./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a93db5f-05f9-45be-87a5-6d3add20dbf0/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a93db5f-05f9-45be-87a5-6d3add20dbf0/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a93db5f-05f9-45be-87a5-6d3add20dbf0/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a93db5f-05f9-45be-87a5-6d3add20dbf0/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a93db5f-05f9-45be-87a5-6d3add20dbf0/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a93db5f-05f9-45be-87a5-6d3add20dbf0/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 761ee9f18ea63f4f821d50962d6c2d771ad2410f7c5dd57f48ec51463a1d5307 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 21:10:36,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:10:36,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:10:36,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:10:36,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:10:36,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:10:36,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:10:36,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:10:36,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:10:36,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:10:36,070 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:10:36,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:10:36,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:10:36,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:10:36,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:10:36,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:10:36,084 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:10:36,085 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:10:36,087 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:10:36,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:10:36,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:10:36,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:10:36,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:10:36,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:10:36,104 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:10:36,104 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:10:36,105 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:10:36,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:10:36,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:10:36,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:10:36,108 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:10:36,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:10:36,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:10:36,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:10:36,115 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:10:36,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:10:36,116 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:10:36,116 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:10:36,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:10:36,117 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:10:36,118 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:10:36,119 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a93db5f-05f9-45be-87a5-6d3add20dbf0/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 21:10:36,146 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:10:36,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:10:36,148 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:10:36,149 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:10:36,150 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:10:36,150 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:10:36,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:10:36,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:10:36,151 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:10:36,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:10:36,153 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 21:10:36,153 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 21:10:36,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:10:36,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 21:10:36,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:10:36,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:10:36,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:10:36,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:10:36,155 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 21:10:36,155 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 21:10:36,155 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:10:36,155 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:10:36,156 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:10:36,156 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:10:36,156 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:10:36,156 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:10:36,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:10:36,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:10:36,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:10:36,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:10:36,160 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:10:36,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 21:10:36,160 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:10:36,160 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:10:36,161 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:10:36,161 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_8a93db5f-05f9-45be-87a5-6d3add20dbf0/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a93db5f-05f9-45be-87a5-6d3add20dbf0/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 761ee9f18ea63f4f821d50962d6c2d771ad2410f7c5dd57f48ec51463a1d5307 [2022-11-18 21:10:36,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:10:36,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:10:36,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:10:36,462 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:10:36,463 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:10:36,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a93db5f-05f9-45be-87a5-6d3add20dbf0/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c [2022-11-18 21:10:36,544 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a93db5f-05f9-45be-87a5-6d3add20dbf0/bin/uautomizer-TMbwUNV5ro/data/0e4f2b948/f743ee171ebf4aec9166d605f3988dcf/FLAGa8e7bd155 [2022-11-18 21:10:36,984 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:10:36,985 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a93db5f-05f9-45be-87a5-6d3add20dbf0/sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c [2022-11-18 21:10:36,991 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a93db5f-05f9-45be-87a5-6d3add20dbf0/bin/uautomizer-TMbwUNV5ro/data/0e4f2b948/f743ee171ebf4aec9166d605f3988dcf/FLAGa8e7bd155 [2022-11-18 21:10:37,371 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a93db5f-05f9-45be-87a5-6d3add20dbf0/bin/uautomizer-TMbwUNV5ro/data/0e4f2b948/f743ee171ebf4aec9166d605f3988dcf [2022-11-18 21:10:37,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:10:37,374 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:10:37,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:10:37,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:10:37,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:10:37,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:10:37" (1/1) ... [2022-11-18 21:10:37,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@675fd63e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:37, skipping insertion in model container [2022-11-18 21:10:37,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:10:37" (1/1) ... [2022-11-18 21:10:37,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:10:37,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:10:37,674 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a93db5f-05f9-45be-87a5-6d3add20dbf0/sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c[2575,2588] [2022-11-18 21:10:37,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:10:37,694 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:10:37,745 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a93db5f-05f9-45be-87a5-6d3add20dbf0/sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c[2575,2588] [2022-11-18 21:10:37,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:10:37,775 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:10:37,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:37 WrapperNode [2022-11-18 21:10:37,776 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:10:37,777 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:10:37,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:10:37,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:10:37,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:37" (1/1) ... [2022-11-18 21:10:37,806 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:37" (1/1) ... [2022-11-18 21:10:37,846 INFO L138 Inliner]: procedures = 23, calls = 31, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 262 [2022-11-18 21:10:37,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:10:37,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:10:37,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:10:37,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:10:37,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:37" (1/1) ... [2022-11-18 21:10:37,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:37" (1/1) ... [2022-11-18 21:10:37,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:37" (1/1) ... [2022-11-18 21:10:37,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:37" (1/1) ... [2022-11-18 21:10:37,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:37" (1/1) ... [2022-11-18 21:10:37,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:37" (1/1) ... [2022-11-18 21:10:37,877 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:37" (1/1) ... [2022-11-18 21:10:37,879 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:37" (1/1) ... [2022-11-18 21:10:37,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:10:37,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:10:37,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:10:37,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:10:37,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:37" (1/1) ... [2022-11-18 21:10:37,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:10:37,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a93db5f-05f9-45be-87a5-6d3add20dbf0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:10:37,931 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a93db5f-05f9-45be-87a5-6d3add20dbf0/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:10:37,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a93db5f-05f9-45be-87a5-6d3add20dbf0/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:10:37,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 21:10:37,973 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 21:10:37,973 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 21:10:37,973 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 21:10:37,973 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 21:10:37,973 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 21:10:37,973 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 21:10:37,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 21:10:37,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 21:10:37,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 21:10:37,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:10:37,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:10:37,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 21:10:37,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 21:10:37,976 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 21:10:38,104 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:10:38,107 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:10:38,705 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:10:38,718 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:10:38,718 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 21:10:38,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:10:38 BoogieIcfgContainer [2022-11-18 21:10:38,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:10:38,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:10:38,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:10:38,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:10:38,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:10:37" (1/3) ... [2022-11-18 21:10:38,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b34092b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:10:38, skipping insertion in model container [2022-11-18 21:10:38,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:37" (2/3) ... [2022-11-18 21:10:38,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b34092b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:10:38, skipping insertion in model container [2022-11-18 21:10:38,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:10:38" (3/3) ... [2022-11-18 21:10:38,732 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-subst.wvr.c [2022-11-18 21:10:38,746 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 21:10:38,759 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:10:38,762 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-11-18 21:10:38,762 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 21:10:38,916 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 21:10:38,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 342 places, 347 transitions, 718 flow [2022-11-18 21:10:39,121 INFO L130 PetriNetUnfolder]: 15/344 cut-off events. [2022-11-18 21:10:39,121 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 21:10:39,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 344 events. 15/344 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 788 event pairs, 0 based on Foata normal form. 0/297 useless extension candidates. Maximal degree in co-relation 211. Up to 2 conditions per place. [2022-11-18 21:10:39,136 INFO L82 GeneralOperation]: Start removeDead. Operand has 342 places, 347 transitions, 718 flow [2022-11-18 21:10:39,145 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 318 places, 321 transitions, 660 flow [2022-11-18 21:10:39,156 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:10:39,167 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;@74f58e70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:10:39,171 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2022-11-18 21:10:39,178 INFO L130 PetriNetUnfolder]: 0/28 cut-off events. [2022-11-18 21:10:39,182 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 21:10:39,183 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:10:39,183 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] [2022-11-18 21:10:39,184 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 21:10:39,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:39,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1798915817, now seen corresponding path program 1 times [2022-11-18 21:10:39,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:39,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814813794] [2022-11-18 21:10:39,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:39,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:39,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:39,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:39,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814813794] [2022-11-18 21:10:39,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814813794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:39,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:39,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:10:39,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278919973] [2022-11-18 21:10:39,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:39,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:10:39,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:39,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:10:39,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:10:39,563 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 320 out of 347 [2022-11-18 21:10:39,568 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 321 transitions, 660 flow. Second operand has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:39,568 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:10:39,568 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 320 of 347 [2022-11-18 21:10:39,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:10:39,837 INFO L130 PetriNetUnfolder]: 65/932 cut-off events. [2022-11-18 21:10:39,838 INFO L131 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2022-11-18 21:10:39,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1071 conditions, 932 events. 65/932 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 5790 event pairs, 39 based on Foata normal form. 33/795 useless extension candidates. Maximal degree in co-relation 864. Up to 85 conditions per place. [2022-11-18 21:10:39,855 INFO L137 encePairwiseOnDemand]: 337/347 looper letters, 15 selfloop transitions, 2 changer transitions 1/313 dead transitions. [2022-11-18 21:10:39,855 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 313 transitions, 678 flow [2022-11-18 21:10:39,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:10:39,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:10:39,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 985 transitions. [2022-11-18 21:10:39,881 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9462055715658021 [2022-11-18 21:10:39,882 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 985 transitions. [2022-11-18 21:10:39,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 985 transitions. [2022-11-18 21:10:39,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:10:39,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 985 transitions. [2022-11-18 21:10:39,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:39,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:39,912 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:39,914 INFO L175 Difference]: Start difference. First operand has 318 places, 321 transitions, 660 flow. Second operand 3 states and 985 transitions. [2022-11-18 21:10:39,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 313 transitions, 678 flow [2022-11-18 21:10:39,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 313 transitions, 666 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 21:10:39,929 INFO L231 Difference]: Finished difference. Result has 313 places, 312 transitions, 634 flow [2022-11-18 21:10:39,932 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=632, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=634, PETRI_PLACES=313, PETRI_TRANSITIONS=312} [2022-11-18 21:10:39,937 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -5 predicate places. [2022-11-18 21:10:39,937 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 312 transitions, 634 flow [2022-11-18 21:10:39,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:39,938 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:10:39,939 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] [2022-11-18 21:10:39,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 21:10:39,939 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 21:10:39,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:39,942 INFO L85 PathProgramCache]: Analyzing trace with hash -985175869, now seen corresponding path program 1 times [2022-11-18 21:10:39,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:39,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180430587] [2022-11-18 21:10:39,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:39,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:39,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:40,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:40,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:40,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180430587] [2022-11-18 21:10:40,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180430587] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:40,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:40,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:10:40,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707643471] [2022-11-18 21:10:40,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:40,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:10:40,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:40,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:10:40,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:10:40,108 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 320 out of 347 [2022-11-18 21:10:40,109 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 312 transitions, 634 flow. Second operand has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:40,109 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:10:40,110 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 320 of 347 [2022-11-18 21:10:40,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:10:40,420 INFO L130 PetriNetUnfolder]: 62/1188 cut-off events. [2022-11-18 21:10:40,421 INFO L131 PetriNetUnfolder]: For 11/14 co-relation queries the response was YES. [2022-11-18 21:10:40,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1305 conditions, 1188 events. 62/1188 cut-off events. For 11/14 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 8234 event pairs, 39 based on Foata normal form. 0/1018 useless extension candidates. Maximal degree in co-relation 1268. Up to 90 conditions per place. [2022-11-18 21:10:40,436 INFO L137 encePairwiseOnDemand]: 344/347 looper letters, 15 selfloop transitions, 2 changer transitions 0/311 dead transitions. [2022-11-18 21:10:40,436 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 311 transitions, 666 flow [2022-11-18 21:10:40,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:10:40,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:10:40,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 978 transitions. [2022-11-18 21:10:40,440 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9394812680115274 [2022-11-18 21:10:40,440 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 978 transitions. [2022-11-18 21:10:40,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 978 transitions. [2022-11-18 21:10:40,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:10:40,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 978 transitions. [2022-11-18 21:10:40,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.0) internal successors, (978), 3 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:40,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:40,448 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:40,449 INFO L175 Difference]: Start difference. First operand has 313 places, 312 transitions, 634 flow. Second operand 3 states and 978 transitions. [2022-11-18 21:10:40,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 311 transitions, 666 flow [2022-11-18 21:10:40,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 311 transitions, 662 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:10:40,461 INFO L231 Difference]: Finished difference. Result has 311 places, 311 transitions, 632 flow [2022-11-18 21:10:40,462 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=632, PETRI_PLACES=311, PETRI_TRANSITIONS=311} [2022-11-18 21:10:40,463 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -7 predicate places. [2022-11-18 21:10:40,463 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 311 transitions, 632 flow [2022-11-18 21:10:40,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:40,464 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:10:40,464 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:10:40,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 21:10:40,466 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 21:10:40,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:40,468 INFO L85 PathProgramCache]: Analyzing trace with hash 668762819, now seen corresponding path program 1 times [2022-11-18 21:10:40,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:40,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056058517] [2022-11-18 21:10:40,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:40,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:40,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:40,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:40,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056058517] [2022-11-18 21:10:40,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056058517] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:40,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:40,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:10:40,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455191715] [2022-11-18 21:10:40,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:40,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:10:40,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:40,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:10:40,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:10:40,604 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 347 [2022-11-18 21:10:40,606 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 311 transitions, 632 flow. Second operand has 3 states, 3 states have (on average 318.3333333333333) internal successors, (955), 3 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:40,606 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:10:40,606 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 347 [2022-11-18 21:10:40,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:10:40,881 INFO L130 PetriNetUnfolder]: 62/916 cut-off events. [2022-11-18 21:10:40,881 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-18 21:10:40,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1028 conditions, 916 events. 62/916 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 5360 event pairs, 36 based on Foata normal form. 0/756 useless extension candidates. Maximal degree in co-relation 984. Up to 91 conditions per place. [2022-11-18 21:10:40,894 INFO L137 encePairwiseOnDemand]: 344/347 looper letters, 18 selfloop transitions, 2 changer transitions 0/310 dead transitions. [2022-11-18 21:10:40,895 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 310 transitions, 670 flow [2022-11-18 21:10:40,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:10:40,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:10:40,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 972 transitions. [2022-11-18 21:10:40,899 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9337175792507204 [2022-11-18 21:10:40,901 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 972 transitions. [2022-11-18 21:10:40,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 972 transitions. [2022-11-18 21:10:40,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:10:40,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 972 transitions. [2022-11-18 21:10:40,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 324.0) internal successors, (972), 3 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:40,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:40,907 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:40,907 INFO L175 Difference]: Start difference. First operand has 311 places, 311 transitions, 632 flow. Second operand 3 states and 972 transitions. [2022-11-18 21:10:40,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 310 transitions, 670 flow [2022-11-18 21:10:40,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 310 transitions, 666 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:10:40,913 INFO L231 Difference]: Finished difference. Result has 310 places, 310 transitions, 630 flow [2022-11-18 21:10:40,914 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=626, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=630, PETRI_PLACES=310, PETRI_TRANSITIONS=310} [2022-11-18 21:10:40,916 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -8 predicate places. [2022-11-18 21:10:40,917 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 310 transitions, 630 flow [2022-11-18 21:10:40,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 318.3333333333333) internal successors, (955), 3 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:40,917 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:10:40,918 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] [2022-11-18 21:10:40,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 21:10:40,918 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 21:10:40,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:40,919 INFO L85 PathProgramCache]: Analyzing trace with hash 251499056, now seen corresponding path program 1 times [2022-11-18 21:10:40,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:40,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205396005] [2022-11-18 21:10:40,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:40,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:40,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:41,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:41,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:41,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205396005] [2022-11-18 21:10:41,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205396005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:41,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:41,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:10:41,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218660402] [2022-11-18 21:10:41,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:41,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:10:41,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:41,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:10:41,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:10:41,017 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 320 out of 347 [2022-11-18 21:10:41,019 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 310 transitions, 630 flow. Second operand has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:41,019 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:10:41,019 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 320 of 347 [2022-11-18 21:10:41,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:10:41,240 INFO L130 PetriNetUnfolder]: 36/754 cut-off events. [2022-11-18 21:10:41,240 INFO L131 PetriNetUnfolder]: For 14/15 co-relation queries the response was YES. [2022-11-18 21:10:41,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 832 conditions, 754 events. 36/754 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3844 event pairs, 21 based on Foata normal form. 0/651 useless extension candidates. Maximal degree in co-relation 781. Up to 63 conditions per place. [2022-11-18 21:10:41,249 INFO L137 encePairwiseOnDemand]: 344/347 looper letters, 15 selfloop transitions, 2 changer transitions 0/309 dead transitions. [2022-11-18 21:10:41,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 309 transitions, 662 flow [2022-11-18 21:10:41,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:10:41,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:10:41,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 978 transitions. [2022-11-18 21:10:41,252 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9394812680115274 [2022-11-18 21:10:41,252 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 978 transitions. [2022-11-18 21:10:41,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 978 transitions. [2022-11-18 21:10:41,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:10:41,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 978 transitions. [2022-11-18 21:10:41,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.0) internal successors, (978), 3 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:41,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:41,260 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:41,260 INFO L175 Difference]: Start difference. First operand has 310 places, 310 transitions, 630 flow. Second operand 3 states and 978 transitions. [2022-11-18 21:10:41,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 309 transitions, 662 flow [2022-11-18 21:10:41,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 309 transitions, 658 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:10:41,266 INFO L231 Difference]: Finished difference. Result has 309 places, 309 transitions, 628 flow [2022-11-18 21:10:41,267 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=628, PETRI_PLACES=309, PETRI_TRANSITIONS=309} [2022-11-18 21:10:41,268 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -9 predicate places. [2022-11-18 21:10:41,268 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 309 transitions, 628 flow [2022-11-18 21:10:41,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:41,269 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:10:41,269 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] [2022-11-18 21:10:41,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 21:10:41,270 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 21:10:41,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:41,270 INFO L85 PathProgramCache]: Analyzing trace with hash -2130664275, now seen corresponding path program 1 times [2022-11-18 21:10:41,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:41,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552545212] [2022-11-18 21:10:41,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:41,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:41,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:41,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:41,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552545212] [2022-11-18 21:10:41,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552545212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:41,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:41,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:10:41,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794802163] [2022-11-18 21:10:41,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:41,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:10:41,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:41,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:10:41,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:10:41,319 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 347 [2022-11-18 21:10:41,320 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 309 transitions, 628 flow. Second operand has 3 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:41,320 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:10:41,320 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 347 [2022-11-18 21:10:41,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:10:41,645 INFO L130 PetriNetUnfolder]: 174/1382 cut-off events. [2022-11-18 21:10:41,646 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-11-18 21:10:41,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1647 conditions, 1382 events. 174/1382 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 10146 event pairs, 132 based on Foata normal form. 0/1152 useless extension candidates. Maximal degree in co-relation 1589. Up to 250 conditions per place. [2022-11-18 21:10:41,665 INFO L137 encePairwiseOnDemand]: 344/347 looper letters, 21 selfloop transitions, 2 changer transitions 0/308 dead transitions. [2022-11-18 21:10:41,665 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 308 transitions, 672 flow [2022-11-18 21:10:41,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:10:41,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:10:41,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 966 transitions. [2022-11-18 21:10:41,668 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9279538904899135 [2022-11-18 21:10:41,668 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 966 transitions. [2022-11-18 21:10:41,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 966 transitions. [2022-11-18 21:10:41,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:10:41,669 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 966 transitions. [2022-11-18 21:10:41,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 322.0) internal successors, (966), 3 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:41,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:41,675 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:41,675 INFO L175 Difference]: Start difference. First operand has 309 places, 309 transitions, 628 flow. Second operand 3 states and 966 transitions. [2022-11-18 21:10:41,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 308 transitions, 672 flow [2022-11-18 21:10:41,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 308 transitions, 668 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:10:41,681 INFO L231 Difference]: Finished difference. Result has 308 places, 308 transitions, 626 flow [2022-11-18 21:10:41,681 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=622, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=626, PETRI_PLACES=308, PETRI_TRANSITIONS=308} [2022-11-18 21:10:41,682 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -10 predicate places. [2022-11-18 21:10:41,682 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 308 transitions, 626 flow [2022-11-18 21:10:41,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:41,683 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:10:41,683 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] [2022-11-18 21:10:41,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 21:10:41,684 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 21:10:41,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:41,684 INFO L85 PathProgramCache]: Analyzing trace with hash -96418600, now seen corresponding path program 1 times [2022-11-18 21:10:41,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:41,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134878903] [2022-11-18 21:10:41,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:41,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:41,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:41,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:41,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:41,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134878903] [2022-11-18 21:10:41,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134878903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:41,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:41,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:10:41,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709397558] [2022-11-18 21:10:41,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:41,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:10:41,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:41,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:10:41,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:10:41,730 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 320 out of 347 [2022-11-18 21:10:41,732 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 308 transitions, 626 flow. Second operand has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:41,732 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:10:41,732 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 320 of 347 [2022-11-18 21:10:41,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:10:41,950 INFO L130 PetriNetUnfolder]: 52/823 cut-off events. [2022-11-18 21:10:41,950 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-11-18 21:10:41,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 925 conditions, 823 events. 52/823 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4351 event pairs, 39 based on Foata normal form. 0/721 useless extension candidates. Maximal degree in co-relation 860. Up to 90 conditions per place. [2022-11-18 21:10:41,962 INFO L137 encePairwiseOnDemand]: 344/347 looper letters, 15 selfloop transitions, 2 changer transitions 0/307 dead transitions. [2022-11-18 21:10:41,962 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 307 transitions, 658 flow [2022-11-18 21:10:41,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:10:41,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:10:41,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 978 transitions. [2022-11-18 21:10:41,966 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9394812680115274 [2022-11-18 21:10:41,966 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 978 transitions. [2022-11-18 21:10:41,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 978 transitions. [2022-11-18 21:10:41,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:10:41,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 978 transitions. [2022-11-18 21:10:41,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.0) internal successors, (978), 3 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:41,972 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:41,973 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:41,974 INFO L175 Difference]: Start difference. First operand has 308 places, 308 transitions, 626 flow. Second operand 3 states and 978 transitions. [2022-11-18 21:10:41,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 307 transitions, 658 flow [2022-11-18 21:10:41,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 307 transitions, 654 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:10:41,981 INFO L231 Difference]: Finished difference. Result has 307 places, 307 transitions, 624 flow [2022-11-18 21:10:41,982 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=624, PETRI_PLACES=307, PETRI_TRANSITIONS=307} [2022-11-18 21:10:41,983 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -11 predicate places. [2022-11-18 21:10:41,983 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 307 transitions, 624 flow [2022-11-18 21:10:41,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:41,984 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:10:41,984 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] [2022-11-18 21:10:41,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 21:10:41,985 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 21:10:41,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:41,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1562860741, now seen corresponding path program 1 times [2022-11-18 21:10:41,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:41,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510347992] [2022-11-18 21:10:41,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:41,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:42,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:42,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:42,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:42,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510347992] [2022-11-18 21:10:42,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510347992] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:42,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:42,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:10:42,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377373762] [2022-11-18 21:10:42,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:42,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:10:42,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:42,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:10:42,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:10:42,043 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 347 [2022-11-18 21:10:42,045 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 307 transitions, 624 flow. Second operand has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:42,045 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:10:42,045 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 347 [2022-11-18 21:10:42,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:10:42,201 INFO L130 PetriNetUnfolder]: 42/781 cut-off events. [2022-11-18 21:10:42,201 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-18 21:10:42,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 847 conditions, 781 events. 42/781 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4435 event pairs, 6 based on Foata normal form. 0/664 useless extension candidates. Maximal degree in co-relation 774. Up to 43 conditions per place. [2022-11-18 21:10:42,211 INFO L137 encePairwiseOnDemand]: 343/347 looper letters, 14 selfloop transitions, 2 changer transitions 0/309 dead transitions. [2022-11-18 21:10:42,211 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 309 transitions, 662 flow [2022-11-18 21:10:42,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:10:42,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:10:42,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 987 transitions. [2022-11-18 21:10:42,214 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9481268011527377 [2022-11-18 21:10:42,214 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 987 transitions. [2022-11-18 21:10:42,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 987 transitions. [2022-11-18 21:10:42,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:10:42,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 987 transitions. [2022-11-18 21:10:42,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 329.0) internal successors, (987), 3 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:42,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:42,220 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:42,220 INFO L175 Difference]: Start difference. First operand has 307 places, 307 transitions, 624 flow. Second operand 3 states and 987 transitions. [2022-11-18 21:10:42,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 309 transitions, 662 flow [2022-11-18 21:10:42,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 309 transitions, 658 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:10:42,227 INFO L231 Difference]: Finished difference. Result has 306 places, 307 transitions, 630 flow [2022-11-18 21:10:42,228 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=630, PETRI_PLACES=306, PETRI_TRANSITIONS=307} [2022-11-18 21:10:42,228 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -12 predicate places. [2022-11-18 21:10:42,229 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 307 transitions, 630 flow [2022-11-18 21:10:42,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:42,229 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:10:42,230 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] [2022-11-18 21:10:42,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 21:10:42,230 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 21:10:42,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:42,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1739627056, now seen corresponding path program 1 times [2022-11-18 21:10:42,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:42,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620348824] [2022-11-18 21:10:42,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:42,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:42,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:42,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:42,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:42,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620348824] [2022-11-18 21:10:42,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620348824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:42,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:42,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:10:42,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045988206] [2022-11-18 21:10:42,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:42,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:10:42,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:42,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:10:42,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:10:42,282 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 320 out of 347 [2022-11-18 21:10:42,283 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 307 transitions, 630 flow. Second operand has 3 states, 3 states have (on average 321.6666666666667) internal successors, (965), 3 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:42,283 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:10:42,283 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 320 of 347 [2022-11-18 21:10:42,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:10:42,490 INFO L130 PetriNetUnfolder]: 49/966 cut-off events. [2022-11-18 21:10:42,490 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-18 21:10:42,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1042 conditions, 966 events. 49/966 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 5983 event pairs, 12 based on Foata normal form. 0/830 useless extension candidates. Maximal degree in co-relation 901. Up to 49 conditions per place. [2022-11-18 21:10:42,506 INFO L137 encePairwiseOnDemand]: 341/347 looper letters, 16 selfloop transitions, 3 changer transitions 0/309 dead transitions. [2022-11-18 21:10:42,506 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 309 transitions, 674 flow [2022-11-18 21:10:42,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:10:42,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:10:42,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 982 transitions. [2022-11-18 21:10:42,509 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9433237271853987 [2022-11-18 21:10:42,509 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 982 transitions. [2022-11-18 21:10:42,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 982 transitions. [2022-11-18 21:10:42,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:10:42,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 982 transitions. [2022-11-18 21:10:42,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:42,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:42,514 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:42,514 INFO L175 Difference]: Start difference. First operand has 306 places, 307 transitions, 630 flow. Second operand 3 states and 982 transitions. [2022-11-18 21:10:42,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 309 transitions, 674 flow [2022-11-18 21:10:42,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 309 transitions, 674 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 21:10:42,521 INFO L231 Difference]: Finished difference. Result has 306 places, 307 transitions, 645 flow [2022-11-18 21:10:42,521 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=645, PETRI_PLACES=306, PETRI_TRANSITIONS=307} [2022-11-18 21:10:42,525 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -12 predicate places. [2022-11-18 21:10:42,525 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 307 transitions, 645 flow [2022-11-18 21:10:42,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 321.6666666666667) internal successors, (965), 3 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:42,526 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:10:42,526 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] [2022-11-18 21:10:42,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 21:10:42,526 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 21:10:42,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:42,527 INFO L85 PathProgramCache]: Analyzing trace with hash -2110332754, now seen corresponding path program 1 times [2022-11-18 21:10:42,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:42,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54293074] [2022-11-18 21:10:42,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:42,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:42,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:42,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:42,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:42,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54293074] [2022-11-18 21:10:42,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54293074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:42,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:42,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:10:42,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091107315] [2022-11-18 21:10:42,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:42,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:10:42,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:42,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:10:42,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:10:42,608 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 347 [2022-11-18 21:10:42,610 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 307 transitions, 645 flow. Second operand has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:42,610 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:10:42,610 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 347 [2022-11-18 21:10:42,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:10:42,836 INFO L130 PetriNetUnfolder]: 38/1003 cut-off events. [2022-11-18 21:10:42,836 INFO L131 PetriNetUnfolder]: For 11/15 co-relation queries the response was YES. [2022-11-18 21:10:42,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1099 conditions, 1003 events. 38/1003 cut-off events. For 11/15 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6153 event pairs, 5 based on Foata normal form. 0/893 useless extension candidates. Maximal degree in co-relation 894. Up to 53 conditions per place. [2022-11-18 21:10:42,847 INFO L137 encePairwiseOnDemand]: 343/347 looper letters, 17 selfloop transitions, 2 changer transitions 0/312 dead transitions. [2022-11-18 21:10:42,847 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 312 transitions, 698 flow [2022-11-18 21:10:42,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:10:42,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:10:42,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 990 transitions. [2022-11-18 21:10:42,850 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9510086455331412 [2022-11-18 21:10:42,850 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 990 transitions. [2022-11-18 21:10:42,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 990 transitions. [2022-11-18 21:10:42,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:10:42,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 990 transitions. [2022-11-18 21:10:42,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 330.0) internal successors, (990), 3 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:42,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:42,858 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:42,858 INFO L175 Difference]: Start difference. First operand has 306 places, 307 transitions, 645 flow. Second operand 3 states and 990 transitions. [2022-11-18 21:10:42,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 312 transitions, 698 flow [2022-11-18 21:10:42,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 312 transitions, 698 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 21:10:42,864 INFO L231 Difference]: Finished difference. Result has 307 places, 307 transitions, 655 flow [2022-11-18 21:10:42,866 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=655, PETRI_PLACES=307, PETRI_TRANSITIONS=307} [2022-11-18 21:10:42,867 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -11 predicate places. [2022-11-18 21:10:42,867 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 307 transitions, 655 flow [2022-11-18 21:10:42,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:42,868 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:10:42,868 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] [2022-11-18 21:10:42,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 21:10:42,868 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 21:10:42,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:42,869 INFO L85 PathProgramCache]: Analyzing trace with hash 800298320, now seen corresponding path program 1 times [2022-11-18 21:10:42,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:42,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793095679] [2022-11-18 21:10:42,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:42,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:42,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:42,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:42,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793095679] [2022-11-18 21:10:42,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793095679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:42,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:42,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:10:42,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904329940] [2022-11-18 21:10:42,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:42,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:10:42,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:42,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:10:42,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:10:42,942 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 347 [2022-11-18 21:10:42,944 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 307 transitions, 655 flow. Second operand has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:42,944 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:10:42,944 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 347 [2022-11-18 21:10:42,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:10:43,126 INFO L130 PetriNetUnfolder]: 37/869 cut-off events. [2022-11-18 21:10:43,126 INFO L131 PetriNetUnfolder]: For 6/20 co-relation queries the response was YES. [2022-11-18 21:10:43,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 979 conditions, 869 events. 37/869 cut-off events. For 6/20 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4787 event pairs, 8 based on Foata normal form. 3/766 useless extension candidates. Maximal degree in co-relation 825. Up to 36 conditions per place. [2022-11-18 21:10:43,139 INFO L137 encePairwiseOnDemand]: 344/347 looper letters, 13 selfloop transitions, 2 changer transitions 0/308 dead transitions. [2022-11-18 21:10:43,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 308 transitions, 689 flow [2022-11-18 21:10:43,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:10:43,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:10:43,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 988 transitions. [2022-11-18 21:10:43,142 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9490874159462056 [2022-11-18 21:10:43,142 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 988 transitions. [2022-11-18 21:10:43,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 988 transitions. [2022-11-18 21:10:43,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:10:43,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 988 transitions. [2022-11-18 21:10:43,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 329.3333333333333) internal successors, (988), 3 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:43,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:43,149 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:43,149 INFO L175 Difference]: Start difference. First operand has 307 places, 307 transitions, 655 flow. Second operand 3 states and 988 transitions. [2022-11-18 21:10:43,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 308 transitions, 689 flow [2022-11-18 21:10:43,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 308 transitions, 689 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 21:10:43,156 INFO L231 Difference]: Finished difference. Result has 308 places, 306 transitions, 657 flow [2022-11-18 21:10:43,156 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=653, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=657, PETRI_PLACES=308, PETRI_TRANSITIONS=306} [2022-11-18 21:10:43,157 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -10 predicate places. [2022-11-18 21:10:43,157 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 306 transitions, 657 flow [2022-11-18 21:10:43,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:43,158 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:10:43,159 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] [2022-11-18 21:10:43,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 21:10:43,159 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 21:10:43,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:43,160 INFO L85 PathProgramCache]: Analyzing trace with hash -805187118, now seen corresponding path program 1 times [2022-11-18 21:10:43,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:43,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252378279] [2022-11-18 21:10:43,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:43,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:43,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:43,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:43,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:43,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252378279] [2022-11-18 21:10:43,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252378279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:43,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:43,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:10:43,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672549897] [2022-11-18 21:10:43,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:43,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:10:43,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:43,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:10:43,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:10:43,206 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 347 [2022-11-18 21:10:43,207 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 306 transitions, 657 flow. Second operand has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:43,207 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:10:43,208 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 347 [2022-11-18 21:10:43,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:10:43,464 INFO L130 PetriNetUnfolder]: 33/1092 cut-off events. [2022-11-18 21:10:43,464 INFO L131 PetriNetUnfolder]: For 23/33 co-relation queries the response was YES. [2022-11-18 21:10:43,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1200 conditions, 1092 events. 33/1092 cut-off events. For 23/33 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 6222 event pairs, 6 based on Foata normal form. 1/976 useless extension candidates. Maximal degree in co-relation 1043. Up to 51 conditions per place. [2022-11-18 21:10:43,480 INFO L137 encePairwiseOnDemand]: 343/347 looper letters, 17 selfloop transitions, 2 changer transitions 0/311 dead transitions. [2022-11-18 21:10:43,480 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 311 transitions, 710 flow [2022-11-18 21:10:43,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:10:43,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:10:43,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 990 transitions. [2022-11-18 21:10:43,484 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9510086455331412 [2022-11-18 21:10:43,484 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 990 transitions. [2022-11-18 21:10:43,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 990 transitions. [2022-11-18 21:10:43,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:10:43,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 990 transitions. [2022-11-18 21:10:43,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 330.0) internal successors, (990), 3 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:43,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:43,506 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:43,506 INFO L175 Difference]: Start difference. First operand has 308 places, 306 transitions, 657 flow. Second operand 3 states and 990 transitions. [2022-11-18 21:10:43,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 311 transitions, 710 flow [2022-11-18 21:10:43,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 311 transitions, 706 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:10:43,512 INFO L231 Difference]: Finished difference. Result has 307 places, 306 transitions, 663 flow [2022-11-18 21:10:43,513 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=649, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=663, PETRI_PLACES=307, PETRI_TRANSITIONS=306} [2022-11-18 21:10:43,514 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -11 predicate places. [2022-11-18 21:10:43,514 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 306 transitions, 663 flow [2022-11-18 21:10:43,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:43,515 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:10:43,515 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] [2022-11-18 21:10:43,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 21:10:43,516 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 21:10:43,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:43,516 INFO L85 PathProgramCache]: Analyzing trace with hash 991033126, now seen corresponding path program 1 times [2022-11-18 21:10:43,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:43,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947904228] [2022-11-18 21:10:43,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:43,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:43,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:43,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:43,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947904228] [2022-11-18 21:10:43,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947904228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:43,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:43,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:10:43,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452136557] [2022-11-18 21:10:43,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:43,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:10:43,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:43,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:10:43,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:10:43,593 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 347 [2022-11-18 21:10:43,594 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 306 transitions, 663 flow. Second operand has 3 states, 3 states have (on average 319.0) internal successors, (957), 3 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:43,594 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:10:43,594 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 347 [2022-11-18 21:10:43,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:10:44,280 INFO L130 PetriNetUnfolder]: 235/3700 cut-off events. [2022-11-18 21:10:44,280 INFO L131 PetriNetUnfolder]: For 69/171 co-relation queries the response was YES. [2022-11-18 21:10:44,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4186 conditions, 3700 events. 235/3700 cut-off events. For 69/171 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 36595 event pairs, 104 based on Foata normal form. 0/3264 useless extension candidates. Maximal degree in co-relation 3493. Up to 323 conditions per place. [2022-11-18 21:10:44,315 INFO L137 encePairwiseOnDemand]: 339/347 looper letters, 18 selfloop transitions, 4 changer transitions 0/308 dead transitions. [2022-11-18 21:10:44,316 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 308 transitions, 713 flow [2022-11-18 21:10:44,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:10:44,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:10:44,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 977 transitions. [2022-11-18 21:10:44,319 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9385206532180596 [2022-11-18 21:10:44,319 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 977 transitions. [2022-11-18 21:10:44,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 977 transitions. [2022-11-18 21:10:44,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:10:44,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 977 transitions. [2022-11-18 21:10:44,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 325.6666666666667) internal successors, (977), 3 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:44,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:44,327 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:44,327 INFO L175 Difference]: Start difference. First operand has 307 places, 306 transitions, 663 flow. Second operand 3 states and 977 transitions. [2022-11-18 21:10:44,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 308 transitions, 713 flow [2022-11-18 21:10:44,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 308 transitions, 713 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 21:10:44,335 INFO L231 Difference]: Finished difference. Result has 306 places, 306 transitions, 683 flow [2022-11-18 21:10:44,336 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=655, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=683, PETRI_PLACES=306, PETRI_TRANSITIONS=306} [2022-11-18 21:10:44,337 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -12 predicate places. [2022-11-18 21:10:44,338 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 306 transitions, 683 flow [2022-11-18 21:10:44,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 319.0) internal successors, (957), 3 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:44,338 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:10:44,339 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] [2022-11-18 21:10:44,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 21:10:44,339 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 21:10:44,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:44,340 INFO L85 PathProgramCache]: Analyzing trace with hash -167931050, now seen corresponding path program 1 times [2022-11-18 21:10:44,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:44,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059249228] [2022-11-18 21:10:44,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:44,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:44,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:44,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:44,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059249228] [2022-11-18 21:10:44,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059249228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:44,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:44,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:10:44,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697360481] [2022-11-18 21:10:44,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:44,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:10:44,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:44,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:10:44,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:10:44,402 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 347 [2022-11-18 21:10:44,404 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 306 transitions, 683 flow. Second operand has 3 states, 3 states have (on average 322.6666666666667) internal successors, (968), 3 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:44,404 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:10:44,404 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 347 [2022-11-18 21:10:44,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:10:44,886 INFO L130 PetriNetUnfolder]: 92/2130 cut-off events. [2022-11-18 21:10:44,887 INFO L131 PetriNetUnfolder]: For 27/60 co-relation queries the response was YES. [2022-11-18 21:10:44,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2450 conditions, 2130 events. 92/2130 cut-off events. For 27/60 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 17522 event pairs, 16 based on Foata normal form. 2/1903 useless extension candidates. Maximal degree in co-relation 1934. Up to 84 conditions per place. [2022-11-18 21:10:44,906 INFO L137 encePairwiseOnDemand]: 344/347 looper letters, 16 selfloop transitions, 2 changer transitions 0/307 dead transitions. [2022-11-18 21:10:44,906 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 307 transitions, 723 flow [2022-11-18 21:10:44,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:10:44,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:10:44,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 982 transitions. [2022-11-18 21:10:44,909 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9433237271853987 [2022-11-18 21:10:44,909 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 982 transitions. [2022-11-18 21:10:44,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 982 transitions. [2022-11-18 21:10:44,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:10:44,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 982 transitions. [2022-11-18 21:10:44,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:44,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:44,915 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:44,915 INFO L175 Difference]: Start difference. First operand has 306 places, 306 transitions, 683 flow. Second operand 3 states and 982 transitions. [2022-11-18 21:10:44,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 307 transitions, 723 flow [2022-11-18 21:10:44,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 307 transitions, 723 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 21:10:44,923 INFO L231 Difference]: Finished difference. Result has 307 places, 305 transitions, 685 flow [2022-11-18 21:10:44,924 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=681, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=685, PETRI_PLACES=307, PETRI_TRANSITIONS=305} [2022-11-18 21:10:44,925 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -11 predicate places. [2022-11-18 21:10:44,925 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 305 transitions, 685 flow [2022-11-18 21:10:44,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 322.6666666666667) internal successors, (968), 3 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:44,926 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:10:44,926 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] [2022-11-18 21:10:44,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 21:10:44,927 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 21:10:44,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:44,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1773416488, now seen corresponding path program 1 times [2022-11-18 21:10:44,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:44,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201628853] [2022-11-18 21:10:44,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:44,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:44,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:44,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:44,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201628853] [2022-11-18 21:10:44,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201628853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:44,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:44,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:10:44,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021131038] [2022-11-18 21:10:44,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:44,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:10:44,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:44,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:10:44,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:10:44,981 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 347 [2022-11-18 21:10:44,982 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 305 transitions, 685 flow. Second operand has 3 states, 3 states have (on average 325.0) internal successors, (975), 3 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:44,983 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:10:44,983 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 347 [2022-11-18 21:10:44,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:10:45,462 INFO L130 PetriNetUnfolder]: 108/2658 cut-off events. [2022-11-18 21:10:45,462 INFO L131 PetriNetUnfolder]: For 42/46 co-relation queries the response was YES. [2022-11-18 21:10:45,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2988 conditions, 2658 events. 108/2658 cut-off events. For 42/46 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 23161 event pairs, 16 based on Foata normal form. 0/2419 useless extension candidates. Maximal degree in co-relation 2555. Up to 164 conditions per place. [2022-11-18 21:10:45,485 INFO L137 encePairwiseOnDemand]: 343/347 looper letters, 16 selfloop transitions, 2 changer transitions 0/309 dead transitions. [2022-11-18 21:10:45,485 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 309 transitions, 733 flow [2022-11-18 21:10:45,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:10:45,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:10:45,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 989 transitions. [2022-11-18 21:10:45,488 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9500480307396734 [2022-11-18 21:10:45,488 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 989 transitions. [2022-11-18 21:10:45,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 989 transitions. [2022-11-18 21:10:45,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:10:45,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 989 transitions. [2022-11-18 21:10:45,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 329.6666666666667) internal successors, (989), 3 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:45,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:45,493 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:45,493 INFO L175 Difference]: Start difference. First operand has 307 places, 305 transitions, 685 flow. Second operand 3 states and 989 transitions. [2022-11-18 21:10:45,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 309 transitions, 733 flow [2022-11-18 21:10:45,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 309 transitions, 729 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:10:45,504 INFO L231 Difference]: Finished difference. Result has 306 places, 305 transitions, 691 flow [2022-11-18 21:10:45,505 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=691, PETRI_PLACES=306, PETRI_TRANSITIONS=305} [2022-11-18 21:10:45,506 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -12 predicate places. [2022-11-18 21:10:45,506 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 305 transitions, 691 flow [2022-11-18 21:10:45,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 325.0) internal successors, (975), 3 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:45,507 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:10:45,507 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] [2022-11-18 21:10:45,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 21:10:45,507 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 21:10:45,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:45,508 INFO L85 PathProgramCache]: Analyzing trace with hash -2143362817, now seen corresponding path program 1 times [2022-11-18 21:10:45,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:45,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846409026] [2022-11-18 21:10:45,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:45,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:46,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:46,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:46,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846409026] [2022-11-18 21:10:46,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846409026] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:46,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:46,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:10:46,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634925836] [2022-11-18 21:10:46,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:46,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:10:46,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:46,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:10:46,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:10:46,023 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 347 [2022-11-18 21:10:46,025 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 305 transitions, 691 flow. Second operand has 6 states, 6 states have (on average 310.0) internal successors, (1860), 6 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:46,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:10:46,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 347 [2022-11-18 21:10:46,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:10:46,362 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([941] thread3EXIT-->L77-7: Formula: (and (= 0 v_thread3Thread1of1ForFork2_thidvar1_4) (= 0 v_thread3Thread1of1ForFork2_thidvar3_4) (= 0 v_thread3Thread1of1ForFork2_thidvar2_4) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem33#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread3Thread1of1ForFork2_thidvar0_4)) InVars {thread3Thread1of1ForFork2_thidvar3=v_thread3Thread1of1ForFork2_thidvar3_4, thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_4, ULTIMATE.start_main_#t~mem33#1=|v_ULTIMATE.start_main_#t~mem33#1_5|, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_4, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_4} OutVars{thread3Thread1of1ForFork2_thidvar3=v_thread3Thread1of1ForFork2_thidvar3_4, thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_4, ULTIMATE.start_main_#t~mem33#1=|v_ULTIMATE.start_main_#t~mem33#1_5|, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_4, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_4} AuxVars[] AssignedVars[][280], [395#(= |#race~length_4~0| 0), 376#(= |#race~length_2~0| 0), Black: 388#true, 71#L77-7true, Black: 393#true, 381#(= |#race~to_int_1~0| 0), 390#(= |#race~to_int_3~0| 0), Black: 369#true, 404#(= |#race~to_int_5~0| 0), Black: 402#true, 412#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), Black: 374#true, 371#(= |#race~length_0~0| 0), Black: 379#true]) [2022-11-18 21:10:46,362 INFO L383 tUnfolder$Statistics]: this new event has 211 ancestors and is not cut-off event [2022-11-18 21:10:46,362 INFO L386 tUnfolder$Statistics]: existing Event has 211 ancestors and is not cut-off event [2022-11-18 21:10:46,362 INFO L386 tUnfolder$Statistics]: existing Event has 239 ancestors and is not cut-off event [2022-11-18 21:10:46,362 INFO L386 tUnfolder$Statistics]: existing Event has 211 ancestors and is not cut-off event [2022-11-18 21:10:46,365 INFO L130 PetriNetUnfolder]: 46/1565 cut-off events. [2022-11-18 21:10:46,365 INFO L131 PetriNetUnfolder]: For 2/24 co-relation queries the response was YES. [2022-11-18 21:10:46,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1790 conditions, 1565 events. 46/1565 cut-off events. For 2/24 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 11377 event pairs, 0 based on Foata normal form. 8/1426 useless extension candidates. Maximal degree in co-relation 1452. Up to 52 conditions per place. [2022-11-18 21:10:46,382 INFO L137 encePairwiseOnDemand]: 342/347 looper letters, 23 selfloop transitions, 4 changer transitions 0/304 dead transitions. [2022-11-18 21:10:46,382 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 304 transitions, 743 flow [2022-11-18 21:10:46,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:10:46,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 21:10:46,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1876 transitions. [2022-11-18 21:10:46,387 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9010566762728146 [2022-11-18 21:10:46,387 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1876 transitions. [2022-11-18 21:10:46,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1876 transitions. [2022-11-18 21:10:46,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:10:46,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1876 transitions. [2022-11-18 21:10:46,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 312.6666666666667) internal successors, (1876), 6 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:46,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 347.0) internal successors, (2429), 7 states have internal predecessors, (2429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:46,397 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 347.0) internal successors, (2429), 7 states have internal predecessors, (2429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:46,397 INFO L175 Difference]: Start difference. First operand has 306 places, 305 transitions, 691 flow. Second operand 6 states and 1876 transitions. [2022-11-18 21:10:46,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 304 transitions, 743 flow [2022-11-18 21:10:46,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 304 transitions, 743 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 21:10:46,432 INFO L231 Difference]: Finished difference. Result has 310 places, 304 transitions, 697 flow [2022-11-18 21:10:46,432 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=697, PETRI_PLACES=310, PETRI_TRANSITIONS=304} [2022-11-18 21:10:46,433 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -8 predicate places. [2022-11-18 21:10:46,433 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 304 transitions, 697 flow [2022-11-18 21:10:46,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 310.0) internal successors, (1860), 6 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:46,434 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:10:46,434 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:10:46,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 21:10:46,434 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 21:10:46,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:46,435 INFO L85 PathProgramCache]: Analyzing trace with hash -422800172, now seen corresponding path program 1 times [2022-11-18 21:10:46,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:46,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682328043] [2022-11-18 21:10:46,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:46,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:46,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:46,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:46,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:46,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682328043] [2022-11-18 21:10:46,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682328043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:46,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:46,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:10:46,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450636767] [2022-11-18 21:10:46,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:46,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:10:46,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:46,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:10:46,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:10:46,490 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 347 [2022-11-18 21:10:46,491 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 304 transitions, 697 flow. Second operand has 3 states, 3 states have (on average 323.0) internal successors, (969), 3 states have internal predecessors, (969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:46,491 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:10:46,491 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 347 [2022-11-18 21:10:46,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:10:46,954 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([890] L55-24-->L55-25: Formula: true InVars {} OutVars{thread3Thread1of1ForFork2_#t~nondet12#1=|v_thread3Thread1of1ForFork2_#t~nondet12#1_1|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~nondet12#1][180], [395#(= |#race~length_4~0| 0), 132#L55-25true, 376#(= |#race~length_2~0| 0), Black: 388#true, 117#L76-7true, Black: 393#true, 381#(= |#race~to_int_1~0| 0), 414#true, Black: 369#true, 390#(= |#race~to_int_3~0| 0), Black: 402#true, 404#(= |#race~to_int_5~0| 0), 412#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), Black: 374#true, 371#(= |#race~length_0~0| 0), Black: 379#true]) [2022-11-18 21:10:46,955 INFO L383 tUnfolder$Statistics]: this new event has 223 ancestors and is cut-off event [2022-11-18 21:10:46,955 INFO L386 tUnfolder$Statistics]: existing Event has 195 ancestors and is cut-off event [2022-11-18 21:10:46,955 INFO L386 tUnfolder$Statistics]: existing Event has 195 ancestors and is cut-off event [2022-11-18 21:10:46,955 INFO L386 tUnfolder$Statistics]: existing Event has 195 ancestors and is cut-off event [2022-11-18 21:10:46,980 INFO L130 PetriNetUnfolder]: 131/1907 cut-off events. [2022-11-18 21:10:46,980 INFO L131 PetriNetUnfolder]: For 95/112 co-relation queries the response was YES. [2022-11-18 21:10:46,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2398 conditions, 1907 events. 131/1907 cut-off events. For 95/112 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 15706 event pairs, 36 based on Foata normal form. 0/1745 useless extension candidates. Maximal degree in co-relation 2290. Up to 184 conditions per place. [2022-11-18 21:10:47,004 INFO L137 encePairwiseOnDemand]: 344/347 looper letters, 15 selfloop transitions, 2 changer transitions 0/305 dead transitions. [2022-11-18 21:10:47,005 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 305 transitions, 735 flow [2022-11-18 21:10:47,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:10:47,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:10:47,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 981 transitions. [2022-11-18 21:10:47,008 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9423631123919308 [2022-11-18 21:10:47,009 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 981 transitions. [2022-11-18 21:10:47,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 981 transitions. [2022-11-18 21:10:47,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:10:47,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 981 transitions. [2022-11-18 21:10:47,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 327.0) internal successors, (981), 3 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:47,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:47,015 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:47,016 INFO L175 Difference]: Start difference. First operand has 310 places, 304 transitions, 697 flow. Second operand 3 states and 981 transitions. [2022-11-18 21:10:47,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 305 transitions, 735 flow [2022-11-18 21:10:47,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 305 transitions, 728 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 21:10:47,024 INFO L231 Difference]: Finished difference. Result has 307 places, 303 transitions, 692 flow [2022-11-18 21:10:47,024 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=688, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=692, PETRI_PLACES=307, PETRI_TRANSITIONS=303} [2022-11-18 21:10:47,025 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -11 predicate places. [2022-11-18 21:10:47,025 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 303 transitions, 692 flow [2022-11-18 21:10:47,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 323.0) internal successors, (969), 3 states have internal predecessors, (969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:47,026 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:10:47,026 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] [2022-11-18 21:10:47,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 21:10:47,027 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 21:10:47,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:47,027 INFO L85 PathProgramCache]: Analyzing trace with hash 614426831, now seen corresponding path program 1 times [2022-11-18 21:10:47,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:47,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995710672] [2022-11-18 21:10:47,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:47,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:47,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:47,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:47,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:47,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995710672] [2022-11-18 21:10:47,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995710672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:47,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:47,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:10:47,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617152754] [2022-11-18 21:10:47,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:47,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:10:47,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:47,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:10:47,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:10:47,551 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 347 [2022-11-18 21:10:47,552 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 303 transitions, 692 flow. Second operand has 6 states, 6 states have (on average 311.0) internal successors, (1866), 6 states have internal predecessors, (1866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:47,553 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:10:47,553 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 347 [2022-11-18 21:10:47,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:10:47,882 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([941] thread3EXIT-->L77-7: Formula: (and (= 0 v_thread3Thread1of1ForFork2_thidvar1_4) (= 0 v_thread3Thread1of1ForFork2_thidvar3_4) (= 0 v_thread3Thread1of1ForFork2_thidvar2_4) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem33#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread3Thread1of1ForFork2_thidvar0_4)) InVars {thread3Thread1of1ForFork2_thidvar3=v_thread3Thread1of1ForFork2_thidvar3_4, thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_4, ULTIMATE.start_main_#t~mem33#1=|v_ULTIMATE.start_main_#t~mem33#1_5|, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_4, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_4} OutVars{thread3Thread1of1ForFork2_thidvar3=v_thread3Thread1of1ForFork2_thidvar3_4, thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_4, ULTIMATE.start_main_#t~mem33#1=|v_ULTIMATE.start_main_#t~mem33#1_5|, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_4, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_4} AuxVars[] AssignedVars[][278], [395#(= |#race~length_4~0| 0), 376#(= |#race~length_2~0| 0), Black: 388#true, 71#L77-7true, Black: 393#true, 381#(= |#race~to_int_1~0| 0), 390#(= |#race~to_int_3~0| 0), Black: 369#true, 414#true, 404#(= |#race~to_int_5~0| 0), Black: 402#true, 412#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 423#(and (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) |ULTIMATE.start_main_~#t2~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t2~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ |ULTIMATE.start_main_~#t2~0#1.offset| 1)) 0) (= 0 (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t2~0#1.offset|)))), Black: 374#true, 371#(= |#race~length_0~0| 0), Black: 379#true]) [2022-11-18 21:10:47,883 INFO L383 tUnfolder$Statistics]: this new event has 211 ancestors and is not cut-off event [2022-11-18 21:10:47,883 INFO L386 tUnfolder$Statistics]: existing Event has 239 ancestors and is not cut-off event [2022-11-18 21:10:47,883 INFO L386 tUnfolder$Statistics]: existing Event has 211 ancestors and is not cut-off event [2022-11-18 21:10:47,883 INFO L386 tUnfolder$Statistics]: existing Event has 211 ancestors and is not cut-off event [2022-11-18 21:10:47,887 INFO L130 PetriNetUnfolder]: 46/1532 cut-off events. [2022-11-18 21:10:47,887 INFO L131 PetriNetUnfolder]: For 2/23 co-relation queries the response was YES. [2022-11-18 21:10:47,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1820 conditions, 1532 events. 46/1532 cut-off events. For 2/23 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 10987 event pairs, 0 based on Foata normal form. 4/1422 useless extension candidates. Maximal degree in co-relation 1708. Up to 42 conditions per place. [2022-11-18 21:10:47,906 INFO L137 encePairwiseOnDemand]: 342/347 looper letters, 22 selfloop transitions, 4 changer transitions 0/302 dead transitions. [2022-11-18 21:10:47,906 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 302 transitions, 742 flow [2022-11-18 21:10:47,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:10:47,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 21:10:47,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1875 transitions. [2022-11-18 21:10:47,911 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9005763688760807 [2022-11-18 21:10:47,911 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1875 transitions. [2022-11-18 21:10:47,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1875 transitions. [2022-11-18 21:10:47,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:10:47,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1875 transitions. [2022-11-18 21:10:47,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 312.5) internal successors, (1875), 6 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:47,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 347.0) internal successors, (2429), 7 states have internal predecessors, (2429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:47,921 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 347.0) internal successors, (2429), 7 states have internal predecessors, (2429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:47,921 INFO L175 Difference]: Start difference. First operand has 307 places, 303 transitions, 692 flow. Second operand 6 states and 1875 transitions. [2022-11-18 21:10:47,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 302 transitions, 742 flow [2022-11-18 21:10:47,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 302 transitions, 738 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:10:47,928 INFO L231 Difference]: Finished difference. Result has 309 places, 302 transitions, 694 flow [2022-11-18 21:10:47,928 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=686, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=694, PETRI_PLACES=309, PETRI_TRANSITIONS=302} [2022-11-18 21:10:47,929 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -9 predicate places. [2022-11-18 21:10:47,929 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 302 transitions, 694 flow [2022-11-18 21:10:47,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 311.0) internal successors, (1866), 6 states have internal predecessors, (1866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:47,930 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:10:47,930 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, 1, 1, 1, 1] [2022-11-18 21:10:47,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 21:10:47,931 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 21:10:47,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:47,931 INFO L85 PathProgramCache]: Analyzing trace with hash -2005792327, now seen corresponding path program 1 times [2022-11-18 21:10:47,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:47,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737051908] [2022-11-18 21:10:47,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:47,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:47,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:48,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:48,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:48,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737051908] [2022-11-18 21:10:48,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737051908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:48,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:48,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:10:48,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355585708] [2022-11-18 21:10:48,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:48,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:10:48,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:48,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:10:48,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:10:48,429 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 347 [2022-11-18 21:10:48,431 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 302 transitions, 694 flow. Second operand has 6 states, 6 states have (on average 312.0) internal successors, (1872), 6 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:48,431 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:10:48,431 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 347 [2022-11-18 21:10:48,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:10:48,753 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([941] thread3EXIT-->L77-7: Formula: (and (= 0 v_thread3Thread1of1ForFork2_thidvar1_4) (= 0 v_thread3Thread1of1ForFork2_thidvar3_4) (= 0 v_thread3Thread1of1ForFork2_thidvar2_4) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem33#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread3Thread1of1ForFork2_thidvar0_4)) InVars {thread3Thread1of1ForFork2_thidvar3=v_thread3Thread1of1ForFork2_thidvar3_4, thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_4, ULTIMATE.start_main_#t~mem33#1=|v_ULTIMATE.start_main_#t~mem33#1_5|, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_4, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_4} OutVars{thread3Thread1of1ForFork2_thidvar3=v_thread3Thread1of1ForFork2_thidvar3_4, thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_4, ULTIMATE.start_main_#t~mem33#1=|v_ULTIMATE.start_main_#t~mem33#1_5|, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_4, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_4} AuxVars[] AssignedVars[][277], [395#(= |#race~length_4~0| 0), 376#(= |#race~length_2~0| 0), Black: 388#true, 71#L77-7true, Black: 393#true, 381#(= |#race~to_int_1~0| 0), 390#(= |#race~to_int_3~0| 0), Black: 369#true, 404#(= |#race~to_int_5~0| 0), Black: 402#true, 412#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 423#(and (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) |ULTIMATE.start_main_~#t2~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t2~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ |ULTIMATE.start_main_~#t2~0#1.offset| 1)) 0) (= 0 (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t2~0#1.offset|)))), 430#(and (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t3~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) (+ |ULTIMATE.start_main_~#t3~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) |ULTIMATE.start_main_~#t3~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t3~0#1.offset|)) 0)), Black: 374#true, 371#(= |#race~length_0~0| 0), Black: 379#true]) [2022-11-18 21:10:48,754 INFO L383 tUnfolder$Statistics]: this new event has 211 ancestors and is not cut-off event [2022-11-18 21:10:48,754 INFO L386 tUnfolder$Statistics]: existing Event has 211 ancestors and is not cut-off event [2022-11-18 21:10:48,754 INFO L386 tUnfolder$Statistics]: existing Event has 239 ancestors and is not cut-off event [2022-11-18 21:10:48,754 INFO L386 tUnfolder$Statistics]: existing Event has 211 ancestors and is not cut-off event [2022-11-18 21:10:48,757 INFO L130 PetriNetUnfolder]: 46/1528 cut-off events. [2022-11-18 21:10:48,757 INFO L131 PetriNetUnfolder]: For 4/25 co-relation queries the response was YES. [2022-11-18 21:10:48,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1760 conditions, 1528 events. 46/1528 cut-off events. For 4/25 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 10975 event pairs, 0 based on Foata normal form. 0/1418 useless extension candidates. Maximal degree in co-relation 1648. Up to 42 conditions per place. [2022-11-18 21:10:48,775 INFO L137 encePairwiseOnDemand]: 342/347 looper letters, 21 selfloop transitions, 4 changer transitions 0/301 dead transitions. [2022-11-18 21:10:48,775 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 301 transitions, 742 flow [2022-11-18 21:10:48,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:10:48,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 21:10:48,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1874 transitions. [2022-11-18 21:10:48,779 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9000960614793467 [2022-11-18 21:10:48,779 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1874 transitions. [2022-11-18 21:10:48,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1874 transitions. [2022-11-18 21:10:48,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:10:48,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1874 transitions. [2022-11-18 21:10:48,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 312.3333333333333) internal successors, (1874), 6 states have internal predecessors, (1874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:48,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 347.0) internal successors, (2429), 7 states have internal predecessors, (2429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:48,789 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 347.0) internal successors, (2429), 7 states have internal predecessors, (2429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:48,789 INFO L175 Difference]: Start difference. First operand has 309 places, 302 transitions, 694 flow. Second operand 6 states and 1874 transitions. [2022-11-18 21:10:48,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 301 transitions, 742 flow [2022-11-18 21:10:48,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 301 transitions, 735 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 21:10:48,795 INFO L231 Difference]: Finished difference. Result has 309 places, 301 transitions, 693 flow [2022-11-18 21:10:48,795 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=685, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=693, PETRI_PLACES=309, PETRI_TRANSITIONS=301} [2022-11-18 21:10:48,796 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -9 predicate places. [2022-11-18 21:10:48,796 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 301 transitions, 693 flow [2022-11-18 21:10:48,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 312.0) internal successors, (1872), 6 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:48,797 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:10:48,797 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:10:48,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 21:10:48,798 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 21:10:48,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:48,798 INFO L85 PathProgramCache]: Analyzing trace with hash -2126330365, now seen corresponding path program 1 times [2022-11-18 21:10:48,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:48,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245549944] [2022-11-18 21:10:48,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:48,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:48,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:48,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:48,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:48,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245549944] [2022-11-18 21:10:48,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245549944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:48,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:48,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:10:48,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742348479] [2022-11-18 21:10:48,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:48,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:10:48,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:48,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:10:48,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:10:48,874 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 347 [2022-11-18 21:10:48,875 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 301 transitions, 693 flow. Second operand has 3 states, 3 states have (on average 329.3333333333333) internal successors, (988), 3 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:48,876 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:10:48,876 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 347 [2022-11-18 21:10:48,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:10:49,244 INFO L130 PetriNetUnfolder]: 72/2125 cut-off events. [2022-11-18 21:10:49,245 INFO L131 PetriNetUnfolder]: For 13/29 co-relation queries the response was YES. [2022-11-18 21:10:49,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2432 conditions, 2125 events. 72/2125 cut-off events. For 13/29 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 17132 event pairs, 8 based on Foata normal form. 0/1985 useless extension candidates. Maximal degree in co-relation 2253. Up to 66 conditions per place. [2022-11-18 21:10:49,269 INFO L137 encePairwiseOnDemand]: 345/347 looper letters, 9 selfloop transitions, 1 changer transitions 0/300 dead transitions. [2022-11-18 21:10:49,269 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 300 transitions, 711 flow [2022-11-18 21:10:49,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:10:49,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:10:49,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 989 transitions. [2022-11-18 21:10:49,272 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9500480307396734 [2022-11-18 21:10:49,272 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 989 transitions. [2022-11-18 21:10:49,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 989 transitions. [2022-11-18 21:10:49,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:10:49,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 989 transitions. [2022-11-18 21:10:49,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 329.6666666666667) internal successors, (989), 3 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:49,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:49,278 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:49,278 INFO L175 Difference]: Start difference. First operand has 309 places, 301 transitions, 693 flow. Second operand 3 states and 989 transitions. [2022-11-18 21:10:49,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 300 transitions, 711 flow [2022-11-18 21:10:49,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 300 transitions, 704 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 21:10:49,284 INFO L231 Difference]: Finished difference. Result has 306 places, 300 transitions, 686 flow [2022-11-18 21:10:49,285 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=686, PETRI_PLACES=306, PETRI_TRANSITIONS=300} [2022-11-18 21:10:49,285 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -12 predicate places. [2022-11-18 21:10:49,285 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 300 transitions, 686 flow [2022-11-18 21:10:49,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 329.3333333333333) internal successors, (988), 3 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:49,286 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:10:49,286 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:10:49,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 21:10:49,287 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 21:10:49,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:49,287 INFO L85 PathProgramCache]: Analyzing trace with hash 129937885, now seen corresponding path program 1 times [2022-11-18 21:10:49,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:49,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106071356] [2022-11-18 21:10:49,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:49,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:49,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:49,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:49,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106071356] [2022-11-18 21:10:49,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106071356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:49,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:49,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:10:49,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734014903] [2022-11-18 21:10:49,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:49,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:10:49,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:49,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:10:49,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:10:49,357 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 347 [2022-11-18 21:10:49,358 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 300 transitions, 686 flow. Second operand has 3 states, 3 states have (on average 326.3333333333333) internal successors, (979), 3 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:49,358 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:10:49,358 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 347 [2022-11-18 21:10:49,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:10:49,759 INFO L130 PetriNetUnfolder]: 79/2286 cut-off events. [2022-11-18 21:10:49,759 INFO L131 PetriNetUnfolder]: For 21/44 co-relation queries the response was YES. [2022-11-18 21:10:49,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2636 conditions, 2286 events. 79/2286 cut-off events. For 21/44 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 19007 event pairs, 18 based on Foata normal form. 0/2143 useless extension candidates. Maximal degree in co-relation 2507. Up to 70 conditions per place. [2022-11-18 21:10:49,784 INFO L137 encePairwiseOnDemand]: 344/347 looper letters, 11 selfloop transitions, 1 changer transitions 0/298 dead transitions. [2022-11-18 21:10:49,784 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 298 transitions, 706 flow [2022-11-18 21:10:49,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:10:49,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:10:49,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 983 transitions. [2022-11-18 21:10:49,787 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9442843419788665 [2022-11-18 21:10:49,787 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 983 transitions. [2022-11-18 21:10:49,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 983 transitions. [2022-11-18 21:10:49,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:10:49,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 983 transitions. [2022-11-18 21:10:49,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 327.6666666666667) internal successors, (983), 3 states have internal predecessors, (983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:49,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:49,792 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:49,792 INFO L175 Difference]: Start difference. First operand has 306 places, 300 transitions, 686 flow. Second operand 3 states and 983 transitions. [2022-11-18 21:10:49,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 298 transitions, 706 flow [2022-11-18 21:10:49,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 298 transitions, 705 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 21:10:49,797 INFO L231 Difference]: Finished difference. Result has 305 places, 298 transitions, 683 flow [2022-11-18 21:10:49,798 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=681, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=683, PETRI_PLACES=305, PETRI_TRANSITIONS=298} [2022-11-18 21:10:49,798 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -13 predicate places. [2022-11-18 21:10:49,798 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 298 transitions, 683 flow [2022-11-18 21:10:49,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 326.3333333333333) internal successors, (979), 3 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:49,799 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:10:49,800 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:10:49,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 21:10:49,800 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 21:10:49,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:49,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1611342744, now seen corresponding path program 1 times [2022-11-18 21:10:49,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:49,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080347144] [2022-11-18 21:10:49,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:49,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:49,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:49,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:49,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:49,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080347144] [2022-11-18 21:10:49,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080347144] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:49,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:49,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:10:49,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16311346] [2022-11-18 21:10:49,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:49,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:10:49,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:49,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:10:49,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:10:49,886 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 347 [2022-11-18 21:10:49,887 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 298 transitions, 683 flow. Second operand has 3 states, 3 states have (on average 326.3333333333333) internal successors, (979), 3 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:49,888 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:10:49,888 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 347 [2022-11-18 21:10:49,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:10:50,179 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([894] L55-25-->L55-26: Formula: (= |v_#race~result_8~0_1| |v_thread3Thread1of1ForFork2_#t~nondet12#1_3|) InVars {thread3Thread1of1ForFork2_#t~nondet12#1=|v_thread3Thread1of1ForFork2_#t~nondet12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~nondet12#1=|v_thread3Thread1of1ForFork2_#t~nondet12#1_3|, #race~result_8~0=|v_#race~result_8~0_1|} AuxVars[] AssignedVars[#race~result_8~0][189], [395#(= |#race~length_4~0| 0), 436#true, 376#(= |#race~length_2~0| 0), Black: 388#true, 117#L76-7true, Black: 393#true, 440#true, 277#L55-26true, 381#(= |#race~to_int_1~0| 0), Black: 369#true, 390#(= |#race~to_int_3~0| 0), 404#(= |#race~to_int_5~0| 0), Black: 402#true, 412#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 423#(and (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) |ULTIMATE.start_main_~#t2~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t2~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ |ULTIMATE.start_main_~#t2~0#1.offset| 1)) 0) (= 0 (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t2~0#1.offset|)))), Black: 374#true, 371#(= |#race~length_0~0| 0), Black: 379#true]) [2022-11-18 21:10:50,179 INFO L383 tUnfolder$Statistics]: this new event has 196 ancestors and is cut-off event [2022-11-18 21:10:50,180 INFO L386 tUnfolder$Statistics]: existing Event has 196 ancestors and is cut-off event [2022-11-18 21:10:50,180 INFO L386 tUnfolder$Statistics]: existing Event has 224 ancestors and is cut-off event [2022-11-18 21:10:50,180 INFO L386 tUnfolder$Statistics]: existing Event has 196 ancestors and is cut-off event [2022-11-18 21:10:50,194 INFO L130 PetriNetUnfolder]: 89/1788 cut-off events. [2022-11-18 21:10:50,194 INFO L131 PetriNetUnfolder]: For 53/69 co-relation queries the response was YES. [2022-11-18 21:10:50,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2156 conditions, 1788 events. 89/1788 cut-off events. For 53/69 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 13961 event pairs, 36 based on Foata normal form. 5/1680 useless extension candidates. Maximal degree in co-relation 2082. Up to 159 conditions per place. [2022-11-18 21:10:50,210 INFO L137 encePairwiseOnDemand]: 344/347 looper letters, 0 selfloop transitions, 0 changer transitions 296/296 dead transitions. [2022-11-18 21:10:50,210 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 296 transitions, 701 flow [2022-11-18 21:10:50,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:10:50,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:10:50,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 982 transitions. [2022-11-18 21:10:50,213 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9433237271853987 [2022-11-18 21:10:50,213 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 982 transitions. [2022-11-18 21:10:50,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 982 transitions. [2022-11-18 21:10:50,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:10:50,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 982 transitions. [2022-11-18 21:10:50,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:50,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:50,218 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:50,219 INFO L175 Difference]: Start difference. First operand has 305 places, 298 transitions, 683 flow. Second operand 3 states and 982 transitions. [2022-11-18 21:10:50,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 296 transitions, 701 flow [2022-11-18 21:10:50,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 296 transitions, 700 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 21:10:50,223 INFO L231 Difference]: Finished difference. Result has 304 places, 0 transitions, 0 flow [2022-11-18 21:10:50,223 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=304, PETRI_TRANSITIONS=0} [2022-11-18 21:10:50,225 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -14 predicate places. [2022-11-18 21:10:50,225 INFO L495 AbstractCegarLoop]: Abstraction has has 304 places, 0 transitions, 0 flow [2022-11-18 21:10:50,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 326.3333333333333) internal successors, (979), 3 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:50,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (52 of 53 remaining) [2022-11-18 21:10:50,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2022-11-18 21:10:50,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2022-11-18 21:10:50,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2022-11-18 21:10:50,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2022-11-18 21:10:50,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2022-11-18 21:10:50,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (46 of 53 remaining) [2022-11-18 21:10:50,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2022-11-18 21:10:50,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2022-11-18 21:10:50,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2022-11-18 21:10:50,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2022-11-18 21:10:50,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2022-11-18 21:10:50,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2022-11-18 21:10:50,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2022-11-18 21:10:50,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2022-11-18 21:10:50,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2022-11-18 21:10:50,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2022-11-18 21:10:50,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2022-11-18 21:10:50,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2022-11-18 21:10:50,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2022-11-18 21:10:50,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2022-11-18 21:10:50,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2022-11-18 21:10:50,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2022-11-18 21:10:50,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2022-11-18 21:10:50,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2022-11-18 21:10:50,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2022-11-18 21:10:50,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2022-11-18 21:10:50,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2022-11-18 21:10:50,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2022-11-18 21:10:50,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2022-11-18 21:10:50,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2022-11-18 21:10:50,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2022-11-18 21:10:50,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 53 remaining) [2022-11-18 21:10:50,239 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 53 remaining) [2022-11-18 21:10:50,239 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 53 remaining) [2022-11-18 21:10:50,239 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2022-11-18 21:10:50,239 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2022-11-18 21:10:50,239 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2022-11-18 21:10:50,240 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2022-11-18 21:10:50,240 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2022-11-18 21:10:50,240 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2022-11-18 21:10:50,240 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2022-11-18 21:10:50,240 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2022-11-18 21:10:50,240 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2022-11-18 21:10:50,241 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2022-11-18 21:10:50,241 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2022-11-18 21:10:50,241 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2022-11-18 21:10:50,241 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2022-11-18 21:10:50,241 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2022-11-18 21:10:50,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2022-11-18 21:10:50,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2022-11-18 21:10:50,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2022-11-18 21:10:50,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2022-11-18 21:10:50,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-18 21:10:50,243 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:10:50,251 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 21:10:50,251 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 21:10:50,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:10:50 BasicIcfg [2022-11-18 21:10:50,257 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 21:10:50,257 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 21:10:50,257 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 21:10:50,258 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 21:10:50,258 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:10:38" (3/4) ... [2022-11-18 21:10:50,261 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 21:10:50,267 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-18 21:10:50,267 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-18 21:10:50,267 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-18 21:10:50,274 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-18 21:10:50,275 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 21:10:50,275 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 21:10:50,275 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 21:10:50,342 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a93db5f-05f9-45be-87a5-6d3add20dbf0/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 21:10:50,343 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 21:10:50,344 INFO L158 Benchmark]: Toolchain (without parser) took 12969.09ms. Allocated memory was 94.4MB in the beginning and 553.6MB in the end (delta: 459.3MB). Free memory was 57.9MB in the beginning and 217.7MB in the end (delta: -159.8MB). Peak memory consumption was 298.9MB. Max. memory is 16.1GB. [2022-11-18 21:10:50,344 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 94.4MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:10:50,344 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.93ms. Allocated memory is still 94.4MB. Free memory was 57.7MB in the beginning and 69.5MB in the end (delta: -11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 21:10:50,345 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.64ms. Allocated memory is still 94.4MB. Free memory was 69.5MB in the beginning and 66.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 21:10:50,345 INFO L158 Benchmark]: Boogie Preprocessor took 37.06ms. Allocated memory is still 94.4MB. Free memory was 66.7MB in the beginning and 64.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:10:50,345 INFO L158 Benchmark]: RCFGBuilder took 835.95ms. Allocated memory is still 94.4MB. Free memory was 64.8MB in the beginning and 40.5MB in the end (delta: 24.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-18 21:10:50,346 INFO L158 Benchmark]: TraceAbstraction took 11533.15ms. Allocated memory was 94.4MB in the beginning and 553.6MB in the end (delta: 459.3MB). Free memory was 40.0MB in the beginning and 221.9MB in the end (delta: -181.9MB). Peak memory consumption was 280.4MB. Max. memory is 16.1GB. [2022-11-18 21:10:50,346 INFO L158 Benchmark]: Witness Printer took 85.43ms. Allocated memory is still 553.6MB. Free memory was 221.9MB in the beginning and 217.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 21:10:50,348 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 94.4MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 396.93ms. Allocated memory is still 94.4MB. Free memory was 57.7MB in the beginning and 69.5MB in the end (delta: -11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.64ms. Allocated memory is still 94.4MB. Free memory was 69.5MB in the beginning and 66.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.06ms. Allocated memory is still 94.4MB. Free memory was 66.7MB in the beginning and 64.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 835.95ms. Allocated memory is still 94.4MB. Free memory was 64.8MB in the beginning and 40.5MB in the end (delta: 24.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 11533.15ms. Allocated memory was 94.4MB in the beginning and 553.6MB in the end (delta: 459.3MB). Free memory was 40.0MB in the beginning and 221.9MB in the end (delta: -181.9MB). Peak memory consumption was 280.4MB. Max. memory is 16.1GB. * Witness Printer took 85.43ms. Allocated memory is still 553.6MB. Free memory was 221.9MB in the beginning and 217.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 507 locations, 53 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 11.3s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 99 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 99 mSDsluCounter, 175 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 464 IncrementalHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 175 mSDtfsCounter, 464 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=697occurred in iteration=15, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1843 NumberOfCodeBlocks, 1843 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1822 ConstructedInterpolants, 0 QuantifiedInterpolants, 2101 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 32 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 21:10:50,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a93db5f-05f9-45be-87a5-6d3add20dbf0/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE