.61ms. Allocated memory is still 2.4GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 718]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 721]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 729]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: 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, 280 locations, 24 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: 16.9s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 12.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 304 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 304 mSDsluCounter, 132 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 104 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 600 IncrementalHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 104 mSolverCounterUnsat, 128 mSDtfsCounter, 600 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=708occurred in iteration=8, InterpolantAutomatonStates: 46, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 848 NumberOfCodeBlocks, 848 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 837 ConstructedInterpolants, 0 QuantifiedInterpolants, 2122 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 10:59:20,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46817bf-4de8-4b03-a1f6-e09991c83348/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE