./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/31_simple_loop5_vs.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f475d2-af38-4986-b762-810050b9c6cd/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f475d2-af38-4986-b762-810050b9c6cd/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_37f475d2-af38-4986-b762-810050b9c6cd/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f475d2-af38-4986-b762-810050b9c6cd/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/31_simple_loop5_vs.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f475d2-af38-4986-b762-810050b9c6cd/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_37f475d2-af38-4986-b762-810050b9c6cd/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 3ace826ce717f8420bd44e3ebb10a0f5689c8f1d5dcaf8399a3f9b8d8dda146f --- 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 18:26:33,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:26:33,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:26:33,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:26:33,032 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:26:33,033 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:26:33,034 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:26:33,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:26:33,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:26:33,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:26:33,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:26:33,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:26:33,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:26:33,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:26:33,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:26:33,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:26:33,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:26:33,049 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:26:33,051 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:26:33,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:26:33,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:26:33,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:26:33,062 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:26:33,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:26:33,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:26:33,075 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:26:33,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:26:33,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:26:33,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:26:33,078 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:26:33,084 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:26:33,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:26:33,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:26:33,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:26:33,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:26:33,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:26:33,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:26:33,090 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:26:33,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:26:33,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:26:33,094 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:26:33,095 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f475d2-af38-4986-b762-810050b9c6cd/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 18:26:33,139 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:26:33,139 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:26:33,140 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:26:33,140 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:26:33,142 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:26:33,142 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:26:33,143 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:26:33,143 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:26:33,144 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:26:33,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:26:33,145 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:26:33,145 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:26:33,146 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:26:33,146 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:26:33,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:26:33,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:26:33,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:26:33,147 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:26:33,147 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 18:26:33,147 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:26:33,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:26:33,147 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:26:33,148 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:26:33,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:26:33,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:26:33,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:26:33,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:26:33,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:26:33,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:26:33,149 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:26:33,149 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:26:33,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:26:33,150 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:26:33,150 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:26:33,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:26:33,151 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_37f475d2-af38-4986-b762-810050b9c6cd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f475d2-af38-4986-b762-810050b9c6cd/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ace826ce717f8420bd44e3ebb10a0f5689c8f1d5dcaf8399a3f9b8d8dda146f [2022-11-18 18:26:33,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:26:33,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:26:33,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:26:33,532 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:26:33,535 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:26:33,536 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f475d2-af38-4986-b762-810050b9c6cd/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-ext/31_simple_loop5_vs.i [2022-11-18 18:26:33,607 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f475d2-af38-4986-b762-810050b9c6cd/bin/uautomizer-TMbwUNV5ro/data/10fd8e3a1/f6e8452fdef64960abc04e1ce51e4070/FLAG71fc80310 [2022-11-18 18:26:34,274 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:26:34,283 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f475d2-af38-4986-b762-810050b9c6cd/sv-benchmarks/c/pthread-ext/31_simple_loop5_vs.i [2022-11-18 18:26:34,301 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f475d2-af38-4986-b762-810050b9c6cd/bin/uautomizer-TMbwUNV5ro/data/10fd8e3a1/f6e8452fdef64960abc04e1ce51e4070/FLAG71fc80310 [2022-11-18 18:26:34,536 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f475d2-af38-4986-b762-810050b9c6cd/bin/uautomizer-TMbwUNV5ro/data/10fd8e3a1/f6e8452fdef64960abc04e1ce51e4070 [2022-11-18 18:26:34,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:26:34,541 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:26:34,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:26:34,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:26:34,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:26:34,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:26:34" (1/1) ... [2022-11-18 18:26:34,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c65d0cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:34, skipping insertion in model container [2022-11-18 18:26:34,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:26:34" (1/1) ... [2022-11-18 18:26:34,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:26:34,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:26:35,135 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_37f475d2-af38-4986-b762-810050b9c6cd/sv-benchmarks/c/pthread-ext/31_simple_loop5_vs.i[30438,30451] [2022-11-18 18:26:35,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:26:35,159 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:26:35,213 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_37f475d2-af38-4986-b762-810050b9c6cd/sv-benchmarks/c/pthread-ext/31_simple_loop5_vs.i[30438,30451] [2022-11-18 18:26:35,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:26:35,248 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:26:35,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:35 WrapperNode [2022-11-18 18:26:35,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:26:35,250 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:26:35,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:26:35,250 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:26:35,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:35" (1/1) ... [2022-11-18 18:26:35,297 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:35" (1/1) ... [2022-11-18 18:26:35,350 INFO L138 Inliner]: procedures = 170, calls = 18, calls flagged for inlining = 8, calls inlined = 10, statements flattened = 135 [2022-11-18 18:26:35,351 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:26:35,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:26:35,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:26:35,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:26:35,363 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:35" (1/1) ... [2022-11-18 18:26:35,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:35" (1/1) ... [2022-11-18 18:26:35,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:35" (1/1) ... [2022-11-18 18:26:35,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:35" (1/1) ... [2022-11-18 18:26:35,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:35" (1/1) ... [2022-11-18 18:26:35,404 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:35" (1/1) ... [2022-11-18 18:26:35,406 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:35" (1/1) ... [2022-11-18 18:26:35,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:35" (1/1) ... [2022-11-18 18:26:35,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:26:35,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:26:35,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:26:35,423 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:26:35,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:35" (1/1) ... [2022-11-18 18:26:35,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:26:35,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f475d2-af38-4986-b762-810050b9c6cd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:26:35,472 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f475d2-af38-4986-b762-810050b9c6cd/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:26:35,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f475d2-af38-4986-b762-810050b9c6cd/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:26:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-11-18 18:26:35,528 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-11-18 18:26:35,529 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-18 18:26:35,529 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-18 18:26:35,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:26:35,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:26:35,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:26:35,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:26:35,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:26:35,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:26:35,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:26:35,535 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 18:26:35,763 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:26:35,765 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:26:36,048 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:26:36,253 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:26:36,254 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-18 18:26:36,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:26:36 BoogieIcfgContainer [2022-11-18 18:26:36,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:26:36,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:26:36,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:26:36,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:26:36,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:26:34" (1/3) ... [2022-11-18 18:26:36,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f3e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:26:36, skipping insertion in model container [2022-11-18 18:26:36,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:35" (2/3) ... [2022-11-18 18:26:36,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f3e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:26:36, skipping insertion in model container [2022-11-18 18:26:36,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:26:36" (3/3) ... [2022-11-18 18:26:36,268 INFO L112 eAbstractionObserver]: Analyzing ICFG 31_simple_loop5_vs.i [2022-11-18 18:26:36,278 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 18:26:36,290 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:26:36,290 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-18 18:26:36,290 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 18:26:36,394 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 18:26:36,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 110 transitions, 230 flow [2022-11-18 18:26:36,552 INFO L130 PetriNetUnfolder]: 7/120 cut-off events. [2022-11-18 18:26:36,553 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:26:36,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 120 events. 7/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 187 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 101. Up to 4 conditions per place. [2022-11-18 18:26:36,560 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 110 transitions, 230 flow [2022-11-18 18:26:36,567 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 109 transitions, 226 flow [2022-11-18 18:26:36,593 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:26:36,603 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;@29af873b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:26:36,603 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2022-11-18 18:26:36,625 INFO L130 PetriNetUnfolder]: 2/30 cut-off events. [2022-11-18 18:26:36,626 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:26:36,626 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:26:36,627 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 18:26:36,628 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 18:26:36,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:36,636 INFO L85 PathProgramCache]: Analyzing trace with hash 404418680, now seen corresponding path program 1 times [2022-11-18 18:26:36,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:36,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229738523] [2022-11-18 18:26:36,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:36,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:36,900 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 18:26:36,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:36,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229738523] [2022-11-18 18:26:36,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229738523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:36,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:36,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 18:26:36,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196628896] [2022-11-18 18:26:36,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:36,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 18:26:36,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:36,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 18:26:36,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 18:26:36,975 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 110 [2022-11-18 18:26:36,978 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 109 transitions, 226 flow. Second operand has 2 states, 2 states have (on average 89.0) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:36,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:26:36,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 110 [2022-11-18 18:26:36,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:26:37,077 INFO L130 PetriNetUnfolder]: 11/123 cut-off events. [2022-11-18 18:26:37,078 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 18:26:37,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 123 events. 11/123 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 183 event pairs, 4 based on Foata normal form. 25/128 useless extension candidates. Maximal degree in co-relation 126. Up to 22 conditions per place. [2022-11-18 18:26:37,083 INFO L137 encePairwiseOnDemand]: 95/110 looper letters, 6 selfloop transitions, 0 changer transitions 0/84 dead transitions. [2022-11-18 18:26:37,083 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 84 transitions, 188 flow [2022-11-18 18:26:37,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 18:26:37,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-18 18:26:37,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 197 transitions. [2022-11-18 18:26:37,102 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8954545454545455 [2022-11-18 18:26:37,103 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 197 transitions. [2022-11-18 18:26:37,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 197 transitions. [2022-11-18 18:26:37,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:26:37,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 197 transitions. [2022-11-18 18:26:37,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 98.5) internal successors, (197), 2 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:37,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:37,127 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:37,129 INFO L175 Difference]: Start difference. First operand has 109 places, 109 transitions, 226 flow. Second operand 2 states and 197 transitions. [2022-11-18 18:26:37,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 84 transitions, 188 flow [2022-11-18 18:26:37,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 84 transitions, 187 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:26:37,141 INFO L231 Difference]: Finished difference. Result has 88 places, 84 transitions, 175 flow [2022-11-18 18:26:37,143 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=175, PETRI_PLACES=88, PETRI_TRANSITIONS=84} [2022-11-18 18:26:37,150 INFO L288 CegarLoopForPetriNet]: 109 programPoint places, -21 predicate places. [2022-11-18 18:26:37,150 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 84 transitions, 175 flow [2022-11-18 18:26:37,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 89.0) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:37,150 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:26:37,151 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] [2022-11-18 18:26:37,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:26:37,151 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 18:26:37,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:37,153 INFO L85 PathProgramCache]: Analyzing trace with hash 2099311867, now seen corresponding path program 1 times [2022-11-18 18:26:37,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:37,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451406046] [2022-11-18 18:26:37,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:37,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:37,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:37,270 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 18:26:37,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:37,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451406046] [2022-11-18 18:26:37,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451406046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:37,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:37,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:26:37,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840312878] [2022-11-18 18:26:37,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:37,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:26:37,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:37,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:26:37,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:37,276 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 110 [2022-11-18 18:26:37,276 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 84 transitions, 175 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:37,277 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:26:37,277 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 110 [2022-11-18 18:26:37,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:26:37,469 INFO L130 PetriNetUnfolder]: 72/390 cut-off events. [2022-11-18 18:26:37,470 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 18:26:37,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 554 conditions, 390 events. 72/390 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1600 event pairs, 13 based on Foata normal form. 0/321 useless extension candidates. Maximal degree in co-relation 550. Up to 90 conditions per place. [2022-11-18 18:26:37,474 INFO L137 encePairwiseOnDemand]: 104/110 looper letters, 20 selfloop transitions, 4 changer transitions 0/93 dead transitions. [2022-11-18 18:26:37,475 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 93 transitions, 244 flow [2022-11-18 18:26:37,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:26:37,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:26:37,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions. [2022-11-18 18:26:37,478 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.796969696969697 [2022-11-18 18:26:37,478 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 263 transitions. [2022-11-18 18:26:37,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 263 transitions. [2022-11-18 18:26:37,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:26:37,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 263 transitions. [2022-11-18 18:26:37,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:37,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:37,482 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:37,482 INFO L175 Difference]: Start difference. First operand has 88 places, 84 transitions, 175 flow. Second operand 3 states and 263 transitions. [2022-11-18 18:26:37,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 93 transitions, 244 flow [2022-11-18 18:26:37,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 93 transitions, 244 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:26:37,485 INFO L231 Difference]: Finished difference. Result has 91 places, 86 transitions, 203 flow [2022-11-18 18:26:37,485 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=203, PETRI_PLACES=91, PETRI_TRANSITIONS=86} [2022-11-18 18:26:37,486 INFO L288 CegarLoopForPetriNet]: 109 programPoint places, -18 predicate places. [2022-11-18 18:26:37,487 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 86 transitions, 203 flow [2022-11-18 18:26:37,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:37,487 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:26:37,487 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:37,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:26:37,488 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 18:26:37,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:37,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1195908771, now seen corresponding path program 1 times [2022-11-18 18:26:37,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:37,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70912847] [2022-11-18 18:26:37,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:37,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:37,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:37,547 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 18:26:37,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:37,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70912847] [2022-11-18 18:26:37,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70912847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:37,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:37,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:26:37,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952899348] [2022-11-18 18:26:37,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:37,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:26:37,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:37,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:26:37,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:37,551 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 110 [2022-11-18 18:26:37,551 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 86 transitions, 203 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:37,551 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:26:37,552 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 110 [2022-11-18 18:26:37,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:26:37,726 INFO L130 PetriNetUnfolder]: 126/695 cut-off events. [2022-11-18 18:26:37,726 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2022-11-18 18:26:37,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1052 conditions, 695 events. 126/695 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3687 event pairs, 30 based on Foata normal form. 0/585 useless extension candidates. Maximal degree in co-relation 1046. Up to 137 conditions per place. [2022-11-18 18:26:37,736 INFO L137 encePairwiseOnDemand]: 104/110 looper letters, 20 selfloop transitions, 4 changer transitions 0/95 dead transitions. [2022-11-18 18:26:37,736 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 95 transitions, 272 flow [2022-11-18 18:26:37,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:26:37,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:26:37,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions. [2022-11-18 18:26:37,740 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.796969696969697 [2022-11-18 18:26:37,741 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 263 transitions. [2022-11-18 18:26:37,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 263 transitions. [2022-11-18 18:26:37,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:26:37,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 263 transitions. [2022-11-18 18:26:37,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:37,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:37,747 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:37,747 INFO L175 Difference]: Start difference. First operand has 91 places, 86 transitions, 203 flow. Second operand 3 states and 263 transitions. [2022-11-18 18:26:37,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 95 transitions, 272 flow [2022-11-18 18:26:37,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 95 transitions, 264 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:26:37,753 INFO L231 Difference]: Finished difference. Result has 92 places, 88 transitions, 223 flow [2022-11-18 18:26:37,754 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=223, PETRI_PLACES=92, PETRI_TRANSITIONS=88} [2022-11-18 18:26:37,756 INFO L288 CegarLoopForPetriNet]: 109 programPoint places, -17 predicate places. [2022-11-18 18:26:37,756 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 88 transitions, 223 flow [2022-11-18 18:26:37,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:37,757 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:26:37,759 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:37,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:26:37,759 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 18:26:37,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:37,760 INFO L85 PathProgramCache]: Analyzing trace with hash 2000297809, now seen corresponding path program 1 times [2022-11-18 18:26:37,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:37,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293166380] [2022-11-18 18:26:37,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:37,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:37,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:26:37,809 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:26:37,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:26:37,879 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:26:37,879 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 18:26:37,880 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 38 remaining) [2022-11-18 18:26:37,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2022-11-18 18:26:37,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2022-11-18 18:26:37,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2022-11-18 18:26:37,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2022-11-18 18:26:37,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2022-11-18 18:26:37,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2022-11-18 18:26:37,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2022-11-18 18:26:37,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2022-11-18 18:26:37,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2022-11-18 18:26:37,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2022-11-18 18:26:37,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2022-11-18 18:26:37,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2022-11-18 18:26:37,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2022-11-18 18:26:37,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2022-11-18 18:26:37,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2022-11-18 18:26:37,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2022-11-18 18:26:37,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2022-11-18 18:26:37,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2022-11-18 18:26:37,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 38 remaining) [2022-11-18 18:26:37,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2022-11-18 18:26:37,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2022-11-18 18:26:37,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2022-11-18 18:26:37,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2022-11-18 18:26:37,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (13 of 38 remaining) [2022-11-18 18:26:37,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2022-11-18 18:26:37,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2022-11-18 18:26:37,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2022-11-18 18:26:37,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2022-11-18 18:26:37,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2022-11-18 18:26:37,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2022-11-18 18:26:37,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2022-11-18 18:26:37,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2022-11-18 18:26:37,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2022-11-18 18:26:37,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2022-11-18 18:26:37,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2022-11-18 18:26:37,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2022-11-18 18:26:37,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2022-11-18 18:26:37,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:26:37,913 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-18 18:26:37,915 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 18:26:37,916 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-18 18:26:37,976 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 18:26:37,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 181 places, 182 transitions, 388 flow [2022-11-18 18:26:38,019 INFO L130 PetriNetUnfolder]: 10/182 cut-off events. [2022-11-18 18:26:38,020 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 18:26:38,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 182 events. 10/182 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 398 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 191. Up to 6 conditions per place. [2022-11-18 18:26:38,022 INFO L82 GeneralOperation]: Start removeDead. Operand has 181 places, 182 transitions, 388 flow [2022-11-18 18:26:38,026 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 158 places, 158 transitions, 331 flow [2022-11-18 18:26:38,027 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:26:38,028 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;@29af873b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:26:38,028 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2022-11-18 18:26:38,033 INFO L130 PetriNetUnfolder]: 2/30 cut-off events. [2022-11-18 18:26:38,033 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:26:38,033 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:26:38,033 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 18:26:38,033 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 18:26:38,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:38,034 INFO L85 PathProgramCache]: Analyzing trace with hash 308437175, now seen corresponding path program 1 times [2022-11-18 18:26:38,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:38,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129067457] [2022-11-18 18:26:38,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:38,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:38,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:38,060 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 18:26:38,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:38,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129067457] [2022-11-18 18:26:38,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129067457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:38,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:38,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 18:26:38,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132813567] [2022-11-18 18:26:38,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:38,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 18:26:38,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:38,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 18:26:38,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 18:26:38,064 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 182 [2022-11-18 18:26:38,064 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 158 transitions, 331 flow. Second operand has 2 states, 2 states have (on average 141.0) internal successors, (282), 2 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:38,065 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:26:38,065 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 182 [2022-11-18 18:26:38,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:26:38,197 INFO L130 PetriNetUnfolder]: 71/571 cut-off events. [2022-11-18 18:26:38,197 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-11-18 18:26:38,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 715 conditions, 571 events. 71/571 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2743 event pairs, 37 based on Foata normal form. 109/572 useless extension candidates. Maximal degree in co-relation 685. Up to 108 conditions per place. [2022-11-18 18:26:38,205 INFO L137 encePairwiseOnDemand]: 161/182 looper letters, 9 selfloop transitions, 0 changer transitions 0/125 dead transitions. [2022-11-18 18:26:38,206 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 125 transitions, 283 flow [2022-11-18 18:26:38,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 18:26:38,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-18 18:26:38,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 310 transitions. [2022-11-18 18:26:38,207 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8516483516483516 [2022-11-18 18:26:38,207 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 310 transitions. [2022-11-18 18:26:38,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 310 transitions. [2022-11-18 18:26:38,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:26:38,208 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 310 transitions. [2022-11-18 18:26:38,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 155.0) internal successors, (310), 2 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:38,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:38,210 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:38,211 INFO L175 Difference]: Start difference. First operand has 158 places, 158 transitions, 331 flow. Second operand 2 states and 310 transitions. [2022-11-18 18:26:38,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 125 transitions, 283 flow [2022-11-18 18:26:38,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 125 transitions, 280 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-11-18 18:26:38,214 INFO L231 Difference]: Finished difference. Result has 130 places, 125 transitions, 262 flow [2022-11-18 18:26:38,215 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=262, PETRI_PLACES=130, PETRI_TRANSITIONS=125} [2022-11-18 18:26:38,216 INFO L288 CegarLoopForPetriNet]: 158 programPoint places, -28 predicate places. [2022-11-18 18:26:38,217 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 125 transitions, 262 flow [2022-11-18 18:26:38,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 141.0) internal successors, (282), 2 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:38,218 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:26:38,218 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] [2022-11-18 18:26:38,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:26:38,218 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 18:26:38,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:38,219 INFO L85 PathProgramCache]: Analyzing trace with hash 55406138, now seen corresponding path program 1 times [2022-11-18 18:26:38,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:38,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657054178] [2022-11-18 18:26:38,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:38,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:38,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:38,299 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 18:26:38,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:38,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657054178] [2022-11-18 18:26:38,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657054178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:38,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:38,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:26:38,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846053181] [2022-11-18 18:26:38,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:38,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:26:38,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:38,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:26:38,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:38,302 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 182 [2022-11-18 18:26:38,303 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 125 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:38,303 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:26:38,303 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 182 [2022-11-18 18:26:38,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:26:39,304 INFO L130 PetriNetUnfolder]: 1569/5444 cut-off events. [2022-11-18 18:26:39,332 INFO L131 PetriNetUnfolder]: For 204/204 co-relation queries the response was YES. [2022-11-18 18:26:39,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8070 conditions, 5444 events. 1569/5444 cut-off events. For 204/204 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 50719 event pairs, 453 based on Foata normal form. 0/4384 useless extension candidates. Maximal degree in co-relation 8065. Up to 1337 conditions per place. [2022-11-18 18:26:39,406 INFO L137 encePairwiseOnDemand]: 171/182 looper letters, 36 selfloop transitions, 8 changer transitions 0/145 dead transitions. [2022-11-18 18:26:39,407 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 145 transitions, 398 flow [2022-11-18 18:26:39,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:26:39,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:26:39,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 413 transitions. [2022-11-18 18:26:39,409 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7564102564102564 [2022-11-18 18:26:39,409 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 413 transitions. [2022-11-18 18:26:39,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 413 transitions. [2022-11-18 18:26:39,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:26:39,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 413 transitions. [2022-11-18 18:26:39,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:39,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:39,415 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:39,415 INFO L175 Difference]: Start difference. First operand has 130 places, 125 transitions, 262 flow. Second operand 3 states and 413 transitions. [2022-11-18 18:26:39,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 145 transitions, 398 flow [2022-11-18 18:26:39,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 145 transitions, 398 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:26:39,425 INFO L231 Difference]: Finished difference. Result has 134 places, 133 transitions, 332 flow [2022-11-18 18:26:39,425 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=134, PETRI_TRANSITIONS=133} [2022-11-18 18:26:39,430 INFO L288 CegarLoopForPetriNet]: 158 programPoint places, -24 predicate places. [2022-11-18 18:26:39,433 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 133 transitions, 332 flow [2022-11-18 18:26:39,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:39,434 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:26:39,434 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:39,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:26:39,435 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 18:26:39,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:39,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1705714588, now seen corresponding path program 1 times [2022-11-18 18:26:39,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:39,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718033693] [2022-11-18 18:26:39,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:39,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:39,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:39,512 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 18:26:39,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:39,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718033693] [2022-11-18 18:26:39,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718033693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:39,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:39,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:26:39,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544488161] [2022-11-18 18:26:39,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:39,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:26:39,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:39,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:26:39,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:39,518 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 182 [2022-11-18 18:26:39,518 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 133 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:39,519 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:26:39,519 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 182 [2022-11-18 18:26:39,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:26:42,142 INFO L130 PetriNetUnfolder]: 4521/14546 cut-off events. [2022-11-18 18:26:42,142 INFO L131 PetriNetUnfolder]: For 912/915 co-relation queries the response was YES. [2022-11-18 18:26:42,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23500 conditions, 14546 events. 4521/14546 cut-off events. For 912/915 co-relation queries the response was YES. Maximal size of possible extension queue 521. Compared 162131 event pairs, 1239 based on Foata normal form. 0/11752 useless extension candidates. Maximal degree in co-relation 23493. Up to 3532 conditions per place. [2022-11-18 18:26:42,411 INFO L137 encePairwiseOnDemand]: 171/182 looper letters, 36 selfloop transitions, 8 changer transitions 0/153 dead transitions. [2022-11-18 18:26:42,412 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 153 transitions, 468 flow [2022-11-18 18:26:42,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:26:42,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:26:42,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 413 transitions. [2022-11-18 18:26:42,414 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7564102564102564 [2022-11-18 18:26:42,414 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 413 transitions. [2022-11-18 18:26:42,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 413 transitions. [2022-11-18 18:26:42,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:26:42,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 413 transitions. [2022-11-18 18:26:42,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:42,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:42,418 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:42,418 INFO L175 Difference]: Start difference. First operand has 134 places, 133 transitions, 332 flow. Second operand 3 states and 413 transitions. [2022-11-18 18:26:42,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 153 transitions, 468 flow [2022-11-18 18:26:42,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 153 transitions, 452 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:26:42,428 INFO L231 Difference]: Finished difference. Result has 136 places, 141 transitions, 386 flow [2022-11-18 18:26:42,428 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=386, PETRI_PLACES=136, PETRI_TRANSITIONS=141} [2022-11-18 18:26:42,429 INFO L288 CegarLoopForPetriNet]: 158 programPoint places, -22 predicate places. [2022-11-18 18:26:42,429 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 141 transitions, 386 flow [2022-11-18 18:26:42,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:42,430 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:26:42,430 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] [2022-11-18 18:26:42,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 18:26:42,431 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 18:26:42,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:42,431 INFO L85 PathProgramCache]: Analyzing trace with hash -660700989, now seen corresponding path program 1 times [2022-11-18 18:26:42,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:42,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315690578] [2022-11-18 18:26:42,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:42,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:42,464 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 18:26:42,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:42,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315690578] [2022-11-18 18:26:42,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315690578] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:42,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:42,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:26:42,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128504876] [2022-11-18 18:26:42,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:42,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:26:42,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:42,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:26:42,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:42,468 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 182 [2022-11-18 18:26:42,468 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 141 transitions, 386 flow. Second operand has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:42,469 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:26:42,469 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 182 [2022-11-18 18:26:42,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:26:44,580 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([620] L708-4-->L708-5: Formula: (= |v_thr2Thread2of2ForFork0_#t~nondet6#1_3| |v_#race~a~0_4|) InVars {thr2Thread2of2ForFork0_#t~nondet6#1=|v_thr2Thread2of2ForFork0_#t~nondet6#1_3|} OutVars{#race~a~0=|v_#race~a~0_4|, thr2Thread2of2ForFork0_#t~nondet6#1=|v_thr2Thread2of2ForFork0_#t~nondet6#1_3|} AuxVars[] AssignedVars[#race~a~0][93], [thr2Thread1of2ForFork0InUse, thr2Thread2of2ForFork0InUse, 101#L707true, 132#L730-4true, 74#L708-5true, thr1Thread1of2ForFork1InUse, Black: 193#true, 195#(= |#race~b~0| 0), 199#true, 184#true, 126#L720-2true, Black: 189#(= |#race~a~0| 0)]) [2022-11-18 18:26:44,581 INFO L383 tUnfolder$Statistics]: this new event has 92 ancestors and is cut-off event [2022-11-18 18:26:44,581 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-18 18:26:44,581 INFO L386 tUnfolder$Statistics]: existing Event has 92 ancestors and is cut-off event [2022-11-18 18:26:44,581 INFO L386 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-11-18 18:26:44,582 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([620] L708-4-->L708-5: Formula: (= |v_thr2Thread2of2ForFork0_#t~nondet6#1_3| |v_#race~a~0_4|) InVars {thr2Thread2of2ForFork0_#t~nondet6#1=|v_thr2Thread2of2ForFork0_#t~nondet6#1_3|} OutVars{#race~a~0=|v_#race~a~0_4|, thr2Thread2of2ForFork0_#t~nondet6#1=|v_thr2Thread2of2ForFork0_#t~nondet6#1_3|} AuxVars[] AssignedVars[#race~a~0][93], [thr2Thread1of2ForFork0InUse, thr2Thread2of2ForFork0InUse, 101#L707true, 132#L730-4true, 74#L708-5true, thr1Thread1of2ForFork1InUse, 195#(= |#race~b~0| 0), Black: 193#true, 199#true, 7#L720-3true, 184#true, Black: 189#(= |#race~a~0| 0)]) [2022-11-18 18:26:44,582 INFO L383 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-11-18 18:26:44,582 INFO L386 tUnfolder$Statistics]: existing Event has 62 ancestors and is cut-off event [2022-11-18 18:26:44,582 INFO L386 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-11-18 18:26:44,582 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-18 18:26:44,639 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([620] L708-4-->L708-5: Formula: (= |v_thr2Thread2of2ForFork0_#t~nondet6#1_3| |v_#race~a~0_4|) InVars {thr2Thread2of2ForFork0_#t~nondet6#1=|v_thr2Thread2of2ForFork0_#t~nondet6#1_3|} OutVars{#race~a~0=|v_#race~a~0_4|, thr2Thread2of2ForFork0_#t~nondet6#1=|v_thr2Thread2of2ForFork0_#t~nondet6#1_3|} AuxVars[] AssignedVars[#race~a~0][93], [thr2Thread1of2ForFork0InUse, thr2Thread2of2ForFork0InUse, 132#L730-4true, 74#L708-5true, thr1Thread1of2ForFork1InUse, Black: 193#true, 195#(= |#race~b~0| 0), 199#true, 184#true, 173#L707-1true, 126#L720-2true, Black: 189#(= |#race~a~0| 0)]) [2022-11-18 18:26:44,639 INFO L383 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-11-18 18:26:44,639 INFO L386 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-11-18 18:26:44,639 INFO L386 tUnfolder$Statistics]: existing Event has 62 ancestors and is cut-off event [2022-11-18 18:26:44,640 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-18 18:26:44,640 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([620] L708-4-->L708-5: Formula: (= |v_thr2Thread2of2ForFork0_#t~nondet6#1_3| |v_#race~a~0_4|) InVars {thr2Thread2of2ForFork0_#t~nondet6#1=|v_thr2Thread2of2ForFork0_#t~nondet6#1_3|} OutVars{#race~a~0=|v_#race~a~0_4|, thr2Thread2of2ForFork0_#t~nondet6#1=|v_thr2Thread2of2ForFork0_#t~nondet6#1_3|} AuxVars[] AssignedVars[#race~a~0][93], [thr2Thread1of2ForFork0InUse, thr2Thread2of2ForFork0InUse, 132#L730-4true, 74#L708-5true, thr1Thread1of2ForFork1InUse, 195#(= |#race~b~0| 0), Black: 193#true, 199#true, 7#L720-3true, 184#true, 173#L707-1true, Black: 189#(= |#race~a~0| 0)]) [2022-11-18 18:26:44,640 INFO L383 tUnfolder$Statistics]: this new event has 94 ancestors and is cut-off event [2022-11-18 18:26:44,640 INFO L386 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2022-11-18 18:26:44,640 INFO L386 tUnfolder$Statistics]: existing Event has 63 ancestors and is cut-off event [2022-11-18 18:26:44,640 INFO L386 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-11-18 18:26:45,560 INFO L130 PetriNetUnfolder]: 5661/18564 cut-off events. [2022-11-18 18:26:45,561 INFO L131 PetriNetUnfolder]: For 983/986 co-relation queries the response was YES. [2022-11-18 18:26:45,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30805 conditions, 18564 events. 5661/18564 cut-off events. For 983/986 co-relation queries the response was YES. Maximal size of possible extension queue 650. Compared 213854 event pairs, 2860 based on Foata normal form. 0/15358 useless extension candidates. Maximal degree in co-relation 30797. Up to 6564 conditions per place. [2022-11-18 18:26:45,768 INFO L137 encePairwiseOnDemand]: 176/182 looper letters, 31 selfloop transitions, 5 changer transitions 0/154 dead transitions. [2022-11-18 18:26:45,769 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 154 transitions, 489 flow [2022-11-18 18:26:45,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:26:45,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:26:45,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 415 transitions. [2022-11-18 18:26:45,772 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.76007326007326 [2022-11-18 18:26:45,773 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 415 transitions. [2022-11-18 18:26:45,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 415 transitions. [2022-11-18 18:26:45,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:26:45,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 415 transitions. [2022-11-18 18:26:45,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:45,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:45,778 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:45,778 INFO L175 Difference]: Start difference. First operand has 136 places, 141 transitions, 386 flow. Second operand 3 states and 415 transitions. [2022-11-18 18:26:45,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 154 transitions, 489 flow [2022-11-18 18:26:45,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 154 transitions, 473 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:26:45,789 INFO L231 Difference]: Finished difference. Result has 138 places, 145 transitions, 408 flow [2022-11-18 18:26:45,790 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=408, PETRI_PLACES=138, PETRI_TRANSITIONS=145} [2022-11-18 18:26:45,791 INFO L288 CegarLoopForPetriNet]: 158 programPoint places, -20 predicate places. [2022-11-18 18:26:45,792 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 145 transitions, 408 flow [2022-11-18 18:26:45,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:45,792 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:26:45,792 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:45,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 18:26:45,793 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 18:26:45,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:45,793 INFO L85 PathProgramCache]: Analyzing trace with hash -2068306680, now seen corresponding path program 1 times [2022-11-18 18:26:45,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:45,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315778576] [2022-11-18 18:26:45,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:45,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:26:45,830 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:26:45,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:26:45,854 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:26:45,854 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 18:26:45,854 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (55 of 56 remaining) [2022-11-18 18:26:45,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (54 of 56 remaining) [2022-11-18 18:26:45,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (53 of 56 remaining) [2022-11-18 18:26:45,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (52 of 56 remaining) [2022-11-18 18:26:45,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (51 of 56 remaining) [2022-11-18 18:26:45,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (50 of 56 remaining) [2022-11-18 18:26:45,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (49 of 56 remaining) [2022-11-18 18:26:45,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (48 of 56 remaining) [2022-11-18 18:26:45,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (47 of 56 remaining) [2022-11-18 18:26:45,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (46 of 56 remaining) [2022-11-18 18:26:45,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (45 of 56 remaining) [2022-11-18 18:26:45,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (44 of 56 remaining) [2022-11-18 18:26:45,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (43 of 56 remaining) [2022-11-18 18:26:45,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (42 of 56 remaining) [2022-11-18 18:26:45,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (41 of 56 remaining) [2022-11-18 18:26:45,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (40 of 56 remaining) [2022-11-18 18:26:45,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (39 of 56 remaining) [2022-11-18 18:26:45,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (38 of 56 remaining) [2022-11-18 18:26:45,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (37 of 56 remaining) [2022-11-18 18:26:45,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 56 remaining) [2022-11-18 18:26:45,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (35 of 56 remaining) [2022-11-18 18:26:45,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (34 of 56 remaining) [2022-11-18 18:26:45,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (33 of 56 remaining) [2022-11-18 18:26:45,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (32 of 56 remaining) [2022-11-18 18:26:45,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (31 of 56 remaining) [2022-11-18 18:26:45,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (30 of 56 remaining) [2022-11-18 18:26:45,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (29 of 56 remaining) [2022-11-18 18:26:45,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (28 of 56 remaining) [2022-11-18 18:26:45,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (27 of 56 remaining) [2022-11-18 18:26:45,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (26 of 56 remaining) [2022-11-18 18:26:45,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (25 of 56 remaining) [2022-11-18 18:26:45,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (24 of 56 remaining) [2022-11-18 18:26:45,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (23 of 56 remaining) [2022-11-18 18:26:45,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (22 of 56 remaining) [2022-11-18 18:26:45,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (21 of 56 remaining) [2022-11-18 18:26:45,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (20 of 56 remaining) [2022-11-18 18:26:45,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (19 of 56 remaining) [2022-11-18 18:26:45,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (18 of 56 remaining) [2022-11-18 18:26:45,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (17 of 56 remaining) [2022-11-18 18:26:45,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (16 of 56 remaining) [2022-11-18 18:26:45,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (15 of 56 remaining) [2022-11-18 18:26:45,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (14 of 56 remaining) [2022-11-18 18:26:45,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (13 of 56 remaining) [2022-11-18 18:26:45,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (12 of 56 remaining) [2022-11-18 18:26:45,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 56 remaining) [2022-11-18 18:26:45,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 56 remaining) [2022-11-18 18:26:45,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 56 remaining) [2022-11-18 18:26:45,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 56 remaining) [2022-11-18 18:26:45,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 56 remaining) [2022-11-18 18:26:45,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 56 remaining) [2022-11-18 18:26:45,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 56 remaining) [2022-11-18 18:26:45,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 56 remaining) [2022-11-18 18:26:45,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (3 of 56 remaining) [2022-11-18 18:26:45,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 56 remaining) [2022-11-18 18:26:45,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (1 of 56 remaining) [2022-11-18 18:26:45,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (0 of 56 remaining) [2022-11-18 18:26:45,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 18:26:45,865 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-18 18:26:45,871 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 18:26:45,872 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-18 18:26:45,937 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 18:26:45,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 252 places, 254 transitions, 550 flow [2022-11-18 18:26:45,998 INFO L130 PetriNetUnfolder]: 13/244 cut-off events. [2022-11-18 18:26:45,998 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-18 18:26:46,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 244 events. 13/244 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 668 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 258. Up to 8 conditions per place. [2022-11-18 18:26:46,002 INFO L82 GeneralOperation]: Start removeDead. Operand has 252 places, 254 transitions, 550 flow [2022-11-18 18:26:46,007 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 207 places, 207 transitions, 438 flow [2022-11-18 18:26:46,008 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:26:46,009 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;@29af873b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:26:46,009 INFO L358 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2022-11-18 18:26:46,013 INFO L130 PetriNetUnfolder]: 2/32 cut-off events. [2022-11-18 18:26:46,013 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:26:46,013 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:26:46,013 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 18:26:46,013 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-18 18:26:46,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:46,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1431061868, now seen corresponding path program 1 times [2022-11-18 18:26:46,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:46,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256744990] [2022-11-18 18:26:46,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:46,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:46,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:46,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:46,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256744990] [2022-11-18 18:26:46,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256744990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:46,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:46,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 18:26:46,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155783755] [2022-11-18 18:26:46,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:46,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 18:26:46,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:46,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 18:26:46,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 18:26:46,036 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 254 [2022-11-18 18:26:46,036 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 207 transitions, 438 flow. Second operand has 2 states, 2 states have (on average 193.0) internal successors, (386), 2 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:46,037 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:26:46,037 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 254 [2022-11-18 18:26:46,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:26:46,489 INFO L130 PetriNetUnfolder]: 337/2208 cut-off events. [2022-11-18 18:26:46,489 INFO L131 PetriNetUnfolder]: For 186/186 co-relation queries the response was YES. [2022-11-18 18:26:46,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2804 conditions, 2208 events. 337/2208 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 17127 event pairs, 195 based on Foata normal form. 424/2218 useless extension candidates. Maximal degree in co-relation 2773. Up to 454 conditions per place. [2022-11-18 18:26:46,525 INFO L137 encePairwiseOnDemand]: 227/254 looper letters, 12 selfloop transitions, 0 changer transitions 0/166 dead transitions. [2022-11-18 18:26:46,525 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 166 transitions, 380 flow [2022-11-18 18:26:46,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 18:26:46,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-18 18:26:46,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 423 transitions. [2022-11-18 18:26:46,527 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8326771653543307 [2022-11-18 18:26:46,527 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 423 transitions. [2022-11-18 18:26:46,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 423 transitions. [2022-11-18 18:26:46,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:26:46,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 423 transitions. [2022-11-18 18:26:46,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 211.5) internal successors, (423), 2 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:46,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:46,530 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:46,531 INFO L175 Difference]: Start difference. First operand has 207 places, 207 transitions, 438 flow. Second operand 2 states and 423 transitions. [2022-11-18 18:26:46,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 166 transitions, 380 flow [2022-11-18 18:26:46,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 166 transitions, 373 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-11-18 18:26:46,534 INFO L231 Difference]: Finished difference. Result has 172 places, 166 transitions, 349 flow [2022-11-18 18:26:46,535 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=349, PETRI_PLACES=172, PETRI_TRANSITIONS=166} [2022-11-18 18:26:46,536 INFO L288 CegarLoopForPetriNet]: 207 programPoint places, -35 predicate places. [2022-11-18 18:26:46,537 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 166 transitions, 349 flow [2022-11-18 18:26:46,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 193.0) internal successors, (386), 2 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:46,537 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:26:46,537 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] [2022-11-18 18:26:46,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 18:26:46,538 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-18 18:26:46,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:46,538 INFO L85 PathProgramCache]: Analyzing trace with hash -860885673, now seen corresponding path program 1 times [2022-11-18 18:26:46,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:46,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24526005] [2022-11-18 18:26:46,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:46,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:46,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:46,577 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 18:26:46,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:46,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24526005] [2022-11-18 18:26:46,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24526005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:46,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:46,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:26:46,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420568453] [2022-11-18 18:26:46,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:46,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:26:46,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:46,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:26:46,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:46,580 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 254 [2022-11-18 18:26:46,581 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 166 transitions, 349 flow. Second operand has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:46,581 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:26:46,581 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 254 [2022-11-18 18:26:46,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:26:55,893 INFO L130 PetriNetUnfolder]: 23694/66111 cut-off events. [2022-11-18 18:26:55,894 INFO L131 PetriNetUnfolder]: For 2496/2496 co-relation queries the response was YES. [2022-11-18 18:26:56,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100803 conditions, 66111 events. 23694/66111 cut-off events. For 2496/2496 co-relation queries the response was YES. Maximal size of possible extension queue 1898. Compared 864665 event pairs, 7129 based on Foata normal form. 0/52956 useless extension candidates. Maximal degree in co-relation 100797. Up to 17233 conditions per place. [2022-11-18 18:26:56,733 INFO L137 encePairwiseOnDemand]: 239/254 looper letters, 50 selfloop transitions, 11 changer transitions 0/194 dead transitions. [2022-11-18 18:26:56,733 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 194 transitions, 540 flow [2022-11-18 18:26:56,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:26:56,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:26:56,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2022-11-18 18:26:56,736 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7349081364829396 [2022-11-18 18:26:56,736 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 560 transitions. [2022-11-18 18:26:56,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 560 transitions. [2022-11-18 18:26:56,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:26:56,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 560 transitions. [2022-11-18 18:26:56,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:56,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 254.0) internal successors, (1016), 4 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:56,740 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 254.0) internal successors, (1016), 4 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:56,741 INFO L175 Difference]: Start difference. First operand has 172 places, 166 transitions, 349 flow. Second operand 3 states and 560 transitions. [2022-11-18 18:26:56,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 194 transitions, 540 flow [2022-11-18 18:26:56,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 194 transitions, 540 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:26:56,745 INFO L231 Difference]: Finished difference. Result has 176 places, 177 transitions, 445 flow [2022-11-18 18:26:56,746 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=445, PETRI_PLACES=176, PETRI_TRANSITIONS=177} [2022-11-18 18:26:56,747 INFO L288 CegarLoopForPetriNet]: 207 programPoint places, -31 predicate places. [2022-11-18 18:26:56,747 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 177 transitions, 445 flow [2022-11-18 18:26:56,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:56,748 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:26:56,748 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:56,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 18:26:56,749 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-18 18:26:56,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:56,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1617590265, now seen corresponding path program 1 times [2022-11-18 18:26:56,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:56,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28052888] [2022-11-18 18:26:56,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:56,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:56,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:56,790 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 18:26:56,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:56,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28052888] [2022-11-18 18:26:56,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28052888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:56,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:56,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:26:56,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761235333] [2022-11-18 18:26:56,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:56,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:26:56,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:56,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:26:56,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:56,794 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 254 [2022-11-18 18:26:56,795 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 177 transitions, 445 flow. Second operand has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:56,795 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:26:56,795 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 254 [2022-11-18 18:26:56,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:08,784 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([869] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][82], [139#L706-2true, Black: 258#true, 192#L720-2true, 266#(= |#race~b~0| 0), 54#L708-1true, 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 90#thr2ENTRYtrue, 255#true, thr2Thread1of3ForFork0InUse, 93#L730-4true, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-11-18 18:27:08,784 INFO L383 tUnfolder$Statistics]: this new event has 94 ancestors and is cut-off event [2022-11-18 18:27:08,784 INFO L386 tUnfolder$Statistics]: existing Event has 63 ancestors and is cut-off event [2022-11-18 18:27:08,784 INFO L386 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2022-11-18 18:27:08,785 INFO L386 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-11-18 18:27:08,785 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([869] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][82], [139#L706-2true, Black: 258#true, 266#(= |#race~b~0| 0), 54#L708-1true, 150#L720-3true, 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 90#thr2ENTRYtrue, 255#true, thr2Thread1of3ForFork0InUse, 93#L730-4true, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-11-18 18:27:08,785 INFO L383 tUnfolder$Statistics]: this new event has 95 ancestors and is cut-off event [2022-11-18 18:27:08,785 INFO L386 tUnfolder$Statistics]: existing Event has 64 ancestors and is cut-off event [2022-11-18 18:27:08,785 INFO L386 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2022-11-18 18:27:08,786 INFO L386 tUnfolder$Statistics]: existing Event has 95 ancestors and is cut-off event [2022-11-18 18:27:08,786 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([869] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][82], [139#L706-2true, Black: 258#true, 266#(= |#race~b~0| 0), 54#L708-1true, 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 90#thr2ENTRYtrue, 255#true, thr2Thread1of3ForFork0InUse, 98#L721-1true, 93#L730-4true, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-11-18 18:27:08,786 INFO L383 tUnfolder$Statistics]: this new event has 97 ancestors and is cut-off event [2022-11-18 18:27:08,786 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-18 18:27:08,786 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 18:27:08,787 INFO L386 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-11-18 18:27:09,296 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([869] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][82], [139#L706-2true, 113#L719-2true, Black: 258#true, 266#(= |#race~b~0| 0), 54#L708-1true, 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 90#thr2ENTRYtrue, 255#true, thr2Thread1of3ForFork0InUse, 93#L730-4true, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-11-18 18:27:09,296 INFO L383 tUnfolder$Statistics]: this new event has 99 ancestors and is cut-off event [2022-11-18 18:27:09,296 INFO L386 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-11-18 18:27:09,296 INFO L386 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-11-18 18:27:09,297 INFO L386 tUnfolder$Statistics]: existing Event has 99 ancestors and is cut-off event [2022-11-18 18:27:11,879 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([869] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][82], [139#L706-2true, 114#L706-2true, Black: 258#true, 266#(= |#race~b~0| 0), 54#L708-1true, 150#L720-3true, 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, 93#L730-4true, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-11-18 18:27:11,879 INFO L383 tUnfolder$Statistics]: this new event has 98 ancestors and is cut-off event [2022-11-18 18:27:11,879 INFO L386 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-11-18 18:27:11,880 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-11-18 18:27:11,880 INFO L386 tUnfolder$Statistics]: existing Event has 75 ancestors and is cut-off event [2022-11-18 18:27:11,880 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([869] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][82], [139#L706-2true, 114#L706-2true, Black: 258#true, 192#L720-2true, 266#(= |#race~b~0| 0), 54#L708-1true, 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, 93#L730-4true, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-11-18 18:27:11,880 INFO L383 tUnfolder$Statistics]: this new event has 97 ancestors and is cut-off event [2022-11-18 18:27:11,880 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 18:27:11,880 INFO L386 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-11-18 18:27:11,880 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-18 18:27:11,880 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([869] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][82], [139#L706-2true, 114#L706-2true, Black: 258#true, 266#(= |#race~b~0| 0), 54#L708-1true, 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, 98#L721-1true, 93#L730-4true, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-11-18 18:27:11,880 INFO L383 tUnfolder$Statistics]: this new event has 100 ancestors and is cut-off event [2022-11-18 18:27:11,880 INFO L386 tUnfolder$Statistics]: existing Event has 77 ancestors and is cut-off event [2022-11-18 18:27:11,880 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-18 18:27:11,881 INFO L386 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-11-18 18:27:12,240 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([869] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][82], [139#L706-2true, 113#L719-2true, 114#L706-2true, Black: 258#true, 266#(= |#race~b~0| 0), 54#L708-1true, 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, 93#L730-4true, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-11-18 18:27:12,240 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 18:27:12,240 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 18:27:12,241 INFO L386 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-11-18 18:27:12,241 INFO L386 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-11-18 18:27:13,652 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [139#L706-2true, 113#L719-2true, 99#L707-1true, Black: 258#true, 266#(= |#race~b~0| 0), 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, 93#L730-4true, thr2Thread2of3ForFork0InUse, 176#L708-1true, thr2Thread3of3ForFork0InUse]) [2022-11-18 18:27:13,652 INFO L383 tUnfolder$Statistics]: this new event has 104 ancestors and is cut-off event [2022-11-18 18:27:13,653 INFO L386 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-11-18 18:27:13,653 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-18 18:27:13,653 INFO L386 tUnfolder$Statistics]: existing Event has 73 ancestors and is cut-off event [2022-11-18 18:27:13,653 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [139#L706-2true, 99#L707-1true, Black: 258#true, 266#(= |#race~b~0| 0), 150#L720-3true, 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, 93#L730-4true, thr2Thread2of3ForFork0InUse, 176#L708-1true, thr2Thread3of3ForFork0InUse]) [2022-11-18 18:27:13,653 INFO L383 tUnfolder$Statistics]: this new event has 100 ancestors and is cut-off event [2022-11-18 18:27:13,653 INFO L386 tUnfolder$Statistics]: existing Event has 77 ancestors and is cut-off event [2022-11-18 18:27:13,653 INFO L386 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-11-18 18:27:13,653 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-18 18:27:13,653 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [139#L706-2true, 99#L707-1true, Black: 258#true, 192#L720-2true, 266#(= |#race~b~0| 0), 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, 93#L730-4true, thr2Thread2of3ForFork0InUse, 176#L708-1true, thr2Thread3of3ForFork0InUse]) [2022-11-18 18:27:13,653 INFO L383 tUnfolder$Statistics]: this new event has 99 ancestors and is cut-off event [2022-11-18 18:27:13,653 INFO L386 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-11-18 18:27:13,654 INFO L386 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-11-18 18:27:13,654 INFO L386 tUnfolder$Statistics]: existing Event has 99 ancestors and is cut-off event [2022-11-18 18:27:13,654 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [139#L706-2true, 99#L707-1true, Black: 258#true, 266#(= |#race~b~0| 0), 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, 98#L721-1true, 93#L730-4true, thr2Thread2of3ForFork0InUse, 176#L708-1true, thr2Thread3of3ForFork0InUse]) [2022-11-18 18:27:13,654 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 18:27:13,654 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 18:27:13,654 INFO L386 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-11-18 18:27:13,654 INFO L386 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-11-18 18:27:27,495 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [113#L719-2true, Black: 258#true, 266#(= |#race~b~0| 0), 260#(= |#race~a~0| 0), 183#L708-2true, 124#L708-5true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, 93#L730-4true, thr2Thread2of3ForFork0InUse, 176#L708-1true, thr2Thread3of3ForFork0InUse]) [2022-11-18 18:27:27,495 INFO L383 tUnfolder$Statistics]: this new event has 115 ancestors and is cut-off event [2022-11-18 18:27:27,495 INFO L386 tUnfolder$Statistics]: existing Event has 84 ancestors and is cut-off event [2022-11-18 18:27:27,495 INFO L386 tUnfolder$Statistics]: existing Event has 84 ancestors and is cut-off event [2022-11-18 18:27:27,496 INFO L386 tUnfolder$Statistics]: existing Event has 92 ancestors and is cut-off event