./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f2d601-8956-458d-a818-b75658f10bb4/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f2d601-8956-458d-a818-b75658f10bb4/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_80f2d601-8956-458d-a818-b75658f10bb4/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f2d601-8956-458d-a818-b75658f10bb4/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f2d601-8956-458d-a818-b75658f10bb4/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_80f2d601-8956-458d-a818-b75658f10bb4/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 3de6ec2acea23c0ab47fbc2e02ad0931145060ca78b80531ef692b3505f9553b --- 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 20:54:33,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:54:33,728 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:54:33,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:54:33,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:54:33,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:54:33,771 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:54:33,777 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:54:33,779 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:54:33,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:54:33,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:54:33,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:54:33,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:54:33,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:54:33,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:54:33,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:54:33,797 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:54:33,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:54:33,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:54:33,804 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:54:33,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:54:33,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:54:33,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:54:33,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:54:33,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:54:33,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:54:33,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:54:33,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:54:33,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:54:33,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:54:33,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:54:33,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:54:33,820 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:54:33,821 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:54:33,822 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:54:33,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:54:33,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:54:33,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:54:33,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:54:33,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:54:33,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:54:33,829 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f2d601-8956-458d-a818-b75658f10bb4/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:54:33,868 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:54:33,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:54:33,869 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:54:33,869 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:54:33,870 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:54:33,870 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:54:33,870 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:54:33,871 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:54:33,871 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:54:33,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:54:33,871 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:54:33,871 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:54:33,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:54:33,872 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:54:33,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:54:33,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:54:33,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:54:33,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:54:33,873 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:54:33,873 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:54:33,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:54:33,873 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:54:33,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:54:33,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:54:33,874 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:54:33,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:54:33,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:54:33,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:54:33,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:54:33,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:54:33,875 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:54:33,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:54:33,875 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:54:33,875 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:54:33,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:54:33,876 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_80f2d601-8956-458d-a818-b75658f10bb4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f2d601-8956-458d-a818-b75658f10bb4/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3de6ec2acea23c0ab47fbc2e02ad0931145060ca78b80531ef692b3505f9553b [2022-11-02 20:54:34,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:54:34,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:54:34,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:54:34,221 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:54:34,222 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:54:34,223 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f2d601-8956-458d-a818-b75658f10bb4/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i [2022-11-02 20:54:34,294 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f2d601-8956-458d-a818-b75658f10bb4/bin/uautomizer-Dbtcem3rbc/data/e828bf65e/eca00a27b810469b887f69040a0aaae2/FLAGf65d05c58 [2022-11-02 20:54:34,887 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:54:34,888 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f2d601-8956-458d-a818-b75658f10bb4/sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i [2022-11-02 20:54:34,906 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f2d601-8956-458d-a818-b75658f10bb4/bin/uautomizer-Dbtcem3rbc/data/e828bf65e/eca00a27b810469b887f69040a0aaae2/FLAGf65d05c58 [2022-11-02 20:54:35,138 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f2d601-8956-458d-a818-b75658f10bb4/bin/uautomizer-Dbtcem3rbc/data/e828bf65e/eca00a27b810469b887f69040a0aaae2 [2022-11-02 20:54:35,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:54:35,144 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:54:35,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:54:35,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:54:35,151 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:54:35,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:54:35" (1/1) ... [2022-11-02 20:54:35,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77efb0b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:35, skipping insertion in model container [2022-11-02 20:54:35,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:54:35" (1/1) ... [2022-11-02 20:54:35,163 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:54:35,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:54:35,778 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_80f2d601-8956-458d-a818-b75658f10bb4/sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i[47038,47051] [2022-11-02 20:54:35,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:54:35,859 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:54:35,889 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_80f2d601-8956-458d-a818-b75658f10bb4/sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i[47038,47051] [2022-11-02 20:54:35,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:54:35,962 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:54:35,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:35 WrapperNode [2022-11-02 20:54:35,963 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:54:35,964 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:54:35,964 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:54:35,964 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:54:35,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:35" (1/1) ... [2022-11-02 20:54:36,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:35" (1/1) ... [2022-11-02 20:54:36,077 INFO L138 Inliner]: procedures = 278, calls = 54, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 310 [2022-11-02 20:54:36,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:54:36,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:54:36,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:54:36,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:54:36,089 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:35" (1/1) ... [2022-11-02 20:54:36,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:35" (1/1) ... [2022-11-02 20:54:36,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:35" (1/1) ... [2022-11-02 20:54:36,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:35" (1/1) ... [2022-11-02 20:54:36,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:35" (1/1) ... [2022-11-02 20:54:36,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:35" (1/1) ... [2022-11-02 20:54:36,157 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:35" (1/1) ... [2022-11-02 20:54:36,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:35" (1/1) ... [2022-11-02 20:54:36,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:54:36,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:54:36,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:54:36,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:54:36,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:35" (1/1) ... [2022-11-02 20:54:36,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:54:36,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f2d601-8956-458d-a818-b75658f10bb4/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:54:36,206 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f2d601-8956-458d-a818-b75658f10bb4/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:54:36,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f2d601-8956-458d-a818-b75658f10bb4/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:54:36,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:54:36,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:54:36,247 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-11-02 20:54:36,247 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-11-02 20:54:36,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:54:36,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:54:36,249 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-02 20:54:36,249 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-02 20:54:36,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:54:36,250 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:54:36,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:54:36,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:54:36,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:54:36,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:54:36,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:54:36,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:54:36,252 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 20:54:36,444 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:54:36,447 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:54:37,198 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:54:37,208 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:54:37,209 INFO L300 CfgBuilder]: Removed 15 assume(true) statements. [2022-11-02 20:54:37,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:54:37 BoogieIcfgContainer [2022-11-02 20:54:37,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:54:37,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:54:37,213 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:54:37,217 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:54:37,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:54:35" (1/3) ... [2022-11-02 20:54:37,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ef50d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:54:37, skipping insertion in model container [2022-11-02 20:54:37,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:35" (2/3) ... [2022-11-02 20:54:37,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ef50d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:54:37, skipping insertion in model container [2022-11-02 20:54:37,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:54:37" (3/3) ... [2022-11-02 20:54:37,220 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_81-list_racing.i [2022-11-02 20:54:37,229 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:54:37,239 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:54:37,240 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-11-02 20:54:37,240 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:54:37,354 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-02 20:54:37,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 327 places, 345 transitions, 712 flow [2022-11-02 20:54:37,672 INFO L130 PetriNetUnfolder]: 52/623 cut-off events. [2022-11-02 20:54:37,672 INFO L131 PetriNetUnfolder]: For 8/16 co-relation queries the response was YES. [2022-11-02 20:54:37,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 643 conditions, 623 events. 52/623 cut-off events. For 8/16 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2796 event pairs, 0 based on Foata normal form. 0/529 useless extension candidates. Maximal degree in co-relation 310. Up to 8 conditions per place. [2022-11-02 20:54:37,691 INFO L82 GeneralOperation]: Start removeDead. Operand has 327 places, 345 transitions, 712 flow [2022-11-02 20:54:37,706 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 327 places, 345 transitions, 712 flow [2022-11-02 20:54:37,723 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:54:37,729 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;@345ad181, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:54:37,730 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2022-11-02 20:54:37,735 INFO L130 PetriNetUnfolder]: 0/40 cut-off events. [2022-11-02 20:54:37,735 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:54:37,736 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:37,737 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:37,737 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-02 20:54:37,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:37,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1487042024, now seen corresponding path program 1 times [2022-11-02 20:54:37,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:37,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577585941] [2022-11-02 20:54:37,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:37,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:37,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:38,032 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 20:54:38,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:38,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577585941] [2022-11-02 20:54:38,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577585941] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:38,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:38,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:54:38,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568854394] [2022-11-02 20:54:38,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:38,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:54:38,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:38,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:54:38,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:54:38,082 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 345 [2022-11-02 20:54:38,088 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 345 transitions, 712 flow. Second operand has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 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 20:54:38,088 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:38,088 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 345 [2022-11-02 20:54:38,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:54:38,569 INFO L130 PetriNetUnfolder]: 49/1160 cut-off events. [2022-11-02 20:54:38,569 INFO L131 PetriNetUnfolder]: For 102/114 co-relation queries the response was YES. [2022-11-02 20:54:38,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1284 conditions, 1160 events. 49/1160 cut-off events. For 102/114 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 6119 event pairs, 24 based on Foata normal form. 92/1128 useless extension candidates. Maximal degree in co-relation 805. Up to 79 conditions per place. [2022-11-02 20:54:38,584 INFO L137 encePairwiseOnDemand]: 326/345 looper letters, 18 selfloop transitions, 2 changer transitions 0/327 dead transitions. [2022-11-02 20:54:38,584 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 327 transitions, 716 flow [2022-11-02 20:54:38,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:54:38,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:54:38,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 958 transitions. [2022-11-02 20:54:38,610 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9256038647342996 [2022-11-02 20:54:38,610 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 958 transitions. [2022-11-02 20:54:38,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 958 transitions. [2022-11-02 20:54:38,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:54:38,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 958 transitions. [2022-11-02 20:54:38,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 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 20:54:38,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 345.0) internal successors, (1380), 4 states have internal predecessors, (1380), 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 20:54:38,636 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 345.0) internal successors, (1380), 4 states have internal predecessors, (1380), 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 20:54:38,638 INFO L175 Difference]: Start difference. First operand has 327 places, 345 transitions, 712 flow. Second operand 3 states and 958 transitions. [2022-11-02 20:54:38,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 327 transitions, 716 flow [2022-11-02 20:54:38,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 327 transitions, 716 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:54:38,656 INFO L231 Difference]: Finished difference. Result has 327 places, 327 transitions, 680 flow [2022-11-02 20:54:38,658 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=345, PETRI_DIFFERENCE_MINUEND_FLOW=676, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=325, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=680, PETRI_PLACES=327, PETRI_TRANSITIONS=327} [2022-11-02 20:54:38,664 INFO L287 CegarLoopForPetriNet]: 327 programPoint places, 0 predicate places. [2022-11-02 20:54:38,665 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 327 transitions, 680 flow [2022-11-02 20:54:38,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 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 20:54:38,666 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:38,667 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:38,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:54:38,668 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-02 20:54:38,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:38,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1272635081, now seen corresponding path program 1 times [2022-11-02 20:54:38,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:38,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132729706] [2022-11-02 20:54:38,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:38,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:38,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:38,783 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 20:54:38,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:38,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132729706] [2022-11-02 20:54:38,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132729706] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:38,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:38,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:54:38,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296013406] [2022-11-02 20:54:38,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:38,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:54:38,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:38,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:54:38,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:54:38,789 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 345 [2022-11-02 20:54:38,791 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 327 transitions, 680 flow. Second operand has 3 states, 3 states have (on average 311.3333333333333) internal successors, (934), 3 states have internal predecessors, (934), 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 20:54:38,791 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:38,791 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 345 [2022-11-02 20:54:38,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:54:39,059 INFO L130 PetriNetUnfolder]: 38/1063 cut-off events. [2022-11-02 20:54:39,060 INFO L131 PetriNetUnfolder]: For 86/96 co-relation queries the response was YES. [2022-11-02 20:54:39,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1157 conditions, 1063 events. 38/1063 cut-off events. For 86/96 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 5282 event pairs, 14 based on Foata normal form. 0/964 useless extension candidates. Maximal degree in co-relation 1105. Up to 51 conditions per place. [2022-11-02 20:54:39,070 INFO L137 encePairwiseOnDemand]: 341/345 looper letters, 13 selfloop transitions, 1 changer transitions 0/324 dead transitions. [2022-11-02 20:54:39,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 324 transitions, 702 flow [2022-11-02 20:54:39,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:54:39,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:54:39,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 947 transitions. [2022-11-02 20:54:39,073 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.914975845410628 [2022-11-02 20:54:39,074 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 947 transitions. [2022-11-02 20:54:39,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 947 transitions. [2022-11-02 20:54:39,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:54:39,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 947 transitions. [2022-11-02 20:54:39,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 315.6666666666667) internal successors, (947), 3 states have internal predecessors, (947), 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 20:54:39,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 345.0) internal successors, (1380), 4 states have internal predecessors, (1380), 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 20:54:39,080 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 345.0) internal successors, (1380), 4 states have internal predecessors, (1380), 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 20:54:39,080 INFO L175 Difference]: Start difference. First operand has 327 places, 327 transitions, 680 flow. Second operand 3 states and 947 transitions. [2022-11-02 20:54:39,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 324 transitions, 702 flow [2022-11-02 20:54:39,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 324 transitions, 698 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:54:39,089 INFO L231 Difference]: Finished difference. Result has 324 places, 324 transitions, 672 flow [2022-11-02 20:54:39,089 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=345, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=672, PETRI_PLACES=324, PETRI_TRANSITIONS=324} [2022-11-02 20:54:39,090 INFO L287 CegarLoopForPetriNet]: 327 programPoint places, -3 predicate places. [2022-11-02 20:54:39,091 INFO L495 AbstractCegarLoop]: Abstraction has has 324 places, 324 transitions, 672 flow [2022-11-02 20:54:39,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 311.3333333333333) internal successors, (934), 3 states have internal predecessors, (934), 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 20:54:39,092 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:39,092 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:39,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:54:39,092 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-02 20:54:39,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:39,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1382513203, now seen corresponding path program 1 times [2022-11-02 20:54:39,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:39,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416608564] [2022-11-02 20:54:39,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:39,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:39,694 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 20:54:39,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:39,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416608564] [2022-11-02 20:54:39,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416608564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:39,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:39,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:54:39,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829110690] [2022-11-02 20:54:39,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:39,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:54:39,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:39,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:54:39,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:54:39,704 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 345 [2022-11-02 20:54:39,706 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 324 transitions, 672 flow. Second operand has 6 states, 6 states have (on average 221.5) internal successors, (1329), 6 states have internal predecessors, (1329), 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 20:54:39,707 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:39,707 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 345 [2022-11-02 20:54:39,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:54:56,197 INFO L130 PetriNetUnfolder]: 34447/75827 cut-off events. [2022-11-02 20:54:56,197 INFO L131 PetriNetUnfolder]: For 555/555 co-relation queries the response was YES. [2022-11-02 20:54:56,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128532 conditions, 75827 events. 34447/75827 cut-off events. For 555/555 co-relation queries the response was YES. Maximal size of possible extension queue 1504. Compared 805232 event pairs, 33402 based on Foata normal form. 0/65594 useless extension candidates. Maximal degree in co-relation 128482. Up to 52452 conditions per place. [2022-11-02 20:54:56,838 INFO L137 encePairwiseOnDemand]: 339/345 looper letters, 102 selfloop transitions, 5 changer transitions 0/323 dead transitions. [2022-11-02 20:54:56,838 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 323 transitions, 884 flow [2022-11-02 20:54:56,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:54:56,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:54:56,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1428 transitions. [2022-11-02 20:54:56,842 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6898550724637681 [2022-11-02 20:54:56,843 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1428 transitions. [2022-11-02 20:54:56,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1428 transitions. [2022-11-02 20:54:56,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:54:56,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1428 transitions. [2022-11-02 20:54:56,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 238.0) internal successors, (1428), 6 states have internal predecessors, (1428), 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 20:54:56,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 345.0) internal successors, (2415), 7 states have internal predecessors, (2415), 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 20:54:56,853 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 345.0) internal successors, (2415), 7 states have internal predecessors, (2415), 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 20:54:56,854 INFO L175 Difference]: Start difference. First operand has 324 places, 324 transitions, 672 flow. Second operand 6 states and 1428 transitions. [2022-11-02 20:54:56,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 323 transitions, 884 flow [2022-11-02 20:54:56,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 323 transitions, 883 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:54:56,873 INFO L231 Difference]: Finished difference. Result has 327 places, 323 transitions, 679 flow [2022-11-02 20:54:56,874 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=345, PETRI_DIFFERENCE_MINUEND_FLOW=669, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=679, PETRI_PLACES=327, PETRI_TRANSITIONS=323} [2022-11-02 20:54:56,876 INFO L287 CegarLoopForPetriNet]: 327 programPoint places, 0 predicate places. [2022-11-02 20:54:56,876 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 323 transitions, 679 flow [2022-11-02 20:54:56,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 221.5) internal successors, (1329), 6 states have internal predecessors, (1329), 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 20:54:56,878 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:56,878 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:56,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:54:56,879 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-02 20:54:56,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:56,880 INFO L85 PathProgramCache]: Analyzing trace with hash -952656655, now seen corresponding path program 1 times [2022-11-02 20:54:56,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:56,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106145961] [2022-11-02 20:54:56,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:56,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:56,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:57,336 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 20:54:57,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:57,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106145961] [2022-11-02 20:54:57,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106145961] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:57,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:57,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:54:57,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608469460] [2022-11-02 20:54:57,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:57,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:54:57,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:57,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:54:57,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:54:57,341 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 345 [2022-11-02 20:54:57,343 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 323 transitions, 679 flow. Second operand has 6 states, 6 states have (on average 222.5) internal successors, (1335), 6 states have internal predecessors, (1335), 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 20:54:57,343 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:57,343 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 345 [2022-11-02 20:54:57,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:55:11,308 INFO L130 PetriNetUnfolder]: 34434/75501 cut-off events. [2022-11-02 20:55:11,308 INFO L131 PetriNetUnfolder]: For 556/556 co-relation queries the response was YES. [2022-11-02 20:55:11,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128210 conditions, 75501 events. 34434/75501 cut-off events. For 556/556 co-relation queries the response was YES. Maximal size of possible extension queue 1520. Compared 799882 event pairs, 33402 based on Foata normal form. 0/65269 useless extension candidates. Maximal degree in co-relation 128160. Up to 52451 conditions per place. [2022-11-02 20:55:11,762 INFO L137 encePairwiseOnDemand]: 339/345 looper letters, 101 selfloop transitions, 5 changer transitions 0/322 dead transitions. [2022-11-02 20:55:11,762 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 322 transitions, 889 flow [2022-11-02 20:55:11,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:55:11,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:55:11,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1427 transitions. [2022-11-02 20:55:11,767 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6893719806763285 [2022-11-02 20:55:11,768 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1427 transitions. [2022-11-02 20:55:11,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1427 transitions. [2022-11-02 20:55:11,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:55:11,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1427 transitions. [2022-11-02 20:55:11,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 237.83333333333334) internal successors, (1427), 6 states have internal predecessors, (1427), 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 20:55:11,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 345.0) internal successors, (2415), 7 states have internal predecessors, (2415), 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 20:55:11,783 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 345.0) internal successors, (2415), 7 states have internal predecessors, (2415), 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 20:55:11,784 INFO L175 Difference]: Start difference. First operand has 327 places, 323 transitions, 679 flow. Second operand 6 states and 1427 transitions. [2022-11-02 20:55:11,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 322 transitions, 889 flow [2022-11-02 20:55:11,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 322 transitions, 879 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:55:11,806 INFO L231 Difference]: Finished difference. Result has 326 places, 322 transitions, 677 flow [2022-11-02 20:55:11,807 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=345, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=677, PETRI_PLACES=326, PETRI_TRANSITIONS=322} [2022-11-02 20:55:11,808 INFO L287 CegarLoopForPetriNet]: 327 programPoint places, -1 predicate places. [2022-11-02 20:55:11,809 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 322 transitions, 677 flow [2022-11-02 20:55:11,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 222.5) internal successors, (1335), 6 states have internal predecessors, (1335), 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 20:55:11,810 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:55:11,810 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:55:11,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:55:11,811 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-02 20:55:11,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:11,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1870969522, now seen corresponding path program 1 times [2022-11-02 20:55:11,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:11,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26292637] [2022-11-02 20:55:11,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:11,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:11,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:11,926 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 20:55:11,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:11,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26292637] [2022-11-02 20:55:11,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26292637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:11,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:11,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:55:11,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465685591] [2022-11-02 20:55:11,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:11,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:55:11,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:11,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:55:11,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:55:11,935 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 345 [2022-11-02 20:55:11,936 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 322 transitions, 677 flow. Second operand has 3 states, 3 states have (on average 316.0) internal successors, (948), 3 states have internal predecessors, (948), 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 20:55:11,937 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:55:11,937 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 345 [2022-11-02 20:55:11,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:55:12,045 INFO L130 PetriNetUnfolder]: 9/433 cut-off events. [2022-11-02 20:55:12,045 INFO L131 PetriNetUnfolder]: For 41/83 co-relation queries the response was YES. [2022-11-02 20:55:12,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 477 conditions, 433 events. 9/433 cut-off events. For 41/83 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1138 event pairs, 0 based on Foata normal form. 2/398 useless extension candidates. Maximal degree in co-relation 426. Up to 15 conditions per place. [2022-11-02 20:55:12,052 INFO L137 encePairwiseOnDemand]: 342/345 looper letters, 13 selfloop transitions, 2 changer transitions 0/324 dead transitions. [2022-11-02 20:55:12,052 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 324 transitions, 711 flow [2022-11-02 20:55:12,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:55:12,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:55:12,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 961 transitions. [2022-11-02 20:55:12,055 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9285024154589372 [2022-11-02 20:55:12,055 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 961 transitions. [2022-11-02 20:55:12,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 961 transitions. [2022-11-02 20:55:12,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:55:12,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 961 transitions. [2022-11-02 20:55:12,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 320.3333333333333) internal successors, (961), 3 states have internal predecessors, (961), 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 20:55:12,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 345.0) internal successors, (1380), 4 states have internal predecessors, (1380), 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 20:55:12,061 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 345.0) internal successors, (1380), 4 states have internal predecessors, (1380), 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 20:55:12,061 INFO L175 Difference]: Start difference. First operand has 326 places, 322 transitions, 677 flow. Second operand 3 states and 961 transitions. [2022-11-02 20:55:12,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 324 transitions, 711 flow [2022-11-02 20:55:12,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 324 transitions, 701 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:55:12,068 INFO L231 Difference]: Finished difference. Result has 324 places, 322 transitions, 675 flow [2022-11-02 20:55:12,069 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=345, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=675, PETRI_PLACES=324, PETRI_TRANSITIONS=322} [2022-11-02 20:55:12,069 INFO L287 CegarLoopForPetriNet]: 327 programPoint places, -3 predicate places. [2022-11-02 20:55:12,070 INFO L495 AbstractCegarLoop]: Abstraction has has 324 places, 322 transitions, 675 flow [2022-11-02 20:55:12,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 316.0) internal successors, (948), 3 states have internal predecessors, (948), 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 20:55:12,071 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:55:12,071 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:55:12,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:55:12,071 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-02 20:55:12,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:12,072 INFO L85 PathProgramCache]: Analyzing trace with hash 982598802, now seen corresponding path program 1 times [2022-11-02 20:55:12,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:12,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532680885] [2022-11-02 20:55:12,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:12,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:12,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:12,110 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:55:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:12,163 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:55:12,163 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:55:12,164 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 36 remaining) [2022-11-02 20:55:12,167 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2022-11-02 20:55:12,167 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2022-11-02 20:55:12,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr7ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2022-11-02 20:55:12,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2022-11-02 20:55:12,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2022-11-02 20:55:12,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr5ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2022-11-02 20:55:12,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2022-11-02 20:55:12,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr6ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2022-11-02 20:55:12,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2022-11-02 20:55:12,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2022-11-02 20:55:12,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2022-11-02 20:55:12,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2022-11-02 20:55:12,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2022-11-02 20:55:12,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2022-11-02 20:55:12,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 36 remaining) [2022-11-02 20:55:12,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2022-11-02 20:55:12,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2022-11-02 20:55:12,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2022-11-02 20:55:12,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2022-11-02 20:55:12,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2022-11-02 20:55:12,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr5ASSERT_VIOLATIONDATA_RACE (14 of 36 remaining) [2022-11-02 20:55:12,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2022-11-02 20:55:12,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2022-11-02 20:55:12,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr7ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2022-11-02 20:55:12,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2022-11-02 20:55:12,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2022-11-02 20:55:12,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr5ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2022-11-02 20:55:12,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2022-11-02 20:55:12,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr6ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2022-11-02 20:55:12,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2022-11-02 20:55:12,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2022-11-02 20:55:12,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2022-11-02 20:55:12,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2022-11-02 20:55:12,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2022-11-02 20:55:12,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2022-11-02 20:55:12,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:55:12,181 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-02 20:55:12,183 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-02 20:55:12,184 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-02 20:55:12,311 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-02 20:55:12,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 521 places, 554 transitions, 1156 flow [2022-11-02 20:55:12,842 INFO L130 PetriNetUnfolder]: 191/1805 cut-off events. [2022-11-02 20:55:12,842 INFO L131 PetriNetUnfolder]: For 72/120 co-relation queries the response was YES. [2022-11-02 20:55:12,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1902 conditions, 1805 events. 191/1805 cut-off events. For 72/120 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 12536 event pairs, 2 based on Foata normal form. 0/1517 useless extension candidates. Maximal degree in co-relation 1122. Up to 32 conditions per place. [2022-11-02 20:55:12,880 INFO L82 GeneralOperation]: Start removeDead. Operand has 521 places, 554 transitions, 1156 flow [2022-11-02 20:55:12,905 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 521 places, 554 transitions, 1156 flow [2022-11-02 20:55:12,906 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:55:12,907 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;@345ad181, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:55:12,907 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2022-11-02 20:55:12,909 INFO L130 PetriNetUnfolder]: 0/40 cut-off events. [2022-11-02 20:55:12,909 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:55:12,910 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:55:12,910 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:55:12,910 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-02 20:55:12,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:12,910 INFO L85 PathProgramCache]: Analyzing trace with hash -922081216, now seen corresponding path program 1 times [2022-11-02 20:55:12,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:12,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704108385] [2022-11-02 20:55:12,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:12,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:12,940 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 20:55:12,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:12,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704108385] [2022-11-02 20:55:12,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704108385] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:12,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:12,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:55:12,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783391415] [2022-11-02 20:55:12,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:12,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:55:12,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:12,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:55:12,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:55:12,945 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 491 out of 554 [2022-11-02 20:55:12,947 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 521 places, 554 transitions, 1156 flow. Second operand has 3 states, 3 states have (on average 492.3333333333333) internal successors, (1477), 3 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:12,947 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:55:12,947 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 491 of 554 [2022-11-02 20:55:12,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:55:21,171 INFO L130 PetriNetUnfolder]: 3136/30409 cut-off events. [2022-11-02 20:55:21,171 INFO L131 PetriNetUnfolder]: For 4595/4955 co-relation queries the response was YES. [2022-11-02 20:55:21,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35905 conditions, 30409 events. 3136/30409 cut-off events. For 4595/4955 co-relation queries the response was YES. Maximal size of possible extension queue 494. Compared 417334 event pairs, 2284 based on Foata normal form. 3470/29981 useless extension candidates. Maximal degree in co-relation 18879. Up to 3939 conditions per place. [2022-11-02 20:55:21,819 INFO L137 encePairwiseOnDemand]: 523/554 looper letters, 30 selfloop transitions, 2 changer transitions 0/523 dead transitions. [2022-11-02 20:55:21,819 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 523 transitions, 1158 flow [2022-11-02 20:55:21,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:55:21,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:55:21,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1534 transitions. [2022-11-02 20:55:21,823 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9229843561973526 [2022-11-02 20:55:21,824 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1534 transitions. [2022-11-02 20:55:21,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1534 transitions. [2022-11-02 20:55:21,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:55:21,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1534 transitions. [2022-11-02 20:55:21,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 511.3333333333333) internal successors, (1534), 3 states have internal predecessors, (1534), 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 20:55:21,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 554.0) internal successors, (2216), 4 states have internal predecessors, (2216), 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 20:55:21,832 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 554.0) internal successors, (2216), 4 states have internal predecessors, (2216), 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 20:55:21,832 INFO L175 Difference]: Start difference. First operand has 521 places, 554 transitions, 1156 flow. Second operand 3 states and 1534 transitions. [2022-11-02 20:55:21,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 523 transitions, 1158 flow [2022-11-02 20:55:21,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 520 places, 523 transitions, 1158 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:55:21,851 INFO L231 Difference]: Finished difference. Result has 520 places, 523 transitions, 1098 flow [2022-11-02 20:55:21,852 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=554, PETRI_DIFFERENCE_MINUEND_FLOW=1094, PETRI_DIFFERENCE_MINUEND_PLACES=518, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=523, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=521, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1098, PETRI_PLACES=520, PETRI_TRANSITIONS=523} [2022-11-02 20:55:21,854 INFO L287 CegarLoopForPetriNet]: 521 programPoint places, -1 predicate places. [2022-11-02 20:55:21,854 INFO L495 AbstractCegarLoop]: Abstraction has has 520 places, 523 transitions, 1098 flow [2022-11-02 20:55:21,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 492.3333333333333) internal successors, (1477), 3 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:21,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:55:21,855 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:55:21,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:55:21,856 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-02 20:55:21,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:21,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1832874737, now seen corresponding path program 1 times [2022-11-02 20:55:21,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:21,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785409972] [2022-11-02 20:55:21,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:21,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:21,902 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 20:55:21,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:21,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785409972] [2022-11-02 20:55:21,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785409972] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:21,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:21,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:55:21,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294823732] [2022-11-02 20:55:21,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:21,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:55:21,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:21,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:55:21,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:55:21,906 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 494 out of 554 [2022-11-02 20:55:21,908 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 520 places, 523 transitions, 1098 flow. Second operand has 3 states, 3 states have (on average 495.3333333333333) internal successors, (1486), 3 states have internal predecessors, (1486), 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 20:55:21,908 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:55:21,908 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 494 of 554 [2022-11-02 20:55:21,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand