./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-word-trans.wvr.c --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_32da3cd7-cee1-42d1-bc10-914fc1ed6dea/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32da3cd7-cee1-42d1-bc10-914fc1ed6dea/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_32da3cd7-cee1-42d1-bc10-914fc1ed6dea/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32da3cd7-cee1-42d1-bc10-914fc1ed6dea/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-word-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32da3cd7-cee1-42d1-bc10-914fc1ed6dea/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_32da3cd7-cee1-42d1-bc10-914fc1ed6dea/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 73462fb8dbdc39f07edabdd79150cbad579fbba379eb033cd2e89802bbb8b9a6 --- 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 20:05:03,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:05:03,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:05:03,754 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:05:03,755 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:05:03,758 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:05:03,761 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:05:03,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:05:03,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:05:03,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:05:03,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:05:03,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:05:03,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:05:03,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:05:03,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:05:03,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:05:03,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:05:03,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:05:03,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:05:03,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:05:03,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:05:03,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:05:03,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:05:03,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:05:03,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:05:03,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:05:03,791 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:05:03,792 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:05:03,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:05:03,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:05:03,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:05:03,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:05:03,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:05:03,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:05:03,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:05:03,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:05:03,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:05:03,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:05:03,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:05:03,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:05:03,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:05:03,801 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32da3cd7-cee1-42d1-bc10-914fc1ed6dea/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:05:03,841 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:05:03,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:05:03,842 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:05:03,842 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:05:03,843 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:05:03,843 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:05:03,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:05:03,844 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:05:03,845 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:05:03,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:05:03,845 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:05:03,845 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:05:03,846 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:05:03,846 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:05:03,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:05:03,846 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:05:03,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:05:03,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:05:03,847 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:05:03,847 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:05:03,847 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:05:03,848 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:05:03,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:05:03,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:05:03,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:05:03,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:05:03,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:05:03,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:05:03,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:05:03,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:05:03,850 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:05:03,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:05:03,850 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:05:03,850 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:05:03,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:05:03,851 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_32da3cd7-cee1-42d1-bc10-914fc1ed6dea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32da3cd7-cee1-42d1-bc10-914fc1ed6dea/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73462fb8dbdc39f07edabdd79150cbad579fbba379eb033cd2e89802bbb8b9a6 [2022-11-02 20:05:04,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:05:04,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:05:04,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:05:04,231 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:05:04,232 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:05:04,233 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32da3cd7-cee1-42d1-bc10-914fc1ed6dea/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/chl-word-trans.wvr.c [2022-11-02 20:05:04,307 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32da3cd7-cee1-42d1-bc10-914fc1ed6dea/bin/uautomizer-Dbtcem3rbc/data/baccc45a0/40ffe784875c4f0686dd80a368b40487/FLAGb12476148 [2022-11-02 20:05:04,737 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:05:04,737 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32da3cd7-cee1-42d1-bc10-914fc1ed6dea/sv-benchmarks/c/weaver/chl-word-trans.wvr.c [2022-11-02 20:05:04,747 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32da3cd7-cee1-42d1-bc10-914fc1ed6dea/bin/uautomizer-Dbtcem3rbc/data/baccc45a0/40ffe784875c4f0686dd80a368b40487/FLAGb12476148 [2022-11-02 20:05:05,118 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32da3cd7-cee1-42d1-bc10-914fc1ed6dea/bin/uautomizer-Dbtcem3rbc/data/baccc45a0/40ffe784875c4f0686dd80a368b40487 [2022-11-02 20:05:05,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:05:05,122 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:05:05,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:05:05,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:05:05,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:05:05,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:05:05" (1/1) ... [2022-11-02 20:05:05,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e9a55a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:05, skipping insertion in model container [2022-11-02 20:05:05,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:05:05" (1/1) ... [2022-11-02 20:05:05,137 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:05:05,158 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:05:05,485 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_32da3cd7-cee1-42d1-bc10-914fc1ed6dea/sv-benchmarks/c/weaver/chl-word-trans.wvr.c[3292,3305] [2022-11-02 20:05:05,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:05:05,523 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:05:05,600 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_32da3cd7-cee1-42d1-bc10-914fc1ed6dea/sv-benchmarks/c/weaver/chl-word-trans.wvr.c[3292,3305] [2022-11-02 20:05:05,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:05:05,641 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:05:05,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:05 WrapperNode [2022-11-02 20:05:05,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:05:05,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:05:05,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:05:05,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:05:05,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:05" (1/1) ... [2022-11-02 20:05:05,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:05" (1/1) ... [2022-11-02 20:05:05,720 INFO L138 Inliner]: procedures = 25, calls = 44, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 264 [2022-11-02 20:05:05,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:05:05,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:05:05,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:05:05,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:05:05,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:05" (1/1) ... [2022-11-02 20:05:05,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:05" (1/1) ... [2022-11-02 20:05:05,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:05" (1/1) ... [2022-11-02 20:05:05,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:05" (1/1) ... [2022-11-02 20:05:05,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:05" (1/1) ... [2022-11-02 20:05:05,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:05" (1/1) ... [2022-11-02 20:05:05,768 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:05" (1/1) ... [2022-11-02 20:05:05,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:05" (1/1) ... [2022-11-02 20:05:05,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:05:05,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:05:05,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:05:05,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:05:05,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:05" (1/1) ... [2022-11-02 20:05:05,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:05:05,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32da3cd7-cee1-42d1-bc10-914fc1ed6dea/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:05:05,827 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32da3cd7-cee1-42d1-bc10-914fc1ed6dea/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:05:05,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32da3cd7-cee1-42d1-bc10-914fc1ed6dea/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:05:05,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:05:05,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:05:05,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:05:05,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:05:05,876 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 20:05:05,876 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 20:05:05,876 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 20:05:05,876 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 20:05:05,877 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-02 20:05:05,877 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-02 20:05:05,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:05:05,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:05:05,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:05:05,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:05:05,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:05:05,880 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 20:05:06,072 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:05:06,074 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:05:07,214 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:05:07,238 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:05:07,238 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-02 20:05:07,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:05:07 BoogieIcfgContainer [2022-11-02 20:05:07,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:05:07,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:05:07,246 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:05:07,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:05:07,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:05:05" (1/3) ... [2022-11-02 20:05:07,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e48abc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:05:07, skipping insertion in model container [2022-11-02 20:05:07,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:05" (2/3) ... [2022-11-02 20:05:07,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e48abc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:05:07, skipping insertion in model container [2022-11-02 20:05:07,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:05:07" (3/3) ... [2022-11-02 20:05:07,255 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-trans.wvr.c [2022-11-02 20:05:07,264 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:05:07,273 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:05:07,274 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2022-11-02 20:05:07,274 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:05:07,463 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-02 20:05:07,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 660 places, 689 transitions, 1402 flow [2022-11-02 20:05:08,003 INFO L130 PetriNetUnfolder]: 39/686 cut-off events. [2022-11-02 20:05:08,004 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 20:05:08,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 686 events. 39/686 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1906 event pairs, 0 based on Foata normal form. 0/569 useless extension candidates. Maximal degree in co-relation 501. Up to 3 conditions per place. [2022-11-02 20:05:08,028 INFO L82 GeneralOperation]: Start removeDead. Operand has 660 places, 689 transitions, 1402 flow [2022-11-02 20:05:08,088 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 635 places, 662 transitions, 1342 flow [2022-11-02 20:05:08,098 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:05:08,113 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;@654aa0bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:05:08,113 INFO L358 AbstractCegarLoop]: Starting to check reachability of 138 error locations. [2022-11-02 20:05:08,120 INFO L130 PetriNetUnfolder]: 0/32 cut-off events. [2022-11-02 20:05:08,121 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:05:08,121 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:05:08,122 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:05:08,123 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-02 20:05:08,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:05:08,130 INFO L85 PathProgramCache]: Analyzing trace with hash -626981728, now seen corresponding path program 1 times [2022-11-02 20:05:08,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:05:08,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642584410] [2022-11-02 20:05:08,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:05:08,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:05:08,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:05:08,457 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 20:05:08,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:05:08,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642584410] [2022-11-02 20:05:08,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642584410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:05:08,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:05:08,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:05:08,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729579405] [2022-11-02 20:05:08,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:05:08,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:05:08,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:05:08,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:05:08,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:05:08,542 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 651 out of 689 [2022-11-02 20:05:08,557 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 635 places, 662 transitions, 1342 flow. Second operand has 3 states, 3 states have (on average 652.3333333333334) internal successors, (1957), 3 states have internal predecessors, (1957), 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 20:05:08,560 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:05:08,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 651 of 689 [2022-11-02 20:05:08,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:05:09,681 INFO L130 PetriNetUnfolder]: 162/2028 cut-off events. [2022-11-02 20:05:09,682 INFO L131 PetriNetUnfolder]: For 60/60 co-relation queries the response was YES. [2022-11-02 20:05:09,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2221 conditions, 2028 events. 162/2028 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 13861 event pairs, 60 based on Foata normal form. 83/1688 useless extension candidates. Maximal degree in co-relation 1640. Up to 142 conditions per place. [2022-11-02 20:05:09,775 INFO L137 encePairwiseOnDemand]: 674/689 looper letters, 21 selfloop transitions, 2 changer transitions 6/649 dead transitions. [2022-11-02 20:05:09,776 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 636 places, 649 transitions, 1362 flow [2022-11-02 20:05:09,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:05:09,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:05:09,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1989 transitions. [2022-11-02 20:05:09,810 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9622641509433962 [2022-11-02 20:05:09,811 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1989 transitions. [2022-11-02 20:05:09,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1989 transitions. [2022-11-02 20:05:09,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:05:09,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1989 transitions. [2022-11-02 20:05:09,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 663.0) internal successors, (1989), 3 states have internal predecessors, (1989), 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 20:05:09,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 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 20:05:09,850 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 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 20:05:09,852 INFO L175 Difference]: Start difference. First operand has 635 places, 662 transitions, 1342 flow. Second operand 3 states and 1989 transitions. [2022-11-02 20:05:09,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 636 places, 649 transitions, 1362 flow [2022-11-02 20:05:09,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 630 places, 649 transitions, 1350 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-02 20:05:09,893 INFO L231 Difference]: Finished difference. Result has 630 places, 643 transitions, 1296 flow [2022-11-02 20:05:09,897 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=689, PETRI_DIFFERENCE_MINUEND_FLOW=1304, PETRI_DIFFERENCE_MINUEND_PLACES=628, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=649, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=647, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1296, PETRI_PLACES=630, PETRI_TRANSITIONS=643} [2022-11-02 20:05:09,902 INFO L287 CegarLoopForPetriNet]: 635 programPoint places, -5 predicate places. [2022-11-02 20:05:09,903 INFO L495 AbstractCegarLoop]: Abstraction has has 630 places, 643 transitions, 1296 flow [2022-11-02 20:05:09,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 652.3333333333334) internal successors, (1957), 3 states have internal predecessors, (1957), 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 20:05:09,905 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:05:09,906 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] [2022-11-02 20:05:09,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:05:09,906 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-02 20:05:09,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:05:09,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1663645723, now seen corresponding path program 1 times [2022-11-02 20:05:09,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:05:09,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900815977] [2022-11-02 20:05:09,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:05:09,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:05:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:05:10,016 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 20:05:10,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:05:10,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900815977] [2022-11-02 20:05:10,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900815977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:05:10,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:05:10,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:05:10,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677284484] [2022-11-02 20:05:10,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:05:10,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:05:10,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:05:10,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:05:10,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:05:10,030 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 651 out of 689 [2022-11-02 20:05:10,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 630 places, 643 transitions, 1296 flow. Second operand has 3 states, 3 states have (on average 652.3333333333334) internal successors, (1957), 3 states have internal predecessors, (1957), 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 20:05:10,040 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:05:10,040 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 651 of 689 [2022-11-02 20:05:10,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:05:10,985 INFO L130 PetriNetUnfolder]: 265/2491 cut-off events. [2022-11-02 20:05:10,986 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-02 20:05:11,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2810 conditions, 2491 events. 265/2491 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 19620 event pairs, 132 based on Foata normal form. 0/1978 useless extension candidates. Maximal degree in co-relation 2770. Up to 256 conditions per place. [2022-11-02 20:05:11,057 INFO L137 encePairwiseOnDemand]: 686/689 looper letters, 21 selfloop transitions, 2 changer transitions 0/642 dead transitions. [2022-11-02 20:05:11,057 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 625 places, 642 transitions, 1340 flow [2022-11-02 20:05:11,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:05:11,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:05:11,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1977 transitions. [2022-11-02 20:05:11,063 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9564586357039188 [2022-11-02 20:05:11,063 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1977 transitions. [2022-11-02 20:05:11,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1977 transitions. [2022-11-02 20:05:11,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:05:11,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1977 transitions. [2022-11-02 20:05:11,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 659.0) internal successors, (1977), 3 states have internal predecessors, (1977), 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 20:05:11,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 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 20:05:11,076 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 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 20:05:11,077 INFO L175 Difference]: Start difference. First operand has 630 places, 643 transitions, 1296 flow. Second operand 3 states and 1977 transitions. [2022-11-02 20:05:11,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 625 places, 642 transitions, 1340 flow [2022-11-02 20:05:11,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 623 places, 642 transitions, 1336 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:05:11,090 INFO L231 Difference]: Finished difference. Result has 623 places, 642 transitions, 1294 flow [2022-11-02 20:05:11,091 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=689, PETRI_DIFFERENCE_MINUEND_FLOW=1290, PETRI_DIFFERENCE_MINUEND_PLACES=621, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=642, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=640, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1294, PETRI_PLACES=623, PETRI_TRANSITIONS=642} [2022-11-02 20:05:11,093 INFO L287 CegarLoopForPetriNet]: 635 programPoint places, -12 predicate places. [2022-11-02 20:05:11,093 INFO L495 AbstractCegarLoop]: Abstraction has has 623 places, 642 transitions, 1294 flow [2022-11-02 20:05:11,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 652.3333333333334) internal successors, (1957), 3 states have internal predecessors, (1957), 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 20:05:11,095 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:05:11,095 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] [2022-11-02 20:05:11,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:05:11,096 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-02 20:05:11,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:05:11,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1885668744, now seen corresponding path program 1 times [2022-11-02 20:05:11,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:05:11,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286243630] [2022-11-02 20:05:11,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:05:11,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:05:11,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:05:11,219 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 20:05:11,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:05:11,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286243630] [2022-11-02 20:05:11,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286243630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:05:11,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:05:11,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:05:11,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936295733] [2022-11-02 20:05:11,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:05:11,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:05:11,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:05:11,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:05:11,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:05:11,225 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 651 out of 689 [2022-11-02 20:05:11,229 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 623 places, 642 transitions, 1294 flow. Second operand has 3 states, 3 states have (on average 652.3333333333334) internal successors, (1957), 3 states have internal predecessors, (1957), 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 20:05:11,229 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:05:11,229 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 651 of 689 [2022-11-02 20:05:11,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:05:12,160 INFO L130 PetriNetUnfolder]: 283/2758 cut-off events. [2022-11-02 20:05:12,161 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2022-11-02 20:05:12,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3029 conditions, 2758 events. 283/2758 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 22189 event pairs, 132 based on Foata normal form. 0/2189 useless extension candidates. Maximal degree in co-relation 2982. Up to 256 conditions per place. [2022-11-02 20:05:12,247 INFO L137 encePairwiseOnDemand]: 686/689 looper letters, 21 selfloop transitions, 2 changer transitions 0/641 dead transitions. [2022-11-02 20:05:12,247 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 624 places, 641 transitions, 1338 flow [2022-11-02 20:05:12,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:05:12,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:05:12,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1977 transitions. [2022-11-02 20:05:12,255 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9564586357039188 [2022-11-02 20:05:12,255 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1977 transitions. [2022-11-02 20:05:12,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1977 transitions. [2022-11-02 20:05:12,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:05:12,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1977 transitions. [2022-11-02 20:05:12,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 659.0) internal successors, (1977), 3 states have internal predecessors, (1977), 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 20:05:12,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 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 20:05:12,269 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 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 20:05:12,270 INFO L175 Difference]: Start difference. First operand has 623 places, 642 transitions, 1294 flow. Second operand 3 states and 1977 transitions. [2022-11-02 20:05:12,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 624 places, 641 transitions, 1338 flow [2022-11-02 20:05:12,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 622 places, 641 transitions, 1334 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:05:12,290 INFO L231 Difference]: Finished difference. Result has 622 places, 641 transitions, 1292 flow [2022-11-02 20:05:12,291 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=689, PETRI_DIFFERENCE_MINUEND_FLOW=1288, PETRI_DIFFERENCE_MINUEND_PLACES=620, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=641, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=639, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1292, PETRI_PLACES=622, PETRI_TRANSITIONS=641} [2022-11-02 20:05:12,293 INFO L287 CegarLoopForPetriNet]: 635 programPoint places, -13 predicate places. [2022-11-02 20:05:12,294 INFO L495 AbstractCegarLoop]: Abstraction has has 622 places, 641 transitions, 1292 flow [2022-11-02 20:05:12,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 652.3333333333334) internal successors, (1957), 3 states have internal predecessors, (1957), 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 20:05:12,295 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:05:12,295 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] [2022-11-02 20:05:12,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:05:12,295 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-02 20:05:12,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:05:12,296 INFO L85 PathProgramCache]: Analyzing trace with hash 2026555040, now seen corresponding path program 1 times [2022-11-02 20:05:12,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:05:12,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720831524] [2022-11-02 20:05:12,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:05:12,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:05:12,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:05:12,411 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 20:05:12,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:05:12,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720831524] [2022-11-02 20:05:12,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720831524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:05:12,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:05:12,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:05:12,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176161270] [2022-11-02 20:05:12,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:05:12,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:05:12,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:05:12,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:05:12,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:05:12,416 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 648 out of 689 [2022-11-02 20:05:12,419 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 622 places, 641 transitions, 1292 flow. Second operand has 3 states, 3 states have (on average 649.3333333333334) internal successors, (1948), 3 states have internal predecessors, (1948), 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 20:05:12,419 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:05:12,419 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 648 of 689 [2022-11-02 20:05:12,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:05:13,122 INFO L130 PetriNetUnfolder]: 154/1909 cut-off events. [2022-11-02 20:05:13,123 INFO L131 PetriNetUnfolder]: For 15/21 co-relation queries the response was YES. [2022-11-02 20:05:13,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2090 conditions, 1909 events. 154/1909 cut-off events. For 15/21 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 12639 event pairs, 60 based on Foata normal form. 0/1538 useless extension candidates. Maximal degree in co-relation 2036. Up to 160 conditions per place. [2022-11-02 20:05:13,275 INFO L137 encePairwiseOnDemand]: 686/689 looper letters, 24 selfloop transitions, 2 changer transitions 0/640 dead transitions. [2022-11-02 20:05:13,275 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 623 places, 640 transitions, 1342 flow [2022-11-02 20:05:13,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:05:13,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:05:13,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1971 transitions. [2022-11-02 20:05:13,281 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.95355587808418 [2022-11-02 20:05:13,281 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1971 transitions. [2022-11-02 20:05:13,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1971 transitions. [2022-11-02 20:05:13,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:05:13,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1971 transitions. [2022-11-02 20:05:13,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 657.0) internal successors, (1971), 3 states have internal predecessors, (1971), 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 20:05:13,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 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 20:05:13,297 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 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 20:05:13,297 INFO L175 Difference]: Start difference. First operand has 622 places, 641 transitions, 1292 flow. Second operand 3 states and 1971 transitions. [2022-11-02 20:05:13,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 623 places, 640 transitions, 1342 flow [2022-11-02 20:05:13,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 621 places, 640 transitions, 1338 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:05:13,312 INFO L231 Difference]: Finished difference. Result has 621 places, 640 transitions, 1290 flow [2022-11-02 20:05:13,314 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=689, PETRI_DIFFERENCE_MINUEND_FLOW=1286, PETRI_DIFFERENCE_MINUEND_PLACES=619, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=640, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=638, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1290, PETRI_PLACES=621, PETRI_TRANSITIONS=640} [2022-11-02 20:05:13,315 INFO L287 CegarLoopForPetriNet]: 635 programPoint places, -14 predicate places. [2022-11-02 20:05:13,315 INFO L495 AbstractCegarLoop]: Abstraction has has 621 places, 640 transitions, 1290 flow [2022-11-02 20:05:13,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 649.3333333333334) internal successors, (1948), 3 states have internal predecessors, (1948), 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 20:05:13,317 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:05:13,317 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:05:13,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:05:13,318 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-02 20:05:13,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:05:13,318 INFO L85 PathProgramCache]: Analyzing trace with hash 892884178, now seen corresponding path program 1 times [2022-11-02 20:05:13,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:05:13,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937207970] [2022-11-02 20:05:13,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:05:13,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:05:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:05:13,393 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 20:05:13,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:05:13,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937207970] [2022-11-02 20:05:13,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937207970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:05:13,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:05:13,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:05:13,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643498220] [2022-11-02 20:05:13,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:05:13,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:05:13,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:05:13,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:05:13,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:05:13,401 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 648 out of 689 [2022-11-02 20:05:13,405 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 621 places, 640 transitions, 1290 flow. Second operand has 3 states, 3 states have (on average 649.3333333333334) internal successors, (1948), 3 states have internal predecessors, (1948), 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 20:05:13,405 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:05:13,405 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 648 of 689 [2022-11-02 20:05:13,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:05:14,446 INFO L130 PetriNetUnfolder]: 304/2944 cut-off events. [2022-11-02 20:05:14,446 INFO L131 PetriNetUnfolder]: For 21/30 co-relation queries the response was YES. [2022-11-02 20:05:14,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3310 conditions, 2944 events. 304/2944 cut-off events. For 21/30 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 24716 event pairs, 132 based on Foata normal form. 0/2341 useless extension candidates. Maximal degree in co-relation 3249. Up to 303 conditions per place. [2022-11-02 20:05:14,534 INFO L137 encePairwiseOnDemand]: 686/689 looper letters, 24 selfloop transitions, 2 changer transitions 0/639 dead transitions. [2022-11-02 20:05:14,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 622 places, 639 transitions, 1340 flow [2022-11-02 20:05:14,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:05:14,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:05:14,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1971 transitions. [2022-11-02 20:05:14,540 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.95355587808418 [2022-11-02 20:05:14,540 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1971 transitions. [2022-11-02 20:05:14,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1971 transitions. [2022-11-02 20:05:14,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:05:14,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1971 transitions. [2022-11-02 20:05:14,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 657.0) internal successors, (1971), 3 states have internal predecessors, (1971), 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 20:05:14,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 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 20:05:14,556 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 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 20:05:14,556 INFO L175 Difference]: Start difference. First operand has 621 places, 640 transitions, 1290 flow. Second operand 3 states and 1971 transitions. [2022-11-02 20:05:14,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 622 places, 639 transitions, 1340 flow [2022-11-02 20:05:14,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 620 places, 639 transitions, 1336 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:05:14,571 INFO L231 Difference]: Finished difference. Result has 620 places, 639 transitions, 1288 flow [2022-11-02 20:05:14,572 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=689, PETRI_DIFFERENCE_MINUEND_FLOW=1284, PETRI_DIFFERENCE_MINUEND_PLACES=618, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=639, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=637, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1288, PETRI_PLACES=620, PETRI_TRANSITIONS=639} [2022-11-02 20:05:14,576 INFO L287 CegarLoopForPetriNet]: 635 programPoint places, -15 predicate places. [2022-11-02 20:05:14,576 INFO L495 AbstractCegarLoop]: Abstraction has has 620 places, 639 transitions, 1288 flow [2022-11-02 20:05:14,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 649.3333333333334) internal successors, (1948), 3 states have internal predecessors, (1948), 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 20:05:14,578 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:05:14,579 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] [2022-11-02 20:05:14,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:05:14,579 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-02 20:05:14,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:05:14,581 INFO L85 PathProgramCache]: Analyzing trace with hash -645340874, now seen corresponding path program 1 times [2022-11-02 20:05:14,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:05:14,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634569929] [2022-11-02 20:05:14,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:05:14,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:05:14,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:05:14,672 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 20:05:14,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:05:14,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634569929] [2022-11-02 20:05:14,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634569929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:05:14,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:05:14,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:05:14,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12352583] [2022-11-02 20:05:14,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:05:14,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:05:14,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:05:14,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:05:14,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:05:14,678 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 648 out of 689 [2022-11-02 20:05:14,682 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 620 places, 639 transitions, 1288 flow. Second operand has 3 states, 3 states have (on average 649.3333333333334) internal successors, (1948), 3 states have internal predecessors, (1948), 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 20:05:14,682 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:05:14,682 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 648 of 689 [2022-11-02 20:05:14,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:05:15,763 INFO L130 PetriNetUnfolder]: 301/2698 cut-off events. [2022-11-02 20:05:15,763 INFO L131 PetriNetUnfolder]: For 71/75 co-relation queries the response was YES. [2022-11-02 20:05:15,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3032 conditions, 2698 events. 301/2698 cut-off events. For 71/75 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 20827 event pairs, 132 based on Foata normal form. 0/2168 useless extension candidates. Maximal degree in co-relation 2964. Up to 319 conditions per place. [2022-11-02 20:05:15,868 INFO L137 encePairwiseOnDemand]: 686/689 looper letters, 24 selfloop transitions, 2 changer transitions 0/638 dead transitions. [2022-11-02 20:05:15,868 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 621 places, 638 transitions, 1338 flow [2022-11-02 20:05:15,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:05:15,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:05:15,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1971 transitions. [2022-11-02 20:05:15,875 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.95355587808418 [2022-11-02 20:05:15,875 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1971 transitions. [2022-11-02 20:05:15,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1971 transitions. [2022-11-02 20:05:15,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:05:15,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1971 transitions. [2022-11-02 20:05:15,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 657.0) internal successors, (1971), 3 states have internal predecessors, (1971), 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 20:05:15,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 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 20:05:15,893 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 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 20:05:15,893 INFO L175 Difference]: Start difference. First operand has 620 places, 639 transitions, 1288 flow. Second operand 3 states and 1971 transitions. [2022-11-02 20:05:15,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 621 places, 638 transitions, 1338 flow [2022-11-02 20:05:15,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 619 places, 638 transitions, 1334 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:05:15,912 INFO L231 Difference]: Finished difference. Result has 619 places, 638 transitions, 1286 flow [2022-11-02 20:05:15,913 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=689, PETRI_DIFFERENCE_MINUEND_FLOW=1282, PETRI_DIFFERENCE_MINUEND_PLACES=617, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=638, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=636, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1286, PETRI_PLACES=619, PETRI_TRANSITIONS=638} [2022-11-02 20:05:15,914 INFO L287 CegarLoopForPetriNet]: 635 programPoint places, -16 predicate places. [2022-11-02 20:05:15,915 INFO L495 AbstractCegarLoop]: Abstraction has has 619 places, 638 transitions, 1286 flow [2022-11-02 20:05:15,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 649.3333333333334) internal successors, (1948), 3 states have internal predecessors, (1948), 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 20:05:15,917 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:05:15,917 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] [2022-11-02 20:05:15,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:05:15,918 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-02 20:05:15,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:05:15,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1034947257, now seen corresponding path program 1 times [2022-11-02 20:05:15,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:05:15,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580096377] [2022-11-02 20:05:15,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:05:15,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:05:15,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:05:15,977 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 20:05:15,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:05:15,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580096377] [2022-11-02 20:05:15,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580096377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:05:15,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:05:15,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:05:15,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781251357] [2022-11-02 20:05:15,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:05:15,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:05:15,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:05:15,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:05:15,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:05:15,984 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 651 out of 689 [2022-11-02 20:05:15,988 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 619 places, 638 transitions, 1286 flow. Second operand has 3 states, 3 states have (on average 652.3333333333334) internal successors, (1957), 3 states have internal predecessors, (1957), 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 20:05:15,988 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:05:15,989 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 651 of 689 [2022-11-02 20:05:15,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:05:16,736 INFO L130 PetriNetUnfolder]: 114/1668 cut-off events. [2022-11-02 20:05:16,736 INFO L131 PetriNetUnfolder]: For 11/15 co-relation queries the response was YES. [2022-11-02 20:05:16,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1777 conditions, 1668 events. 114/1668 cut-off events. For 11/15 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10259 event pairs, 32 based on Foata normal form. 0/1377 useless extension candidates. Maximal degree in co-relation 1701. Up to 91 conditions per place. [2022-11-02 20:05:16,804 INFO L137 encePairwiseOnDemand]: 683/689 looper letters, 17 selfloop transitions, 1 changer transitions 0/633 dead transitions. [2022-11-02 20:05:16,804 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 616 places, 633 transitions, 1312 flow [2022-11-02 20:05:16,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:05:16,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:05:16,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1976 transitions. [2022-11-02 20:05:16,812 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9559748427672956 [2022-11-02 20:05:16,812 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1976 transitions. [2022-11-02 20:05:16,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1976 transitions. [2022-11-02 20:05:16,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:05:16,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1976 transitions. [2022-11-02 20:05:16,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 658.6666666666666) internal successors, (1976), 3 states have internal predecessors, (1976), 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 20:05:16,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 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 20:05:16,827 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 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 20:05:16,827 INFO L175 Difference]: Start difference. First operand has 619 places, 638 transitions, 1286 flow. Second operand 3 states and 1976 transitions. [2022-11-02 20:05:16,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 616 places, 633 transitions, 1312 flow [2022-11-02 20:05:16,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 614 places, 633 transitions, 1308 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:05:16,845 INFO L231 Difference]: Finished difference. Result has 614 places, 633 transitions, 1274 flow [2022-11-02 20:05:16,847 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=689, PETRI_DIFFERENCE_MINUEND_FLOW=1272, PETRI_DIFFERENCE_MINUEND_PLACES=612, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=633, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=632, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1274, PETRI_PLACES=614, PETRI_TRANSITIONS=633} [2022-11-02 20:05:16,848 INFO L287 CegarLoopForPetriNet]: 635 programPoint places, -21 predicate places. [2022-11-02 20:05:16,848 INFO L495 AbstractCegarLoop]: Abstraction has has 614 places, 633 transitions, 1274 flow [2022-11-02 20:05:16,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 652.3333333333334) internal successors, (1957), 3 states have internal predecessors, (1957), 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 20:05:16,849 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:05:16,850 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:05:16,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:05:16,850 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-02 20:05:16,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:05:16,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1015846608, now seen corresponding path program 1 times [2022-11-02 20:05:16,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:05:16,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873114626] [2022-11-02 20:05:16,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:05:16,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:05:16,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:05:16,999 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 20:05:17,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:05:17,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873114626] [2022-11-02 20:05:17,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873114626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:05:17,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:05:17,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:05:17,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537663486] [2022-11-02 20:05:17,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:05:17,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:05:17,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:05:17,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:05:17,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:05:17,007 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 651 out of 689 [2022-11-02 20:05:17,015 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 614 places, 633 transitions, 1274 flow. Second operand has 3 states, 3 states have (on average 652.3333333333334) internal successors, (1957), 3 states have internal predecessors, (1957), 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 20:05:17,016 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:05:17,016 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 651 of 689 [2022-11-02 20:05:17,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:05:17,953 INFO L130 PetriNetUnfolder]: 169/1952 cut-off events. [2022-11-02 20:05:17,954 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-11-02 20:05:18,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2142 conditions, 1952 events. 169/1952 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 12392 event pairs, 60 based on Foata normal form. 0/1593 useless extension candidates. Maximal degree in co-relation 2067. Up to 170 conditions per place. [2022-11-02 20:05:18,048 INFO L137 encePairwiseOnDemand]: 686/689 looper letters, 21 selfloop transitions, 2 changer transitions 0/632 dead transitions. [2022-11-02 20:05:18,049 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 615 places, 632 transitions, 1318 flow [2022-11-02 20:05:18,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:05:18,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:05:18,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1977 transitions. [2022-11-02 20:05:18,057 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9564586357039188 [2022-11-02 20:05:18,057 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1977 transitions. [2022-11-02 20:05:18,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1977 transitions. [2022-11-02 20:05:18,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:05:18,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1977 transitions. [2022-11-02 20:05:18,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 659.0) internal successors, (1977), 3 states have internal predecessors, (1977), 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 20:05:18,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 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 20:05:18,074 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 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 20:05:18,074 INFO L175 Difference]: Start difference. First operand has 614 places, 633 transitions, 1274 flow. Second operand 3 states and 1977 transitions. [2022-11-02 20:05:18,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 615 places, 632 transitions, 1318 flow [2022-11-02 20:05:18,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 614 places, 632 transitions, 1317 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:05:18,093 INFO L231 Difference]: Finished difference. Result has 614 places, 632 transitions, 1275 flow [2022-11-02 20:05:18,094 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=689, PETRI_DIFFERENCE_MINUEND_FLOW=1271, PETRI_DIFFERENCE_MINUEND_PLACES=612, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=632, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=630, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1275, PETRI_PLACES=614, PETRI_TRANSITIONS=632} [2022-11-02 20:05:18,095 INFO L287 CegarLoopForPetriNet]: 635 programPoint places, -21 predicate places. [2022-11-02 20:05:18,095 INFO L495 AbstractCegarLoop]: Abstraction has has 614 places, 632 transitions, 1275 flow [2022-11-02 20:05:18,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 652.3333333333334) internal successors, (1957), 3 states have internal predecessors, (1957), 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 20:05:18,097 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:05:18,097 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:05:18,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:05:18,097 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-02 20:05:18,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:05:18,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1862564174, now seen corresponding path program 1 times [2022-11-02 20:05:18,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:05:18,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489135670] [2022-11-02 20:05:18,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:05:18,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:05:18,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:05:18,805 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 20:05:18,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:05:18,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489135670] [2022-11-02 20:05:18,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489135670] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:05:18,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:05:18,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:05:18,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935117628] [2022-11-02 20:05:18,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:05:18,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:05:18,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:05:18,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:05:18,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:05:18,812 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 528 out of 689 [2022-11-02 20:05:18,817 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 614 places, 632 transitions, 1275 flow. Second operand has 6 states, 6 states have (on average 529.8333333333334) internal successors, (3179), 6 states have internal predecessors, (3179), 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 20:05:18,817 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:05:18,817 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 528 of 689 [2022-11-02 20:05:18,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand