./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/bench-exp2x9.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_5f4fe912-41fc-4784-91c8-09f9fccbfe97/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4fe912-41fc-4784-91c8-09f9fccbfe97/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_5f4fe912-41fc-4784-91c8-09f9fccbfe97/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4fe912-41fc-4784-91c8-09f9fccbfe97/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/bench-exp2x9.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4fe912-41fc-4784-91c8-09f9fccbfe97/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_5f4fe912-41fc-4784-91c8-09f9fccbfe97/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 d6a1dd92aa2998cfb1326128fd549d301e029b328accb048c4d2ec692e416e63 --- 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 18:46:33,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:46:33,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:46:33,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:46:33,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:46:33,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:46:33,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:46:33,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:46:33,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:46:33,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:46:33,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:46:33,097 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:46:33,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:46:33,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:46:33,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:46:33,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:46:33,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:46:33,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:46:33,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:46:33,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:46:33,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:46:33,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:46:33,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:46:33,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:46:33,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:46:33,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:46:33,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:46:33,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:46:33,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:46:33,120 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:46:33,121 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:46:33,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:46:33,122 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:46:33,123 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:46:33,124 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:46:33,124 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:46:33,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:46:33,125 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:46:33,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:46:33,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:46:33,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:46:33,137 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4fe912-41fc-4784-91c8-09f9fccbfe97/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 18:46:33,183 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:46:33,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:46:33,184 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:46:33,184 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:46:33,185 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:46:33,185 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:46:33,186 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:46:33,186 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:46:33,186 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:46:33,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:46:33,187 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:46:33,187 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:46:33,188 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:46:33,188 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:46:33,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:46:33,188 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:46:33,188 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:46:33,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:46:33,189 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 18:46:33,189 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:46:33,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:46:33,189 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:46:33,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:46:33,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:46:33,190 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:46:33,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:46:33,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:46:33,192 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:46:33,192 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:46:33,192 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:46:33,192 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:46:33,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:46:33,193 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:46:33,193 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:46:33,193 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:46:33,193 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_5f4fe912-41fc-4784-91c8-09f9fccbfe97/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4fe912-41fc-4784-91c8-09f9fccbfe97/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6a1dd92aa2998cfb1326128fd549d301e029b328accb048c4d2ec692e416e63 [2022-11-18 18:46:33,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:46:33,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:46:33,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:46:33,502 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:46:33,504 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:46:33,505 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4fe912-41fc-4784-91c8-09f9fccbfe97/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/bench-exp2x9.wvr.c [2022-11-18 18:46:33,573 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4fe912-41fc-4784-91c8-09f9fccbfe97/bin/uautomizer-TMbwUNV5ro/data/a4ece3985/3cda5332f42148778487822bbe0407b1/FLAG9fadff790 [2022-11-18 18:46:33,998 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:46:33,998 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4fe912-41fc-4784-91c8-09f9fccbfe97/sv-benchmarks/c/weaver/bench-exp2x9.wvr.c [2022-11-18 18:46:34,008 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4fe912-41fc-4784-91c8-09f9fccbfe97/bin/uautomizer-TMbwUNV5ro/data/a4ece3985/3cda5332f42148778487822bbe0407b1/FLAG9fadff790 [2022-11-18 18:46:34,379 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4fe912-41fc-4784-91c8-09f9fccbfe97/bin/uautomizer-TMbwUNV5ro/data/a4ece3985/3cda5332f42148778487822bbe0407b1 [2022-11-18 18:46:34,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:46:34,385 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:46:34,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:46:34,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:46:34,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:46:34,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:46:34" (1/1) ... [2022-11-18 18:46:34,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6770caa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:34, skipping insertion in model container [2022-11-18 18:46:34,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:46:34" (1/1) ... [2022-11-18 18:46:34,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:46:34,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:46:34,666 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_5f4fe912-41fc-4784-91c8-09f9fccbfe97/sv-benchmarks/c/weaver/bench-exp2x9.wvr.c[2669,2682] [2022-11-18 18:46:34,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:46:34,675 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:46:34,711 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_5f4fe912-41fc-4784-91c8-09f9fccbfe97/sv-benchmarks/c/weaver/bench-exp2x9.wvr.c[2669,2682] [2022-11-18 18:46:34,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:46:34,726 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:46:34,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:34 WrapperNode [2022-11-18 18:46:34,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:46:34,728 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:46:34,728 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:46:34,728 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:46:34,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:34" (1/1) ... [2022-11-18 18:46:34,750 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:34" (1/1) ... [2022-11-18 18:46:34,792 INFO L138 Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 167 [2022-11-18 18:46:34,792 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:46:34,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:46:34,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:46:34,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:46:34,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:34" (1/1) ... [2022-11-18 18:46:34,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:34" (1/1) ... [2022-11-18 18:46:34,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:34" (1/1) ... [2022-11-18 18:46:34,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:34" (1/1) ... [2022-11-18 18:46:34,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:34" (1/1) ... [2022-11-18 18:46:34,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:34" (1/1) ... [2022-11-18 18:46:34,855 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:34" (1/1) ... [2022-11-18 18:46:34,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:34" (1/1) ... [2022-11-18 18:46:34,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:46:34,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:46:34,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:46:34,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:46:34,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:34" (1/1) ... [2022-11-18 18:46:34,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:46:34,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4fe912-41fc-4784-91c8-09f9fccbfe97/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:46:34,903 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4fe912-41fc-4784-91c8-09f9fccbfe97/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:46:34,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4fe912-41fc-4784-91c8-09f9fccbfe97/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:46:34,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:46:34,948 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 18:46:34,948 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 18:46:34,948 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 18:46:34,948 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 18:46:34,949 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 18:46:34,949 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 18:46:34,949 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-18 18:46:34,949 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-18 18:46:34,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:46:34,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:46:34,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:46:34,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:46:34,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:46:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:46:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:46:34,951 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 18:46:35,069 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:46:35,071 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:46:35,893 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:46:35,907 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:46:35,909 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-18 18:46:35,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:46:35 BoogieIcfgContainer [2022-11-18 18:46:35,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:46:35,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:46:35,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:46:35,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:46:35,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:46:34" (1/3) ... [2022-11-18 18:46:35,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45107e64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:46:35, skipping insertion in model container [2022-11-18 18:46:35,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:34" (2/3) ... [2022-11-18 18:46:35,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45107e64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:46:35, skipping insertion in model container [2022-11-18 18:46:35,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:46:35" (3/3) ... [2022-11-18 18:46:35,926 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x9.wvr.c [2022-11-18 18:46:35,940 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 18:46:35,956 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:46:35,956 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 111 error locations. [2022-11-18 18:46:35,956 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 18:46:36,143 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-18 18:46:36,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 578 places, 579 transitions, 1190 flow [2022-11-18 18:46:36,584 INFO L130 PetriNetUnfolder]: 14/575 cut-off events. [2022-11-18 18:46:36,585 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 18:46:36,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 592 conditions, 575 events. 14/575 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1939 event pairs, 0 based on Foata normal form. 0/450 useless extension candidates. Maximal degree in co-relation 419. Up to 2 conditions per place. [2022-11-18 18:46:36,611 INFO L82 GeneralOperation]: Start removeDead. Operand has 578 places, 579 transitions, 1190 flow [2022-11-18 18:46:36,632 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 551 places, 550 transitions, 1124 flow [2022-11-18 18:46:36,648 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:46:36,659 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;@50de4578, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:46:36,660 INFO L358 AbstractCegarLoop]: Starting to check reachability of 207 error locations. [2022-11-18 18:46:36,664 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2022-11-18 18:46:36,664 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:46:36,664 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:46:36,665 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] [2022-11-18 18:46:36,666 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:46:36,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:36,674 INFO L85 PathProgramCache]: Analyzing trace with hash 642133218, now seen corresponding path program 1 times [2022-11-18 18:46:36,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:36,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288301378] [2022-11-18 18:46:36,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:36,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:36,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:36,908 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 18:46:36,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:36,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288301378] [2022-11-18 18:46:36,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288301378] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:46:36,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:46:36,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:46:36,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386113960] [2022-11-18 18:46:36,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:46:36,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:46:36,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:36,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:46:36,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:46:36,960 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 483 out of 579 [2022-11-18 18:46:36,969 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 551 places, 550 transitions, 1124 flow. Second operand has 3 states, 3 states have (on average 484.3333333333333) internal successors, (1453), 3 states have internal predecessors, (1453), 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 18:46:36,969 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:46:36,970 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 483 of 579 [2022-11-18 18:46:36,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:46:37,703 INFO L130 PetriNetUnfolder]: 208/1024 cut-off events. [2022-11-18 18:46:37,703 INFO L131 PetriNetUnfolder]: For 214/221 co-relation queries the response was YES. [2022-11-18 18:46:37,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1922 conditions, 1024 events. 208/1024 cut-off events. For 214/221 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6548 event pairs, 198 based on Foata normal form. 409/1235 useless extension candidates. Maximal degree in co-relation 1750. Up to 483 conditions per place. [2022-11-18 18:46:37,758 INFO L137 encePairwiseOnDemand]: 571/579 looper letters, 86 selfloop transitions, 2 changer transitions 1/544 dead transitions. [2022-11-18 18:46:37,759 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 552 places, 544 transitions, 1288 flow [2022-11-18 18:46:37,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:46:37,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:46:37,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1543 transitions. [2022-11-18 18:46:37,783 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8883131836499712 [2022-11-18 18:46:37,784 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1543 transitions. [2022-11-18 18:46:37,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1543 transitions. [2022-11-18 18:46:37,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:46:37,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1543 transitions. [2022-11-18 18:46:37,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 514.3333333333334) internal successors, (1543), 3 states have internal predecessors, (1543), 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 18:46:37,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:46:37,812 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:46:37,815 INFO L175 Difference]: Start difference. First operand has 551 places, 550 transitions, 1124 flow. Second operand 3 states and 1543 transitions. [2022-11-18 18:46:37,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 552 places, 544 transitions, 1288 flow [2022-11-18 18:46:37,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 544 transitions, 1272 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-18 18:46:37,843 INFO L231 Difference]: Finished difference. Result has 544 places, 543 transitions, 1098 flow [2022-11-18 18:46:37,845 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1096, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=544, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=542, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1098, PETRI_PLACES=544, PETRI_TRANSITIONS=543} [2022-11-18 18:46:37,851 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -7 predicate places. [2022-11-18 18:46:37,852 INFO L495 AbstractCegarLoop]: Abstraction has has 544 places, 543 transitions, 1098 flow [2022-11-18 18:46:37,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 484.3333333333333) internal successors, (1453), 3 states have internal predecessors, (1453), 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 18:46:37,853 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:46:37,854 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:46:37,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:46:37,855 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:46:37,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:37,856 INFO L85 PathProgramCache]: Analyzing trace with hash -178721102, now seen corresponding path program 1 times [2022-11-18 18:46:37,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:37,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921772203] [2022-11-18 18:46:37,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:37,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:37,976 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 18:46:37,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:37,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921772203] [2022-11-18 18:46:37,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921772203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:46:37,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:46:37,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:46:37,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814227472] [2022-11-18 18:46:37,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:46:37,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:46:37,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:37,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:46:37,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:46:38,029 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 486 out of 579 [2022-11-18 18:46:38,031 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 543 transitions, 1098 flow. Second operand has 3 states, 3 states have (on average 487.3333333333333) internal successors, (1462), 3 states have internal predecessors, (1462), 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 18:46:38,031 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:46:38,031 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 486 of 579 [2022-11-18 18:46:38,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:46:38,765 INFO L130 PetriNetUnfolder]: 208/1022 cut-off events. [2022-11-18 18:46:38,766 INFO L131 PetriNetUnfolder]: For 70/76 co-relation queries the response was YES. [2022-11-18 18:46:38,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1644 conditions, 1022 events. 208/1022 cut-off events. For 70/76 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7209 event pairs, 198 based on Foata normal form. 0/822 useless extension candidates. Maximal degree in co-relation 1611. Up to 480 conditions per place. [2022-11-18 18:46:38,818 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 83 selfloop transitions, 2 changer transitions 0/542 dead transitions. [2022-11-18 18:46:38,819 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 542 transitions, 1266 flow [2022-11-18 18:46:38,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:46:38,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:46:38,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1544 transitions. [2022-11-18 18:46:38,824 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2022-11-18 18:46:38,824 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1544 transitions. [2022-11-18 18:46:38,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1544 transitions. [2022-11-18 18:46:38,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:46:38,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1544 transitions. [2022-11-18 18:46:38,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 514.6666666666666) internal successors, (1544), 3 states have internal predecessors, (1544), 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 18:46:38,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:46:38,834 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:46:38,835 INFO L175 Difference]: Start difference. First operand has 544 places, 543 transitions, 1098 flow. Second operand 3 states and 1544 transitions. [2022-11-18 18:46:38,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 542 transitions, 1266 flow [2022-11-18 18:46:38,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 542 transitions, 1262 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:46:38,849 INFO L231 Difference]: Finished difference. Result has 542 places, 542 transitions, 1096 flow [2022-11-18 18:46:38,850 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1092, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=542, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=540, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1096, PETRI_PLACES=542, PETRI_TRANSITIONS=542} [2022-11-18 18:46:38,851 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -9 predicate places. [2022-11-18 18:46:38,852 INFO L495 AbstractCegarLoop]: Abstraction has has 542 places, 542 transitions, 1096 flow [2022-11-18 18:46:38,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 487.3333333333333) internal successors, (1462), 3 states have internal predecessors, (1462), 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 18:46:38,853 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:46:38,854 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] [2022-11-18 18:46:38,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:46:38,854 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:46:38,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:38,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1906417989, now seen corresponding path program 1 times [2022-11-18 18:46:38,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:38,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571736365] [2022-11-18 18:46:38,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:38,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:38,959 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 18:46:38,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:38,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571736365] [2022-11-18 18:46:38,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571736365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:46:38,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:46:38,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:46:38,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810560535] [2022-11-18 18:46:38,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:46:38,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:46:38,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:38,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:46:38,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:46:38,967 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 483 out of 579 [2022-11-18 18:46:38,969 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 542 transitions, 1096 flow. Second operand has 3 states, 3 states have (on average 484.3333333333333) internal successors, (1453), 3 states have internal predecessors, (1453), 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 18:46:38,969 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:46:38,969 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 483 of 579 [2022-11-18 18:46:38,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:46:39,731 INFO L130 PetriNetUnfolder]: 208/1021 cut-off events. [2022-11-18 18:46:39,732 INFO L131 PetriNetUnfolder]: For 136/142 co-relation queries the response was YES. [2022-11-18 18:46:39,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1580 conditions, 1021 events. 208/1021 cut-off events. For 136/142 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 7290 event pairs, 198 based on Foata normal form. 0/819 useless extension candidates. Maximal degree in co-relation 1541. Up to 483 conditions per place. [2022-11-18 18:46:39,773 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 86 selfloop transitions, 2 changer transitions 0/541 dead transitions. [2022-11-18 18:46:39,773 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 543 places, 541 transitions, 1270 flow [2022-11-18 18:46:39,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:46:39,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:46:39,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1538 transitions. [2022-11-18 18:46:39,779 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8854346574553829 [2022-11-18 18:46:39,779 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1538 transitions. [2022-11-18 18:46:39,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1538 transitions. [2022-11-18 18:46:39,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:46:39,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1538 transitions. [2022-11-18 18:46:39,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 512.6666666666666) internal successors, (1538), 3 states have internal predecessors, (1538), 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 18:46:39,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:46:39,789 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:46:39,789 INFO L175 Difference]: Start difference. First operand has 542 places, 542 transitions, 1096 flow. Second operand 3 states and 1538 transitions. [2022-11-18 18:46:39,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 543 places, 541 transitions, 1270 flow [2022-11-18 18:46:39,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 541 places, 541 transitions, 1266 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:46:39,799 INFO L231 Difference]: Finished difference. Result has 541 places, 541 transitions, 1094 flow [2022-11-18 18:46:39,800 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1090, PETRI_DIFFERENCE_MINUEND_PLACES=539, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=541, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=539, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1094, PETRI_PLACES=541, PETRI_TRANSITIONS=541} [2022-11-18 18:46:39,802 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -10 predicate places. [2022-11-18 18:46:39,802 INFO L495 AbstractCegarLoop]: Abstraction has has 541 places, 541 transitions, 1094 flow [2022-11-18 18:46:39,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 484.3333333333333) internal successors, (1453), 3 states have internal predecessors, (1453), 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 18:46:39,804 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:46:39,804 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 18:46:39,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:46:39,804 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:46:39,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:39,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1905793287, now seen corresponding path program 1 times [2022-11-18 18:46:39,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:39,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332846892] [2022-11-18 18:46:39,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:39,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:39,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:39,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:46:39,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:39,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332846892] [2022-11-18 18:46:39,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332846892] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:46:39,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:46:39,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:46:39,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677340480] [2022-11-18 18:46:39,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:46:39,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:46:39,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:39,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:46:39,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:46:39,870 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 486 out of 579 [2022-11-18 18:46:39,872 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 541 transitions, 1094 flow. Second operand has 3 states, 3 states have (on average 487.3333333333333) internal successors, (1462), 3 states have internal predecessors, (1462), 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 18:46:39,872 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:46:39,872 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 486 of 579 [2022-11-18 18:46:39,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:46:40,437 INFO L130 PetriNetUnfolder]: 208/1020 cut-off events. [2022-11-18 18:46:40,437 INFO L131 PetriNetUnfolder]: For 202/208 co-relation queries the response was YES. [2022-11-18 18:46:40,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1509 conditions, 1020 events. 208/1020 cut-off events. For 202/208 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 7516 event pairs, 198 based on Foata normal form. 0/817 useless extension candidates. Maximal degree in co-relation 1464. Up to 479 conditions per place. [2022-11-18 18:46:40,467 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 82 selfloop transitions, 2 changer transitions 0/540 dead transitions. [2022-11-18 18:46:40,467 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 540 transitions, 1260 flow [2022-11-18 18:46:40,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:46:40,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:46:40,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1543 transitions. [2022-11-18 18:46:40,471 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8883131836499712 [2022-11-18 18:46:40,472 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1543 transitions. [2022-11-18 18:46:40,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1543 transitions. [2022-11-18 18:46:40,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:46:40,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1543 transitions. [2022-11-18 18:46:40,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 514.3333333333334) internal successors, (1543), 3 states have internal predecessors, (1543), 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 18:46:40,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:46:40,482 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:46:40,482 INFO L175 Difference]: Start difference. First operand has 541 places, 541 transitions, 1094 flow. Second operand 3 states and 1543 transitions. [2022-11-18 18:46:40,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 540 transitions, 1260 flow [2022-11-18 18:46:40,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 540 places, 540 transitions, 1256 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:46:40,492 INFO L231 Difference]: Finished difference. Result has 540 places, 540 transitions, 1092 flow [2022-11-18 18:46:40,493 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1088, PETRI_DIFFERENCE_MINUEND_PLACES=538, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=540, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=538, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1092, PETRI_PLACES=540, PETRI_TRANSITIONS=540} [2022-11-18 18:46:40,494 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -11 predicate places. [2022-11-18 18:46:40,494 INFO L495 AbstractCegarLoop]: Abstraction has has 540 places, 540 transitions, 1092 flow [2022-11-18 18:46:40,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 487.3333333333333) internal successors, (1462), 3 states have internal predecessors, (1462), 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 18:46:40,496 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:46:40,496 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] [2022-11-18 18:46:40,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:46:40,496 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:46:40,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:40,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1236202634, now seen corresponding path program 1 times [2022-11-18 18:46:40,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:40,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395317328] [2022-11-18 18:46:40,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:40,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:40,575 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 18:46:40,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:40,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395317328] [2022-11-18 18:46:40,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395317328] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:46:40,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:46:40,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:46:40,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193831740] [2022-11-18 18:46:40,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:46:40,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:46:40,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:40,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:46:40,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:46:40,580 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 546 out of 579 [2022-11-18 18:46:40,582 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 540 places, 540 transitions, 1092 flow. Second operand has 3 states, 3 states have (on average 547.3333333333334) internal successors, (1642), 3 states have internal predecessors, (1642), 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 18:46:40,582 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:46:40,582 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 546 of 579 [2022-11-18 18:46:40,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:46:45,166 INFO L130 PetriNetUnfolder]: 1030/16607 cut-off events. [2022-11-18 18:46:45,166 INFO L131 PetriNetUnfolder]: For 85/193 co-relation queries the response was YES. [2022-11-18 18:46:45,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17982 conditions, 16607 events. 1030/16607 cut-off events. For 85/193 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 223638 event pairs, 855 based on Foata normal form. 0/12398 useless extension candidates. Maximal degree in co-relation 17931. Up to 1284 conditions per place. [2022-11-18 18:46:45,693 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 23 selfloop transitions, 2 changer transitions 0/539 dead transitions. [2022-11-18 18:46:45,694 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 539 transitions, 1140 flow [2022-11-18 18:46:45,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:46:45,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:46:45,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1664 transitions. [2022-11-18 18:46:45,699 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9579735175590098 [2022-11-18 18:46:45,699 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1664 transitions. [2022-11-18 18:46:45,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1664 transitions. [2022-11-18 18:46:45,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:46:45,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1664 transitions. [2022-11-18 18:46:45,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 554.6666666666666) internal successors, (1664), 3 states have internal predecessors, (1664), 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 18:46:45,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:46:45,711 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:46:45,711 INFO L175 Difference]: Start difference. First operand has 540 places, 540 transitions, 1092 flow. Second operand 3 states and 1664 transitions. [2022-11-18 18:46:45,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 539 transitions, 1140 flow [2022-11-18 18:46:45,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 539 places, 539 transitions, 1136 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:46:45,723 INFO L231 Difference]: Finished difference. Result has 539 places, 539 transitions, 1090 flow [2022-11-18 18:46:45,724 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1086, PETRI_DIFFERENCE_MINUEND_PLACES=537, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=537, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1090, PETRI_PLACES=539, PETRI_TRANSITIONS=539} [2022-11-18 18:46:45,725 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -12 predicate places. [2022-11-18 18:46:45,725 INFO L495 AbstractCegarLoop]: Abstraction has has 539 places, 539 transitions, 1090 flow [2022-11-18 18:46:45,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 547.3333333333334) internal successors, (1642), 3 states have internal predecessors, (1642), 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 18:46:45,727 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:46:45,727 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] [2022-11-18 18:46:45,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:46:45,728 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:46:45,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:45,728 INFO L85 PathProgramCache]: Analyzing trace with hash -921526617, now seen corresponding path program 1 times [2022-11-18 18:46:45,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:45,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088877776] [2022-11-18 18:46:45,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:45,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:45,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:45,821 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 18:46:45,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:45,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088877776] [2022-11-18 18:46:45,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088877776] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:46:45,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:46:45,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:46:45,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945564504] [2022-11-18 18:46:45,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:46:45,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:46:45,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:45,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:46:45,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:46:45,828 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 486 out of 579 [2022-11-18 18:46:45,831 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 539 transitions, 1090 flow. Second operand has 3 states, 3 states have (on average 487.3333333333333) internal successors, (1462), 3 states have internal predecessors, (1462), 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 18:46:45,831 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:46:45,831 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 486 of 579 [2022-11-18 18:46:45,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:46:46,315 INFO L130 PetriNetUnfolder]: 163/915 cut-off events. [2022-11-18 18:46:46,315 INFO L131 PetriNetUnfolder]: For 4/9 co-relation queries the response was YES. [2022-11-18 18:46:46,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1454 conditions, 915 events. 163/915 cut-off events. For 4/9 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 5612 event pairs, 90 based on Foata normal form. 0/788 useless extension candidates. Maximal degree in co-relation 1396. Up to 228 conditions per place. [2022-11-18 18:46:46,351 INFO L137 encePairwiseOnDemand]: 546/579 looper letters, 56 selfloop transitions, 15 changer transitions 0/525 dead transitions. [2022-11-18 18:46:46,351 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 523 places, 525 transitions, 1207 flow [2022-11-18 18:46:46,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:46:46,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:46:46,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1547 transitions. [2022-11-18 18:46:46,357 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8906160046056419 [2022-11-18 18:46:46,357 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1547 transitions. [2022-11-18 18:46:46,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1547 transitions. [2022-11-18 18:46:46,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:46:46,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1547 transitions. [2022-11-18 18:46:46,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 515.6666666666666) internal successors, (1547), 3 states have internal predecessors, (1547), 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 18:46:46,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:46:46,371 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:46:46,371 INFO L175 Difference]: Start difference. First operand has 539 places, 539 transitions, 1090 flow. Second operand 3 states and 1547 transitions. [2022-11-18 18:46:46,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 523 places, 525 transitions, 1207 flow [2022-11-18 18:46:46,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 521 places, 525 transitions, 1203 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:46:46,387 INFO L231 Difference]: Finished difference. Result has 522 places, 522 transitions, 1099 flow [2022-11-18 18:46:46,388 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1050, PETRI_DIFFERENCE_MINUEND_PLACES=519, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=506, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1099, PETRI_PLACES=522, PETRI_TRANSITIONS=522} [2022-11-18 18:46:46,391 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -29 predicate places. [2022-11-18 18:46:46,391 INFO L495 AbstractCegarLoop]: Abstraction has has 522 places, 522 transitions, 1099 flow [2022-11-18 18:46:46,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 487.3333333333333) internal successors, (1462), 3 states have internal predecessors, (1462), 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 18:46:46,393 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:46:46,394 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] [2022-11-18 18:46:46,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:46:46,395 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:46:46,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:46,396 INFO L85 PathProgramCache]: Analyzing trace with hash -823776531, now seen corresponding path program 1 times [2022-11-18 18:46:46,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:46,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340149166] [2022-11-18 18:46:46,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:46,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:46,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:46,495 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 18:46:46,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:46,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340149166] [2022-11-18 18:46:46,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340149166] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:46:46,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:46:46,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:46:46,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600651053] [2022-11-18 18:46:46,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:46:46,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:46:46,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:46,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:46:46,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:46:46,511 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 489 out of 579 [2022-11-18 18:46:46,514 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 522 places, 522 transitions, 1099 flow. Second operand has 3 states, 3 states have (on average 490.3333333333333) internal successors, (1471), 3 states have internal predecessors, (1471), 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 18:46:46,514 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:46:46,514 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 489 of 579 [2022-11-18 18:46:46,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:46:47,096 INFO L130 PetriNetUnfolder]: 163/899 cut-off events. [2022-11-18 18:46:47,096 INFO L131 PetriNetUnfolder]: For 62/66 co-relation queries the response was YES. [2022-11-18 18:46:47,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1407 conditions, 899 events. 163/899 cut-off events. For 62/66 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 5646 event pairs, 90 based on Foata normal form. 0/786 useless extension candidates. Maximal degree in co-relation 1262. Up to 226 conditions per place. [2022-11-18 18:46:47,136 INFO L137 encePairwiseOnDemand]: 547/579 looper letters, 54 selfloop transitions, 15 changer transitions 0/509 dead transitions. [2022-11-18 18:46:47,136 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 509 transitions, 1214 flow [2022-11-18 18:46:47,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:46:47,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:46:47,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1553 transitions. [2022-11-18 18:46:47,140 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8940702360391479 [2022-11-18 18:46:47,140 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1553 transitions. [2022-11-18 18:46:47,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1553 transitions. [2022-11-18 18:46:47,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:46:47,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1553 transitions. [2022-11-18 18:46:47,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 517.6666666666666) internal successors, (1553), 3 states have internal predecessors, (1553), 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 18:46:47,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:46:47,150 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:46:47,150 INFO L175 Difference]: Start difference. First operand has 522 places, 522 transitions, 1099 flow. Second operand 3 states and 1553 transitions. [2022-11-18 18:46:47,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 509 transitions, 1214 flow [2022-11-18 18:46:47,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 506 places, 509 transitions, 1199 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:46:47,160 INFO L231 Difference]: Finished difference. Result has 507 places, 506 transitions, 1099 flow [2022-11-18 18:46:47,161 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1050, PETRI_DIFFERENCE_MINUEND_PLACES=504, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=505, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=490, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1099, PETRI_PLACES=507, PETRI_TRANSITIONS=506} [2022-11-18 18:46:47,162 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -44 predicate places. [2022-11-18 18:46:47,162 INFO L495 AbstractCegarLoop]: Abstraction has has 507 places, 506 transitions, 1099 flow [2022-11-18 18:46:47,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 490.3333333333333) internal successors, (1471), 3 states have internal predecessors, (1471), 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 18:46:47,163 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:46:47,163 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] [2022-11-18 18:46:47,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 18:46:47,164 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:46:47,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:47,164 INFO L85 PathProgramCache]: Analyzing trace with hash 166114238, now seen corresponding path program 1 times [2022-11-18 18:46:47,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:47,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380648943] [2022-11-18 18:46:47,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:47,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:47,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:47,205 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 18:46:47,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:47,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380648943] [2022-11-18 18:46:47,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380648943] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:46:47,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:46:47,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:46:47,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424535064] [2022-11-18 18:46:47,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:46:47,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:46:47,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:47,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:46:47,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:46:47,210 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 486 out of 579 [2022-11-18 18:46:47,212 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 506 transitions, 1099 flow. Second operand has 3 states, 3 states have (on average 487.3333333333333) internal successors, (1462), 3 states have internal predecessors, (1462), 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 18:46:47,212 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:46:47,212 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 486 of 579 [2022-11-18 18:46:47,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:46:47,845 INFO L130 PetriNetUnfolder]: 170/1198 cut-off events. [2022-11-18 18:46:47,845 INFO L131 PetriNetUnfolder]: For 122/126 co-relation queries the response was YES. [2022-11-18 18:46:47,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1722 conditions, 1198 events. 170/1198 cut-off events. For 122/126 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 8607 event pairs, 63 based on Foata normal form. 1/1059 useless extension candidates. Maximal degree in co-relation 1487. Up to 229 conditions per place. [2022-11-18 18:46:47,890 INFO L137 encePairwiseOnDemand]: 545/579 looper letters, 59 selfloop transitions, 16 changer transitions 0/496 dead transitions. [2022-11-18 18:46:47,890 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 496 transitions, 1235 flow [2022-11-18 18:46:47,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:46:47,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:46:47,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1551 transitions. [2022-11-18 18:46:47,895 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8929188255613126 [2022-11-18 18:46:47,895 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1551 transitions. [2022-11-18 18:46:47,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1551 transitions. [2022-11-18 18:46:47,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:46:47,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1551 transitions. [2022-11-18 18:46:47,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 517.0) internal successors, (1551), 3 states have internal predecessors, (1551), 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 18:46:47,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:46:47,909 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:46:47,909 INFO L175 Difference]: Start difference. First operand has 507 places, 506 transitions, 1099 flow. Second operand 3 states and 1551 transitions. [2022-11-18 18:46:47,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 496 transitions, 1235 flow [2022-11-18 18:46:47,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 490 places, 496 transitions, 1220 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:46:47,926 INFO L231 Difference]: Finished difference. Result has 491 places, 490 transitions, 1104 flow [2022-11-18 18:46:47,927 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1048, PETRI_DIFFERENCE_MINUEND_PLACES=488, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=488, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=472, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1104, PETRI_PLACES=491, PETRI_TRANSITIONS=490} [2022-11-18 18:46:47,931 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -60 predicate places. [2022-11-18 18:46:47,931 INFO L495 AbstractCegarLoop]: Abstraction has has 491 places, 490 transitions, 1104 flow [2022-11-18 18:46:47,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 487.3333333333333) internal successors, (1462), 3 states have internal predecessors, (1462), 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 18:46:47,932 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:46:47,932 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] [2022-11-18 18:46:47,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 18:46:47,932 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:46:47,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:47,933 INFO L85 PathProgramCache]: Analyzing trace with hash 722031064, now seen corresponding path program 1 times [2022-11-18 18:46:47,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:47,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006065902] [2022-11-18 18:46:47,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:47,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:48,041 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 18:46:48,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:48,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006065902] [2022-11-18 18:46:48,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006065902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:46:48,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:46:48,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:46:48,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283218402] [2022-11-18 18:46:48,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:46:48,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:46:48,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:48,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:46:48,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:46:48,047 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 552 out of 579 [2022-11-18 18:46:48,050 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 490 transitions, 1104 flow. Second operand has 4 states, 4 states have (on average 553.25) internal successors, (2213), 4 states have internal predecessors, (2213), 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 18:46:48,051 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:46:48,051 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 552 of 579 [2022-11-18 18:46:48,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:46:48,381 INFO L130 PetriNetUnfolder]: 12/837 cut-off events. [2022-11-18 18:46:48,381 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-18 18:46:48,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 977 conditions, 837 events. 12/837 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3967 event pairs, 0 based on Foata normal form. 0/731 useless extension candidates. Maximal degree in co-relation 682. Up to 27 conditions per place. [2022-11-18 18:46:48,395 INFO L137 encePairwiseOnDemand]: 573/579 looper letters, 22 selfloop transitions, 5 changer transitions 0/497 dead transitions. [2022-11-18 18:46:48,395 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 495 places, 497 transitions, 1172 flow [2022-11-18 18:46:48,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:46:48,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 18:46:48,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2788 transitions. [2022-11-18 18:46:48,406 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9630397236614853 [2022-11-18 18:46:48,407 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2788 transitions. [2022-11-18 18:46:48,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2788 transitions. [2022-11-18 18:46:48,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:46:48,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2788 transitions. [2022-11-18 18:46:48,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 557.6) internal successors, (2788), 5 states have internal predecessors, (2788), 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 18:46:48,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 579.0) internal successors, (3474), 6 states have internal predecessors, (3474), 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 18:46:48,432 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 579.0) internal successors, (3474), 6 states have internal predecessors, (3474), 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 18:46:48,433 INFO L175 Difference]: Start difference. First operand has 491 places, 490 transitions, 1104 flow. Second operand 5 states and 2788 transitions. [2022-11-18 18:46:48,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 495 places, 497 transitions, 1172 flow [2022-11-18 18:46:48,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 497 transitions, 1156 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:46:48,449 INFO L231 Difference]: Finished difference. Result has 498 places, 494 transitions, 1126 flow [2022-11-18 18:46:48,450 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1088, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=485, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1126, PETRI_PLACES=498, PETRI_TRANSITIONS=494} [2022-11-18 18:46:48,450 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -53 predicate places. [2022-11-18 18:46:48,451 INFO L495 AbstractCegarLoop]: Abstraction has has 498 places, 494 transitions, 1126 flow [2022-11-18 18:46:48,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 553.25) internal successors, (2213), 4 states have internal predecessors, (2213), 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 18:46:48,452 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:46:48,452 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] [2022-11-18 18:46:48,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 18:46:48,452 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:46:48,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:48,453 INFO L85 PathProgramCache]: Analyzing trace with hash 684487429, now seen corresponding path program 1 times [2022-11-18 18:46:48,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:48,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981254737] [2022-11-18 18:46:48,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:48,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:48,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:48,498 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 18:46:48,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:48,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981254737] [2022-11-18 18:46:48,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981254737] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:46:48,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:46:48,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:46:48,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718499068] [2022-11-18 18:46:48,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:46:48,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:46:48,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:48,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:46:48,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:46:48,503 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 489 out of 579 [2022-11-18 18:46:48,505 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 494 transitions, 1126 flow. Second operand has 3 states, 3 states have (on average 490.3333333333333) internal successors, (1471), 3 states have internal predecessors, (1471), 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 18:46:48,505 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:46:48,505 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 489 of 579 [2022-11-18 18:46:48,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:46:49,199 INFO L130 PetriNetUnfolder]: 278/1758 cut-off events. [2022-11-18 18:46:49,200 INFO L131 PetriNetUnfolder]: For 268/272 co-relation queries the response was YES. [2022-11-18 18:46:49,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2568 conditions, 1758 events. 278/1758 cut-off events. For 268/272 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 14510 event pairs, 105 based on Foata normal form. 2/1596 useless extension candidates. Maximal degree in co-relation 2071. Up to 375 conditions per place. [2022-11-18 18:46:49,244 INFO L137 encePairwiseOnDemand]: 547/579 looper letters, 55 selfloop transitions, 15 changer transitions 11/485 dead transitions. [2022-11-18 18:46:49,244 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 485 transitions, 1259 flow [2022-11-18 18:46:49,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:46:49,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:46:49,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1556 transitions. [2022-11-18 18:46:49,249 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.895797351755901 [2022-11-18 18:46:49,249 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1556 transitions. [2022-11-18 18:46:49,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1556 transitions. [2022-11-18 18:46:49,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:46:49,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1556 transitions. [2022-11-18 18:46:49,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 518.6666666666666) internal successors, (1556), 3 states have internal predecessors, (1556), 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 18:46:49,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:46:49,259 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:46:49,259 INFO L175 Difference]: Start difference. First operand has 498 places, 494 transitions, 1126 flow. Second operand 3 states and 1556 transitions. [2022-11-18 18:46:49,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 485 transitions, 1259 flow [2022-11-18 18:46:49,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 485 transitions, 1259 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:46:49,270 INFO L231 Difference]: Finished difference. Result has 484 places, 467 transitions, 1118 flow [2022-11-18 18:46:49,271 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1092, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=477, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1118, PETRI_PLACES=484, PETRI_TRANSITIONS=467} [2022-11-18 18:46:49,271 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -67 predicate places. [2022-11-18 18:46:49,271 INFO L495 AbstractCegarLoop]: Abstraction has has 484 places, 467 transitions, 1118 flow [2022-11-18 18:46:49,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 490.3333333333333) internal successors, (1471), 3 states have internal predecessors, (1471), 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 18:46:49,272 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:46:49,272 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 18:46:49,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 18:46:49,273 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:46:49,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:49,274 INFO L85 PathProgramCache]: Analyzing trace with hash -968945318, now seen corresponding path program 1 times [2022-11-18 18:46:49,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:49,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77910994] [2022-11-18 18:46:49,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:49,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:49,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:49,333 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 18:46:49,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:49,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77910994] [2022-11-18 18:46:49,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77910994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:46:49,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:46:49,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:46:49,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60285295] [2022-11-18 18:46:49,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:46:49,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:46:49,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:49,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:46:49,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:46:49,337 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 549 out of 579 [2022-11-18 18:46:49,339 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 484 places, 467 transitions, 1118 flow. Second operand has 3 states, 3 states have (on average 550.6666666666666) internal successors, (1652), 3 states have internal predecessors, (1652), 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 18:46:49,339 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:46:49,340 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 549 of 579 [2022-11-18 18:46:49,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:46:52,606 INFO L130 PetriNetUnfolder]: 733/14256 cut-off events. [2022-11-18 18:46:52,606 INFO L131 PetriNetUnfolder]: For 439/534 co-relation queries the response was YES. [2022-11-18 18:46:52,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18010 conditions, 14256 events. 733/14256 cut-off events. For 439/534 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 186286 event pairs, 276 based on Foata normal form. 3/12708 useless extension candidates. Maximal degree in co-relation 13568. Up to 929 conditions per place. [2022-11-18 18:46:52,778 INFO L137 encePairwiseOnDemand]: 571/579 looper letters, 20 selfloop transitions, 4 changer transitions 0/470 dead transitions. [2022-11-18 18:46:52,778 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 470 transitions, 1175 flow [2022-11-18 18:46:52,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:46:52,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:46:52,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1675 transitions. [2022-11-18 18:46:52,784 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9643062751871042 [2022-11-18 18:46:52,784 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1675 transitions. [2022-11-18 18:46:52,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1675 transitions. [2022-11-18 18:46:52,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:46:52,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1675 transitions. [2022-11-18 18:46:52,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 558.3333333333334) internal successors, (1675), 3 states have internal predecessors, (1675), 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 18:46:52,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:46:52,798 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:46:52,798 INFO L175 Difference]: Start difference. First operand has 484 places, 467 transitions, 1118 flow. Second operand 3 states and 1675 transitions. [2022-11-18 18:46:52,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 470 transitions, 1175 flow [2022-11-18 18:46:52,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 470 transitions, 1160 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:46:52,823 INFO L231 Difference]: Finished difference. Result has 471 places, 467 transitions, 1123 flow [2022-11-18 18:46:52,824 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1095, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1123, PETRI_PLACES=471, PETRI_TRANSITIONS=467} [2022-11-18 18:46:52,824 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -80 predicate places. [2022-11-18 18:46:52,825 INFO L495 AbstractCegarLoop]: Abstraction has has 471 places, 467 transitions, 1123 flow [2022-11-18 18:46:52,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 550.6666666666666) internal successors, (1652), 3 states have internal predecessors, (1652), 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 18:46:52,826 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:46:52,826 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] [2022-11-18 18:46:52,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 18:46:52,827 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:46:52,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:52,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1393198253, now seen corresponding path program 1 times [2022-11-18 18:46:52,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:52,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006469244] [2022-11-18 18:46:52,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:52,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:52,897 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 18:46:52,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:52,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006469244] [2022-11-18 18:46:52,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006469244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:46:52,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:46:52,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:46:52,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527390529] [2022-11-18 18:46:52,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:46:52,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:46:52,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:52,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:46:52,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:46:52,904 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 579 [2022-11-18 18:46:52,906 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 467 transitions, 1123 flow. Second operand has 3 states, 3 states have (on average 488.6666666666667) internal successors, (1466), 3 states have internal predecessors, (1466), 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 18:46:52,907 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:46:52,907 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 579 [2022-11-18 18:46:52,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:46:54,425 INFO L130 PetriNetUnfolder]: 615/4641 cut-off events. [2022-11-18 18:46:54,425 INFO L131 PetriNetUnfolder]: For 166/181 co-relation queries the response was YES. [2022-11-18 18:46:54,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7198 conditions, 4641 events. 615/4641 cut-off events. For 166/181 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 47100 event pairs, 478 based on Foata normal form. 0/4194 useless extension candidates. Maximal degree in co-relation 4895. Up to 1119 conditions per place. [2022-11-18 18:46:54,493 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 67 selfloop transitions, 2 changer transitions 0/469 dead transitions. [2022-11-18 18:46:54,493 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 469 transitions, 1268 flow [2022-11-18 18:46:54,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:46:54,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:46:54,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1521 transitions. [2022-11-18 18:46:54,510 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8756476683937824 [2022-11-18 18:46:54,510 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1521 transitions. [2022-11-18 18:46:54,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1521 transitions. [2022-11-18 18:46:54,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:46:54,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1521 transitions. [2022-11-18 18:46:54,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 507.0) internal successors, (1521), 3 states have internal predecessors, (1521), 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 18:46:54,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:46:54,519 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:46:54,519 INFO L175 Difference]: Start difference. First operand has 471 places, 467 transitions, 1123 flow. Second operand 3 states and 1521 transitions. [2022-11-18 18:46:54,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 469 transitions, 1268 flow [2022-11-18 18:46:54,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 469 transitions, 1268 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:46:54,531 INFO L231 Difference]: Finished difference. Result has 472 places, 466 transitions, 1125 flow [2022-11-18 18:46:54,532 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1121, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1125, PETRI_PLACES=472, PETRI_TRANSITIONS=466} [2022-11-18 18:46:54,532 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -79 predicate places. [2022-11-18 18:46:54,532 INFO L495 AbstractCegarLoop]: Abstraction has has 472 places, 466 transitions, 1125 flow [2022-11-18 18:46:54,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 488.6666666666667) internal successors, (1466), 3 states have internal predecessors, (1466), 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 18:46:54,533 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:46:54,534 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] [2022-11-18 18:46:54,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 18:46:54,534 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:46:54,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:54,534 INFO L85 PathProgramCache]: Analyzing trace with hash -436056440, now seen corresponding path program 1 times [2022-11-18 18:46:54,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:54,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239287156] [2022-11-18 18:46:54,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:54,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:54,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:54,589 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 18:46:54,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:54,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239287156] [2022-11-18 18:46:54,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239287156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:46:54,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:46:54,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:46:54,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507934776] [2022-11-18 18:46:54,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:46:54,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:46:54,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:54,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:46:54,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:46:54,597 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 579 [2022-11-18 18:46:54,599 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 466 transitions, 1125 flow. Second operand has 3 states, 3 states have (on average 492.0) internal successors, (1476), 3 states have internal predecessors, (1476), 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 18:46:54,599 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:46:54,599 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 579 [2022-11-18 18:46:54,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:46:56,600 INFO L130 PetriNetUnfolder]: 938/5324 cut-off events. [2022-11-18 18:46:56,600 INFO L131 PetriNetUnfolder]: For 439/460 co-relation queries the response was YES. [2022-11-18 18:46:56,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8885 conditions, 5324 events. 938/5324 cut-off events. For 439/460 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 56503 event pairs, 778 based on Foata normal form. 0/4844 useless extension candidates. Maximal degree in co-relation 8582. Up to 1864 conditions per place. [2022-11-18 18:46:56,701 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 65 selfloop transitions, 2 changer transitions 0/468 dead transitions. [2022-11-18 18:46:56,701 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 468 transitions, 1266 flow [2022-11-18 18:46:56,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:46:56,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:46:56,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1528 transitions. [2022-11-18 18:46:56,706 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8796776050662061 [2022-11-18 18:46:56,707 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1528 transitions. [2022-11-18 18:46:56,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1528 transitions. [2022-11-18 18:46:56,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:46:56,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1528 transitions. [2022-11-18 18:46:56,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 509.3333333333333) internal successors, (1528), 3 states have internal predecessors, (1528), 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 18:46:56,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:46:56,717 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:46:56,717 INFO L175 Difference]: Start difference. First operand has 472 places, 466 transitions, 1125 flow. Second operand 3 states and 1528 transitions. [2022-11-18 18:46:56,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 468 transitions, 1266 flow [2022-11-18 18:46:56,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 468 transitions, 1262 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:46:56,732 INFO L231 Difference]: Finished difference. Result has 471 places, 465 transitions, 1123 flow [2022-11-18 18:46:56,733 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1119, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=463, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1123, PETRI_PLACES=471, PETRI_TRANSITIONS=465} [2022-11-18 18:46:56,733 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -80 predicate places. [2022-11-18 18:46:56,734 INFO L495 AbstractCegarLoop]: Abstraction has has 471 places, 465 transitions, 1123 flow [2022-11-18 18:46:56,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 492.0) internal successors, (1476), 3 states have internal predecessors, (1476), 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 18:46:56,734 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:46:56,735 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] [2022-11-18 18:46:56,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 18:46:56,735 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:46:56,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:56,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1913186106, now seen corresponding path program 1 times [2022-11-18 18:46:56,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:56,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823931555] [2022-11-18 18:46:56,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:56,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:56,785 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 18:46:56,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:56,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823931555] [2022-11-18 18:46:56,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823931555] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:46:56,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:46:56,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:46:56,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315497655] [2022-11-18 18:46:56,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:46:56,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:46:56,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:56,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:46:56,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:46:56,790 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 579 [2022-11-18 18:46:56,792 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 465 transitions, 1123 flow. Second operand has 3 states, 3 states have (on average 490.6666666666667) internal successors, (1472), 3 states have internal predecessors, (1472), 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 18:46:56,792 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:46:56,792 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 579 [2022-11-18 18:46:56,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:46:58,202 INFO L130 PetriNetUnfolder]: 606/4608 cut-off events. [2022-11-18 18:46:58,202 INFO L131 PetriNetUnfolder]: For 178/193 co-relation queries the response was YES. [2022-11-18 18:46:58,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7160 conditions, 4608 events. 606/4608 cut-off events. For 178/193 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 46777 event pairs, 469 based on Foata normal form. 0/4185 useless extension candidates. Maximal degree in co-relation 6128. Up to 1098 conditions per place. [2022-11-18 18:46:58,298 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 66 selfloop transitions, 2 changer transitions 0/467 dead transitions. [2022-11-18 18:46:58,298 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 467 transitions, 1266 flow [2022-11-18 18:46:58,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:46:58,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:46:58,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1520 transitions. [2022-11-18 18:46:58,302 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8750719631548647 [2022-11-18 18:46:58,302 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1520 transitions. [2022-11-18 18:46:58,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1520 transitions. [2022-11-18 18:46:58,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:46:58,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1520 transitions. [2022-11-18 18:46:58,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 506.6666666666667) internal successors, (1520), 3 states have internal predecessors, (1520), 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 18:46:58,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:46:58,312 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:46:58,312 INFO L175 Difference]: Start difference. First operand has 471 places, 465 transitions, 1123 flow. Second operand 3 states and 1520 transitions. [2022-11-18 18:46:58,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 467 transitions, 1266 flow [2022-11-18 18:46:58,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 467 transitions, 1262 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:46:58,324 INFO L231 Difference]: Finished difference. Result has 470 places, 464 transitions, 1121 flow [2022-11-18 18:46:58,325 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1117, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1121, PETRI_PLACES=470, PETRI_TRANSITIONS=464} [2022-11-18 18:46:58,326 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -81 predicate places. [2022-11-18 18:46:58,326 INFO L495 AbstractCegarLoop]: Abstraction has has 470 places, 464 transitions, 1121 flow [2022-11-18 18:46:58,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 490.6666666666667) internal successors, (1472), 3 states have internal predecessors, (1472), 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 18:46:58,327 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:46:58,327 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] [2022-11-18 18:46:58,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 18:46:58,328 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:46:58,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:58,328 INFO L85 PathProgramCache]: Analyzing trace with hash 2026412724, now seen corresponding path program 1 times [2022-11-18 18:46:58,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:58,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416049627] [2022-11-18 18:46:58,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:58,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:58,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:58,377 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 18:46:58,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:58,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416049627] [2022-11-18 18:46:58,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416049627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:46:58,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:46:58,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:46:58,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864120424] [2022-11-18 18:46:58,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:46:58,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:46:58,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:58,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:46:58,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:46:58,381 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 579 [2022-11-18 18:46:58,383 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 464 transitions, 1121 flow. Second operand has 3 states, 3 states have (on average 488.6666666666667) internal successors, (1466), 3 states have internal predecessors, (1466), 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 18:46:58,383 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:46:58,383 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 579 [2022-11-18 18:46:58,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:47:00,017 INFO L130 PetriNetUnfolder]: 661/4530 cut-off events. [2022-11-18 18:47:00,017 INFO L131 PetriNetUnfolder]: For 461/485 co-relation queries the response was YES. [2022-11-18 18:47:00,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7237 conditions, 4530 events. 661/4530 cut-off events. For 461/485 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 46209 event pairs, 523 based on Foata normal form. 0/4109 useless extension candidates. Maximal degree in co-relation 6978. Up to 1459 conditions per place. [2022-11-18 18:47:00,094 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 68 selfloop transitions, 2 changer transitions 0/466 dead transitions. [2022-11-18 18:47:00,095 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 466 transitions, 1268 flow [2022-11-18 18:47:00,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:47:00,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:47:00,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1521 transitions. [2022-11-18 18:47:00,099 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8756476683937824 [2022-11-18 18:47:00,099 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1521 transitions. [2022-11-18 18:47:00,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1521 transitions. [2022-11-18 18:47:00,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:47:00,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1521 transitions. [2022-11-18 18:47:00,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 507.0) internal successors, (1521), 3 states have internal predecessors, (1521), 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 18:47:00,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:00,108 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:00,108 INFO L175 Difference]: Start difference. First operand has 470 places, 464 transitions, 1121 flow. Second operand 3 states and 1521 transitions. [2022-11-18 18:47:00,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 466 transitions, 1268 flow [2022-11-18 18:47:00,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 466 transitions, 1264 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:47:00,120 INFO L231 Difference]: Finished difference. Result has 469 places, 463 transitions, 1119 flow [2022-11-18 18:47:00,121 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1115, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1119, PETRI_PLACES=469, PETRI_TRANSITIONS=463} [2022-11-18 18:47:00,121 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -82 predicate places. [2022-11-18 18:47:00,122 INFO L495 AbstractCegarLoop]: Abstraction has has 469 places, 463 transitions, 1119 flow [2022-11-18 18:47:00,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 488.6666666666667) internal successors, (1466), 3 states have internal predecessors, (1466), 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 18:47:00,122 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:47:00,123 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] [2022-11-18 18:47:00,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 18:47:00,123 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:47:00,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:00,124 INFO L85 PathProgramCache]: Analyzing trace with hash -618502965, now seen corresponding path program 1 times [2022-11-18 18:47:00,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:00,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510303124] [2022-11-18 18:47:00,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:00,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:00,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:00,608 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 18:47:00,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:00,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510303124] [2022-11-18 18:47:00,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510303124] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:00,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:00,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:47:00,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964595906] [2022-11-18 18:47:00,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:00,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:47:00,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:00,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:47:00,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:47:00,617 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 534 out of 579 [2022-11-18 18:47:00,620 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 469 places, 463 transitions, 1119 flow. Second operand has 6 states, 6 states have (on average 536.1666666666666) internal successors, (3217), 6 states have internal predecessors, (3217), 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 18:47:00,620 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:47:00,620 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 534 of 579 [2022-11-18 18:47:00,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:47:01,809 INFO L130 PetriNetUnfolder]: 88/2666 cut-off events. [2022-11-18 18:47:01,809 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-18 18:47:01,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3396 conditions, 2666 events. 88/2666 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 22226 event pairs, 8 based on Foata normal form. 0/2402 useless extension candidates. Maximal degree in co-relation 2570. Up to 108 conditions per place. [2022-11-18 18:47:01,852 INFO L137 encePairwiseOnDemand]: 574/579 looper letters, 30 selfloop transitions, 4 changer transitions 0/462 dead transitions. [2022-11-18 18:47:01,852 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 462 transitions, 1185 flow [2022-11-18 18:47:01,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:47:01,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:47:01,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3239 transitions. [2022-11-18 18:47:01,859 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9323546344271733 [2022-11-18 18:47:01,859 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3239 transitions. [2022-11-18 18:47:01,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3239 transitions. [2022-11-18 18:47:01,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:47:01,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3239 transitions. [2022-11-18 18:47:01,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 539.8333333333334) internal successors, (3239), 6 states have internal predecessors, (3239), 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 18:47:01,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 579.0) internal successors, (4053), 7 states have internal predecessors, (4053), 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 18:47:01,878 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 579.0) internal successors, (4053), 7 states have internal predecessors, (4053), 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 18:47:01,878 INFO L175 Difference]: Start difference. First operand has 469 places, 463 transitions, 1119 flow. Second operand 6 states and 3239 transitions. [2022-11-18 18:47:01,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 462 transitions, 1185 flow [2022-11-18 18:47:01,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 462 transitions, 1181 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:47:01,891 INFO L231 Difference]: Finished difference. Result has 471 places, 462 transitions, 1121 flow [2022-11-18 18:47:01,892 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1113, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1121, PETRI_PLACES=471, PETRI_TRANSITIONS=462} [2022-11-18 18:47:01,893 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -80 predicate places. [2022-11-18 18:47:01,893 INFO L495 AbstractCegarLoop]: Abstraction has has 471 places, 462 transitions, 1121 flow [2022-11-18 18:47:01,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 536.1666666666666) internal successors, (3217), 6 states have internal predecessors, (3217), 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 18:47:01,894 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:47:01,894 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] [2022-11-18 18:47:01,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 18:47:01,895 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:47:01,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:01,895 INFO L85 PathProgramCache]: Analyzing trace with hash -529676758, now seen corresponding path program 1 times [2022-11-18 18:47:01,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:01,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721163950] [2022-11-18 18:47:01,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:01,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:01,958 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 18:47:01,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:01,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721163950] [2022-11-18 18:47:01,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721163950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:01,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:01,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:47:01,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565611798] [2022-11-18 18:47:01,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:01,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:47:01,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:01,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:47:01,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:47:01,963 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 579 [2022-11-18 18:47:01,965 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 462 transitions, 1121 flow. Second operand has 3 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 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 18:47:01,965 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:47:01,965 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 579 [2022-11-18 18:47:01,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:47:03,690 INFO L130 PetriNetUnfolder]: 923/5266 cut-off events. [2022-11-18 18:47:03,690 INFO L131 PetriNetUnfolder]: For 433/454 co-relation queries the response was YES. [2022-11-18 18:47:03,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8785 conditions, 5266 events. 923/5266 cut-off events. For 433/454 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 55609 event pairs, 763 based on Foata normal form. 0/4829 useless extension candidates. Maximal degree in co-relation 7448. Up to 1828 conditions per place. [2022-11-18 18:47:03,796 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 64 selfloop transitions, 2 changer transitions 0/464 dead transitions. [2022-11-18 18:47:03,796 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 464 transitions, 1260 flow [2022-11-18 18:47:03,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:47:03,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:47:03,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1527 transitions. [2022-11-18 18:47:03,800 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8791018998272885 [2022-11-18 18:47:03,800 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1527 transitions. [2022-11-18 18:47:03,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1527 transitions. [2022-11-18 18:47:03,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:47:03,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1527 transitions. [2022-11-18 18:47:03,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 509.0) internal successors, (1527), 3 states have internal predecessors, (1527), 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 18:47:03,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:03,808 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:03,808 INFO L175 Difference]: Start difference. First operand has 471 places, 462 transitions, 1121 flow. Second operand 3 states and 1527 transitions. [2022-11-18 18:47:03,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 464 transitions, 1260 flow [2022-11-18 18:47:03,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 464 transitions, 1253 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 18:47:03,819 INFO L231 Difference]: Finished difference. Result has 468 places, 461 transitions, 1116 flow [2022-11-18 18:47:03,820 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1112, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1116, PETRI_PLACES=468, PETRI_TRANSITIONS=461} [2022-11-18 18:47:03,821 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -83 predicate places. [2022-11-18 18:47:03,821 INFO L495 AbstractCegarLoop]: Abstraction has has 468 places, 461 transitions, 1116 flow [2022-11-18 18:47:03,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 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 18:47:03,822 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:47:03,822 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] [2022-11-18 18:47:03,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 18:47:03,822 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:47:03,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:03,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1898706215, now seen corresponding path program 1 times [2022-11-18 18:47:03,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:03,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552112973] [2022-11-18 18:47:03,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:03,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:03,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:03,910 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 18:47:03,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:03,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552112973] [2022-11-18 18:47:03,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552112973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:03,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:03,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:47:03,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469559430] [2022-11-18 18:47:03,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:03,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:47:03,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:03,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:47:03,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:47:03,914 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 579 [2022-11-18 18:47:03,915 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 461 transitions, 1116 flow. Second operand has 3 states, 3 states have (on average 492.6666666666667) internal successors, (1478), 3 states have internal predecessors, (1478), 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 18:47:03,915 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:47:03,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 579 [2022-11-18 18:47:03,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:47:05,318 INFO L130 PetriNetUnfolder]: 597/4558 cut-off events. [2022-11-18 18:47:05,318 INFO L131 PetriNetUnfolder]: For 178/193 co-relation queries the response was YES. [2022-11-18 18:47:05,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7083 conditions, 4558 events. 597/4558 cut-off events. For 178/193 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 46144 event pairs, 460 based on Foata normal form. 0/4176 useless extension candidates. Maximal degree in co-relation 6195. Up to 1077 conditions per place. [2022-11-18 18:47:05,383 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 65 selfloop transitions, 2 changer transitions 0/463 dead transitions. [2022-11-18 18:47:05,383 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 463 transitions, 1257 flow [2022-11-18 18:47:05,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:47:05,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:47:05,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1519 transitions. [2022-11-18 18:47:05,388 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.874496257915947 [2022-11-18 18:47:05,388 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1519 transitions. [2022-11-18 18:47:05,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1519 transitions. [2022-11-18 18:47:05,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:47:05,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1519 transitions. [2022-11-18 18:47:05,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 506.3333333333333) internal successors, (1519), 3 states have internal predecessors, (1519), 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 18:47:05,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:05,396 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:05,396 INFO L175 Difference]: Start difference. First operand has 468 places, 461 transitions, 1116 flow. Second operand 3 states and 1519 transitions. [2022-11-18 18:47:05,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 463 transitions, 1257 flow [2022-11-18 18:47:05,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 463 transitions, 1253 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:47:05,407 INFO L231 Difference]: Finished difference. Result has 467 places, 460 transitions, 1114 flow [2022-11-18 18:47:05,408 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1110, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1114, PETRI_PLACES=467, PETRI_TRANSITIONS=460} [2022-11-18 18:47:05,408 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -84 predicate places. [2022-11-18 18:47:05,408 INFO L495 AbstractCegarLoop]: Abstraction has has 467 places, 460 transitions, 1114 flow [2022-11-18 18:47:05,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 492.6666666666667) internal successors, (1478), 3 states have internal predecessors, (1478), 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 18:47:05,409 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:47:05,409 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] [2022-11-18 18:47:05,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 18:47:05,410 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread4Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:47:05,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:05,410 INFO L85 PathProgramCache]: Analyzing trace with hash 248372598, now seen corresponding path program 1 times [2022-11-18 18:47:05,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:05,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658152300] [2022-11-18 18:47:05,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:05,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:05,455 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 18:47:05,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:05,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658152300] [2022-11-18 18:47:05,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658152300] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:05,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:05,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:47:05,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893515136] [2022-11-18 18:47:05,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:05,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:47:05,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:05,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:47:05,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:47:05,459 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 579 [2022-11-18 18:47:05,461 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 460 transitions, 1114 flow. Second operand has 3 states, 3 states have (on average 492.0) internal successors, (1476), 3 states have internal predecessors, (1476), 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 18:47:05,461 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:47:05,461 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 579 [2022-11-18 18:47:05,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:47:06,659 INFO L130 PetriNetUnfolder]: 428/3725 cut-off events. [2022-11-18 18:47:06,659 INFO L131 PetriNetUnfolder]: For 485/495 co-relation queries the response was YES. [2022-11-18 18:47:06,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5457 conditions, 3725 events. 428/3725 cut-off events. For 485/495 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 36289 event pairs, 318 based on Foata normal form. 0/3385 useless extension candidates. Maximal degree in co-relation 5242. Up to 943 conditions per place. [2022-11-18 18:47:06,705 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 65 selfloop transitions, 2 changer transitions 0/462 dead transitions. [2022-11-18 18:47:06,705 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 462 transitions, 1255 flow [2022-11-18 18:47:06,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:47:06,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:47:06,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1528 transitions. [2022-11-18 18:47:06,709 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8796776050662061 [2022-11-18 18:47:06,710 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1528 transitions. [2022-11-18 18:47:06,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1528 transitions. [2022-11-18 18:47:06,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:47:06,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1528 transitions. [2022-11-18 18:47:06,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 509.3333333333333) internal successors, (1528), 3 states have internal predecessors, (1528), 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 18:47:06,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:06,717 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:06,717 INFO L175 Difference]: Start difference. First operand has 467 places, 460 transitions, 1114 flow. Second operand 3 states and 1528 transitions. [2022-11-18 18:47:06,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 462 transitions, 1255 flow [2022-11-18 18:47:06,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 462 transitions, 1251 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:47:06,728 INFO L231 Difference]: Finished difference. Result has 466 places, 459 transitions, 1112 flow [2022-11-18 18:47:06,729 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1108, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1112, PETRI_PLACES=466, PETRI_TRANSITIONS=459} [2022-11-18 18:47:06,729 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -85 predicate places. [2022-11-18 18:47:06,729 INFO L495 AbstractCegarLoop]: Abstraction has has 466 places, 459 transitions, 1112 flow [2022-11-18 18:47:06,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 492.0) internal successors, (1476), 3 states have internal predecessors, (1476), 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 18:47:06,730 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:47:06,730 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] [2022-11-18 18:47:06,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 18:47:06,731 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:47:06,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:06,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1316684707, now seen corresponding path program 1 times [2022-11-18 18:47:06,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:06,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251856340] [2022-11-18 18:47:06,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:06,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:06,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:06,777 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 18:47:06,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:06,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251856340] [2022-11-18 18:47:06,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251856340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:06,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:06,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:47:06,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85494694] [2022-11-18 18:47:06,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:06,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:47:06,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:06,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:47:06,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:47:06,782 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 579 [2022-11-18 18:47:06,783 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 459 transitions, 1112 flow. Second operand has 3 states, 3 states have (on average 490.6666666666667) internal successors, (1472), 3 states have internal predecessors, (1472), 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 18:47:06,783 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:47:06,783 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 579 [2022-11-18 18:47:06,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:47:08,319 INFO L130 PetriNetUnfolder]: 651/4471 cut-off events. [2022-11-18 18:47:08,319 INFO L131 PetriNetUnfolder]: For 465/489 co-relation queries the response was YES. [2022-11-18 18:47:08,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7163 conditions, 4471 events. 651/4471 cut-off events. For 465/489 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 45313 event pairs, 513 based on Foata normal form. 0/4099 useless extension candidates. Maximal degree in co-relation 6276. Up to 1431 conditions per place. [2022-11-18 18:47:08,407 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 67 selfloop transitions, 2 changer transitions 0/461 dead transitions. [2022-11-18 18:47:08,407 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 461 transitions, 1257 flow [2022-11-18 18:47:08,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:47:08,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:47:08,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1520 transitions. [2022-11-18 18:47:08,411 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8750719631548647 [2022-11-18 18:47:08,411 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1520 transitions. [2022-11-18 18:47:08,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1520 transitions. [2022-11-18 18:47:08,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:47:08,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1520 transitions. [2022-11-18 18:47:08,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 506.6666666666667) internal successors, (1520), 3 states have internal predecessors, (1520), 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 18:47:08,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:08,416 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:08,417 INFO L175 Difference]: Start difference. First operand has 466 places, 459 transitions, 1112 flow. Second operand 3 states and 1520 transitions. [2022-11-18 18:47:08,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 461 transitions, 1257 flow [2022-11-18 18:47:08,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 461 transitions, 1253 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:47:08,431 INFO L231 Difference]: Finished difference. Result has 465 places, 458 transitions, 1110 flow [2022-11-18 18:47:08,431 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1106, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=458, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1110, PETRI_PLACES=465, PETRI_TRANSITIONS=458} [2022-11-18 18:47:08,432 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -86 predicate places. [2022-11-18 18:47:08,432 INFO L495 AbstractCegarLoop]: Abstraction has has 465 places, 458 transitions, 1110 flow [2022-11-18 18:47:08,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 490.6666666666667) internal successors, (1472), 3 states have internal predecessors, (1472), 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 18:47:08,433 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:47:08,433 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] [2022-11-18 18:47:08,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 18:47:08,434 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:47:08,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:08,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1977041196, now seen corresponding path program 1 times [2022-11-18 18:47:08,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:08,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986680821] [2022-11-18 18:47:08,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:08,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:08,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:08,490 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 18:47:08,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:08,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986680821] [2022-11-18 18:47:08,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986680821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:08,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:08,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:47:08,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858059006] [2022-11-18 18:47:08,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:08,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:47:08,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:08,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:47:08,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:47:08,495 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 579 [2022-11-18 18:47:08,497 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 458 transitions, 1110 flow. Second operand has 3 states, 3 states have (on average 496.0) internal successors, (1488), 3 states have internal predecessors, (1488), 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 18:47:08,498 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:47:08,498 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 579 [2022-11-18 18:47:08,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:47:10,076 INFO L130 PetriNetUnfolder]: 908/5198 cut-off events. [2022-11-18 18:47:10,076 INFO L131 PetriNetUnfolder]: For 446/467 co-relation queries the response was YES. [2022-11-18 18:47:10,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8692 conditions, 5198 events. 908/5198 cut-off events. For 446/467 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 54536 event pairs, 748 based on Foata normal form. 0/4814 useless extension candidates. Maximal degree in co-relation 7579. Up to 1792 conditions per place. [2022-11-18 18:47:10,201 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 63 selfloop transitions, 2 changer transitions 0/460 dead transitions. [2022-11-18 18:47:10,201 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 460 transitions, 1247 flow [2022-11-18 18:47:10,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:47:10,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:47:10,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1526 transitions. [2022-11-18 18:47:10,204 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8785261945883708 [2022-11-18 18:47:10,205 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1526 transitions. [2022-11-18 18:47:10,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1526 transitions. [2022-11-18 18:47:10,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:47:10,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1526 transitions. [2022-11-18 18:47:10,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 508.6666666666667) internal successors, (1526), 3 states have internal predecessors, (1526), 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 18:47:10,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:10,211 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:10,212 INFO L175 Difference]: Start difference. First operand has 465 places, 458 transitions, 1110 flow. Second operand 3 states and 1526 transitions. [2022-11-18 18:47:10,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 460 transitions, 1247 flow [2022-11-18 18:47:10,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 460 transitions, 1243 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:47:10,224 INFO L231 Difference]: Finished difference. Result has 464 places, 457 transitions, 1108 flow [2022-11-18 18:47:10,225 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1104, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1108, PETRI_PLACES=464, PETRI_TRANSITIONS=457} [2022-11-18 18:47:10,225 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -87 predicate places. [2022-11-18 18:47:10,226 INFO L495 AbstractCegarLoop]: Abstraction has has 464 places, 457 transitions, 1108 flow [2022-11-18 18:47:10,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 496.0) internal successors, (1488), 3 states have internal predecessors, (1488), 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 18:47:10,226 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:47:10,226 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 18:47:10,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-18 18:47:10,227 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:47:10,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:10,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1248741326, now seen corresponding path program 1 times [2022-11-18 18:47:10,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:10,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404403243] [2022-11-18 18:47:10,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:10,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:10,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:10,275 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 18:47:10,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:10,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404403243] [2022-11-18 18:47:10,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404403243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:10,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:10,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:47:10,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869219362] [2022-11-18 18:47:10,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:10,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:47:10,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:10,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:47:10,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:47:10,280 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 579 [2022-11-18 18:47:10,281 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 457 transitions, 1108 flow. Second operand has 3 states, 3 states have (on average 494.6666666666667) internal successors, (1484), 3 states have internal predecessors, (1484), 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 18:47:10,281 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:47:10,282 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 579 [2022-11-18 18:47:10,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:47:11,601 INFO L130 PetriNetUnfolder]: 588/4501 cut-off events. [2022-11-18 18:47:11,601 INFO L131 PetriNetUnfolder]: For 178/193 co-relation queries the response was YES. [2022-11-18 18:47:11,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6996 conditions, 4501 events. 588/4501 cut-off events. For 178/193 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 45404 event pairs, 451 based on Foata normal form. 0/4167 useless extension candidates. Maximal degree in co-relation 6252. Up to 1056 conditions per place. [2022-11-18 18:47:11,685 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 64 selfloop transitions, 2 changer transitions 0/459 dead transitions. [2022-11-18 18:47:11,685 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 459 transitions, 1247 flow [2022-11-18 18:47:11,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:47:11,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:47:11,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1518 transitions. [2022-11-18 18:47:11,691 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8739205526770294 [2022-11-18 18:47:11,691 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1518 transitions. [2022-11-18 18:47:11,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1518 transitions. [2022-11-18 18:47:11,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:47:11,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1518 transitions. [2022-11-18 18:47:11,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 506.0) internal successors, (1518), 3 states have internal predecessors, (1518), 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 18:47:11,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:11,698 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:11,698 INFO L175 Difference]: Start difference. First operand has 464 places, 457 transitions, 1108 flow. Second operand 3 states and 1518 transitions. [2022-11-18 18:47:11,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 459 transitions, 1247 flow [2022-11-18 18:47:11,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 463 places, 459 transitions, 1243 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:47:11,706 INFO L231 Difference]: Finished difference. Result has 463 places, 456 transitions, 1106 flow [2022-11-18 18:47:11,707 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1102, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1106, PETRI_PLACES=463, PETRI_TRANSITIONS=456} [2022-11-18 18:47:11,707 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -88 predicate places. [2022-11-18 18:47:11,707 INFO L495 AbstractCegarLoop]: Abstraction has has 463 places, 456 transitions, 1106 flow [2022-11-18 18:47:11,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 494.6666666666667) internal successors, (1484), 3 states have internal predecessors, (1484), 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 18:47:11,708 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:47:11,708 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 18:47:11,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-18 18:47:11,709 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread4Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:47:11,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:11,709 INFO L85 PathProgramCache]: Analyzing trace with hash -86358854, now seen corresponding path program 1 times [2022-11-18 18:47:11,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:11,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917871379] [2022-11-18 18:47:11,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:11,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:11,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:11,752 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 18:47:11,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:11,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917871379] [2022-11-18 18:47:11,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917871379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:11,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:11,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:47:11,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122716801] [2022-11-18 18:47:11,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:11,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:47:11,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:11,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:47:11,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:47:11,756 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 579 [2022-11-18 18:47:11,758 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 456 transitions, 1106 flow. Second operand has 3 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 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 18:47:11,758 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:47:11,758 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 579 [2022-11-18 18:47:11,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:47:12,951 INFO L130 PetriNetUnfolder]: 422/3680 cut-off events. [2022-11-18 18:47:12,951 INFO L131 PetriNetUnfolder]: For 479/489 co-relation queries the response was YES. [2022-11-18 18:47:12,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5394 conditions, 3680 events. 422/3680 cut-off events. For 479/489 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 35648 event pairs, 312 based on Foata normal form. 0/3379 useless extension candidates. Maximal degree in co-relation 5215. Up to 925 conditions per place. [2022-11-18 18:47:13,004 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 64 selfloop transitions, 2 changer transitions 0/458 dead transitions. [2022-11-18 18:47:13,005 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 458 transitions, 1245 flow [2022-11-18 18:47:13,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:47:13,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:47:13,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1527 transitions. [2022-11-18 18:47:13,009 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8791018998272885 [2022-11-18 18:47:13,009 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1527 transitions. [2022-11-18 18:47:13,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1527 transitions. [2022-11-18 18:47:13,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:47:13,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1527 transitions. [2022-11-18 18:47:13,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 509.0) internal successors, (1527), 3 states have internal predecessors, (1527), 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 18:47:13,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:13,016 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:13,016 INFO L175 Difference]: Start difference. First operand has 463 places, 456 transitions, 1106 flow. Second operand 3 states and 1527 transitions. [2022-11-18 18:47:13,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 458 transitions, 1245 flow [2022-11-18 18:47:13,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 458 transitions, 1241 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:47:13,027 INFO L231 Difference]: Finished difference. Result has 462 places, 455 transitions, 1104 flow [2022-11-18 18:47:13,027 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1100, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1104, PETRI_PLACES=462, PETRI_TRANSITIONS=455} [2022-11-18 18:47:13,028 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -89 predicate places. [2022-11-18 18:47:13,028 INFO L495 AbstractCegarLoop]: Abstraction has has 462 places, 455 transitions, 1104 flow [2022-11-18 18:47:13,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 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 18:47:13,029 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:47:13,029 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] [2022-11-18 18:47:13,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-18 18:47:13,029 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:47:13,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:13,030 INFO L85 PathProgramCache]: Analyzing trace with hash -529219855, now seen corresponding path program 1 times [2022-11-18 18:47:13,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:13,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416463376] [2022-11-18 18:47:13,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:13,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:13,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:13,472 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 18:47:13,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:13,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416463376] [2022-11-18 18:47:13,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416463376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:13,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:13,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:47:13,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735208605] [2022-11-18 18:47:13,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:13,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:47:13,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:13,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:47:13,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:47:13,477 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 534 out of 579 [2022-11-18 18:47:13,480 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 455 transitions, 1104 flow. Second operand has 6 states, 6 states have (on average 537.1666666666666) internal successors, (3223), 6 states have internal predecessors, (3223), 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 18:47:13,480 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:47:13,480 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 534 of 579 [2022-11-18 18:47:13,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:47:14,274 INFO L130 PetriNetUnfolder]: 88/2615 cut-off events. [2022-11-18 18:47:14,274 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-18 18:47:14,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3337 conditions, 2615 events. 88/2615 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 21610 event pairs, 8 based on Foata normal form. 0/2402 useless extension candidates. Maximal degree in co-relation 2887. Up to 108 conditions per place. [2022-11-18 18:47:14,387 INFO L137 encePairwiseOnDemand]: 574/579 looper letters, 29 selfloop transitions, 4 changer transitions 0/454 dead transitions. [2022-11-18 18:47:14,387 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 454 transitions, 1168 flow [2022-11-18 18:47:14,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:47:14,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:47:14,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3238 transitions. [2022-11-18 18:47:14,395 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9320667818077144 [2022-11-18 18:47:14,395 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3238 transitions. [2022-11-18 18:47:14,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3238 transitions. [2022-11-18 18:47:14,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:47:14,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3238 transitions. [2022-11-18 18:47:14,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 539.6666666666666) internal successors, (3238), 6 states have internal predecessors, (3238), 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 18:47:14,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 579.0) internal successors, (4053), 7 states have internal predecessors, (4053), 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 18:47:14,401 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 579.0) internal successors, (4053), 7 states have internal predecessors, (4053), 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 18:47:14,401 INFO L175 Difference]: Start difference. First operand has 462 places, 455 transitions, 1104 flow. Second operand 6 states and 3238 transitions. [2022-11-18 18:47:14,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 454 transitions, 1168 flow [2022-11-18 18:47:14,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 454 transitions, 1164 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:47:14,410 INFO L231 Difference]: Finished difference. Result has 464 places, 454 transitions, 1106 flow [2022-11-18 18:47:14,411 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1098, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1106, PETRI_PLACES=464, PETRI_TRANSITIONS=454} [2022-11-18 18:47:14,412 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -87 predicate places. [2022-11-18 18:47:14,412 INFO L495 AbstractCegarLoop]: Abstraction has has 464 places, 454 transitions, 1106 flow [2022-11-18 18:47:14,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 537.1666666666666) internal successors, (3223), 6 states have internal predecessors, (3223), 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 18:47:14,413 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:47:14,413 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] [2022-11-18 18:47:14,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-18 18:47:14,414 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread3Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:47:14,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:14,416 INFO L85 PathProgramCache]: Analyzing trace with hash 106455776, now seen corresponding path program 1 times [2022-11-18 18:47:14,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:14,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65540092] [2022-11-18 18:47:14,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:14,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:14,466 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 18:47:14,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:14,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65540092] [2022-11-18 18:47:14,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65540092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:14,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:14,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:47:14,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619083345] [2022-11-18 18:47:14,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:14,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:47:14,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:14,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:47:14,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:47:14,471 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 579 [2022-11-18 18:47:14,472 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 454 transitions, 1106 flow. Second operand has 3 states, 3 states have (on average 492.6666666666667) internal successors, (1478), 3 states have internal predecessors, (1478), 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 18:47:14,473 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:47:14,473 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 579 [2022-11-18 18:47:14,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:47:15,737 INFO L130 PetriNetUnfolder]: 641/4412 cut-off events. [2022-11-18 18:47:15,738 INFO L131 PetriNetUnfolder]: For 450/474 co-relation queries the response was YES. [2022-11-18 18:47:15,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7060 conditions, 4412 events. 641/4412 cut-off events. For 450/474 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 44727 event pairs, 503 based on Foata normal form. 0/4089 useless extension candidates. Maximal degree in co-relation 6298. Up to 1403 conditions per place. [2022-11-18 18:47:15,830 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 66 selfloop transitions, 2 changer transitions 0/456 dead transitions. [2022-11-18 18:47:15,830 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 456 transitions, 1249 flow [2022-11-18 18:47:15,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:47:15,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:47:15,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1519 transitions. [2022-11-18 18:47:15,835 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.874496257915947 [2022-11-18 18:47:15,835 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1519 transitions. [2022-11-18 18:47:15,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1519 transitions. [2022-11-18 18:47:15,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:47:15,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1519 transitions. [2022-11-18 18:47:15,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 506.3333333333333) internal successors, (1519), 3 states have internal predecessors, (1519), 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 18:47:15,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:15,839 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:15,839 INFO L175 Difference]: Start difference. First operand has 464 places, 454 transitions, 1106 flow. Second operand 3 states and 1519 transitions. [2022-11-18 18:47:15,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 456 transitions, 1249 flow [2022-11-18 18:47:15,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 456 transitions, 1242 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 18:47:15,847 INFO L231 Difference]: Finished difference. Result has 461 places, 453 transitions, 1101 flow [2022-11-18 18:47:15,848 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1097, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1101, PETRI_PLACES=461, PETRI_TRANSITIONS=453} [2022-11-18 18:47:15,848 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -90 predicate places. [2022-11-18 18:47:15,849 INFO L495 AbstractCegarLoop]: Abstraction has has 461 places, 453 transitions, 1101 flow [2022-11-18 18:47:15,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 492.6666666666667) internal successors, (1478), 3 states have internal predecessors, (1478), 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 18:47:15,849 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:47:15,849 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:47:15,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-18 18:47:15,850 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting thread2Err13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:47:15,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:15,850 INFO L85 PathProgramCache]: Analyzing trace with hash -239018122, now seen corresponding path program 1 times [2022-11-18 18:47:15,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:15,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573859517] [2022-11-18 18:47:15,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:15,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:15,891 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 18:47:15,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:15,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573859517] [2022-11-18 18:47:15,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573859517] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:15,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:15,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:47:15,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994686721] [2022-11-18 18:47:15,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:15,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:47:15,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:15,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:47:15,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:47:15,896 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 579 [2022-11-18 18:47:15,897 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 453 transitions, 1101 flow. Second operand has 3 states, 3 states have (on average 498.0) internal successors, (1494), 3 states have internal predecessors, (1494), 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 18:47:15,897 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:47:15,897 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 579 [2022-11-18 18:47:15,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:47:17,231 INFO L130 PetriNetUnfolder]: 893/5127 cut-off events. [2022-11-18 18:47:17,232 INFO L131 PetriNetUnfolder]: For 443/464 co-relation queries the response was YES. [2022-11-18 18:47:17,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8576 conditions, 5127 events. 893/5127 cut-off events. For 443/464 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 53454 event pairs, 733 based on Foata normal form. 0/4799 useless extension candidates. Maximal degree in co-relation 7655. Up to 1756 conditions per place. [2022-11-18 18:47:17,330 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 62 selfloop transitions, 2 changer transitions 0/455 dead transitions. [2022-11-18 18:47:17,330 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 455 transitions, 1236 flow [2022-11-18 18:47:17,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:47:17,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:47:17,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1525 transitions. [2022-11-18 18:47:17,335 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8779504893494531 [2022-11-18 18:47:17,335 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1525 transitions. [2022-11-18 18:47:17,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1525 transitions. [2022-11-18 18:47:17,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:47:17,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1525 transitions. [2022-11-18 18:47:17,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 508.3333333333333) internal successors, (1525), 3 states have internal predecessors, (1525), 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 18:47:17,339 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:17,339 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:17,339 INFO L175 Difference]: Start difference. First operand has 461 places, 453 transitions, 1101 flow. Second operand 3 states and 1525 transitions. [2022-11-18 18:47:17,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 455 transitions, 1236 flow [2022-11-18 18:47:17,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 455 transitions, 1232 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:47:17,349 INFO L231 Difference]: Finished difference. Result has 460 places, 452 transitions, 1099 flow [2022-11-18 18:47:17,349 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1095, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1099, PETRI_PLACES=460, PETRI_TRANSITIONS=452} [2022-11-18 18:47:17,350 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -91 predicate places. [2022-11-18 18:47:17,350 INFO L495 AbstractCegarLoop]: Abstraction has has 460 places, 452 transitions, 1099 flow [2022-11-18 18:47:17,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 498.0) internal successors, (1494), 3 states have internal predecessors, (1494), 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 18:47:17,351 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:47:17,351 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] [2022-11-18 18:47:17,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-18 18:47:17,351 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:47:17,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:17,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1004144379, now seen corresponding path program 1 times [2022-11-18 18:47:17,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:17,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326788213] [2022-11-18 18:47:17,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:17,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:17,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:17,393 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 18:47:17,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:17,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326788213] [2022-11-18 18:47:17,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326788213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:17,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:17,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:47:17,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730656479] [2022-11-18 18:47:17,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:17,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:47:17,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:17,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:47:17,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:47:17,397 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 579 [2022-11-18 18:47:17,398 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 452 transitions, 1099 flow. Second operand has 3 states, 3 states have (on average 496.6666666666667) internal successors, (1490), 3 states have internal predecessors, (1490), 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 18:47:17,398 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:47:17,399 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 579 [2022-11-18 18:47:17,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:47:18,569 INFO L130 PetriNetUnfolder]: 579/4441 cut-off events. [2022-11-18 18:47:18,569 INFO L131 PetriNetUnfolder]: For 178/193 co-relation queries the response was YES. [2022-11-18 18:47:18,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6909 conditions, 4441 events. 579/4441 cut-off events. For 178/193 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 44630 event pairs, 442 based on Foata normal form. 0/4158 useless extension candidates. Maximal degree in co-relation 6309. Up to 1035 conditions per place. [2022-11-18 18:47:18,695 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 63 selfloop transitions, 2 changer transitions 0/454 dead transitions. [2022-11-18 18:47:18,696 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 454 transitions, 1236 flow [2022-11-18 18:47:18,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:47:18,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:47:18,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1517 transitions. [2022-11-18 18:47:18,701 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8733448474381117 [2022-11-18 18:47:18,701 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1517 transitions. [2022-11-18 18:47:18,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1517 transitions. [2022-11-18 18:47:18,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:47:18,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1517 transitions. [2022-11-18 18:47:18,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 505.6666666666667) internal successors, (1517), 3 states have internal predecessors, (1517), 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 18:47:18,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:18,706 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:18,706 INFO L175 Difference]: Start difference. First operand has 460 places, 452 transitions, 1099 flow. Second operand 3 states and 1517 transitions. [2022-11-18 18:47:18,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 454 transitions, 1236 flow [2022-11-18 18:47:18,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 454 transitions, 1232 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:47:18,715 INFO L231 Difference]: Finished difference. Result has 459 places, 451 transitions, 1097 flow [2022-11-18 18:47:18,716 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1093, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1097, PETRI_PLACES=459, PETRI_TRANSITIONS=451} [2022-11-18 18:47:18,716 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -92 predicate places. [2022-11-18 18:47:18,716 INFO L495 AbstractCegarLoop]: Abstraction has has 459 places, 451 transitions, 1097 flow [2022-11-18 18:47:18,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 496.6666666666667) internal successors, (1490), 3 states have internal predecessors, (1490), 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 18:47:18,717 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:47:18,717 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] [2022-11-18 18:47:18,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-18 18:47:18,717 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting thread4Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:47:18,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:18,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1375026174, now seen corresponding path program 1 times [2022-11-18 18:47:18,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:18,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506699582] [2022-11-18 18:47:18,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:18,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:18,772 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 18:47:18,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:18,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506699582] [2022-11-18 18:47:18,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506699582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:18,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:18,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:47:18,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046569990] [2022-11-18 18:47:18,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:18,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:47:18,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:18,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:47:18,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:47:18,776 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 579 [2022-11-18 18:47:18,778 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 451 transitions, 1097 flow. Second operand has 3 states, 3 states have (on average 496.0) internal successors, (1488), 3 states have internal predecessors, (1488), 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 18:47:18,778 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:47:18,778 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 579 [2022-11-18 18:47:18,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:47:19,896 INFO L130 PetriNetUnfolder]: 416/3632 cut-off events. [2022-11-18 18:47:19,897 INFO L131 PetriNetUnfolder]: For 473/483 co-relation queries the response was YES. [2022-11-18 18:47:19,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5331 conditions, 3632 events. 416/3632 cut-off events. For 473/483 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 35090 event pairs, 306 based on Foata normal form. 0/3373 useless extension candidates. Maximal degree in co-relation 5188. Up to 907 conditions per place. [2022-11-18 18:47:19,959 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 63 selfloop transitions, 2 changer transitions 0/453 dead transitions. [2022-11-18 18:47:19,959 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 453 transitions, 1234 flow [2022-11-18 18:47:19,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:47:19,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:47:19,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1526 transitions. [2022-11-18 18:47:19,964 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8785261945883708 [2022-11-18 18:47:19,964 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1526 transitions. [2022-11-18 18:47:19,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1526 transitions. [2022-11-18 18:47:19,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:47:19,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1526 transitions. [2022-11-18 18:47:19,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 508.6666666666667) internal successors, (1526), 3 states have internal predecessors, (1526), 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 18:47:19,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:19,968 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:19,968 INFO L175 Difference]: Start difference. First operand has 459 places, 451 transitions, 1097 flow. Second operand 3 states and 1526 transitions. [2022-11-18 18:47:19,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 453 transitions, 1234 flow [2022-11-18 18:47:19,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 453 transitions, 1230 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:47:19,976 INFO L231 Difference]: Finished difference. Result has 458 places, 450 transitions, 1095 flow [2022-11-18 18:47:19,976 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1091, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=448, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1095, PETRI_PLACES=458, PETRI_TRANSITIONS=450} [2022-11-18 18:47:19,976 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -93 predicate places. [2022-11-18 18:47:19,976 INFO L495 AbstractCegarLoop]: Abstraction has has 458 places, 450 transitions, 1095 flow [2022-11-18 18:47:19,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 496.0) internal successors, (1488), 3 states have internal predecessors, (1488), 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 18:47:19,977 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:47:19,977 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] [2022-11-18 18:47:19,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-18 18:47:19,978 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting thread3Err13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:47:19,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:19,978 INFO L85 PathProgramCache]: Analyzing trace with hash 356751817, now seen corresponding path program 1 times [2022-11-18 18:47:19,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:19,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052390551] [2022-11-18 18:47:19,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:19,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:20,039 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 18:47:20,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:20,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052390551] [2022-11-18 18:47:20,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052390551] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:20,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:20,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:47:20,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995723072] [2022-11-18 18:47:20,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:20,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:47:20,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:20,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:47:20,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:47:20,044 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 579 [2022-11-18 18:47:20,045 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 450 transitions, 1095 flow. Second operand has 3 states, 3 states have (on average 494.6666666666667) internal successors, (1484), 3 states have internal predecessors, (1484), 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 18:47:20,045 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:47:20,045 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 579 [2022-11-18 18:47:20,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:47:21,343 INFO L130 PetriNetUnfolder]: 631/4356 cut-off events. [2022-11-18 18:47:21,343 INFO L131 PetriNetUnfolder]: For 457/481 co-relation queries the response was YES. [2022-11-18 18:47:21,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6983 conditions, 4356 events. 631/4356 cut-off events. For 457/481 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 43965 event pairs, 493 based on Foata normal form. 0/4079 useless extension candidates. Maximal degree in co-relation 6360. Up to 1375 conditions per place. [2022-11-18 18:47:21,441 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 65 selfloop transitions, 2 changer transitions 0/452 dead transitions. [2022-11-18 18:47:21,442 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 452 transitions, 1236 flow [2022-11-18 18:47:21,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:47:21,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:47:21,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1518 transitions. [2022-11-18 18:47:21,447 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8739205526770294 [2022-11-18 18:47:21,447 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1518 transitions. [2022-11-18 18:47:21,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1518 transitions. [2022-11-18 18:47:21,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:47:21,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1518 transitions. [2022-11-18 18:47:21,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 506.0) internal successors, (1518), 3 states have internal predecessors, (1518), 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 18:47:21,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:21,452 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:21,452 INFO L175 Difference]: Start difference. First operand has 458 places, 450 transitions, 1095 flow. Second operand 3 states and 1518 transitions. [2022-11-18 18:47:21,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 452 transitions, 1236 flow [2022-11-18 18:47:21,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 452 transitions, 1232 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:47:21,465 INFO L231 Difference]: Finished difference. Result has 457 places, 449 transitions, 1093 flow [2022-11-18 18:47:21,466 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1089, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1093, PETRI_PLACES=457, PETRI_TRANSITIONS=449} [2022-11-18 18:47:21,467 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -94 predicate places. [2022-11-18 18:47:21,467 INFO L495 AbstractCegarLoop]: Abstraction has has 457 places, 449 transitions, 1093 flow [2022-11-18 18:47:21,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 494.6666666666667) internal successors, (1484), 3 states have internal predecessors, (1484), 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 18:47:21,468 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:47:21,468 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] [2022-11-18 18:47:21,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-18 18:47:21,469 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting thread2Err16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:47:21,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:21,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1149415648, now seen corresponding path program 1 times [2022-11-18 18:47:21,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:21,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169534148] [2022-11-18 18:47:21,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:21,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:21,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:21,531 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 18:47:21,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:21,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169534148] [2022-11-18 18:47:21,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169534148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:21,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:21,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:47:21,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799619228] [2022-11-18 18:47:21,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:21,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:47:21,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:21,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:47:21,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:47:21,536 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 579 [2022-11-18 18:47:21,538 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 449 transitions, 1093 flow. Second operand has 3 states, 3 states have (on average 500.0) internal successors, (1500), 3 states have internal predecessors, (1500), 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 18:47:21,538 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:47:21,538 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 579 [2022-11-18 18:47:21,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:47:23,212 INFO L130 PetriNetUnfolder]: 878/5059 cut-off events. [2022-11-18 18:47:23,212 INFO L131 PetriNetUnfolder]: For 440/461 co-relation queries the response was YES. [2022-11-18 18:47:23,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8460 conditions, 5059 events. 878/5059 cut-off events. For 440/461 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 52371 event pairs, 718 based on Foata normal form. 0/4784 useless extension candidates. Maximal degree in co-relation 7731. Up to 1720 conditions per place. [2022-11-18 18:47:23,330 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 61 selfloop transitions, 2 changer transitions 0/451 dead transitions. [2022-11-18 18:47:23,330 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 451 transitions, 1226 flow [2022-11-18 18:47:23,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:47:23,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:47:23,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1524 transitions. [2022-11-18 18:47:23,335 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8773747841105354 [2022-11-18 18:47:23,335 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1524 transitions. [2022-11-18 18:47:23,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1524 transitions. [2022-11-18 18:47:23,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:47:23,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1524 transitions. [2022-11-18 18:47:23,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 508.0) internal successors, (1524), 3 states have internal predecessors, (1524), 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 18:47:23,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:23,342 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:23,342 INFO L175 Difference]: Start difference. First operand has 457 places, 449 transitions, 1093 flow. Second operand 3 states and 1524 transitions. [2022-11-18 18:47:23,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 451 transitions, 1226 flow [2022-11-18 18:47:23,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 451 transitions, 1222 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:47:23,356 INFO L231 Difference]: Finished difference. Result has 456 places, 448 transitions, 1091 flow [2022-11-18 18:47:23,357 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1087, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1091, PETRI_PLACES=456, PETRI_TRANSITIONS=448} [2022-11-18 18:47:23,358 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -95 predicate places. [2022-11-18 18:47:23,358 INFO L495 AbstractCegarLoop]: Abstraction has has 456 places, 448 transitions, 1091 flow [2022-11-18 18:47:23,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 500.0) internal successors, (1500), 3 states have internal predecessors, (1500), 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 18:47:23,358 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:47:23,359 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] [2022-11-18 18:47:23,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-18 18:47:23,359 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:47:23,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:23,360 INFO L85 PathProgramCache]: Analyzing trace with hash -122709443, now seen corresponding path program 1 times [2022-11-18 18:47:23,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:23,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876253236] [2022-11-18 18:47:23,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:23,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:23,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:23,974 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 18:47:23,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:23,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876253236] [2022-11-18 18:47:23,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876253236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:23,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:23,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:47:23,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323630932] [2022-11-18 18:47:23,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:23,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:47:23,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:23,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:47:23,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:47:23,980 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 534 out of 579 [2022-11-18 18:47:23,982 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 448 transitions, 1091 flow. Second operand has 6 states, 6 states have (on average 538.1666666666666) internal successors, (3229), 6 states have internal predecessors, (3229), 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 18:47:23,982 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:47:23,983 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 534 of 579 [2022-11-18 18:47:23,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:47:24,723 INFO L130 PetriNetUnfolder]: 88/2559 cut-off events. [2022-11-18 18:47:24,723 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-18 18:47:24,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3289 conditions, 2559 events. 88/2559 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 20893 event pairs, 8 based on Foata normal form. 0/2402 useless extension candidates. Maximal degree in co-relation 2915. Up to 108 conditions per place. [2022-11-18 18:47:24,760 INFO L137 encePairwiseOnDemand]: 574/579 looper letters, 28 selfloop transitions, 4 changer transitions 0/447 dead transitions. [2022-11-18 18:47:24,761 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 447 transitions, 1153 flow [2022-11-18 18:47:24,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:47:24,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:47:24,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3237 transitions. [2022-11-18 18:47:24,767 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9317789291882557 [2022-11-18 18:47:24,767 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3237 transitions. [2022-11-18 18:47:24,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3237 transitions. [2022-11-18 18:47:24,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:47:24,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3237 transitions. [2022-11-18 18:47:24,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 539.5) internal successors, (3237), 6 states have internal predecessors, (3237), 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 18:47:24,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 579.0) internal successors, (4053), 7 states have internal predecessors, (4053), 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 18:47:24,776 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 579.0) internal successors, (4053), 7 states have internal predecessors, (4053), 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 18:47:24,777 INFO L175 Difference]: Start difference. First operand has 456 places, 448 transitions, 1091 flow. Second operand 6 states and 3237 transitions. [2022-11-18 18:47:24,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 447 transitions, 1153 flow [2022-11-18 18:47:24,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 447 transitions, 1149 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:47:24,787 INFO L231 Difference]: Finished difference. Result has 458 places, 447 transitions, 1093 flow [2022-11-18 18:47:24,788 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1085, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=447, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1093, PETRI_PLACES=458, PETRI_TRANSITIONS=447} [2022-11-18 18:47:24,788 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -93 predicate places. [2022-11-18 18:47:24,788 INFO L495 AbstractCegarLoop]: Abstraction has has 458 places, 447 transitions, 1093 flow [2022-11-18 18:47:24,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 538.1666666666666) internal successors, (3229), 6 states have internal predecessors, (3229), 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 18:47:24,789 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:47:24,789 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] [2022-11-18 18:47:24,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-18 18:47:24,790 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting thread1Err19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:47:24,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:24,790 INFO L85 PathProgramCache]: Analyzing trace with hash -224858210, now seen corresponding path program 1 times [2022-11-18 18:47:24,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:24,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206310376] [2022-11-18 18:47:24,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:24,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:24,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:24,859 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 18:47:24,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:24,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206310376] [2022-11-18 18:47:24,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206310376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:24,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:24,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:47:24,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220510479] [2022-11-18 18:47:24,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:24,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:47:24,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:24,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:47:24,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:47:24,863 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 579 [2022-11-18 18:47:24,864 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 447 transitions, 1093 flow. Second operand has 3 states, 3 states have (on average 498.6666666666667) internal successors, (1496), 3 states have internal predecessors, (1496), 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 18:47:24,864 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:47:24,864 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 579 [2022-11-18 18:47:24,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:47:26,159 INFO L130 PetriNetUnfolder]: 570/4381 cut-off events. [2022-11-18 18:47:26,159 INFO L131 PetriNetUnfolder]: For 166/181 co-relation queries the response was YES. [2022-11-18 18:47:26,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6807 conditions, 4381 events. 570/4381 cut-off events. For 166/181 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 43803 event pairs, 433 based on Foata normal form. 0/4149 useless extension candidates. Maximal degree in co-relation 6748. Up to 1014 conditions per place. [2022-11-18 18:47:26,251 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 62 selfloop transitions, 2 changer transitions 0/449 dead transitions. [2022-11-18 18:47:26,252 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 449 transitions, 1228 flow [2022-11-18 18:47:26,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:47:26,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:47:26,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1516 transitions. [2022-11-18 18:47:26,256 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.872769142199194 [2022-11-18 18:47:26,256 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1516 transitions. [2022-11-18 18:47:26,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1516 transitions. [2022-11-18 18:47:26,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:47:26,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1516 transitions. [2022-11-18 18:47:26,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 505.3333333333333) internal successors, (1516), 3 states have internal predecessors, (1516), 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 18:47:26,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:26,264 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:26,264 INFO L175 Difference]: Start difference. First operand has 458 places, 447 transitions, 1093 flow. Second operand 3 states and 1516 transitions. [2022-11-18 18:47:26,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 449 transitions, 1228 flow [2022-11-18 18:47:26,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 449 transitions, 1221 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 18:47:26,278 INFO L231 Difference]: Finished difference. Result has 455 places, 446 transitions, 1088 flow [2022-11-18 18:47:26,278 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1084, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1088, PETRI_PLACES=455, PETRI_TRANSITIONS=446} [2022-11-18 18:47:26,279 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -96 predicate places. [2022-11-18 18:47:26,279 INFO L495 AbstractCegarLoop]: Abstraction has has 455 places, 446 transitions, 1088 flow [2022-11-18 18:47:26,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 498.6666666666667) internal successors, (1496), 3 states have internal predecessors, (1496), 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 18:47:26,280 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:47:26,280 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] [2022-11-18 18:47:26,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-18 18:47:26,281 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting thread4Err13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:47:26,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:26,281 INFO L85 PathProgramCache]: Analyzing trace with hash 374861766, now seen corresponding path program 1 times [2022-11-18 18:47:26,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:26,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953754788] [2022-11-18 18:47:26,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:26,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:26,333 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 18:47:26,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:26,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953754788] [2022-11-18 18:47:26,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953754788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:26,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:26,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:47:26,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195286512] [2022-11-18 18:47:26,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:26,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:47:26,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:26,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:47:26,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:47:26,338 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 579 [2022-11-18 18:47:26,339 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 446 transitions, 1088 flow. Second operand has 3 states, 3 states have (on average 498.0) internal successors, (1494), 3 states have internal predecessors, (1494), 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 18:47:26,340 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:47:26,340 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 579 [2022-11-18 18:47:26,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:47:27,495 INFO L130 PetriNetUnfolder]: 410/3580 cut-off events. [2022-11-18 18:47:27,495 INFO L131 PetriNetUnfolder]: For 467/477 co-relation queries the response was YES. [2022-11-18 18:47:27,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5268 conditions, 3580 events. 410/3580 cut-off events. For 467/477 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 34431 event pairs, 300 based on Foata normal form. 0/3367 useless extension candidates. Maximal degree in co-relation 5161. Up to 889 conditions per place. [2022-11-18 18:47:27,560 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 62 selfloop transitions, 2 changer transitions 0/448 dead transitions. [2022-11-18 18:47:27,560 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 448 transitions, 1223 flow [2022-11-18 18:47:27,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:47:27,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:47:27,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1525 transitions. [2022-11-18 18:47:27,563 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8779504893494531 [2022-11-18 18:47:27,563 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1525 transitions. [2022-11-18 18:47:27,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1525 transitions. [2022-11-18 18:47:27,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:47:27,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1525 transitions. [2022-11-18 18:47:27,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 508.3333333333333) internal successors, (1525), 3 states have internal predecessors, (1525), 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 18:47:27,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:27,567 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:27,567 INFO L175 Difference]: Start difference. First operand has 455 places, 446 transitions, 1088 flow. Second operand 3 states and 1525 transitions. [2022-11-18 18:47:27,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 448 transitions, 1223 flow [2022-11-18 18:47:27,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 448 transitions, 1219 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:47:27,577 INFO L231 Difference]: Finished difference. Result has 454 places, 445 transitions, 1086 flow [2022-11-18 18:47:27,577 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1082, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1086, PETRI_PLACES=454, PETRI_TRANSITIONS=445} [2022-11-18 18:47:27,578 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -97 predicate places. [2022-11-18 18:47:27,578 INFO L495 AbstractCegarLoop]: Abstraction has has 454 places, 445 transitions, 1086 flow [2022-11-18 18:47:27,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 498.0) internal successors, (1494), 3 states have internal predecessors, (1494), 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 18:47:27,578 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:47:27,579 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] [2022-11-18 18:47:27,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-18 18:47:27,579 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting thread3Err16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:47:27,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:27,579 INFO L85 PathProgramCache]: Analyzing trace with hash -719056116, now seen corresponding path program 1 times [2022-11-18 18:47:27,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:27,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530282206] [2022-11-18 18:47:27,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:27,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:27,629 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 18:47:27,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:27,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530282206] [2022-11-18 18:47:27,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530282206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:27,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:27,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:47:27,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811056178] [2022-11-18 18:47:27,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:27,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:47:27,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:27,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:47:27,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:47:27,634 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 579 [2022-11-18 18:47:27,635 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 445 transitions, 1086 flow. Second operand has 3 states, 3 states have (on average 496.6666666666667) internal successors, (1490), 3 states have internal predecessors, (1490), 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 18:47:27,635 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:47:27,636 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 579 [2022-11-18 18:47:27,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:47:29,051 INFO L130 PetriNetUnfolder]: 621/4293 cut-off events. [2022-11-18 18:47:29,051 INFO L131 PetriNetUnfolder]: For 453/477 co-relation queries the response was YES. [2022-11-18 18:47:29,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6893 conditions, 4293 events. 621/4293 cut-off events. For 453/477 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 42989 event pairs, 483 based on Foata normal form. 0/4069 useless extension candidates. Maximal degree in co-relation 6402. Up to 1347 conditions per place. [2022-11-18 18:47:29,144 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 64 selfloop transitions, 2 changer transitions 0/447 dead transitions. [2022-11-18 18:47:29,144 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 447 transitions, 1225 flow [2022-11-18 18:47:29,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:47:29,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:47:29,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1517 transitions. [2022-11-18 18:47:29,150 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8733448474381117 [2022-11-18 18:47:29,150 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1517 transitions. [2022-11-18 18:47:29,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1517 transitions. [2022-11-18 18:47:29,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:47:29,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1517 transitions. [2022-11-18 18:47:29,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 505.6666666666667) internal successors, (1517), 3 states have internal predecessors, (1517), 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 18:47:29,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:29,157 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:29,157 INFO L175 Difference]: Start difference. First operand has 454 places, 445 transitions, 1086 flow. Second operand 3 states and 1517 transitions. [2022-11-18 18:47:29,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 447 transitions, 1225 flow [2022-11-18 18:47:29,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 447 transitions, 1221 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:47:29,170 INFO L231 Difference]: Finished difference. Result has 453 places, 444 transitions, 1084 flow [2022-11-18 18:47:29,171 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1080, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=444, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1084, PETRI_PLACES=453, PETRI_TRANSITIONS=444} [2022-11-18 18:47:29,171 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -98 predicate places. [2022-11-18 18:47:29,171 INFO L495 AbstractCegarLoop]: Abstraction has has 453 places, 444 transitions, 1084 flow [2022-11-18 18:47:29,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 496.6666666666667) internal successors, (1490), 3 states have internal predecessors, (1490), 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 18:47:29,172 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:47:29,172 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 18:47:29,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-18 18:47:29,173 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting thread2Err19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:47:29,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:29,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1748379454, now seen corresponding path program 1 times [2022-11-18 18:47:29,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:29,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794776750] [2022-11-18 18:47:29,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:29,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:29,222 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 18:47:29,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:29,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794776750] [2022-11-18 18:47:29,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794776750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:29,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:29,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:47:29,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517695198] [2022-11-18 18:47:29,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:29,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:47:29,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:29,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:47:29,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:47:29,227 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 579 [2022-11-18 18:47:29,229 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 444 transitions, 1084 flow. Second operand has 3 states, 3 states have (on average 502.0) internal successors, (1506), 3 states have internal predecessors, (1506), 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 18:47:29,229 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:47:29,229 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 579 [2022-11-18 18:47:29,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:47:30,738 INFO L130 PetriNetUnfolder]: 863/4988 cut-off events. [2022-11-18 18:47:30,738 INFO L131 PetriNetUnfolder]: For 437/458 co-relation queries the response was YES. [2022-11-18 18:47:30,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8344 conditions, 4988 events. 863/4988 cut-off events. For 437/458 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 51154 event pairs, 703 based on Foata normal form. 0/4769 useless extension candidates. Maximal degree in co-relation 7807. Up to 1684 conditions per place. [2022-11-18 18:47:30,846 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 60 selfloop transitions, 2 changer transitions 0/446 dead transitions. [2022-11-18 18:47:30,846 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 446 transitions, 1215 flow [2022-11-18 18:47:30,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:47:30,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:47:30,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1523 transitions. [2022-11-18 18:47:30,848 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8767990788716177 [2022-11-18 18:47:30,848 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1523 transitions. [2022-11-18 18:47:30,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1523 transitions. [2022-11-18 18:47:30,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:47:30,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1523 transitions. [2022-11-18 18:47:30,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 507.6666666666667) internal successors, (1523), 3 states have internal predecessors, (1523), 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 18:47:30,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:30,851 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 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 18:47:30,851 INFO L175 Difference]: Start difference. First operand has 453 places, 444 transitions, 1084 flow. Second operand 3 states and 1523 transitions. [2022-11-18 18:47:30,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 446 transitions, 1215 flow [2022-11-18 18:47:30,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 446 transitions, 1211 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:47:30,859 INFO L231 Difference]: Finished difference. Result has 452 places, 443 transitions, 1082 flow [2022-11-18 18:47:30,859 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1078, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1082, PETRI_PLACES=452, PETRI_TRANSITIONS=443} [2022-11-18 18:47:30,860 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -99 predicate places. [2022-11-18 18:47:30,860 INFO L495 AbstractCegarLoop]: Abstraction has has 452 places, 443 transitions, 1082 flow [2022-11-18 18:47:30,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 502.0) internal successors, (1506), 3 states have internal predecessors, (1506), 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 18:47:30,860 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:47:30,860 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] [2022-11-18 18:47:30,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-18 18:47:30,861 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting thread1Err22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-18 18:47:30,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:30,861 INFO L85 PathProgramCache]: Analyzing trace with hash -659140815, now seen corresponding path program 1 times [2022-11-18 18:47:30,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:30,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094892169] [2022-11-18 18:47:30,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:30,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:30,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:30,900 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 18:47:30,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:30,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094892169] [2022-11-18 18:47:30,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094892169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:30,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:30,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:47:30,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079819307] [2022-11-18 18:47:30,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:30,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:47:30,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:30,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:47:30,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:47:30,904 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 579 [2022-11-18 18:47:30,905 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 443 transitions, 1082 flow. Second operand has 3 states, 3 states have (on average 500.6666666666667) internal successors, (1502), 3 states have internal predecessors, (1502), 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 18:47:30,905 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:47:30,906 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 579 [2022-11-18 18:47:30,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand