./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/37_stack_lock_p0_vs_concur.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f60706-41f0-4db5-b3d3-66f95f0c266f/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f60706-41f0-4db5-b3d3-66f95f0c266f/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f60706-41f0-4db5-b3d3-66f95f0c266f/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f60706-41f0-4db5-b3d3-66f95f0c266f/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/37_stack_lock_p0_vs_concur.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f60706-41f0-4db5-b3d3-66f95f0c266f/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f60706-41f0-4db5-b3d3-66f95f0c266f/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a8bcba962b15df67a0e136eef2e702f216cc120b7626a7b8dc8877f6ecaf3765 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:21:08,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:21:08,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:21:08,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:21:08,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:21:08,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:21:08,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:21:08,740 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:21:08,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:21:08,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:21:08,746 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:21:08,747 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:21:08,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:21:08,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:21:08,751 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:21:08,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:21:08,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:21:08,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:21:08,758 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:21:08,760 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:21:08,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:21:08,773 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:21:08,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:21:08,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:21:08,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:21:08,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:21:08,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:21:08,787 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:21:08,788 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:21:08,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:21:08,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:21:08,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:21:08,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:21:08,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:21:08,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:21:08,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:21:08,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:21:08,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:21:08,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:21:08,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:21:08,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:21:08,803 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f60706-41f0-4db5-b3d3-66f95f0c266f/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:21:08,865 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:21:08,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:21:08,869 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:21:08,870 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:21:08,871 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:21:08,871 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:21:08,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:21:08,873 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:21:08,873 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:21:08,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:21:08,875 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:21:08,876 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:21:08,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:21:08,876 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:21:08,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:21:08,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:21:08,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:21:08,877 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:21:08,878 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:21:08,878 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:21:08,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:21:08,879 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:21:08,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:21:08,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:21:08,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:21:08,880 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:21:08,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:21:08,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:21:08,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:21:08,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:21:08,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:21:08,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:21:08,882 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:21:08,883 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:21:08,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:21:08,883 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_b2f60706-41f0-4db5-b3d3-66f95f0c266f/bin/uautomizer-Dbtcem3rbc/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f60706-41f0-4db5-b3d3-66f95f0c266f/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8bcba962b15df67a0e136eef2e702f216cc120b7626a7b8dc8877f6ecaf3765 [2022-11-02 20:21:09,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:21:09,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:21:09,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:21:09,244 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:21:09,245 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:21:09,247 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f60706-41f0-4db5-b3d3-66f95f0c266f/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/pthread-ext/37_stack_lock_p0_vs_concur.i [2022-11-02 20:21:09,325 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f60706-41f0-4db5-b3d3-66f95f0c266f/bin/uautomizer-Dbtcem3rbc/data/82b04d64b/ab187b6ae7374f8e990ae05a5fe8440d/FLAGbafbaf794 [2022-11-02 20:21:10,075 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:21:10,076 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f60706-41f0-4db5-b3d3-66f95f0c266f/sv-benchmarks/c/pthread-ext/37_stack_lock_p0_vs_concur.i [2022-11-02 20:21:10,092 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f60706-41f0-4db5-b3d3-66f95f0c266f/bin/uautomizer-Dbtcem3rbc/data/82b04d64b/ab187b6ae7374f8e990ae05a5fe8440d/FLAGbafbaf794 [2022-11-02 20:21:10,301 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f60706-41f0-4db5-b3d3-66f95f0c266f/bin/uautomizer-Dbtcem3rbc/data/82b04d64b/ab187b6ae7374f8e990ae05a5fe8440d [2022-11-02 20:21:10,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:21:10,310 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:21:10,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:21:10,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:21:10,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:21:10,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:21:10" (1/1) ... [2022-11-02 20:21:10,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f77711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:10, skipping insertion in model container [2022-11-02 20:21:10,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:21:10" (1/1) ... [2022-11-02 20:21:10,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:21:10,411 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:21:10,855 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f60706-41f0-4db5-b3d3-66f95f0c266f/sv-benchmarks/c/pthread-ext/37_stack_lock_p0_vs_concur.i[30726,30739] [2022-11-02 20:21:10,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:21:10,872 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:21:10,949 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f60706-41f0-4db5-b3d3-66f95f0c266f/sv-benchmarks/c/pthread-ext/37_stack_lock_p0_vs_concur.i[30726,30739] [2022-11-02 20:21:10,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:21:11,018 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:21:11,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:11 WrapperNode [2022-11-02 20:21:11,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:21:11,021 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:21:11,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:21:11,021 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:21:11,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:11" (1/1) ... [2022-11-02 20:21:11,050 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:11" (1/1) ... [2022-11-02 20:21:11,108 INFO L138 Inliner]: procedures = 171, calls = 26, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 155 [2022-11-02 20:21:11,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:21:11,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:21:11,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:21:11,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:21:11,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:11" (1/1) ... [2022-11-02 20:21:11,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:11" (1/1) ... [2022-11-02 20:21:11,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:11" (1/1) ... [2022-11-02 20:21:11,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:11" (1/1) ... [2022-11-02 20:21:11,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:11" (1/1) ... [2022-11-02 20:21:11,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:11" (1/1) ... [2022-11-02 20:21:11,149 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:11" (1/1) ... [2022-11-02 20:21:11,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:11" (1/1) ... [2022-11-02 20:21:11,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:21:11,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:21:11,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:21:11,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:21:11,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:11" (1/1) ... [2022-11-02 20:21:11,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:21:11,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f60706-41f0-4db5-b3d3-66f95f0c266f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:21:11,201 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f60706-41f0-4db5-b3d3-66f95f0c266f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:21:11,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f60706-41f0-4db5-b3d3-66f95f0c266f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:21:11,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:21:11,256 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-02 20:21:11,257 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-02 20:21:11,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:21:11,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:21:11,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:21:11,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:21:11,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:21:11,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:21:11,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:21:11,260 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:21:11,490 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:21:11,493 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:21:11,999 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:21:12,181 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:21:12,182 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-02 20:21:12,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:21:12 BoogieIcfgContainer [2022-11-02 20:21:12,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:21:12,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:21:12,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:21:12,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:21:12,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:21:10" (1/3) ... [2022-11-02 20:21:12,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7caeb359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:21:12, skipping insertion in model container [2022-11-02 20:21:12,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:11" (2/3) ... [2022-11-02 20:21:12,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7caeb359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:21:12, skipping insertion in model container [2022-11-02 20:21:12,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:21:12" (3/3) ... [2022-11-02 20:21:12,202 INFO L112 eAbstractionObserver]: Analyzing ICFG 37_stack_lock_p0_vs_concur.i [2022-11-02 20:21:12,224 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:21:12,244 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:21:12,244 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2022-11-02 20:21:12,245 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:21:12,442 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 20:21:12,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 133 transitions, 271 flow [2022-11-02 20:21:12,622 INFO L130 PetriNetUnfolder]: 7/144 cut-off events. [2022-11-02 20:21:12,623 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:21:12,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 144 events. 7/144 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 149 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 114. Up to 4 conditions per place. [2022-11-02 20:21:12,632 INFO L82 GeneralOperation]: Start removeDead. Operand has 130 places, 133 transitions, 271 flow [2022-11-02 20:21:12,644 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 133 transitions, 271 flow [2022-11-02 20:21:12,655 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:21:12,663 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;@41a9b449, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:21:12,663 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2022-11-02 20:21:12,677 INFO L130 PetriNetUnfolder]: 3/52 cut-off events. [2022-11-02 20:21:12,677 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:21:12,677 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:21:12,680 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:21:12,681 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2022-11-02 20:21:12,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:12,689 INFO L85 PathProgramCache]: Analyzing trace with hash 2014358023, now seen corresponding path program 1 times [2022-11-02 20:21:12,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:12,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581225770] [2022-11-02 20:21:12,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:12,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:12,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:21:12,834 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:21:12,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:21:12,924 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:21:12,926 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:21:12,927 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2022-11-02 20:21:12,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2022-11-02 20:21:12,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2022-11-02 20:21:12,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2022-11-02 20:21:12,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2022-11-02 20:21:12,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2022-11-02 20:21:12,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2022-11-02 20:21:12,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2022-11-02 20:21:12,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2022-11-02 20:21:12,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2022-11-02 20:21:12,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2022-11-02 20:21:12,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2022-11-02 20:21:12,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2022-11-02 20:21:12,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2022-11-02 20:21:12,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2022-11-02 20:21:12,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2022-11-02 20:21:12,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2022-11-02 20:21:12,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2022-11-02 20:21:12,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2022-11-02 20:21:12,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2022-11-02 20:21:12,940 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2022-11-02 20:21:12,940 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2022-11-02 20:21:12,941 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2022-11-02 20:21:12,941 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2022-11-02 20:21:12,942 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2022-11-02 20:21:12,942 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2022-11-02 20:21:12,943 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2022-11-02 20:21:12,943 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2022-11-02 20:21:12,943 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2022-11-02 20:21:12,944 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2022-11-02 20:21:12,944 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2022-11-02 20:21:12,944 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2022-11-02 20:21:12,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2022-11-02 20:21:12,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2022-11-02 20:21:12,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2022-11-02 20:21:12,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2022-11-02 20:21:12,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2022-11-02 20:21:12,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2022-11-02 20:21:12,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2022-11-02 20:21:12,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:21:12,956 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-02 20:21:12,965 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-02 20:21:12,966 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-02 20:21:13,078 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 20:21:13,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 229 places, 235 transitions, 482 flow [2022-11-02 20:21:13,229 INFO L130 PetriNetUnfolder]: 13/259 cut-off events. [2022-11-02 20:21:13,229 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 20:21:13,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 259 events. 13/259 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 584 event pairs, 0 based on Foata normal form. 0/205 useless extension candidates. Maximal degree in co-relation 215. Up to 6 conditions per place. [2022-11-02 20:21:13,234 INFO L82 GeneralOperation]: Start removeDead. Operand has 229 places, 235 transitions, 482 flow [2022-11-02 20:21:13,241 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 229 places, 235 transitions, 482 flow [2022-11-02 20:21:13,244 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:21:13,245 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;@41a9b449, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:21:13,245 INFO L358 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2022-11-02 20:21:13,263 INFO L130 PetriNetUnfolder]: 5/67 cut-off events. [2022-11-02 20:21:13,264 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:21:13,264 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:21:13,264 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:21:13,265 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2022-11-02 20:21:13,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:13,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1376798954, now seen corresponding path program 1 times [2022-11-02 20:21:13,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:13,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537252676] [2022-11-02 20:21:13,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:13,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:13,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:21:13,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:13,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537252676] [2022-11-02 20:21:13,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537252676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:13,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:21:13,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 20:21:13,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280905157] [2022-11-02 20:21:13,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:13,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:21:13,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:13,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:21:13,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:21:13,488 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 235 [2022-11-02 20:21:13,492 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 235 transitions, 482 flow. Second operand has 2 states, 2 states have (on average 196.0) internal successors, (392), 2 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:13,492 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:21:13,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 235 [2022-11-02 20:21:13,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:21:13,665 INFO L130 PetriNetUnfolder]: 21/500 cut-off events. [2022-11-02 20:21:13,665 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-02 20:21:13,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 553 conditions, 500 events. 21/500 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1803 event pairs, 8 based on Foata normal form. 44/476 useless extension candidates. Maximal degree in co-relation 241. Up to 33 conditions per place. [2022-11-02 20:21:13,676 INFO L137 encePairwiseOnDemand]: 205/235 looper letters, 8 selfloop transitions, 0 changer transitions 0/194 dead transitions. [2022-11-02 20:21:13,676 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 194 transitions, 416 flow [2022-11-02 20:21:13,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:21:13,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-02 20:21:13,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 428 transitions. [2022-11-02 20:21:13,703 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9106382978723404 [2022-11-02 20:21:13,704 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 428 transitions. [2022-11-02 20:21:13,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 428 transitions. [2022-11-02 20:21:13,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:21:13,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 428 transitions. [2022-11-02 20:21:13,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 214.0) internal successors, (428), 2 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:13,727 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 235.0) internal successors, (705), 3 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:13,728 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 235.0) internal successors, (705), 3 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:13,731 INFO L175 Difference]: Start difference. First operand has 229 places, 235 transitions, 482 flow. Second operand 2 states and 428 transitions. [2022-11-02 20:21:13,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 194 transitions, 416 flow [2022-11-02 20:21:13,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 194 transitions, 414 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-11-02 20:21:13,744 INFO L231 Difference]: Finished difference. Result has 196 places, 194 transitions, 398 flow [2022-11-02 20:21:13,747 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=398, PETRI_PLACES=196, PETRI_TRANSITIONS=194} [2022-11-02 20:21:13,753 INFO L287 CegarLoopForPetriNet]: 229 programPoint places, -33 predicate places. [2022-11-02 20:21:13,754 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 194 transitions, 398 flow [2022-11-02 20:21:13,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 196.0) internal successors, (392), 2 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:13,755 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:21:13,755 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:21:13,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:21:13,755 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2022-11-02 20:21:13,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:13,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1471134846, now seen corresponding path program 1 times [2022-11-02 20:21:13,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:13,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471419056] [2022-11-02 20:21:13,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:13,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:21:13,811 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:21:13,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:21:13,848 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:21:13,848 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:21:13,848 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (57 of 58 remaining) [2022-11-02 20:21:13,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (56 of 58 remaining) [2022-11-02 20:21:13,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (55 of 58 remaining) [2022-11-02 20:21:13,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (54 of 58 remaining) [2022-11-02 20:21:13,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (53 of 58 remaining) [2022-11-02 20:21:13,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (52 of 58 remaining) [2022-11-02 20:21:13,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (51 of 58 remaining) [2022-11-02 20:21:13,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (50 of 58 remaining) [2022-11-02 20:21:13,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (49 of 58 remaining) [2022-11-02 20:21:13,851 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (48 of 58 remaining) [2022-11-02 20:21:13,851 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (47 of 58 remaining) [2022-11-02 20:21:13,851 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (46 of 58 remaining) [2022-11-02 20:21:13,851 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (45 of 58 remaining) [2022-11-02 20:21:13,851 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (44 of 58 remaining) [2022-11-02 20:21:13,852 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (43 of 58 remaining) [2022-11-02 20:21:13,852 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (42 of 58 remaining) [2022-11-02 20:21:13,852 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (41 of 58 remaining) [2022-11-02 20:21:13,852 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (40 of 58 remaining) [2022-11-02 20:21:13,853 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (39 of 58 remaining) [2022-11-02 20:21:13,853 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (38 of 58 remaining) [2022-11-02 20:21:13,853 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 58 remaining) [2022-11-02 20:21:13,853 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (36 of 58 remaining) [2022-11-02 20:21:13,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (35 of 58 remaining) [2022-11-02 20:21:13,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (34 of 58 remaining) [2022-11-02 20:21:13,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (33 of 58 remaining) [2022-11-02 20:21:13,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (32 of 58 remaining) [2022-11-02 20:21:13,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 58 remaining) [2022-11-02 20:21:13,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 58 remaining) [2022-11-02 20:21:13,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (29 of 58 remaining) [2022-11-02 20:21:13,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (28 of 58 remaining) [2022-11-02 20:21:13,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 58 remaining) [2022-11-02 20:21:13,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (26 of 58 remaining) [2022-11-02 20:21:13,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 58 remaining) [2022-11-02 20:21:13,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (24 of 58 remaining) [2022-11-02 20:21:13,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 58 remaining) [2022-11-02 20:21:13,873 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (22 of 58 remaining) [2022-11-02 20:21:13,873 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (21 of 58 remaining) [2022-11-02 20:21:13,873 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (20 of 58 remaining) [2022-11-02 20:21:13,873 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (19 of 58 remaining) [2022-11-02 20:21:13,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 58 remaining) [2022-11-02 20:21:13,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 58 remaining) [2022-11-02 20:21:13,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (16 of 58 remaining) [2022-11-02 20:21:13,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (15 of 58 remaining) [2022-11-02 20:21:13,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (14 of 58 remaining) [2022-11-02 20:21:13,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (13 of 58 remaining) [2022-11-02 20:21:13,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (12 of 58 remaining) [2022-11-02 20:21:13,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 58 remaining) [2022-11-02 20:21:13,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (10 of 58 remaining) [2022-11-02 20:21:13,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (9 of 58 remaining) [2022-11-02 20:21:13,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (8 of 58 remaining) [2022-11-02 20:21:13,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (7 of 58 remaining) [2022-11-02 20:21:13,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 58 remaining) [2022-11-02 20:21:13,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 58 remaining) [2022-11-02 20:21:13,877 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 58 remaining) [2022-11-02 20:21:13,877 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 58 remaining) [2022-11-02 20:21:13,877 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (2 of 58 remaining) [2022-11-02 20:21:13,877 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (1 of 58 remaining) [2022-11-02 20:21:13,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (0 of 58 remaining) [2022-11-02 20:21:13,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:21:13,878 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-02 20:21:13,879 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-02 20:21:13,879 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-02 20:21:13,977 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 20:21:13,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 328 places, 337 transitions, 695 flow [2022-11-02 20:21:14,092 INFO L130 PetriNetUnfolder]: 19/374 cut-off events. [2022-11-02 20:21:14,093 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-02 20:21:14,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 374 events. 19/374 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1212 event pairs, 0 based on Foata normal form. 0/294 useless extension candidates. Maximal degree in co-relation 316. Up to 8 conditions per place. [2022-11-02 20:21:14,104 INFO L82 GeneralOperation]: Start removeDead. Operand has 328 places, 337 transitions, 695 flow [2022-11-02 20:21:14,112 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 328 places, 337 transitions, 695 flow [2022-11-02 20:21:14,113 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:21:14,114 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;@41a9b449, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:21:14,115 INFO L358 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2022-11-02 20:21:14,124 INFO L130 PetriNetUnfolder]: 5/66 cut-off events. [2022-11-02 20:21:14,124 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:21:14,124 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:21:14,124 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:21:14,125 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err4ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2022-11-02 20:21:14,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:14,125 INFO L85 PathProgramCache]: Analyzing trace with hash -491146991, now seen corresponding path program 1 times [2022-11-02 20:21:14,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:14,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558144317] [2022-11-02 20:21:14,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:14,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:14,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:21:14,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:14,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558144317] [2022-11-02 20:21:14,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558144317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:14,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:21:14,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 20:21:14,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092416508] [2022-11-02 20:21:14,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:14,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:21:14,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:14,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:21:14,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:21:14,177 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 337 [2022-11-02 20:21:14,178 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 337 transitions, 695 flow. Second operand has 2 states, 2 states have (on average 279.0) internal successors, (558), 2 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:14,179 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:21:14,179 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 337 [2022-11-02 20:21:14,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:21:15,111 INFO L130 PetriNetUnfolder]: 146/2132 cut-off events. [2022-11-02 20:21:15,112 INFO L131 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2022-11-02 20:21:15,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2421 conditions, 2132 events. 146/2132 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 15018 event pairs, 72 based on Foata normal form. 256/2088 useless extension candidates. Maximal degree in co-relation 572. Up to 196 conditions per place. [2022-11-02 20:21:15,157 INFO L137 encePairwiseOnDemand]: 293/337 looper letters, 12 selfloop transitions, 0 changer transitions 0/279 dead transitions. [2022-11-02 20:21:15,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 279 transitions, 603 flow [2022-11-02 20:21:15,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:21:15,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-02 20:21:15,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 612 transitions. [2022-11-02 20:21:15,160 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9080118694362018 [2022-11-02 20:21:15,160 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 612 transitions. [2022-11-02 20:21:15,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 612 transitions. [2022-11-02 20:21:15,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:21:15,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 612 transitions. [2022-11-02 20:21:15,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 306.0) internal successors, (612), 2 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:15,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 337.0) internal successors, (1011), 3 states have internal predecessors, (1011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:15,167 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 337.0) internal successors, (1011), 3 states have internal predecessors, (1011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:15,167 INFO L175 Difference]: Start difference. First operand has 328 places, 337 transitions, 695 flow. Second operand 2 states and 612 transitions. [2022-11-02 20:21:15,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 279 transitions, 603 flow [2022-11-02 20:21:15,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 279 transitions, 597 flow, removed 3 selfloop flow, removed 0 redundant places. [2022-11-02 20:21:15,177 INFO L231 Difference]: Finished difference. Result has 281 places, 279 transitions, 573 flow [2022-11-02 20:21:15,178 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=573, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=573, PETRI_PLACES=281, PETRI_TRANSITIONS=279} [2022-11-02 20:21:15,179 INFO L287 CegarLoopForPetriNet]: 328 programPoint places, -47 predicate places. [2022-11-02 20:21:15,179 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 279 transitions, 573 flow [2022-11-02 20:21:15,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 279.0) internal successors, (558), 2 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:15,180 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:21:15,180 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:21:15,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:21:15,181 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2022-11-02 20:21:15,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:15,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1152797686, now seen corresponding path program 1 times [2022-11-02 20:21:15,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:15,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425387401] [2022-11-02 20:21:15,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:15,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:15,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:21:15,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:15,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425387401] [2022-11-02 20:21:15,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425387401] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:15,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:21:15,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:21:15,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87296834] [2022-11-02 20:21:15,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:15,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:21:15,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:15,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:21:15,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:21:15,939 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 337 [2022-11-02 20:21:15,942 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 279 transitions, 573 flow. Second operand has 6 states, 6 states have (on average 198.83333333333334) internal successors, (1193), 6 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:15,942 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:21:15,942 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 337 [2022-11-02 20:21:15,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand