./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db87a5-061b-4ee0-824d-d29dad6eb02f/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db87a5-061b-4ee0-824d-d29dad6eb02f/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db87a5-061b-4ee0-824d-d29dad6eb02f/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db87a5-061b-4ee0-824d-d29dad6eb02f/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db87a5-061b-4ee0-824d-d29dad6eb02f/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db87a5-061b-4ee0-824d-d29dad6eb02f/bin/uautomizer-ug76WZFUDN --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 a1f81f307bb0fd2f7d30845e458dba6e8acf9b3ee1da86e74967e4c3005bce62 --- 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-6b4ec56 [2022-11-20 09:27:07,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:27:07,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:27:07,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:27:07,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:27:07,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:27:07,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:27:07,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:27:07,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:27:07,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:27:07,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:27:07,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:27:07,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:27:08,001 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:27:08,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:27:08,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:27:08,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:27:08,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:27:08,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:27:08,011 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:27:08,012 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:27:08,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:27:08,015 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:27:08,016 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:27:08,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:27:08,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:27:08,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:27:08,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:27:08,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:27:08,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:27:08,023 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:27:08,024 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:27:08,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:27:08,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:27:08,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:27:08,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:27:08,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:27:08,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:27:08,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:27:08,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:27:08,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:27:08,035 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db87a5-061b-4ee0-824d-d29dad6eb02f/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 09:27:08,081 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:27:08,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:27:08,084 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:27:08,084 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:27:08,085 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:27:08,086 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:27:08,087 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:27:08,087 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:27:08,087 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:27:08,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:27:08,089 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:27:08,089 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:27:08,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:27:08,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:27:08,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:27:08,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:27:08,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:27:08,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:27:08,091 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 09:27:08,091 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:27:08,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:27:08,091 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:27:08,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:27:08,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:27:08,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:27:08,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:27:08,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:08,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:27:08,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:27:08,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:27:08,094 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:27:08,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:27:08,094 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:27:08,094 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:27:08,095 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:27:08,095 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_83db87a5-061b-4ee0-824d-d29dad6eb02f/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db87a5-061b-4ee0-824d-d29dad6eb02f/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1f81f307bb0fd2f7d30845e458dba6e8acf9b3ee1da86e74967e4c3005bce62 [2022-11-20 09:27:08,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:27:08,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:27:08,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:27:08,417 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:27:08,418 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:27:08,419 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db87a5-061b-4ee0-824d-d29dad6eb02f/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c [2022-11-20 09:27:11,487 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:27:11,677 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:27:11,677 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db87a5-061b-4ee0-824d-d29dad6eb02f/sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c [2022-11-20 09:27:11,684 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db87a5-061b-4ee0-824d-d29dad6eb02f/bin/uautomizer-ug76WZFUDN/data/e38eef9e9/4784b71f607b44b78e7283365dc0bac8/FLAG3ea015f6a [2022-11-20 09:27:11,698 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db87a5-061b-4ee0-824d-d29dad6eb02f/bin/uautomizer-ug76WZFUDN/data/e38eef9e9/4784b71f607b44b78e7283365dc0bac8 [2022-11-20 09:27:11,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:27:11,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:27:11,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:11,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:27:11,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:27:11,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:11" (1/1) ... [2022-11-20 09:27:11,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1abff64e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:11, skipping insertion in model container [2022-11-20 09:27:11,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:11" (1/1) ... [2022-11-20 09:27:11,718 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:27:11,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:27:11,924 WARN L237 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_83db87a5-061b-4ee0-824d-d29dad6eb02f/sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c[2385,2398] [2022-11-20 09:27:11,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:11,941 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:27:11,976 WARN L237 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_83db87a5-061b-4ee0-824d-d29dad6eb02f/sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c[2385,2398] [2022-11-20 09:27:11,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:11,995 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:27:11,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:11 WrapperNode [2022-11-20 09:27:11,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:11,996 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:27:11,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:27:11,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:27:12,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:11" (1/1) ... [2022-11-20 09:27:12,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:11" (1/1) ... [2022-11-20 09:27:12,052 INFO L138 Inliner]: procedures = 24, calls = 41, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 218 [2022-11-20 09:27:12,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:27:12,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:27:12,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:27:12,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:27:12,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:11" (1/1) ... [2022-11-20 09:27:12,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:11" (1/1) ... [2022-11-20 09:27:12,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:11" (1/1) ... [2022-11-20 09:27:12,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:11" (1/1) ... [2022-11-20 09:27:12,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:11" (1/1) ... [2022-11-20 09:27:12,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:11" (1/1) ... [2022-11-20 09:27:12,096 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:11" (1/1) ... [2022-11-20 09:27:12,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:11" (1/1) ... [2022-11-20 09:27:12,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:27:12,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:27:12,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:27:12,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:27:12,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:11" (1/1) ... [2022-11-20 09:27:12,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:12,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db87a5-061b-4ee0-824d-d29dad6eb02f/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:27:12,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db87a5-061b-4ee0-824d-d29dad6eb02f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:27:12,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db87a5-061b-4ee0-824d-d29dad6eb02f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:27:12,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:27:12,252 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 09:27:12,252 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 09:27:12,253 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 09:27:12,253 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 09:27:12,255 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 09:27:12,256 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 09:27:12,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:27:12,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:27:12,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 09:27:12,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 09:27:12,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:27:12,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:27:12,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 09:27:12,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:27:12,259 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 09:27:12,412 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:27:12,414 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:27:13,272 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:27:13,285 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:27:13,285 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-20 09:27:13,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:27:13 BoogieIcfgContainer [2022-11-20 09:27:13,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:27:13,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:27:13,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:27:13,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:27:13,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:27:11" (1/3) ... [2022-11-20 09:27:13,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204f06ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:27:13, skipping insertion in model container [2022-11-20 09:27:13,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:11" (2/3) ... [2022-11-20 09:27:13,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204f06ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:27:13, skipping insertion in model container [2022-11-20 09:27:13,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:27:13" (3/3) ... [2022-11-20 09:27:13,296 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-parray-copy.wvr.c [2022-11-20 09:27:13,305 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 09:27:13,320 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:27:13,320 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2022-11-20 09:27:13,320 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 09:27:13,490 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 09:27:13,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 374 places, 383 transitions, 790 flow [2022-11-20 09:27:13,734 INFO L130 PetriNetUnfolder]: 19/380 cut-off events. [2022-11-20 09:27:13,734 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 09:27:13,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 393 conditions, 380 events. 19/380 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 514 event pairs, 0 based on Foata normal form. 0/326 useless extension candidates. Maximal degree in co-relation 256. Up to 2 conditions per place. [2022-11-20 09:27:13,744 INFO L82 GeneralOperation]: Start removeDead. Operand has 374 places, 383 transitions, 790 flow [2022-11-20 09:27:13,751 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 350 places, 358 transitions, 734 flow [2022-11-20 09:27:13,761 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:27:13,768 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;@2f8d7855, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:27:13,769 INFO L358 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2022-11-20 09:27:13,773 INFO L130 PetriNetUnfolder]: 0/23 cut-off events. [2022-11-20 09:27:13,774 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 09:27:13,774 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:13,775 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:13,775 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-20 09:27:13,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:13,781 INFO L85 PathProgramCache]: Analyzing trace with hash 943271656, now seen corresponding path program 1 times [2022-11-20 09:27:13,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:13,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449289892] [2022-11-20 09:27:13,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:13,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:13,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:14,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:14,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:14,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449289892] [2022-11-20 09:27:14,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449289892] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:14,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:14,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:27:14,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742136161] [2022-11-20 09:27:14,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:14,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:27:14,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:14,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:27:14,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:27:14,085 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 383 [2022-11-20 09:27:14,090 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 358 transitions, 734 flow. Second operand has 3 states, 3 states have (on average 347.3333333333333) internal successors, (1042), 3 states have internal predecessors, (1042), 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) [2022-11-20 09:27:14,090 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:14,091 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 383 [2022-11-20 09:27:14,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:14,368 INFO L130 PetriNetUnfolder]: 62/755 cut-off events. [2022-11-20 09:27:14,368 INFO L131 PetriNetUnfolder]: For 81/93 co-relation queries the response was YES. [2022-11-20 09:27:14,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 893 conditions, 755 events. 62/755 cut-off events. For 81/93 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3288 event pairs, 39 based on Foata normal form. 38/646 useless extension candidates. Maximal degree in co-relation 604. Up to 99 conditions per place. [2022-11-20 09:27:14,381 INFO L137 encePairwiseOnDemand]: 369/383 looper letters, 21 selfloop transitions, 2 changer transitions 6/346 dead transitions. [2022-11-20 09:27:14,381 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 346 transitions, 756 flow [2022-11-20 09:27:14,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:27:14,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:27:14,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1073 transitions. [2022-11-20 09:27:14,399 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9338555265448216 [2022-11-20 09:27:14,400 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1073 transitions. [2022-11-20 09:27:14,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1073 transitions. [2022-11-20 09:27:14,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:14,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1073 transitions. [2022-11-20 09:27:14,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 357.6666666666667) internal successors, (1073), 3 states have internal predecessors, (1073), 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) [2022-11-20 09:27:14,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 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) [2022-11-20 09:27:14,422 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 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) [2022-11-20 09:27:14,424 INFO L175 Difference]: Start difference. First operand has 350 places, 358 transitions, 734 flow. Second operand 3 states and 1073 transitions. [2022-11-20 09:27:14,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 346 transitions, 756 flow [2022-11-20 09:27:14,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 