./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/lazy01.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b 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_9e7d96d4-fc0a-4e03-b58f-527e54e48454/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7d96d4-fc0a-4e03-b58f-527e54e48454/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7d96d4-fc0a-4e03-b58f-527e54e48454/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7d96d4-fc0a-4e03-b58f-527e54e48454/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/lazy01.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7d96d4-fc0a-4e03-b58f-527e54e48454/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7d96d4-fc0a-4e03-b58f-527e54e48454/bin/uautomizer-TMbwUNV5ro --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 b5d87933b05ad3566f9bc28daac5c0aeceb8a45433a1cac3d51a8d34f7f284f0 --- 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-8393723 [2022-11-18 20:14:52,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:14:52,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:14:52,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:14:52,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:14:52,605 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:14:52,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:14:52,615 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:14:52,620 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:14:52,626 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:14:52,627 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:14:52,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:14:52,628 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:14:52,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:14:52,630 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:14:52,631 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:14:52,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:14:52,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:14:52,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:14:52,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:14:52,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:14:52,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:14:52,656 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:14:52,657 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:14:52,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:14:52,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:14:52,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:14:52,664 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:14:52,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:14:52,666 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:14:52,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:14:52,667 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:14:52,668 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:14:52,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:14:52,669 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:14:52,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:14:52,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:14:52,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:14:52,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:14:52,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:14:52,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:14:52,680 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7d96d4-fc0a-4e03-b58f-527e54e48454/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:14:52,718 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:14:52,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:14:52,718 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:14:52,719 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:14:52,719 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:14:52,720 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:14:52,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:14:52,721 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:14:52,721 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:14:52,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:14:52,722 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:14:52,722 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:14:52,722 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:14:52,722 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:14:52,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:14:52,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:14:52,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:14:52,723 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:14:52,723 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:14:52,724 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:14:52,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:14:52,724 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:14:52,724 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:14:52,724 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:14:52,724 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:14:52,725 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:14:52,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:14:52,725 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:14:52,725 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:14:52,725 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:14:52,726 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:14:52,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:14:52,726 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:14:52,726 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:14:52,726 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:14:52,727 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_9e7d96d4-fc0a-4e03-b58f-527e54e48454/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7d96d4-fc0a-4e03-b58f-527e54e48454/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5d87933b05ad3566f9bc28daac5c0aeceb8a45433a1cac3d51a8d34f7f284f0 [2022-11-18 20:14:53,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:14:53,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:14:53,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:14:53,075 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:14:53,076 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:14:53,077 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7d96d4-fc0a-4e03-b58f-527e54e48454/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread/lazy01.i [2022-11-18 20:14:53,148 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7d96d4-fc0a-4e03-b58f-527e54e48454/bin/uautomizer-TMbwUNV5ro/data/9683b8e16/62855537ef1040beab1debc2f85c1071/FLAGec913730d [2022-11-18 20:14:53,818 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:14:53,819 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7d96d4-fc0a-4e03-b58f-527e54e48454/sv-benchmarks/c/pthread/lazy01.i [2022-11-18 20:14:53,843 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7d96d4-fc0a-4e03-b58f-527e54e48454/bin/uautomizer-TMbwUNV5ro/data/9683b8e16/62855537ef1040beab1debc2f85c1071/FLAGec913730d [2022-11-18 20:14:54,111 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7d96d4-fc0a-4e03-b58f-527e54e48454/bin/uautomizer-TMbwUNV5ro/data/9683b8e16/62855537ef1040beab1debc2f85c1071 [2022-11-18 20:14:54,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:14:54,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:14:54,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:14:54,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:14:54,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:14:54,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:14:54" (1/1) ... [2022-11-18 20:14:54,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48999e6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:54, skipping insertion in model container [2022-11-18 20:14:54,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:14:54" (1/1) ... [2022-11-18 20:14:54,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:14:54,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:14:54,634 WARN L234 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_9e7d96d4-fc0a-4e03-b58f-527e54e48454/sv-benchmarks/c/pthread/lazy01.i[31042,31055] [2022-11-18 20:14:54,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:14:54,655 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:14:54,691 WARN L234 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_9e7d96d4-fc0a-4e03-b58f-527e54e48454/sv-benchmarks/c/pthread/lazy01.i[31042,31055] [2022-11-18 20:14:54,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:14:54,735 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:14:54,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:54 WrapperNode [2022-11-18 20:14:54,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:14:54,737 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:14:54,737 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:14:54,737 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:14:54,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:54" (1/1) ... [2022-11-18 20:14:54,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:54" (1/1) ... [2022-11-18 20:14:54,813 INFO L138 Inliner]: procedures = 169, calls = 33, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 77 [2022-11-18 20:14:54,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:14:54,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:14:54,816 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:14:54,816 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:14:54,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:54" (1/1) ... [2022-11-18 20:14:54,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:54" (1/1) ... [2022-11-18 20:14:54,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:54" (1/1) ... [2022-11-18 20:14:54,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:54" (1/1) ... [2022-11-18 20:14:54,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:54" (1/1) ... [2022-11-18 20:14:54,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:54" (1/1) ... [2022-11-18 20:14:54,869 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:54" (1/1) ... [2022-11-18 20:14:54,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:54" (1/1) ... [2022-11-18 20:14:54,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:14:54,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:14:54,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:14:54,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:14:54,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:54" (1/1) ... [2022-11-18 20:14:54,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:14:54,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7d96d4-fc0a-4e03-b58f-527e54e48454/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:14:54,919 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7d96d4-fc0a-4e03-b58f-527e54e48454/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:14:54,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7d96d4-fc0a-4e03-b58f-527e54e48454/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:14:54,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:14:54,966 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:14:54,966 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:14:54,966 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 20:14:54,966 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 20:14:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 20:14:54,968 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 20:14:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:14:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:14:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:14:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:14:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:14:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:14:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:14:54,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:14:54,971 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:14:55,097 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:14:55,099 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:14:55,424 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:14:55,433 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:14:55,433 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:14:55,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:14:55 BoogieIcfgContainer [2022-11-18 20:14:55,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:14:55,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:14:55,439 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:14:55,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:14:55,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:14:54" (1/3) ... [2022-11-18 20:14:55,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c32762a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:14:55, skipping insertion in model container [2022-11-18 20:14:55,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:54" (2/3) ... [2022-11-18 20:14:55,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c32762a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:14:55, skipping insertion in model container [2022-11-18 20:14:55,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:14:55" (3/3) ... [2022-11-18 20:14:55,457 INFO L112 eAbstractionObserver]: Analyzing ICFG lazy01.i [2022-11-18 20:14:55,469 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:14:55,482 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:14:55,482 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-18 20:14:55,482 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:14:55,609 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 20:14:55,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 127 transitions, 278 flow [2022-11-18 20:14:55,773 INFO L130 PetriNetUnfolder]: 1/124 cut-off events. [2022-11-18 20:14:55,773 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:14:55,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 124 events. 1/124 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 154 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2022-11-18 20:14:55,780 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 127 transitions, 278 flow [2022-11-18 20:14:55,788 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 112 transitions, 239 flow [2022-11-18 20:14:55,811 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:14:55,820 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;@2c1e7e3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:14:55,821 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-18 20:14:55,832 INFO L130 PetriNetUnfolder]: 0/37 cut-off events. [2022-11-18 20:14:55,833 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:14:55,833 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:55,834 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] [2022-11-18 20:14:55,834 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-18 20:14:55,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:55,840 INFO L85 PathProgramCache]: Analyzing trace with hash 581651090, now seen corresponding path program 1 times [2022-11-18 20:14:55,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:55,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292000729] [2022-11-18 20:14:55,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:55,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:56,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:56,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:56,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292000729] [2022-11-18 20:14:56,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292000729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:56,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:56,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:14:56,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906718949] [2022-11-18 20:14:56,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:56,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:14:56,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:56,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:14:56,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:14:56,298 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 127 [2022-11-18 20:14:56,302 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 112 transitions, 239 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2022-11-18 20:14:56,302 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:56,302 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 127 [2022-11-18 20:14:56,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:56,751 INFO L130 PetriNetUnfolder]: 475/1514 cut-off events. [2022-11-18 20:14:56,751 INFO L131 PetriNetUnfolder]: For 217/217 co-relation queries the response was YES. [2022-11-18 20:14:56,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2529 conditions, 1514 events. 475/1514 cut-off events. For 217/217 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 11352 event pairs, 200 based on Foata normal form. 91/1322 useless extension candidates. Maximal degree in co-relation 2391. Up to 447 conditions per place. [2022-11-18 20:14:56,783 INFO L137 encePairwiseOnDemand]: 115/127 looper letters, 28 selfloop transitions, 8 changer transitions 0/126 dead transitions. [2022-11-18 20:14:56,783 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 126 transitions, 351 flow [2022-11-18 20:14:56,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:14:56,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:14:56,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 353 transitions. [2022-11-18 20:14:56,808 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.926509186351706 [2022-11-18 20:14:56,809 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 353 transitions. [2022-11-18 20:14:56,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 353 transitions. [2022-11-18 20:14:56,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:56,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 353 transitions. [2022-11-18 20:14:56,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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) [2022-11-18 20:14:56,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-11-18 20:14:56,829 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-11-18 20:14:56,831 INFO L175 Difference]: Start difference. First operand has 121 places, 112 transitions, 239 flow. Second operand 3 states and 353 transitions. [2022-11-18 20:14:56,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 126 transitions, 351 flow [2022-11-18 20:14:56,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 126 transitions, 335 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:14:56,848 INFO L231 Difference]: Finished difference. Result has 119 places, 118 transitions, 296 flow [2022-11-18 20:14:56,851 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=296, PETRI_PLACES=119, PETRI_TRANSITIONS=118} [2022-11-18 20:14:56,861 INFO L288 CegarLoopForPetriNet]: 121 programPoint places, -2 predicate places. [2022-11-18 20:14:56,862 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 118 transitions, 296 flow [2022-11-18 20:14:56,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2022-11-18 20:14:56,863 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:56,863 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] [2022-11-18 20:14:56,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:14:56,864 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-18 20:14:56,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:56,865 INFO L85 PathProgramCache]: Analyzing trace with hash 545547604, now seen corresponding path program 1 times [2022-11-18 20:14:56,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:56,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197873080] [2022-11-18 20:14:56,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:56,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:56,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:57,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:57,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:57,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197873080] [2022-11-18 20:14:57,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197873080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:57,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:57,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:14:57,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583921933] [2022-11-18 20:14:57,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:57,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:14:57,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:57,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:14:57,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:14:57,040 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 127 [2022-11-18 20:14:57,041 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 118 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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) [2022-11-18 20:14:57,041 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:57,041 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 127 [2022-11-18 20:14:57,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:57,482 INFO L130 PetriNetUnfolder]: 670/2046 cut-off events. [2022-11-18 20:14:57,482 INFO L131 PetriNetUnfolder]: For 736/795 co-relation queries the response was YES. [2022-11-18 20:14:57,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4240 conditions, 2046 events. 670/2046 cut-off events. For 736/795 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 16463 event pairs, 337 based on Foata normal form. 5/1802 useless extension candidates. Maximal degree in co-relation 3404. Up to 939 conditions per place. [2022-11-18 20:14:57,505 INFO L137 encePairwiseOnDemand]: 120/127 looper letters, 38 selfloop transitions, 10 changer transitions 0/136 dead transitions. [2022-11-18 20:14:57,505 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 136 transitions, 465 flow [2022-11-18 20:14:57,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:14:57,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:14:57,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions. [2022-11-18 20:14:57,508 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8976377952755905 [2022-11-18 20:14:57,508 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 342 transitions. [2022-11-18 20:14:57,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 342 transitions. [2022-11-18 20:14:57,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:57,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 342 transitions. [2022-11-18 20:14:57,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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) [2022-11-18 20:14:57,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-11-18 20:14:57,514 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-11-18 20:14:57,514 INFO L175 Difference]: Start difference. First operand has 119 places, 118 transitions, 296 flow. Second operand 3 states and 342 transitions. [2022-11-18 20:14:57,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 136 transitions, 465 flow [2022-11-18 20:14:57,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 136 transitions, 439 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:14:57,526 INFO L231 Difference]: Finished difference. Result has 121 places, 126 transitions, 366 flow [2022-11-18 20:14:57,527 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=366, PETRI_PLACES=121, PETRI_TRANSITIONS=126} [2022-11-18 20:14:57,527 INFO L288 CegarLoopForPetriNet]: 121 programPoint places, 0 predicate places. [2022-11-18 20:14:57,528 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 126 transitions, 366 flow [2022-11-18 20:14:57,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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) [2022-11-18 20:14:57,529 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:57,529 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] [2022-11-18 20:14:57,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:14:57,530 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-18 20:14:57,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:57,530 INFO L85 PathProgramCache]: Analyzing trace with hash 159745156, now seen corresponding path program 1 times [2022-11-18 20:14:57,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:57,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219873299] [2022-11-18 20:14:57,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:57,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:57,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:57,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:57,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:57,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219873299] [2022-11-18 20:14:57,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219873299] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:57,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:57,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:14:57,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368073931] [2022-11-18 20:14:57,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:57,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:14:57,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:57,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:14:57,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:14:57,648 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 127 [2022-11-18 20:14:57,649 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 126 transitions, 366 flow. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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) [2022-11-18 20:14:57,649 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:57,649 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 127 [2022-11-18 20:14:57,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:58,087 INFO L130 PetriNetUnfolder]: 787/2411 cut-off events. [2022-11-18 20:14:58,088 INFO L131 PetriNetUnfolder]: For 1167/1185 co-relation queries the response was YES. [2022-11-18 20:14:58,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5338 conditions, 2411 events. 787/2411 cut-off events. For 1167/1185 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 20086 event pairs, 310 based on Foata normal form. 0/2125 useless extension candidates. Maximal degree in co-relation 4396. Up to 1033 conditions per place. [2022-11-18 20:14:58,111 INFO L137 encePairwiseOnDemand]: 120/127 looper letters, 44 selfloop transitions, 13 changer transitions 0/146 dead transitions. [2022-11-18 20:14:58,112 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 146 transitions, 573 flow [2022-11-18 20:14:58,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:14:58,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:14:58,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions. [2022-11-18 20:14:58,113 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8976377952755905 [2022-11-18 20:14:58,114 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 342 transitions. [2022-11-18 20:14:58,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 342 transitions. [2022-11-18 20:14:58,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:58,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 342 transitions. [2022-11-18 20:14:58,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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) [2022-11-18 20:14:58,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-11-18 20:14:58,117 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-11-18 20:14:58,117 INFO L175 Difference]: Start difference. First operand has 121 places, 126 transitions, 366 flow. Second operand 3 states and 342 transitions. [2022-11-18 20:14:58,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 146 transitions, 573 flow [2022-11-18 20:14:58,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 146 transitions, 545 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:14:58,123 INFO L231 Difference]: Finished difference. Result has 123 places, 135 transitions, 460 flow [2022-11-18 20:14:58,124 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=460, PETRI_PLACES=123, PETRI_TRANSITIONS=135} [2022-11-18 20:14:58,125 INFO L288 CegarLoopForPetriNet]: 121 programPoint places, 2 predicate places. [2022-11-18 20:14:58,125 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 135 transitions, 460 flow [2022-11-18 20:14:58,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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) [2022-11-18 20:14:58,125 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:58,126 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] [2022-11-18 20:14:58,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:14:58,126 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-18 20:14:58,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:58,127 INFO L85 PathProgramCache]: Analyzing trace with hash -428595536, now seen corresponding path program 1 times [2022-11-18 20:14:58,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:58,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38633423] [2022-11-18 20:14:58,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:58,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:58,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:58,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:58,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38633423] [2022-11-18 20:14:58,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38633423] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:58,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:58,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:14:58,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138823865] [2022-11-18 20:14:58,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:58,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:14:58,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:58,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:14:58,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:14:58,308 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 127 [2022-11-18 20:14:58,308 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 135 transitions, 460 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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) [2022-11-18 20:14:58,308 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:58,309 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 127 [2022-11-18 20:14:58,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:58,396 INFO L130 PetriNetUnfolder]: 26/374 cut-off events. [2022-11-18 20:14:58,396 INFO L131 PetriNetUnfolder]: For 123/123 co-relation queries the response was YES. [2022-11-18 20:14:58,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 651 conditions, 374 events. 26/374 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1671 event pairs, 12 based on Foata normal form. 16/375 useless extension candidates. Maximal degree in co-relation 439. Up to 47 conditions per place. [2022-11-18 20:14:58,399 INFO L137 encePairwiseOnDemand]: 121/127 looper letters, 16 selfloop transitions, 6 changer transitions 1/111 dead transitions. [2022-11-18 20:14:58,399 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 111 transitions, 329 flow [2022-11-18 20:14:58,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:14:58,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:14:58,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 343 transitions. [2022-11-18 20:14:58,401 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9002624671916011 [2022-11-18 20:14:58,401 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 343 transitions. [2022-11-18 20:14:58,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 343 transitions. [2022-11-18 20:14:58,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:58,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 343 transitions. [2022-11-18 20:14:58,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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) [2022-11-18 20:14:58,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-11-18 20:14:58,405 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-11-18 20:14:58,405 INFO L175 Difference]: Start difference. First operand has 123 places, 135 transitions, 460 flow. Second operand 3 states and 343 transitions. [2022-11-18 20:14:58,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 111 transitions, 329 flow [2022-11-18 20:14:58,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 111 transitions, 291 flow, removed 13 selfloop flow, removed 6 redundant places. [2022-11-18 20:14:58,409 INFO L231 Difference]: Finished difference. Result has 114 places, 106 transitions, 244 flow [2022-11-18 20:14:58,415 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=114, PETRI_TRANSITIONS=106} [2022-11-18 20:14:58,417 INFO L288 CegarLoopForPetriNet]: 121 programPoint places, -7 predicate places. [2022-11-18 20:14:58,417 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 106 transitions, 244 flow [2022-11-18 20:14:58,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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) [2022-11-18 20:14:58,418 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:58,418 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] [2022-11-18 20:14:58,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:14:58,419 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-18 20:14:58,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:58,420 INFO L85 PathProgramCache]: Analyzing trace with hash 150780515, now seen corresponding path program 1 times [2022-11-18 20:14:58,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:58,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846571482] [2022-11-18 20:14:58,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:58,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:58,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:58,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:58,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846571482] [2022-11-18 20:14:58,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846571482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:58,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:58,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:14:58,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153431202] [2022-11-18 20:14:58,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:58,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:14:58,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:58,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:14:58,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:14:58,947 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 127 [2022-11-18 20:14:58,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 106 transitions, 244 flow. Second operand has 6 states, 6 states have (on average 97.0) internal successors, (582), 6 states have internal predecessors, (582), 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) [2022-11-18 20:14:58,948 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:58,948 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 127 [2022-11-18 20:14:58,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:59,076 INFO L130 PetriNetUnfolder]: 4/245 cut-off events. [2022-11-18 20:14:59,076 INFO L131 PetriNetUnfolder]: For 3/22 co-relation queries the response was YES. [2022-11-18 20:14:59,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 245 events. 4/245 cut-off events. For 3/22 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 764 event pairs, 2 based on Foata normal form. 12/248 useless extension candidates. Maximal degree in co-relation 299. Up to 42 conditions per place. [2022-11-18 20:14:59,078 INFO L137 encePairwiseOnDemand]: 122/127 looper letters, 21 selfloop transitions, 4 changer transitions 0/105 dead transitions. [2022-11-18 20:14:59,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 105 transitions, 292 flow [2022-11-18 20:14:59,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:14:59,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:14:59,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 596 transitions. [2022-11-18 20:14:59,081 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7821522309711286 [2022-11-18 20:14:59,081 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 596 transitions. [2022-11-18 20:14:59,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 596 transitions. [2022-11-18 20:14:59,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:59,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 596 transitions. [2022-11-18 20:14:59,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.33333333333333) internal successors, (596), 6 states have internal predecessors, (596), 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) [2022-11-18 20:14:59,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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) [2022-11-18 20:14:59,087 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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) [2022-11-18 20:14:59,087 INFO L175 Difference]: Start difference. First operand has 114 places, 106 transitions, 244 flow. Second operand 6 states and 596 transitions. [2022-11-18 20:14:59,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 105 transitions, 292 flow [2022-11-18 20:14:59,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 105 transitions, 286 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:14:59,091 INFO L231 Difference]: Finished difference. Result has 116 places, 105 transitions, 244 flow [2022-11-18 20:14:59,091 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=244, PETRI_PLACES=116, PETRI_TRANSITIONS=105} [2022-11-18 20:14:59,092 INFO L288 CegarLoopForPetriNet]: 121 programPoint places, -5 predicate places. [2022-11-18 20:14:59,092 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 105 transitions, 244 flow [2022-11-18 20:14:59,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 97.0) internal successors, (582), 6 states have internal predecessors, (582), 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) [2022-11-18 20:14:59,093 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:59,093 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] [2022-11-18 20:14:59,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:14:59,094 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-18 20:14:59,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:59,095 INFO L85 PathProgramCache]: Analyzing trace with hash -974977477, now seen corresponding path program 1 times [2022-11-18 20:14:59,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:59,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831245969] [2022-11-18 20:14:59,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:59,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:59,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:59,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:59,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:59,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831245969] [2022-11-18 20:14:59,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831245969] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:59,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:59,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:14:59,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111377059] [2022-11-18 20:14:59,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:59,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:14:59,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:59,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:14:59,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:14:59,596 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 127 [2022-11-18 20:14:59,598 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 105 transitions, 244 flow. Second operand has 6 states, 6 states have (on average 98.0) internal successors, (588), 6 states have internal predecessors, (588), 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) [2022-11-18 20:14:59,598 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:59,598 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 127 [2022-11-18 20:14:59,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:59,732 INFO L130 PetriNetUnfolder]: 4/241 cut-off events. [2022-11-18 20:14:59,732 INFO L131 PetriNetUnfolder]: For 4/20 co-relation queries the response was YES. [2022-11-18 20:14:59,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 241 events. 4/241 cut-off events. For 4/20 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 747 event pairs, 2 based on Foata normal form. 0/236 useless extension candidates. Maximal degree in co-relation 284. Up to 20 conditions per place. [2022-11-18 20:14:59,734 INFO L137 encePairwiseOnDemand]: 122/127 looper letters, 20 selfloop transitions, 4 changer transitions 0/104 dead transitions. [2022-11-18 20:14:59,735 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 104 transitions, 290 flow [2022-11-18 20:14:59,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:14:59,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:14:59,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 595 transitions. [2022-11-18 20:14:59,738 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7808398950131233 [2022-11-18 20:14:59,738 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 595 transitions. [2022-11-18 20:14:59,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 595 transitions. [2022-11-18 20:14:59,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:59,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 595 transitions. [2022-11-18 20:14:59,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.16666666666667) internal successors, (595), 6 states have internal predecessors, (595), 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) [2022-11-18 20:14:59,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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) [2022-11-18 20:14:59,744 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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) [2022-11-18 20:14:59,744 INFO L175 Difference]: Start difference. First operand has 116 places, 105 transitions, 244 flow. Second operand 6 states and 595 transitions. [2022-11-18 20:14:59,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 104 transitions, 290 flow [2022-11-18 20:14:59,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 104 transitions, 283 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 20:14:59,747 INFO L231 Difference]: Finished difference. Result has 116 places, 104 transitions, 243 flow [2022-11-18 20:14:59,748 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=243, PETRI_PLACES=116, PETRI_TRANSITIONS=104} [2022-11-18 20:14:59,749 INFO L288 CegarLoopForPetriNet]: 121 programPoint places, -5 predicate places. [2022-11-18 20:14:59,749 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 104 transitions, 243 flow [2022-11-18 20:14:59,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.0) internal successors, (588), 6 states have internal predecessors, (588), 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) [2022-11-18 20:14:59,750 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:59,750 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] [2022-11-18 20:14:59,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:14:59,751 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-18 20:14:59,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:59,751 INFO L85 PathProgramCache]: Analyzing trace with hash 590146298, now seen corresponding path program 1 times [2022-11-18 20:14:59,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:59,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135093304] [2022-11-18 20:14:59,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:59,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:59,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:00,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:15:00,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:15:00,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135093304] [2022-11-18 20:15:00,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135093304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:15:00,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:15:00,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:15:00,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104847440] [2022-11-18 20:15:00,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:15:00,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:15:00,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:15:00,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:15:00,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:15:00,355 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 127 [2022-11-18 20:15:00,355 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 104 transitions, 243 flow. Second operand has 6 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 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) [2022-11-18 20:15:00,356 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:15:00,356 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 127 [2022-11-18 20:15:00,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:15:00,426 INFO L130 PetriNetUnfolder]: 4/239 cut-off events. [2022-11-18 20:15:00,427 INFO L131 PetriNetUnfolder]: For 7/24 co-relation queries the response was YES. [2022-11-18 20:15:00,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 239 events. 4/239 cut-off events. For 7/24 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 746 event pairs, 2 based on Foata normal form. 2/236 useless extension candidates. Maximal degree in co-relation 291. Up to 40 conditions per place. [2022-11-18 20:15:00,428 INFO L137 encePairwiseOnDemand]: 122/127 looper letters, 0 selfloop transitions, 0 changer transitions 103/103 dead transitions. [2022-11-18 20:15:00,428 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 103 transitions, 287 flow [2022-11-18 20:15:00,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:15:00,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:15:00,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 594 transitions. [2022-11-18 20:15:00,430 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7795275590551181 [2022-11-18 20:15:00,431 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 594 transitions. [2022-11-18 20:15:00,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 594 transitions. [2022-11-18 20:15:00,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:15:00,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 594 transitions. [2022-11-18 20:15:00,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 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) [2022-11-18 20:15:00,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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) [2022-11-18 20:15:00,435 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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) [2022-11-18 20:15:00,435 INFO L175 Difference]: Start difference. First operand has 116 places, 104 transitions, 243 flow. Second operand 6 states and 594 transitions. [2022-11-18 20:15:00,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 103 transitions, 287 flow [2022-11-18 20:15:00,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 103 transitions, 280 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 20:15:00,437 INFO L231 Difference]: Finished difference. Result has 116 places, 0 transitions, 0 flow [2022-11-18 20:15:00,438 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=116, PETRI_TRANSITIONS=0} [2022-11-18 20:15:00,438 INFO L288 CegarLoopForPetriNet]: 121 programPoint places, -5 predicate places. [2022-11-18 20:15:00,438 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 0 transitions, 0 flow [2022-11-18 20:15:00,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 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) [2022-11-18 20:15:00,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (15 of 16 remaining) [2022-11-18 20:15:00,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2022-11-18 20:15:00,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2022-11-18 20:15:00,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2022-11-18 20:15:00,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2022-11-18 20:15:00,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2022-11-18 20:15:00,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2022-11-18 20:15:00,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2022-11-18 20:15:00,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 16 remaining) [2022-11-18 20:15:00,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 16 remaining) [2022-11-18 20:15:00,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 16 remaining) [2022-11-18 20:15:00,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2022-11-18 20:15:00,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2022-11-18 20:15:00,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2022-11-18 20:15:00,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2022-11-18 20:15:00,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2022-11-18 20:15:00,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:15:00,446 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:15:00,451 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:15:00,451 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:15:00,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:15:00 BasicIcfg [2022-11-18 20:15:00,457 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:15:00,458 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:15:00,458 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:15:00,458 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:15:00,459 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:14:55" (3/4) ... [2022-11-18 20:15:00,461 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:15:00,468 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-18 20:15:00,468 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-18 20:15:00,468 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-18 20:15:00,473 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-18 20:15:00,473 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 20:15:00,473 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 20:15:00,473 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:15:00,506 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7d96d4-fc0a-4e03-b58f-527e54e48454/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:15:00,506 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:15:00,507 INFO L158 Benchmark]: Toolchain (without parser) took 6392.05ms. Allocated memory was 123.7MB in the beginning and 201.3MB in the end (delta: 77.6MB). Free memory was 86.2MB in the beginning and 103.4MB in the end (delta: -17.2MB). Peak memory consumption was 60.4MB. Max. memory is 16.1GB. [2022-11-18 20:15:00,507 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 123.7MB. Free memory was 96.6MB in the beginning and 96.6MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:15:00,507 INFO L158 Benchmark]: CACSL2BoogieTranslator took 619.94ms. Allocated memory is still 123.7MB. Free memory was 86.0MB in the beginning and 88.8MB in the end (delta: -2.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:15:00,508 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.31ms. Allocated memory is still 123.7MB. Free memory was 88.8MB in the beginning and 86.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:15:00,508 INFO L158 Benchmark]: Boogie Preprocessor took 57.68ms. Allocated memory is still 123.7MB. Free memory was 86.7MB in the beginning and 85.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:15:00,508 INFO L158 Benchmark]: RCFGBuilder took 562.92ms. Allocated memory is still 123.7MB. Free memory was 85.2MB in the beginning and 68.7MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-18 20:15:00,509 INFO L158 Benchmark]: TraceAbstraction took 5018.01ms. Allocated memory was 123.7MB in the beginning and 201.3MB in the end (delta: 77.6MB). Free memory was 67.8MB in the beginning and 106.5MB in the end (delta: -38.7MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2022-11-18 20:15:00,509 INFO L158 Benchmark]: Witness Printer took 48.41ms. Allocated memory is still 201.3MB. Free memory was 106.5MB in the beginning and 103.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:15:00,511 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 123.7MB. Free memory was 96.6MB in the beginning and 96.6MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 619.94ms. Allocated memory is still 123.7MB. Free memory was 86.0MB in the beginning and 88.8MB in the end (delta: -2.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.31ms. Allocated memory is still 123.7MB. Free memory was 88.8MB in the beginning and 86.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.68ms. Allocated memory is still 123.7MB. Free memory was 86.7MB in the beginning and 85.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 562.92ms. Allocated memory is still 123.7MB. Free memory was 85.2MB in the beginning and 68.7MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5018.01ms. Allocated memory was 123.7MB in the beginning and 201.3MB in the end (delta: 77.6MB). Free memory was 67.8MB in the beginning and 106.5MB in the end (delta: -38.7MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. * Witness Printer took 48.41ms. Allocated memory is still 201.3MB. Free memory was 106.5MB in the beginning and 103.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: 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: 714]: 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: 735]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 736]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 737]: 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 7 procedures, 177 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 60 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 60 mSDsluCounter, 90 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 242 IncrementalHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 90 mSDtfsCounter, 242 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=460occurred in iteration=3, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 372 NumberOfCodeBlocks, 372 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 365 ConstructedInterpolants, 0 QuantifiedInterpolants, 632 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 20:15:00,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7d96d4-fc0a-4e03-b58f-527e54e48454/bin/uautomizer-TMbwUNV5ro/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