346 transitions, 744 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 09:27:14,437 INFO L231 Difference]: Finished difference. Result has 345 places, 340 transitions, 690 flow [2022-11-20 09:27:14,439 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=698, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=690, PETRI_PLACES=345, PETRI_TRANSITIONS=340} [2022-11-20 09:27:14,443 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -5 predicate places. [2022-11-20 09:27:14,444 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 340 transitions, 690 flow [2022-11-20 09:27:14,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 347.3333333333333) internal successors, (1042), 3 states have internal predecessors, (1042), 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) [2022-11-20 09:27:14,445 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:14,445 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:14,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:27:14,446 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-20 09:27:14,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:14,447 INFO L85 PathProgramCache]: Analyzing trace with hash -239799142, now seen corresponding path program 1 times [2022-11-20 09:27:14,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:14,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661935257] [2022-11-20 09:27:14,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:14,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:14,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:14,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:14,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:14,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661935257] [2022-11-20 09:27:14,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661935257] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:14,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:14,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:27:14,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453688291] [2022-11-20 09:27:14,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:14,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:27:14,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:14,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:27:14,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:27:14,514 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 340 out of 383 [2022-11-20 09:27:14,516 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 340 transitions, 690 flow. Second operand has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 3 states have internal predecessors, (1024), 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) [2022-11-20 09:27:14,516 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:14,516 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 340 of 383 [2022-11-20 09:27:14,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:14,749 INFO L130 PetriNetUnfolder]: 38/647 cut-off events. [2022-11-20 09:27:14,750 INFO L131 PetriNetUnfolder]: For 9/26 co-relation queries the response was YES. [2022-11-20 09:27:14,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 742 conditions, 647 events. 38/647 cut-off events. For 9/26 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2537 event pairs, 21 based on Foata normal form. 0/541 useless extension candidates. Maximal degree in co-relation 710. Up to 80 conditions per place. [2022-11-20 09:27:14,761 INFO L137 encePairwiseOnDemand]: 380/383 looper letters, 27 selfloop transitions, 2 changer transitions 0/339 dead transitions. [2022-11-20 09:27:14,761 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 339 transitions, 746 flow [2022-11-20 09:27:14,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:27:14,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:27:14,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1050 transitions. [2022-11-20 09:27:14,765 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9138381201044387 [2022-11-20 09:27:14,765 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1050 transitions. [2022-11-20 09:27:14,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1050 transitions. [2022-11-20 09:27:14,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:14,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1050 transitions. [2022-11-20 09:27:14,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 350.0) internal successors, (1050), 3 states have internal predecessors, (1050), 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) [2022-11-20 09:27:14,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 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) [2022-11-20 09:27:14,776 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 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) [2022-11-20 09:27:14,776 INFO L175 Difference]: Start difference. First operand has 345 places, 340 transitions, 690 flow. Second operand 3 states and 1050 transitions. [2022-11-20 09:27:14,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 339 transitions, 746 flow [2022-11-20 09:27:14,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 339 transitions, 742 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:27:14,786 INFO L231 Difference]: Finished difference. Result has 338 places, 339 transitions, 688 flow [2022-11-20 09:27:14,787 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=688, PETRI_PLACES=338, PETRI_TRANSITIONS=339} [2022-11-20 09:27:14,788 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -12 predicate places. [2022-11-20 09:27:14,788 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 339 transitions, 688 flow [2022-11-20 09:27:14,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 3 states have internal predecessors, (1024), 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) [2022-11-20 09:27:14,790 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:14,790 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:14,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 09:27:14,791 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-20 09:27:14,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:14,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1881339077, now seen corresponding path program 1 times [2022-11-20 09:27:14,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:14,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941776163] [2022-11-20 09:27:14,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:14,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:14,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:14,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:14,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:14,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941776163] [2022-11-20 09:27:14,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941776163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:14,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:14,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:27:14,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408584052] [2022-11-20 09:27:14,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:14,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:27:14,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:14,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:27:14,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:27:14,872 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 383 [2022-11-20 09:27:14,876 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 339 transitions, 688 flow. Second operand has 3 states, 3 states have (on average 344.3333333333333) internal successors, (1033), 3 states have internal predecessors, (1033), 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) [2022-11-20 09:27:14,876 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:14,877 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 383 [2022-11-20 09:27:14,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:15,088 INFO L130 PetriNetUnfolder]: 27/591 cut-off events. [2022-11-20 09:27:15,088 INFO L131 PetriNetUnfolder]: For 8/17 co-relation queries the response was YES. [2022-11-20 09:27:15,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 655 conditions, 591 events. 27/591 cut-off events. For 8/17 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2089 event pairs, 12 based on Foata normal form. 0/512 useless extension candidates. Maximal degree in co-relation 615. Up to 50 conditions per place. [2022-11-20 09:27:15,095 INFO L137 encePairwiseOnDemand]: 376/383 looper letters, 19 selfloop transitions, 1 changer transitions 0/333 dead transitions. [2022-11-20 09:27:15,096 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 333 transitions, 716 flow [2022-11-20 09:27:15,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:27:15,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:27:15,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1055 transitions. [2022-11-20 09:27:15,100 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.918189730200174 [2022-11-20 09:27:15,100 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1055 transitions. [2022-11-20 09:27:15,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1055 transitions. [2022-11-20 09:27:15,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:15,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1055 transitions. [2022-11-20 09:27:15,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 351.6666666666667) internal successors, (1055), 3 states have internal predecessors, (1055), 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) [2022-11-20 09:27:15,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 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) [2022-11-20 09:27:15,108 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 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) [2022-11-20 09:27:15,109 INFO L175 Difference]: Start difference. First operand has 338 places, 339 transitions, 688 flow. Second operand 3 states and 1055 transitions. [2022-11-20 09:27:15,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 333 transitions, 716 flow [2022-11-20 09:27:15,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 333 transitions, 712 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:27:15,117 INFO L231 Difference]: Finished difference. Result has 332 places, 333 transitions, 674 flow [2022-11-20 09:27:15,117 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=672, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=674, PETRI_PLACES=332, PETRI_TRANSITIONS=333} [2022-11-20 09:27:15,120 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -18 predicate places. [2022-11-20 09:27:15,120 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 333 transitions, 674 flow [2022-11-20 09:27:15,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 344.3333333333333) internal successors, (1033), 3 states have internal predecessors, (1033), 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) [2022-11-20 09:27:15,122 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:15,122 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:15,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 09:27:15,122 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-20 09:27:15,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:15,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1945569182, now seen corresponding path program 1 times [2022-11-20 09:27:15,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:15,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170243114] [2022-11-20 09:27:15,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:15,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:15,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:15,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:15,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170243114] [2022-11-20 09:27:15,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170243114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:15,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:15,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:27:15,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500071015] [2022-11-20 09:27:15,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:15,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:27:15,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:15,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:27:15,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:27:15,235 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 383 [2022-11-20 09:27:15,237 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 333 transitions, 674 flow. Second operand has 3 states, 3 states have (on average 347.3333333333333) internal successors, (1042), 3 states have internal predecessors, (1042), 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) [2022-11-20 09:27:15,237 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:15,237 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 383 [2022-11-20 09:27:15,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:15,695 INFO L130 PetriNetUnfolder]: 226/1810 cut-off events. [2022-11-20 09:27:15,695 INFO L131 PetriNetUnfolder]: For 42/48 co-relation queries the response was YES. [2022-11-20 09:27:15,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2161 conditions, 1810 events. 226/1810 cut-off events. For 42/48 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 13499 event pairs, 135 based on Foata normal form. 0/1482 useless extension candidates. Maximal degree in co-relation 2122. Up to 325 conditions per place. [2022-11-20 09:27:15,717 INFO L137 encePairwiseOnDemand]: 380/383 looper letters, 21 selfloop transitions, 2 changer transitions 0/332 dead transitions. [2022-11-20 09:27:15,717 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 332 transitions, 718 flow [2022-11-20 09:27:15,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:27:15,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:27:15,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1062 transitions. [2022-11-20 09:27:15,720 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9242819843342036 [2022-11-20 09:27:15,721 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1062 transitions. [2022-11-20 09:27:15,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1062 transitions. [2022-11-20 09:27:15,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:15,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1062 transitions. [2022-11-20 09:27:15,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 354.0) internal successors, (1062), 3 states have internal predecessors, (1062), 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) [2022-11-20 09:27:15,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 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) [2022-11-20 09:27:15,733 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 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) [2022-11-20 09:27:15,733 INFO L175 Difference]: Start difference. First operand has 332 places, 333 transitions, 674 flow. Second operand 3 states and 1062 transitions. [2022-11-20 09:27:15,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 332 transitions, 718 flow [2022-11-20 09:27:15,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 332 transitions, 717 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:27:15,741 INFO L231 Difference]: Finished difference. Result has 332 places, 332 transitions, 675 flow [2022-11-20 09:27:15,747 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=671, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=675, PETRI_PLACES=332, PETRI_TRANSITIONS=332} [2022-11-20 09:27:15,749 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -18 predicate places. [2022-11-20 09:27:15,749 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 332 transitions, 675 flow [2022-11-20 09:27:15,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 347.3333333333333) internal successors, (1042), 3 states have internal predecessors, (1042), 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) [2022-11-20 09:27:15,750 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:15,750 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:15,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 09:27:15,751 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-20 09:27:15,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:15,752 INFO L85 PathProgramCache]: Analyzing trace with hash 89045610, now seen corresponding path program 1 times [2022-11-20 09:27:15,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:15,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496550359] [2022-11-20 09:27:15,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:15,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:16,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:16,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:16,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496550359] [2022-11-20 09:27:16,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496550359] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:16,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:16,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:27:16,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126959821] [2022-11-20 09:27:16,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:16,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:27:16,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:16,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:27:16,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:27:16,371 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 383 [2022-11-20 09:27:16,373 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 332 transitions, 675 flow. Second operand has 6 states, 6 states have (on average 265.8333333333333) internal successors, (1595), 6 states have internal predecessors, (1595), 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) [2022-11-20 09:27:16,374 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:16,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 383 [2022-11-20 09:27:16,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:33,778 INFO L130 PetriNetUnfolder]: 46936/99170 cut-off events. [2022-11-20 09:27:33,778 INFO L131 PetriNetUnfolder]: For 337/557 co-relation queries the response was YES. [2022-11-20 09:27:34,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163162 conditions, 99170 events. 46936/99170 cut-off events. For 337/557 co-relation queries the response was YES. Maximal size of possible extension queue 2929. Compared 1141274 event pairs, 42984 based on Foata normal form. 0/80984 useless extension candidates. Maximal degree in co-relation 163124. Up to 63794 conditions per place. [2022-11-20 09:27:34,662 INFO L137 encePairwiseOnDemand]: 371/383 looper letters, 93 selfloop transitions, 10 changer transitions 0/330 dead transitions. [2022-11-20 09:27:34,662 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 330 transitions, 877 flow [2022-11-20 09:27:34,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:27:34,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:27:34,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1689 transitions. [2022-11-20 09:27:34,667 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7349869451697127 [2022-11-20 09:27:34,668 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1689 transitions. [2022-11-20 09:27:34,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1689 transitions. [2022-11-20 09:27:34,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:34,669 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1689 transitions. [2022-11-20 09:27:34,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 281.5) internal successors, (1689), 6 states have internal predecessors, (1689), 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) [2022-11-20 09:27:34,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 383.0) internal successors, (2681), 7 states have internal predecessors, (2681), 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) [2022-11-20 09:27:34,682 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 383.0) internal successors, (2681), 7 states have internal predecessors, (2681), 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) [2022-11-20 09:27:34,682 INFO L175 Difference]: Start difference. First operand has 332 places, 332 transitions, 675 flow. Second operand 6 states and 1689 transitions. [2022-11-20 09:27:34,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 330 transitions, 877 flow [2022-11-20 09:27:34,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 330 transitions, 873 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:27:34,692 INFO L231 Difference]: Finished difference. Result has 333 places, 330 transitions, 687 flow [2022-11-20 09:27:34,692 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=687, PETRI_PLACES=333, PETRI_TRANSITIONS=330} [2022-11-20 09:27:34,696 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -17 predicate places. [2022-11-20 09:27:34,696 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 330 transitions, 687 flow [2022-11-20 09:27:34,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 265.8333333333333) internal successors, (1595), 6 states have internal predecessors, (1595), 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) [2022-11-20 09:27:34,699 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:34,699 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:34,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 09:27:34,700 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-20 09:27:34,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:34,702 INFO L85 PathProgramCache]: Analyzing trace with hash -188757247, now seen corresponding path program 1 times [2022-11-20 09:27:34,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:34,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878857948] [2022-11-20 09:27:34,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:34,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:34,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:34,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:34,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:34,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878857948] [2022-11-20 09:27:34,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878857948] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:34,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:34,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:27:34,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333778530] [2022-11-20 09:27:34,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:34,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:27:34,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:34,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:27:34,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:27:34,812 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 383 [2022-11-20 09:27:34,813 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 330 transitions, 687 flow. Second operand has 3 states, 3 states have (on average 347.3333333333333) internal successors, (1042), 3 states have internal predecessors, (1042), 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) [2022-11-20 09:27:34,814 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:34,814 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 383 [2022-11-20 09:27:34,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:35,224 INFO L130 PetriNetUnfolder]: 226/1694 cut-off events. [2022-11-20 09:27:35,224 INFO L131 PetriNetUnfolder]: For 42/49 co-relation queries the response was YES. [2022-11-20 09:27:35,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2061 conditions, 1694 events. 226/1694 cut-off events. For 42/49 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 12474 event pairs, 135 based on Foata normal form. 0/1387 useless extension candidates. Maximal degree in co-relation 2028. Up to 331 conditions per place. [2022-11-20 09:27:35,243 INFO L137 encePairwiseOnDemand]: 380/383 looper letters, 21 selfloop transitions, 2 changer transitions 0/329 dead transitions. [2022-11-20 09:27:35,243 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 329 transitions, 731 flow [2022-11-20 09:27:35,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:27:35,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:27:35,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1062 transitions. [2022-11-20 09:27:35,247 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9242819843342036 [2022-11-20 09:27:35,247 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1062 transitions. [2022-11-20 09:27:35,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1062 transitions. [2022-11-20 09:27:35,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:35,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1062 transitions. [2022-11-20 09:27:35,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 354.0) internal successors, (1062), 3 states have internal predecessors, (1062), 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) [2022-11-20 09:27:35,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 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) [2022-11-20 09:27:35,254 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 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) [2022-11-20 09:27:35,254 INFO L175 Difference]: Start difference. First operand has 333 places, 330 transitions, 687 flow. Second operand 3 states and 1062 transitions. [2022-11-20 09:27:35,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 329 transitions, 731 flow [2022-11-20 09:27:35,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 329 transitions, 711 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 09:27:35,261 INFO L231 Difference]: Finished difference. Result has 329 places, 329 transitions, 669 flow [2022-11-20 09:27:35,262 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=665, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=669, PETRI_PLACES=329, PETRI_TRANSITIONS=329} [2022-11-20 09:27:35,264 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -21 predicate places. [2022-11-20 09:27:35,265 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 329 transitions, 669 flow [2022-11-20 09:27:35,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 347.3333333333333) internal successors, (1042), 3 states have internal predecessors, (1042), 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) [2022-11-20 09:27:35,266 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:35,266 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:35,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 09:27:35,266 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-20 09:27:35,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:35,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1424858210, now seen corresponding path program 1 times [2022-11-20 09:27:35,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:35,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196311123] [2022-11-20 09:27:35,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:35,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:35,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:35,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:35,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:35,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196311123] [2022-11-20 09:27:35,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196311123] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:35,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:35,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:27:35,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932722992] [2022-11-20 09:27:35,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:35,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:27:35,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:35,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:27:35,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:27:35,340 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 383 [2022-11-20 09:27:35,341 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 329 transitions, 669 flow. Second operand has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 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) [2022-11-20 09:27:35,341 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:35,341 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 383 [2022-11-20 09:27:35,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:35,452 INFO L130 PetriNetUnfolder]: 39/625 cut-off events. [2022-11-20 09:27:35,452 INFO L131 PetriNetUnfolder]: For 13/19 co-relation queries the response was YES. [2022-11-20 09:27:35,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 694 conditions, 625 events. 39/625 cut-off events. For 13/19 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2339 event pairs, 20 based on Foata normal form. 0/544 useless extension candidates. Maximal degree in co-relation 654. Up to 56 conditions per place. [2022-11-20 09:27:35,458 INFO L137 encePairwiseOnDemand]: 378/383 looper letters, 15 selfloop transitions, 1 changer transitions 0/325 dead transitions. [2022-11-20 09:27:35,458 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 325 transitions, 693 flow [2022-11-20 09:27:35,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:27:35,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:27:35,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1067 transitions. [2022-11-20 09:27:35,462 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9286335944299391 [2022-11-20 09:27:35,462 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1067 transitions. [2022-11-20 09:27:35,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1067 transitions. [2022-11-20 09:27:35,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:35,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1067 transitions. [2022-11-20 09:27:35,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 355.6666666666667) internal successors, (1067), 3 states have internal predecessors, (1067), 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) [2022-11-20 09:27:35,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 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) [2022-11-20 09:27:35,468 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 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) [2022-11-20 09:27:35,469 INFO L175 Difference]: Start difference. First operand has 329 places, 329 transitions, 669 flow. Second operand 3 states and 1067 transitions. [2022-11-20 09:27:35,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 325 transitions, 693 flow [2022-11-20 09:27:35,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 325 transitions, 689 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:27:35,475 INFO L231 Difference]: Finished difference. Result has 325 places, 325 transitions, 659 flow [2022-11-20 09:27:35,476 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=657, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=659, PETRI_PLACES=325, PETRI_TRANSITIONS=325} [2022-11-20 09:27:35,477 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -25 predicate places. [2022-11-20 09:27:35,477 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 325 transitions, 659 flow [2022-11-20 09:27:35,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 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) [2022-11-20 09:27:35,478 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:35,478 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:35,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 09:27:35,478 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-20 09:27:35,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:35,479 INFO L85 PathProgramCache]: Analyzing trace with hash -835366874, now seen corresponding path program 1 times [2022-11-20 09:27:35,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:35,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137477926] [2022-11-20 09:27:35,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:35,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:35,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:35,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:35,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:35,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137477926] [2022-11-20 09:27:35,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137477926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:35,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:35,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:27:35,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273776321] [2022-11-20 09:27:35,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:35,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:27:35,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:35,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:27:35,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:27:35,553 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 383 [2022-11-20 09:27:35,554 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 325 transitions, 659 flow. Second operand has 3 states, 3 states have (on average 350.6666666666667) internal successors, (1052), 3 states have internal predecessors, (1052), 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) [2022-11-20 09:27:35,555 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:35,555 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 383 [2022-11-20 09:27:35,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:35,937 INFO L130 PetriNetUnfolder]: 118/1263 cut-off events. [2022-11-20 09:27:35,937 INFO L131 PetriNetUnfolder]: For 28/33 co-relation queries the response was YES. [2022-11-20 09:27:35,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1453 conditions, 1263 events. 118/1263 cut-off events. For 28/33 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 7925 event pairs, 22 based on Foata normal form. 1/1106 useless extension candidates. Maximal degree in co-relation 1415. Up to 164 conditions per place. [2022-11-20 09:27:35,949 INFO L137 encePairwiseOnDemand]: 375/383 looper letters, 21 selfloop transitions, 4 changer transitions 0/330 dead transitions. [2022-11-20 09:27:35,949 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 330 transitions, 724 flow [2022-11-20 09:27:35,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:27:35,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:27:35,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1076 transitions. [2022-11-20 09:27:35,952 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9364664926022629 [2022-11-20 09:27:35,952 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1076 transitions. [2022-11-20 09:27:35,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1076 transitions. [2022-11-20 09:27:35,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:35,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1076 transitions. [2022-11-20 09:27:35,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 358.6666666666667) internal successors, (1076), 3 states have internal predecessors, (1076), 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) [2022-11-20 09:27:35,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 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) [2022-11-20 09:27:35,961 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 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) [2022-11-20 09:27:35,962 INFO L175 Difference]: Start difference. First operand has 325 places, 325 transitions, 659 flow. Second operand 3 states and 1076 transitions. [2022-11-20 09:27:35,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 330 transitions, 724 flow [2022-11-20 09:27:35,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 330 transitions, 723 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:27:35,968 INFO L231 Difference]: Finished difference. Result has 323 places, 325 transitions, 678 flow [2022-11-20 09:27:35,969 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=678, PETRI_PLACES=323, PETRI_TRANSITIONS=325} [2022-11-20 09:27:35,971 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -27 predicate places. [2022-11-20 09:27:35,971 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 325 transitions, 678 flow [2022-11-20 09:27:35,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.6666666666667) internal successors, (1052), 3 states have internal predecessors, (1052), 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) [2022-11-20 09:27:35,972 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:35,972 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:35,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 09:27:35,973 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-20 09:27:35,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:35,973 INFO L85 PathProgramCache]: Analyzing trace with hash 371346824, now seen corresponding path program 1 times [2022-11-20 09:27:35,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:35,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585403478] [2022-11-20 09:27:35,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:35,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:36,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:36,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:36,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585403478] [2022-11-20 09:27:36,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585403478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:36,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:36,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:27:36,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342885160] [2022-11-20 09:27:36,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:36,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:27:36,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:36,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:27:36,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:27:36,041 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 383 [2022-11-20 09:27:36,042 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 325 transitions, 678 flow. Second operand has 3 states, 3 states have (on average 350.6666666666667) internal successors, (1052), 3 states have internal predecessors, (1052), 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) [2022-11-20 09:27:36,043 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:36,043 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 383 [2022-11-20 09:27:36,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:36,332 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([927] L64-->L64-1: Formula: (= |v_#race~B~0_7| 0) InVars {} OutVars{#race~B~0=|v_#race~B~0_7|} AuxVars[] AssignedVars[#race~B~0][218], [30#L64-1true, 406#(= |#race~M~0| 0), 282#L56-1true, 387#(= |#race~N~0| 0), 415#(= |#race~A~0| 0), Black: 408#true, 215#L48-3true, 264#L84-4true, 410#(= |#race~B~0| 0)]) [2022-11-20 09:27:36,332 INFO L383 tUnfolder$Statistics]: this new event has 195 ancestors and is cut-off event [2022-11-20 09:27:36,332 INFO L386 tUnfolder$Statistics]: existing Event has 195 ancestors and is cut-off event [2022-11-20 09:27:36,333 INFO L386 tUnfolder$Statistics]: existing Event has 170 ancestors and is cut-off event [2022-11-20 09:27:36,333 INFO L386 tUnfolder$Statistics]: existing Event has 170 ancestors and is cut-off event [2022-11-20 09:27:36,335 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([927] L64-->L64-1: Formula: (= |v_#race~B~0_7| 0) InVars {} OutVars{#race~B~0=|v_#race~B~0_7|} AuxVars[] AssignedVars[#race~B~0][218], [406#(= |#race~M~0| 0), 30#L64-1true, 20#L48-4true, 282#L56-1true, 387#(= |#race~N~0| 0), 415#(= |#race~A~0| 0), Black: 408#true, 264#L84-4true, 410#(= |#race~B~0| 0)]) [2022-11-20 09:27:36,335 INFO L383 tUnfolder$Statistics]: this new event has 196 ancestors and is cut-off event [2022-11-20 09:27:36,335 INFO L386 tUnfolder$Statistics]: existing Event has 171 ancestors and is cut-off event [2022-11-20 09:27:36,335 INFO L386 tUnfolder$Statistics]: existing Event has 171 ancestors and is cut-off event [2022-11-20 09:27:36,336 INFO L386 tUnfolder$Statistics]: existing Event has 196 ancestors and is cut-off event [2022-11-20 09:27:36,344 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([927] L64-->L64-1: Formula: (= |v_#race~B~0_7| 0) InVars {} OutVars{#race~B~0=|v_#race~B~0_7|} AuxVars[] AssignedVars[#race~B~0][218], [406#(= |#race~M~0| 0), 30#L64-1true, 282#L56-1true, 387#(= |#race~N~0| 0), 415#(= |#race~A~0| 0), Black: 408#true, 410#(= |#race~B~0| 0), 232#L85-7true]) [2022-11-20 09:27:36,344 INFO L383 tUnfolder$Statistics]: this new event has 203 ancestors and is cut-off event [2022-11-20 09:27:36,345 INFO L386 tUnfolder$Statistics]: existing Event has 203 ancestors and is cut-off event [2022-11-20 09:27:36,345 INFO L386 tUnfolder$Statistics]: existing Event has 178 ancestors and is cut-off event [2022-11-20 09:27:36,345 INFO L386 tUnfolder$Statistics]: existing Event has 178 ancestors and is cut-off event [2022-11-20 09:27:36,354 INFO L130 PetriNetUnfolder]: 190/1670 cut-off events. [2022-11-20 09:27:36,354 INFO L131 PetriNetUnfolder]: For 35/40 co-relation queries the response was YES. [2022-11-20 09:27:36,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1998 conditions, 1670 events. 190/1670 cut-off events. For 35/40 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 11600 event pairs, 45 based on Foata normal form. 0/1479 useless extension candidates. Maximal degree in co-relation 1960. Up to 207 conditions per place. [2022-11-20 09:27:36,373 INFO L137 encePairwiseOnDemand]: 375/383 looper letters, 21 selfloop transitions, 4 changer transitions 0/330 dead transitions. [2022-11-20 09:27:36,373 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 330 transitions, 743 flow [2022-11-20 09:27:36,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:27:36,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:27:36,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1076 transitions. [2022-11-20 09:27:36,376 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9364664926022629 [2022-11-20 09:27:36,377 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1076 transitions. [2022-11-20 09:27:36,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1076 transitions. [2022-11-20 09:27:36,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:36,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1076 transitions. [2022-11-20 09:27:36,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 358.6666666666667) internal successors, (1076), 3 states have internal predecessors, (1076), 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) [2022-11-20 09:27:36,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 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) [2022-11-20 09:27:36,384 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 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) [2022-11-20 09:27:36,385 INFO L175 Difference]: Start difference. First operand has 323 places, 325 transitions, 678 flow. Second operand 3 states and 1076 transitions. [2022-11-20 09:27:36,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 330 transitions, 743 flow [2022-11-20 09:27:36,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 330 transitions, 743 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 09:27:36,393 INFO L231 Difference]: Finished difference. Result has 322 places, 325 transitions, 698 flow [2022-11-20 09:27:36,394 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=698, PETRI_PLACES=322, PETRI_TRANSITIONS=325} [2022-11-20 09:27:36,395 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -28 predicate places. [2022-11-20 09:27:36,395 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 325 transitions, 698 flow [2022-11-20 09:27:36,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.6666666666667) internal successors, (1052), 3 states have internal predecessors, (1052), 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) [2022-11-20 09:27:36,396 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:36,396 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:36,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 09:27:36,397 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-20 09:27:36,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:36,397 INFO L85 PathProgramCache]: Analyzing trace with hash -265555636, now seen corresponding path program 1 times [2022-11-20 09:27:36,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:36,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459695057] [2022-11-20 09:27:36,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:36,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:36,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:36,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:36,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459695057] [2022-11-20 09:27:36,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459695057] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:36,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:36,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 09:27:36,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515783883] [2022-11-20 09:27:36,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:36,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 09:27:36,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:36,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 09:27:36,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:27:36,662 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 383 [2022-11-20 09:27:36,664 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 325 transitions, 698 flow. Second operand has 7 states, 7 states have (on average 306.85714285714283) internal successors, (2148), 7 states have internal predecessors, (2148), 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) [2022-11-20 09:27:36,664 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:36,665 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 383 [2022-11-20 09:27:36,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:37,609 INFO L130 PetriNetUnfolder]: 569/2993 cut-off events. [2022-11-20 09:27:37,610 INFO L131 PetriNetUnfolder]: For 73/158 co-relation queries the response was YES. [2022-11-20 09:27:37,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4339 conditions, 2993 events. 569/2993 cut-off events. For 73/158 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 23020 event pairs, 261 based on Foata normal form. 0/2515 useless extension candidates. Maximal degree in co-relation 4298. Up to 737 conditions per place. [2022-11-20 09:27:37,649 INFO L137 encePairwiseOnDemand]: 369/383 looper letters, 126 selfloop transitions, 18 changer transitions 0/404 dead transitions. [2022-11-20 09:27:37,649 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 404 transitions, 1160 flow [2022-11-20 09:27:37,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 09:27:37,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 09:27:37,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3479 transitions. [2022-11-20 09:27:37,657 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8257773558034655 [2022-11-20 09:27:37,657 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3479 transitions. [2022-11-20 09:27:37,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3479 transitions. [2022-11-20 09:27:37,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:37,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3479 transitions. [2022-11-20 09:27:37,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 316.27272727272725) internal successors, (3479), 11 states have internal predecessors, (3479), 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) [2022-11-20 09:27:37,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 383.0) internal successors, (4596), 12 states have internal predecessors, (4596), 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) [2022-11-20 09:27:37,692 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 383.0) internal successors, (4596), 12 states have internal predecessors, (4596), 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) [2022-11-20 09:27:37,693 INFO L175 Difference]: Start difference. First operand has 322 places, 325 transitions, 698 flow. Second operand 11 states and 3479 transitions. [2022-11-20 09:27:37,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 404 transitions, 1160 flow [2022-11-20 09:27:37,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 404 transitions, 1160 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 09:27:37,702 INFO L231 Difference]: Finished difference. Result has 336 places, 335 transitions, 784 flow [2022-11-20 09:27:37,703 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=698, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=784, PETRI_PLACES=336, PETRI_TRANSITIONS=335} [2022-11-20 09:27:37,704 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -14 predicate places. [2022-11-20 09:27:37,705 INFO L495 AbstractCegarLoop]: Abstraction has has 336 places, 335 transitions, 784 flow [2022-11-20 09:27:37,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 306.85714285714283) internal successors, (2148), 7 states have internal predecessors, (2148), 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) [2022-11-20 09:27:37,706 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:37,706 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:37,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 09:27:37,707 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-20 09:27:37,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:37,707 INFO L85 PathProgramCache]: Analyzing trace with hash 308665052, now seen corresponding path program 1 times [2022-11-20 09:27:37,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:37,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943752284] [2022-11-20 09:27:37,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:37,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:37,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:37,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:37,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943752284] [2022-11-20 09:27:37,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943752284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:37,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:37,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:27:37,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622205270] [2022-11-20 09:27:37,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:37,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:27:37,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:37,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:27:37,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:27:37,909 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 383 [2022-11-20 09:27:37,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 335 transitions, 784 flow. Second operand has 5 states, 5 states have (on average 338.4) internal successors, (1692), 5 states have internal predecessors, (1692), 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) [2022-11-20 09:27:37,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:37,911 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 383 [2022-11-20 09:27:37,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:38,936 INFO L130 PetriNetUnfolder]: 618/4184 cut-off events. [2022-11-20 09:27:38,936 INFO L131 PetriNetUnfolder]: For 301/366 co-relation queries the response was YES. [2022-11-20 09:27:38,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5691 conditions, 4184 events. 618/4184 cut-off events. For 301/366 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 39021 event pairs, 360 based on Foata normal form. 7/3760 useless extension candidates. Maximal degree in co-relation 5642. Up to 792 conditions per place. [2022-11-20 09:27:38,984 INFO L137 encePairwiseOnDemand]: 378/383 looper letters, 45 selfloop transitions, 4 changer transitions 0/349 dead transitions. [2022-11-20 09:27:38,984 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 349 transitions, 918 flow [2022-11-20 09:27:38,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:27:38,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 09:27:38,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1725 transitions. [2022-11-20 09:27:38,990 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9007832898172323 [2022-11-20 09:27:38,990 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1725 transitions. [2022-11-20 09:27:38,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1725 transitions. [2022-11-20 09:27:38,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:38,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1725 transitions. [2022-11-20 09:27:38,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 345.0) internal successors, (1725), 5 states have internal predecessors, (1725), 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) [2022-11-20 09:27:39,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 383.0) internal successors, (2298), 6 states have internal predecessors, (2298), 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) [2022-11-20 09:27:39,002 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 383.0) internal successors, (2298), 6 states have internal predecessors, (2298), 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) [2022-11-20 09:27:39,002 INFO L175 Difference]: Start difference. First operand has 336 places, 335 transitions, 784 flow. Second operand 5 states and 1725 transitions. [2022-11-20 09:27:39,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 349 transitions, 918 flow [2022-11-20 09:27:39,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 349 transitions, 913 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:27:39,013 INFO L231 Difference]: Finished difference. Result has 340 places, 336 transitions, 796 flow [2022-11-20 09:27:39,014 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=779, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=796, PETRI_PLACES=340, PETRI_TRANSITIONS=336} [2022-11-20 09:27:39,015 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -10 predicate places. [2022-11-20 09:27:39,015 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 336 transitions, 796 flow [2022-11-20 09:27:39,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 338.4) internal successors, (1692), 5 states have internal predecessors, (1692), 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) [2022-11-20 09:27:39,016 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:39,016 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:39,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 09:27:39,016 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-20 09:27:39,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:39,017 INFO L85 PathProgramCache]: Analyzing trace with hash -2096028094, now seen corresponding path program 1 times [2022-11-20 09:27:39,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:39,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302313242] [2022-11-20 09:27:39,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:39,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:39,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:39,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:39,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302313242] [2022-11-20 09:27:39,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302313242] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:39,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:39,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:27:39,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846385338] [2022-11-20 09:27:39,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:39,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:27:39,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:39,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:27:39,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:27:39,671 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 383 [2022-11-20 09:27:39,673 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 336 transitions, 796 flow. Second operand has 6 states, 6 states have (on average 282.0) internal successors, (1692), 6 states have internal predecessors, (1692), 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) [2022-11-20 09:27:39,673 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:39,673 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 383 [2022-11-20 09:27:39,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand