./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF --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 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:31:58,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:31:58,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:31:59,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:31:59,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:31:59,022 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:31:59,024 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:31:59,026 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:31:59,029 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:31:59,030 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:31:59,031 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:31:59,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:31:59,033 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:31:59,035 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:31:59,037 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:31:59,038 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:31:59,039 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:31:59,040 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:31:59,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:31:59,045 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:31:59,047 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:31:59,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:31:59,050 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:31:59,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:31:59,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:31:59,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:31:59,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:31:59,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:31:59,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:31:59,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:31:59,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:31:59,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:31:59,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:31:59,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:31:59,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:31:59,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:31:59,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:31:59,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:31:59,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:31:59,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:31:59,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:31:59,069 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-11-20 05:31:59,096 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:31:59,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:31:59,096 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:31:59,097 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:31:59,097 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 05:31:59,098 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 05:31:59,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:31:59,099 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:31:59,099 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:31:59,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:31:59,100 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 05:31:59,100 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 05:31:59,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:31:59,101 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 05:31:59,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:31:59,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 05:31:59,102 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 05:31:59,102 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 05:31:59,102 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-20 05:31:59,102 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 05:31:59,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:31:59,103 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:31:59,103 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 05:31:59,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:31:59,104 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:31:59,104 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 05:31:59,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:31:59,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:31:59,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 05:31:59,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 05:31:59,106 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:31:59,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 05:31:59,106 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 05:31:59,107 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 05:31:59,107 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 05:31:59,107 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:31:59,108 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_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e [2021-11-20 05:31:59,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:31:59,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:31:59,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:31:59,385 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:31:59,386 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:31:59,387 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2021-11-20 05:31:59,456 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/data/42bb057e4/cb5361d31c964362adc918ff6e96211e/FLAG1627f384e [2021-11-20 05:32:00,032 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:32:00,033 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2021-11-20 05:32:00,063 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/data/42bb057e4/cb5361d31c964362adc918ff6e96211e/FLAG1627f384e [2021-11-20 05:32:00,335 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/data/42bb057e4/cb5361d31c964362adc918ff6e96211e [2021-11-20 05:32:00,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:32:00,340 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:32:00,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:32:00,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:32:00,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:32:00,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:32:00" (1/1) ... [2021-11-20 05:32:00,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e28de8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:00, skipping insertion in model container [2021-11-20 05:32:00,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:32:00" (1/1) ... [2021-11-20 05:32:00,364 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:32:00,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:32:00,986 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:32:01,012 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:32:01,052 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:32:01,135 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:32:01,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:01 WrapperNode [2021-11-20 05:32:01,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:32:01,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:32:01,137 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:32:01,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:32:01,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:01" (1/1) ... [2021-11-20 05:32:01,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:01" (1/1) ... [2021-11-20 05:32:01,215 INFO L137 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 88 [2021-11-20 05:32:01,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:32:01,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:32:01,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:32:01,222 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:32:01,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:01" (1/1) ... [2021-11-20 05:32:01,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:01" (1/1) ... [2021-11-20 05:32:01,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:01" (1/1) ... [2021-11-20 05:32:01,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:01" (1/1) ... [2021-11-20 05:32:01,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:01" (1/1) ... [2021-11-20 05:32:01,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:01" (1/1) ... [2021-11-20 05:32:01,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:01" (1/1) ... [2021-11-20 05:32:01,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:32:01,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:32:01,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:32:01,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:32:01,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:01" (1/1) ... [2021-11-20 05:32:01,302 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:32:01,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:32:01,339 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 05:32:01,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 05:32:01,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 05:32:01,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 05:32:01,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 05:32:01,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 05:32:01,378 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-20 05:32:01,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:32:01,378 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-20 05:32:01,378 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-20 05:32:01,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:32:01,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:32:01,380 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-20 05:32:01,507 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:32:01,508 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:32:01,874 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:32:01,883 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:32:01,883 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 05:32:01,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:32:01 BoogieIcfgContainer [2021-11-20 05:32:01,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:32:01,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 05:32:01,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 05:32:01,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 05:32:01,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:32:00" (1/3) ... [2021-11-20 05:32:01,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3593a994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:32:01, skipping insertion in model container [2021-11-20 05:32:01,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:01" (2/3) ... [2021-11-20 05:32:01,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3593a994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:32:01, skipping insertion in model container [2021-11-20 05:32:01,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:32:01" (3/3) ... [2021-11-20 05:32:01,894 INFO L111 eAbstractionObserver]: Analyzing ICFG 06-symbeq_06-tricky_address1.i [2021-11-20 05:32:01,899 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-20 05:32:01,899 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 05:32:01,900 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-20 05:32:01,900 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-20 05:32:01,942 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,942 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,942 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,942 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,943 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,943 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,943 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,943 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,944 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,944 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,944 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,944 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,944 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,945 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,945 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,945 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,945 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,945 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,946 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,946 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,946 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,946 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,947 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,947 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,947 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,947 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,947 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,948 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,948 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,948 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,948 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,948 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,949 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,949 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,949 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,949 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,949 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,950 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,950 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,950 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,950 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,950 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,951 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,951 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,951 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,951 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,951 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,952 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,952 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,952 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,952 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,952 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,953 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,953 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,953 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,953 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,954 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,954 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,954 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,954 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,954 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,954 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,955 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,955 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,955 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,955 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,956 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,956 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,956 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,956 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,956 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,957 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,957 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,957 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,957 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,958 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,958 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,958 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,958 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,958 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,958 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,959 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,959 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,959 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,959 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,959 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,961 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,961 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,961 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,961 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,961 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,962 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,962 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,962 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,962 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,962 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,963 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,963 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,963 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,963 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,963 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,964 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,964 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,964 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,964 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,964 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,964 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,965 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,965 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,965 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,965 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,965 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,966 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,966 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,966 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,966 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,966 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,967 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,967 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,967 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,967 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,967 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,968 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,968 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,968 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,968 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,968 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,972 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,972 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,972 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,973 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,973 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,973 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,973 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,973 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,974 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,974 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,974 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,974 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,974 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,975 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:32:01,977 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-20 05:32:02,026 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 05:32:02,034 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 05:32:02,034 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-20 05:32:02,046 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 103 transitions, 211 flow [2021-11-20 05:32:02,107 INFO L129 PetriNetUnfolder]: 4/102 cut-off events. [2021-11-20 05:32:02,107 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 05:32:02,112 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 102 events. 4/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2021-11-20 05:32:02,113 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 103 transitions, 211 flow [2021-11-20 05:32:02,121 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 102 transitions, 207 flow [2021-11-20 05:32:02,153 INFO L129 PetriNetUnfolder]: 4/57 cut-off events. [2021-11-20 05:32:02,153 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 05:32:02,154 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:32:02,154 INFO L254 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] [2021-11-20 05:32:02,155 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:32:02,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:02,163 INFO L85 PathProgramCache]: Analyzing trace with hash -779087186, now seen corresponding path program 1 times [2021-11-20 05:32:02,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:02,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368987025] [2021-11-20 05:32:02,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:02,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:02,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:32:02,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:02,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368987025] [2021-11-20 05:32:02,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368987025] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:32:02,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:32:02,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:32:02,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512866956] [2021-11-20 05:32:02,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:32:02,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:32:02,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:02,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:32:02,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:32:02,442 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 103 [2021-11-20 05:32:02,446 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 102 transitions, 207 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:02,446 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:32:02,446 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 103 [2021-11-20 05:32:02,447 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:32:02,524 INFO L129 PetriNetUnfolder]: 1/103 cut-off events. [2021-11-20 05:32:02,525 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-20 05:32:02,525 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 103 events. 1/103 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 2/98 useless extension candidates. Maximal degree in co-relation 47. Up to 9 conditions per place. [2021-11-20 05:32:02,526 INFO L132 encePairwiseOnDemand]: 97/103 looper letters, 10 selfloop transitions, 2 changer transitions 1/103 dead transitions. [2021-11-20 05:32:02,527 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 103 transitions, 233 flow [2021-11-20 05:32:02,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:32:02,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-20 05:32:02,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 293 transitions. [2021-11-20 05:32:02,545 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.948220064724919 [2021-11-20 05:32:02,545 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 293 transitions. [2021-11-20 05:32:02,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 293 transitions. [2021-11-20 05:32:02,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:32:02,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 293 transitions. [2021-11-20 05:32:02,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:02,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:02,561 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:02,563 INFO L186 Difference]: Start difference. First operand has 102 places, 102 transitions, 207 flow. Second operand 3 states and 293 transitions. [2021-11-20 05:32:02,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 103 transitions, 233 flow [2021-11-20 05:32:02,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 103 transitions, 232 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-20 05:32:02,583 INFO L242 Difference]: Finished difference. Result has 104 places, 99 transitions, 210 flow [2021-11-20 05:32:02,587 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=104, PETRI_TRANSITIONS=99} [2021-11-20 05:32:02,591 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 2 predicate places. [2021-11-20 05:32:02,591 INFO L470 AbstractCegarLoop]: Abstraction has has 104 places, 99 transitions, 210 flow [2021-11-20 05:32:02,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:02,592 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:32:02,592 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:02,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 05:32:02,593 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:32:02,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:02,593 INFO L85 PathProgramCache]: Analyzing trace with hash 624473633, now seen corresponding path program 1 times [2021-11-20 05:32:02,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:02,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410203691] [2021-11-20 05:32:02,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:02,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:02,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:02,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:32:02,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:02,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410203691] [2021-11-20 05:32:02,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410203691] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:32:02,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913971658] [2021-11-20 05:32:02,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:02,725 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:32:02,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:32:02,738 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:32:02,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 05:32:02,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:02,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:32:02,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:32:03,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:32:03,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:32:03,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:32:03,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913971658] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:32:03,232 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 05:32:03,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-20 05:32:03,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399255932] [2021-11-20 05:32:03,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 05:32:03,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:32:03,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:03,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:32:03,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:32:03,242 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 103 [2021-11-20 05:32:03,245 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 99 transitions, 210 flow. Second operand has 10 states, 10 states have (on average 93.1) internal successors, (931), 10 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:03,245 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:32:03,245 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 103 [2021-11-20 05:32:03,245 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:32:03,383 INFO L129 PetriNetUnfolder]: 1/109 cut-off events. [2021-11-20 05:32:03,383 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-20 05:32:03,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 109 events. 1/109 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 75 event pairs, 0 based on Foata normal form. 2/106 useless extension candidates. Maximal degree in co-relation 112. Up to 6 conditions per place. [2021-11-20 05:32:03,387 INFO L132 encePairwiseOnDemand]: 97/103 looper letters, 11 selfloop transitions, 9 changer transitions 0/109 dead transitions. [2021-11-20 05:32:03,387 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 109 transitions, 272 flow [2021-11-20 05:32:03,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:32:03,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-20 05:32:03,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 841 transitions. [2021-11-20 05:32:03,396 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9072276159654801 [2021-11-20 05:32:03,396 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 841 transitions. [2021-11-20 05:32:03,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 841 transitions. [2021-11-20 05:32:03,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:32:03,400 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 841 transitions. [2021-11-20 05:32:03,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 93.44444444444444) internal successors, (841), 9 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:03,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 103.0) internal successors, (1030), 10 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:03,411 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 103.0) internal successors, (1030), 10 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:03,411 INFO L186 Difference]: Start difference. First operand has 104 places, 99 transitions, 210 flow. Second operand 9 states and 841 transitions. [2021-11-20 05:32:03,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 109 transitions, 272 flow [2021-11-20 05:32:03,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 109 transitions, 270 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-20 05:32:03,417 INFO L242 Difference]: Finished difference. Result has 113 places, 105 transitions, 258 flow [2021-11-20 05:32:03,418 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=258, PETRI_PLACES=113, PETRI_TRANSITIONS=105} [2021-11-20 05:32:03,418 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 11 predicate places. [2021-11-20 05:32:03,419 INFO L470 AbstractCegarLoop]: Abstraction has has 113 places, 105 transitions, 258 flow [2021-11-20 05:32:03,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 93.1) internal successors, (931), 10 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:03,420 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:32:03,420 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:03,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 05:32:03,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:32:03,645 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:32:03,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:03,645 INFO L85 PathProgramCache]: Analyzing trace with hash 653292097, now seen corresponding path program 2 times [2021-11-20 05:32:03,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:03,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142645587] [2021-11-20 05:32:03,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:03,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:03,809 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:32:03,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:03,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142645587] [2021-11-20 05:32:03,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142645587] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:32:03,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916128563] [2021-11-20 05:32:03,810 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 05:32:03,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:32:03,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:32:03,812 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:32:03,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 05:32:03,876 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-20 05:32:03,877 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:32:03,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 05:32:03,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:32:04,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-20 05:32:04,054 INFO L354 Elim1Store]: treesize reduction 39, result has 22.0 percent of original size [2021-11-20 05:32:04,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-11-20 05:32:04,144 INFO L354 Elim1Store]: treesize reduction 96, result has 20.0 percent of original size [2021-11-20 05:32:04,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 42 [2021-11-20 05:32:04,285 INFO L354 Elim1Store]: treesize reduction 172, result has 17.3 percent of original size [2021-11-20 05:32:04,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 52 treesize of output 57 [2021-11-20 05:32:04,328 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-20 05:32:04,329 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:32:04,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916128563] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:32:04,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:32:04,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2021-11-20 05:32:04,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45376100] [2021-11-20 05:32:04,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:32:04,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:32:04,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:04,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:32:04,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-20 05:32:04,332 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 103 [2021-11-20 05:32:04,333 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 105 transitions, 258 flow. Second operand has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:04,333 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:32:04,333 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 103 [2021-11-20 05:32:04,334 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:32:04,767 INFO L129 PetriNetUnfolder]: 231/768 cut-off events. [2021-11-20 05:32:04,767 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-11-20 05:32:04,772 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1305 conditions, 768 events. 231/768 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4192 event pairs, 103 based on Foata normal form. 0/699 useless extension candidates. Maximal degree in co-relation 1243. Up to 361 conditions per place. [2021-11-20 05:32:04,778 INFO L132 encePairwiseOnDemand]: 92/103 looper letters, 72 selfloop transitions, 22 changer transitions 0/163 dead transitions. [2021-11-20 05:32:04,779 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 163 transitions, 562 flow [2021-11-20 05:32:04,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:32:04,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 05:32:04,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 479 transitions. [2021-11-20 05:32:04,781 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7750809061488673 [2021-11-20 05:32:04,782 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 479 transitions. [2021-11-20 05:32:04,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 479 transitions. [2021-11-20 05:32:04,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:32:04,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 479 transitions. [2021-11-20 05:32:04,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.83333333333333) internal successors, (479), 6 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:04,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:04,789 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:04,790 INFO L186 Difference]: Start difference. First operand has 113 places, 105 transitions, 258 flow. Second operand 6 states and 479 transitions. [2021-11-20 05:32:04,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 163 transitions, 562 flow [2021-11-20 05:32:04,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 163 transitions, 556 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-11-20 05:32:04,803 INFO L242 Difference]: Finished difference. Result has 122 places, 126 transitions, 402 flow [2021-11-20 05:32:04,804 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=402, PETRI_PLACES=122, PETRI_TRANSITIONS=126} [2021-11-20 05:32:04,807 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 20 predicate places. [2021-11-20 05:32:04,807 INFO L470 AbstractCegarLoop]: Abstraction has has 122 places, 126 transitions, 402 flow [2021-11-20 05:32:04,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:04,813 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:32:04,814 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:04,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 05:32:05,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:32:05,039 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:32:05,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:05,039 INFO L85 PathProgramCache]: Analyzing trace with hash -406389930, now seen corresponding path program 1 times [2021-11-20 05:32:05,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:05,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372179916] [2021-11-20 05:32:05,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:05,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:05,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:05,163 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:32:05,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:05,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372179916] [2021-11-20 05:32:05,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372179916] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:32:05,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019577628] [2021-11-20 05:32:05,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:05,164 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:32:05,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:32:05,166 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:32:05,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 05:32:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:05,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 05:32:05,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:32:05,373 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:32:05,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:32:05,560 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:32:05,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1019577628] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:32:05,560 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 05:32:05,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2021-11-20 05:32:05,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758463732] [2021-11-20 05:32:05,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 05:32:05,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-20 05:32:05,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:05,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-20 05:32:05,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-11-20 05:32:05,567 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 103 [2021-11-20 05:32:05,571 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 126 transitions, 402 flow. Second operand has 18 states, 18 states have (on average 93.27777777777777) internal successors, (1679), 18 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:05,571 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:32:05,571 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 103 [2021-11-20 05:32:05,571 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:32:05,798 INFO L129 PetriNetUnfolder]: 31/278 cut-off events. [2021-11-20 05:32:05,799 INFO L130 PetriNetUnfolder]: For 46/51 co-relation queries the response was YES. [2021-11-20 05:32:05,800 INFO L84 FinitePrefix]: Finished finitePrefix Result has 511 conditions, 278 events. 31/278 cut-off events. For 46/51 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 833 event pairs, 4 based on Foata normal form. 4/269 useless extension candidates. Maximal degree in co-relation 371. Up to 49 conditions per place. [2021-11-20 05:32:05,801 INFO L132 encePairwiseOnDemand]: 97/103 looper letters, 19 selfloop transitions, 21 changer transitions 0/150 dead transitions. [2021-11-20 05:32:05,801 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 150 transitions, 582 flow [2021-11-20 05:32:05,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 05:32:05,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-11-20 05:32:05,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1955 transitions. [2021-11-20 05:32:05,809 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.903837263060564 [2021-11-20 05:32:05,809 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1955 transitions. [2021-11-20 05:32:05,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1955 transitions. [2021-11-20 05:32:05,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:32:05,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1955 transitions. [2021-11-20 05:32:05,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 93.0952380952381) internal successors, (1955), 21 states have internal predecessors, (1955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:05,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 103.0) internal successors, (2266), 22 states have internal predecessors, (2266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:05,824 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 103.0) internal successors, (2266), 22 states have internal predecessors, (2266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:05,824 INFO L186 Difference]: Start difference. First operand has 122 places, 126 transitions, 402 flow. Second operand 21 states and 1955 transitions. [2021-11-20 05:32:05,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 150 transitions, 582 flow [2021-11-20 05:32:05,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 150 transitions, 582 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-20 05:32:05,832 INFO L242 Difference]: Finished difference. Result has 147 places, 139 transitions, 532 flow [2021-11-20 05:32:05,833 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=532, PETRI_PLACES=147, PETRI_TRANSITIONS=139} [2021-11-20 05:32:05,834 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 45 predicate places. [2021-11-20 05:32:05,834 INFO L470 AbstractCegarLoop]: Abstraction has has 147 places, 139 transitions, 532 flow [2021-11-20 05:32:05,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 93.27777777777777) internal successors, (1679), 18 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:05,835 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:32:05,836 INFO L254 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:05,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 05:32:06,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:32:06,062 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:32:06,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:06,062 INFO L85 PathProgramCache]: Analyzing trace with hash 232143766, now seen corresponding path program 2 times [2021-11-20 05:32:06,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:06,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930822390] [2021-11-20 05:32:06,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:06,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:06,314 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:32:06,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:06,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930822390] [2021-11-20 05:32:06,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930822390] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:32:06,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896790969] [2021-11-20 05:32:06,316 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 05:32:06,316 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:32:06,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:32:06,318 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:32:06,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 05:32:06,387 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-20 05:32:06,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:32:06,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 05:32:06,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:32:06,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-20 05:32:06,540 INFO L354 Elim1Store]: treesize reduction 39, result has 22.0 percent of original size [2021-11-20 05:32:06,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-11-20 05:32:06,586 INFO L354 Elim1Store]: treesize reduction 96, result has 20.0 percent of original size [2021-11-20 05:32:06,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 42 [2021-11-20 05:32:06,650 INFO L354 Elim1Store]: treesize reduction 172, result has 17.3 percent of original size [2021-11-20 05:32:06,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 52 treesize of output 57 [2021-11-20 05:32:06,690 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-20 05:32:06,690 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:32:06,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896790969] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:32:06,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:32:06,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2021-11-20 05:32:06,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539934764] [2021-11-20 05:32:06,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:32:06,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:32:06,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:06,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:32:06,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2021-11-20 05:32:06,694 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 103 [2021-11-20 05:32:06,695 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 139 transitions, 532 flow. Second operand has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:06,695 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:32:06,695 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 103 [2021-11-20 05:32:06,695 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:32:07,150 INFO L129 PetriNetUnfolder]: 315/1034 cut-off events. [2021-11-20 05:32:07,150 INFO L130 PetriNetUnfolder]: For 265/269 co-relation queries the response was YES. [2021-11-20 05:32:07,153 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2159 conditions, 1034 events. 315/1034 cut-off events. For 265/269 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 6058 event pairs, 133 based on Foata normal form. 4/961 useless extension candidates. Maximal degree in co-relation 2009. Up to 572 conditions per place. [2021-11-20 05:32:07,159 INFO L132 encePairwiseOnDemand]: 88/103 looper letters, 73 selfloop transitions, 39 changer transitions 5/196 dead transitions. [2021-11-20 05:32:07,159 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 196 transitions, 910 flow [2021-11-20 05:32:07,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:32:07,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 05:32:07,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 468 transitions. [2021-11-20 05:32:07,162 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7572815533980582 [2021-11-20 05:32:07,162 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 468 transitions. [2021-11-20 05:32:07,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 468 transitions. [2021-11-20 05:32:07,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:32:07,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 468 transitions. [2021-11-20 05:32:07,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.0) internal successors, (468), 6 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:07,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:07,167 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:07,167 INFO L186 Difference]: Start difference. First operand has 147 places, 139 transitions, 532 flow. Second operand 6 states and 468 transitions. [2021-11-20 05:32:07,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 196 transitions, 910 flow [2021-11-20 05:32:07,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 196 transitions, 886 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-11-20 05:32:07,176 INFO L242 Difference]: Finished difference. Result has 151 places, 175 transitions, 796 flow [2021-11-20 05:32:07,177 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=796, PETRI_PLACES=151, PETRI_TRANSITIONS=175} [2021-11-20 05:32:07,177 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 49 predicate places. [2021-11-20 05:32:07,178 INFO L470 AbstractCegarLoop]: Abstraction has has 151 places, 175 transitions, 796 flow [2021-11-20 05:32:07,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:07,178 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:32:07,178 INFO L254 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:07,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-20 05:32:07,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:32:07,398 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:32:07,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:07,398 INFO L85 PathProgramCache]: Analyzing trace with hash -109360466, now seen corresponding path program 1 times [2021-11-20 05:32:07,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:07,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535555799] [2021-11-20 05:32:07,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:07,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:07,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:07,609 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:32:07,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:07,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535555799] [2021-11-20 05:32:07,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535555799] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:32:07,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370756926] [2021-11-20 05:32:07,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:07,611 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:32:07,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:32:07,612 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:32:07,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 05:32:07,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:07,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-20 05:32:07,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:32:07,892 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:32:07,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:32:08,115 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:32:08,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370756926] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:32:08,115 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 05:32:08,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2021-11-20 05:32:08,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163995698] [2021-11-20 05:32:08,116 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 05:32:08,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-20 05:32:08,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:08,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-20 05:32:08,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2021-11-20 05:32:08,121 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 103 [2021-11-20 05:32:08,124 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 175 transitions, 796 flow. Second operand has 23 states, 23 states have (on average 93.43478260869566) internal successors, (2149), 23 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:08,124 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:32:08,124 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 103 [2021-11-20 05:32:08,124 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:32:08,529 INFO L129 PetriNetUnfolder]: 103/540 cut-off events. [2021-11-20 05:32:08,529 INFO L130 PetriNetUnfolder]: For 308/321 co-relation queries the response was YES. [2021-11-20 05:32:08,532 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1206 conditions, 540 events. 103/540 cut-off events. For 308/321 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2644 event pairs, 8 based on Foata normal form. 7/527 useless extension candidates. Maximal degree in co-relation 975. Up to 116 conditions per place. [2021-11-20 05:32:08,535 INFO L132 encePairwiseOnDemand]: 97/103 looper letters, 25 selfloop transitions, 30 changer transitions 0/201 dead transitions. [2021-11-20 05:32:08,535 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 201 transitions, 1046 flow [2021-11-20 05:32:08,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-20 05:32:08,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2021-11-20 05:32:08,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2788 transitions. [2021-11-20 05:32:08,548 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9022653721682848 [2021-11-20 05:32:08,548 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2788 transitions. [2021-11-20 05:32:08,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2788 transitions. [2021-11-20 05:32:08,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:32:08,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2788 transitions. [2021-11-20 05:32:08,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 92.93333333333334) internal successors, (2788), 30 states have internal predecessors, (2788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:08,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 103.0) internal successors, (3193), 31 states have internal predecessors, (3193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:08,576 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 103.0) internal successors, (3193), 31 states have internal predecessors, (3193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:08,576 INFO L186 Difference]: Start difference. First operand has 151 places, 175 transitions, 796 flow. Second operand 30 states and 2788 transitions. [2021-11-20 05:32:08,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 201 transitions, 1046 flow [2021-11-20 05:32:08,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 201 transitions, 1014 flow, removed 16 selfloop flow, removed 0 redundant places. [2021-11-20 05:32:08,591 INFO L242 Difference]: Finished difference. Result has 183 places, 185 transitions, 916 flow [2021-11-20 05:32:08,592 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=916, PETRI_PLACES=183, PETRI_TRANSITIONS=185} [2021-11-20 05:32:08,595 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 81 predicate places. [2021-11-20 05:32:08,595 INFO L470 AbstractCegarLoop]: Abstraction has has 183 places, 185 transitions, 916 flow [2021-11-20 05:32:08,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 93.43478260869566) internal successors, (2149), 23 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:08,597 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:32:08,597 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:08,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 05:32:08,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5fe61a9-d968-427a-86e1-1c70f1e5362c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:32:08,818 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:32:08,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:08,818 INFO L85 PathProgramCache]: Analyzing trace with hash 827906497, now seen corresponding path program 2 times [2021-11-20 05:32:08,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:08,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435765138] [2021-11-20 05:32:08,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:08,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:08,971 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:32:08,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:08,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435765138] [2021-11-20 05:32:08,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435765138] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:32:08,972 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:32:08,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:32:08,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521887607] [2021-11-20 05:32:08,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:32:08,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:32:08,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:08,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:32:08,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:32:08,974 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 103 [2021-11-20 05:32:08,975 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 185 transitions, 916 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:08,975 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:32:08,975 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 103 [2021-11-20 05:32:08,975 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:32:09,353 INFO L129 PetriNetUnfolder]: 321/1076 cut-off events. [2021-11-20 05:32:09,354 INFO L130 PetriNetUnfolder]: For 786/794 co-relation queries the response was YES. [2021-11-20 05:32:09,359 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2827 conditions, 1076 events. 321/1076 cut-off events. For 786/794 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 6267 event pairs, 77 based on Foata normal form. 0/1029 useless extension candidates. Maximal degree in co-relation 2605. Up to 538 conditions per place. [2021-11-20 05:32:09,366 INFO L132 encePairwiseOnDemand]: 92/103 looper letters, 108 selfloop transitions, 40 changer transitions 0/246 dead transitions. [2021-11-20 05:32:09,366 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 246 transitions, 1538 flow [2021-11-20 05:32:09,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:32:09,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 05:32:09,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 501 transitions. [2021-11-20 05:32:09,369 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8106796116504854 [2021-11-20 05:32:09,369 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 501 transitions. [2021-11-20 05:32:09,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 501 transitions. [2021-11-20 05:32:09,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:32:09,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 501 transitions. [2021-11-20 05:32:09,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:09,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:09,374 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:09,374 INFO L186 Difference]: Start difference. First operand has 183 places, 185 transitions, 916 flow. Second operand 6 states and 501 transitions. [2021-11-20 05:32:09,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 246 transitions, 1538 flow [2021-11-20 05:32:09,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 246 transitions, 1492 flow, removed 5 selfloop flow, removed 18 redundant places. [2021-11-20 05:32:09,393 INFO L242 Difference]: Finished difference. Result has 175 places, 216 transitions, 1238 flow [2021-11-20 05:32:09,394 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1238, PETRI_PLACES=175, PETRI_TRANSITIONS=216} [2021-11-20 05:32:09,395 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 73 predicate places. [2021-11-20 05:32:09,395 INFO L470 AbstractCegarLoop]: Abstraction has has 175 places, 216 transitions, 1238 flow [2021-11-20 05:32:09,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:09,396 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:32:09,396 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:09,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 05:32:09,396 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:32:09,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:09,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1432249786, now seen corresponding path program 1 times [2021-11-20 05:32:09,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:09,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689409042] [2021-11-20 05:32:09,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:09,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:09,568 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:32:09,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:09,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689409042] [2021-11-20 05:32:09,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689409042] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:32:09,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:32:09,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:32:09,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200193518] [2021-11-20 05:32:09,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:32:09,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:32:09,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:09,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:32:09,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:32:09,572 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 103 [2021-11-20 05:32:09,572 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 216 transitions, 1238 flow. Second operand has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:09,572 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:32:09,572 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 103 [2021-11-20 05:32:09,573 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:32:10,090 INFO L129 PetriNetUnfolder]: 432/1355 cut-off events. [2021-11-20 05:32:10,091 INFO L130 PetriNetUnfolder]: For 1528/1535 co-relation queries the response was YES. [2021-11-20 05:32:10,099 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4022 conditions, 1355 events. 432/1355 cut-off events. For 1528/1535 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 8376 event pairs, 122 based on Foata normal form. 0/1322 useless extension candidates. Maximal degree in co-relation 3817. Up to 770 conditions per place. [2021-11-20 05:32:10,108 INFO L132 encePairwiseOnDemand]: 88/103 looper letters, 115 selfloop transitions, 58 changer transitions 18/287 dead transitions. [2021-11-20 05:32:10,108 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 287 transitions, 2032 flow [2021-11-20 05:32:10,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:32:10,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 05:32:10,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 494 transitions. [2021-11-20 05:32:10,111 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7993527508090615 [2021-11-20 05:32:10,111 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 494 transitions. [2021-11-20 05:32:10,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 494 transitions. [2021-11-20 05:32:10,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:32:10,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 494 transitions. [2021-11-20 05:32:10,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.33333333333333) internal successors, (494), 6 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:10,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:10,115 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:10,116 INFO L186 Difference]: Start difference. First operand has 175 places, 216 transitions, 1238 flow. Second operand 6 states and 494 transitions. [2021-11-20 05:32:10,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 287 transitions, 2032 flow [2021-11-20 05:32:10,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 287 transitions, 2014 flow, removed 9 selfloop flow, removed 0 redundant places. [2021-11-20 05:32:10,141 INFO L242 Difference]: Finished difference. Result has 185 places, 257 transitions, 1740 flow [2021-11-20 05:32:10,142 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=1220, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1740, PETRI_PLACES=185, PETRI_TRANSITIONS=257} [2021-11-20 05:32:10,145 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 83 predicate places. [2021-11-20 05:32:10,145 INFO L470 AbstractCegarLoop]: Abstraction has has 185 places, 257 transitions, 1740 flow [2021-11-20 05:32:10,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:10,146 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:32:10,146 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:10,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 05:32:10,147 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:32:10,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:10,147 INFO L85 PathProgramCache]: Analyzing trace with hash 906953438, now seen corresponding path program 1 times [2021-11-20 05:32:10,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:10,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455505179] [2021-11-20 05:32:10,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:10,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:10,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:10,743 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:32:10,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:10,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455505179] [2021-11-20 05:32:10,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455505179] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:32:10,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:32:10,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:32:10,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154334065] [2021-11-20 05:32:10,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:32:10,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:32:10,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:10,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:32:10,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:32:10,747 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2021-11-20 05:32:10,748 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 257 transitions, 1740 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:10,748 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:32:10,748 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2021-11-20 05:32:10,748 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:32:11,866 INFO L129 PetriNetUnfolder]: 602/1810 cut-off events. [2021-11-20 05:32:11,866 INFO L130 PetriNetUnfolder]: For 3025/3041 co-relation queries the response was YES. [2021-11-20 05:32:11,878 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6079 conditions, 1810 events. 602/1810 cut-off events. For 3025/3041 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 11885 event pairs, 47 based on Foata normal form. 16/1813 useless extension candidates. Maximal degree in co-relation 5856. Up to 853 conditions per place. [2021-11-20 05:32:11,891 INFO L132 encePairwiseOnDemand]: 83/103 looper letters, 209 selfloop transitions, 77 changer transitions 46/418 dead transitions. [2021-11-20 05:32:11,891 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 418 transitions, 3462 flow [2021-11-20 05:32:11,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 05:32:11,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-11-20 05:32:11,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 852 transitions. [2021-11-20 05:32:11,896 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6893203883495146 [2021-11-20 05:32:11,896 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 852 transitions. [2021-11-20 05:32:11,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 852 transitions. [2021-11-20 05:32:11,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:32:11,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 852 transitions. [2021-11-20 05:32:11,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 71.0) internal successors, (852), 12 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:11,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:11,903 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:11,904 INFO L186 Difference]: Start difference. First operand has 185 places, 257 transitions, 1740 flow. Second operand 12 states and 852 transitions. [2021-11-20 05:32:11,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 418 transitions, 3462 flow [2021-11-20 05:32:11,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 418 transitions, 3382 flow, removed 40 selfloop flow, removed 0 redundant places. [2021-11-20 05:32:11,947 INFO L242 Difference]: Finished difference. Result has 204 places, 293 transitions, 2283 flow [2021-11-20 05:32:11,947 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=1672, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2283, PETRI_PLACES=204, PETRI_TRANSITIONS=293} [2021-11-20 05:32:11,948 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 102 predicate places. [2021-11-20 05:32:11,948 INFO L470 AbstractCegarLoop]: Abstraction has has 204 places, 293 transitions, 2283 flow [2021-11-20 05:32:11,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:11,949 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:32:11,949 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:11,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 05:32:11,950 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:32:11,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:11,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1475514096, now seen corresponding path program 2 times [2021-11-20 05:32:11,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:11,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435743249] [2021-11-20 05:32:11,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:11,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:12,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:12,634 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:32:12,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:12,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435743249] [2021-11-20 05:32:12,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435743249] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:32:12,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:32:12,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-11-20 05:32:12,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103056090] [2021-11-20 05:32:12,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:32:12,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-20 05:32:12,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:12,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-20 05:32:12,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2021-11-20 05:32:12,637 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 103 [2021-11-20 05:32:12,639 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 293 transitions, 2283 flow. Second operand has 19 states, 19 states have (on average 51.526315789473685) internal successors, (979), 19 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:12,639 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:32:12,639 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 103 [2021-11-20 05:32:12,639 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:32:15,065 INFO L129 PetriNetUnfolder]: 861/2354 cut-off events. [2021-11-20 05:32:15,065 INFO L130 PetriNetUnfolder]: For 6138/6148 co-relation queries the response was YES. [2021-11-20 05:32:15,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9156 conditions, 2354 events. 861/2354 cut-off events. For 6138/6148 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 16000 event pairs, 150 based on Foata normal form. 2/2342 useless extension candidates. Maximal degree in co-relation 8923. Up to 578 conditions per place. [2021-11-20 05:32:15,101 INFO L132 encePairwiseOnDemand]: 74/103 looper letters, 271 selfloop transitions, 129 changer transitions 60/538 dead transitions. [2021-11-20 05:32:15,101 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 538 transitions, 4891 flow [2021-11-20 05:32:15,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-20 05:32:15,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-11-20 05:32:15,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1372 transitions. [2021-11-20 05:32:15,106 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6054721977052074 [2021-11-20 05:32:15,106 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1372 transitions. [2021-11-20 05:32:15,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1372 transitions. [2021-11-20 05:32:15,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:32:15,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1372 transitions. [2021-11-20 05:32:15,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 62.36363636363637) internal successors, (1372), 22 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:15,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 103.0) internal successors, (2369), 23 states have internal predecessors, (2369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:15,118 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 103.0) internal successors, (2369), 23 states have internal predecessors, (2369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:15,118 INFO L186 Difference]: Start difference. First operand has 204 places, 293 transitions, 2283 flow. Second operand 22 states and 1372 transitions. [2021-11-20 05:32:15,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 538 transitions, 4891 flow [2021-11-20 05:32:15,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 538 transitions, 4850 flow, removed 16 selfloop flow, removed 1 redundant places. [2021-11-20 05:32:15,185 INFO L242 Difference]: Finished difference. Result has 230 places, 342 transitions, 3123 flow [2021-11-20 05:32:15,186 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=2258, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=3123, PETRI_PLACES=230, PETRI_TRANSITIONS=342} [2021-11-20 05:32:15,187 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 128 predicate places. [2021-11-20 05:32:15,187 INFO L470 AbstractCegarLoop]: Abstraction has has 230 places, 342 transitions, 3123 flow [2021-11-20 05:32:15,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 51.526315789473685) internal successors, (979), 19 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:15,188 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:32:15,188 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:15,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 05:32:15,188 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:32:15,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:15,189 INFO L85 PathProgramCache]: Analyzing trace with hash 867683510, now seen corresponding path program 3 times [2021-11-20 05:32:15,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:15,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395300672] [2021-11-20 05:32:15,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:15,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:15,701 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:32:15,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:15,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395300672] [2021-11-20 05:32:15,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395300672] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:32:15,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:32:15,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:32:15,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199096396] [2021-11-20 05:32:15,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:32:15,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:32:15,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:15,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:32:15,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:32:15,704 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2021-11-20 05:32:15,705 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 342 transitions, 3123 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:15,705 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:32:15,706 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2021-11-20 05:32:15,706 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:32:17,496 INFO L129 PetriNetUnfolder]: 1316/3546 cut-off events. [2021-11-20 05:32:17,497 INFO L130 PetriNetUnfolder]: For 14084/14106 co-relation queries the response was YES. [2021-11-20 05:32:17,520 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16080 conditions, 3546 events. 1316/3546 cut-off events. For 14084/14106 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 27344 event pairs, 185 based on Foata normal form. 12/3539 useless extension candidates. Maximal degree in co-relation 15837. Up to 1152 conditions per place. [2021-11-20 05:32:17,543 INFO L132 encePairwiseOnDemand]: 85/103 looper letters, 426 selfloop transitions, 134 changer transitions 24/673 dead transitions. [2021-11-20 05:32:17,543 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 673 transitions, 7624 flow [2021-11-20 05:32:17,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 05:32:17,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-20 05:32:17,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 811 transitions. [2021-11-20 05:32:17,546 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7157987643424537 [2021-11-20 05:32:17,546 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 811 transitions. [2021-11-20 05:32:17,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 811 transitions. [2021-11-20 05:32:17,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:32:17,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 811 transitions. [2021-11-20 05:32:17,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 73.72727272727273) internal successors, (811), 11 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:17,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:17,552 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:17,552 INFO L186 Difference]: Start difference. First operand has 230 places, 342 transitions, 3123 flow. Second operand 11 states and 811 transitions. [2021-11-20 05:32:17,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 673 transitions, 7624 flow [2021-11-20 05:32:17,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 673 transitions, 7403 flow, removed 20 selfloop flow, removed 6 redundant places. [2021-11-20 05:32:17,742 INFO L242 Difference]: Finished difference. Result has 240 places, 450 transitions, 5085 flow [2021-11-20 05:32:17,742 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=3016, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5085, PETRI_PLACES=240, PETRI_TRANSITIONS=450} [2021-11-20 05:32:17,743 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 138 predicate places. [2021-11-20 05:32:17,743 INFO L470 AbstractCegarLoop]: Abstraction has has 240 places, 450 transitions, 5085 flow [2021-11-20 05:32:17,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:17,743 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:32:17,744 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:17,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 05:32:17,744 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:32:17,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:17,745 INFO L85 PathProgramCache]: Analyzing trace with hash -2079500256, now seen corresponding path program 4 times [2021-11-20 05:32:17,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:17,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498582626] [2021-11-20 05:32:17,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:17,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:17,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:18,239 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:32:18,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:18,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498582626] [2021-11-20 05:32:18,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498582626] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:32:18,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:32:18,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:32:18,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906070812] [2021-11-20 05:32:18,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:32:18,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:32:18,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:18,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:32:18,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:32:18,242 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2021-11-20 05:32:18,243 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 450 transitions, 5085 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:18,243 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:32:18,243 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2021-11-20 05:32:18,243 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:32:20,031 INFO L129 PetriNetUnfolder]: 1303/3787 cut-off events. [2021-11-20 05:32:20,031 INFO L130 PetriNetUnfolder]: For 18658/18695 co-relation queries the response was YES. [2021-11-20 05:32:20,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17473 conditions, 3787 events. 1303/3787 cut-off events. For 18658/18695 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 30789 event pairs, 197 based on Foata normal form. 16/3782 useless extension candidates. Maximal degree in co-relation 17225. Up to 1189 conditions per place. [2021-11-20 05:32:20,154 INFO L132 encePairwiseOnDemand]: 85/103 looper letters, 433 selfloop transitions, 144 changer transitions 30/696 dead transitions. [2021-11-20 05:32:20,154 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 696 transitions, 8355 flow [2021-11-20 05:32:20,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 05:32:20,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-20 05:32:20,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 773 transitions. [2021-11-20 05:32:20,157 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7504854368932039 [2021-11-20 05:32:20,157 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 773 transitions. [2021-11-20 05:32:20,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 773 transitions. [2021-11-20 05:32:20,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:32:20,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 773 transitions. [2021-11-20 05:32:20,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:20,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:20,163 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:20,163 INFO L186 Difference]: Start difference. First operand has 240 places, 450 transitions, 5085 flow. Second operand 10 states and 773 transitions. [2021-11-20 05:32:20,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 696 transitions, 8355 flow [2021-11-20 05:32:20,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 696 transitions, 8307 flow, removed 24 selfloop flow, removed 0 redundant places. [2021-11-20 05:32:20,338 INFO L242 Difference]: Finished difference. Result has 255 places, 479 transitions, 5959 flow [2021-11-20 05:32:20,339 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=5037, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5959, PETRI_PLACES=255, PETRI_TRANSITIONS=479} [2021-11-20 05:32:20,339 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 153 predicate places. [2021-11-20 05:32:20,339 INFO L470 AbstractCegarLoop]: Abstraction has has 255 places, 479 transitions, 5959 flow [2021-11-20 05:32:20,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:20,340 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:32:20,340 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:20,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 05:32:20,341 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:32:20,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:20,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1432498022, now seen corresponding path program 5 times [2021-11-20 05:32:20,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:20,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188403961] [2021-11-20 05:32:20,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:20,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:20,751 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:32:20,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:20,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188403961] [2021-11-20 05:32:20,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188403961] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:32:20,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:32:20,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:32:20,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463914037] [2021-11-20 05:32:20,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:32:20,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:32:20,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:20,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:32:20,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:32:20,753 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2021-11-20 05:32:20,754 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 479 transitions, 5959 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:20,754 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:32:20,754 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2021-11-20 05:32:20,754 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:32:22,905 INFO L129 PetriNetUnfolder]: 1315/3712 cut-off events. [2021-11-20 05:32:22,905 INFO L130 PetriNetUnfolder]: For 23899/23942 co-relation queries the response was YES. [2021-11-20 05:32:22,929 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18748 conditions, 3712 events. 1315/3712 cut-off events. For 23899/23942 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 29663 event pairs, 275 based on Foata normal form. 19/3709 useless extension candidates. Maximal degree in co-relation 18493. Up to 1946 conditions per place. [2021-11-20 05:32:22,947 INFO L132 encePairwiseOnDemand]: 83/103 looper letters, 244 selfloop transitions, 226 changer transitions 20/579 dead transitions. [2021-11-20 05:32:22,947 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 579 transitions, 7823 flow [2021-11-20 05:32:22,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 05:32:22,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-11-20 05:32:22,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 857 transitions. [2021-11-20 05:32:22,950 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6933656957928802 [2021-11-20 05:32:22,950 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 857 transitions. [2021-11-20 05:32:22,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 857 transitions. [2021-11-20 05:32:22,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:32:22,951 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 857 transitions. [2021-11-20 05:32:22,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 71.41666666666667) internal successors, (857), 12 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:22,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:22,956 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:22,956 INFO L186 Difference]: Start difference. First operand has 255 places, 479 transitions, 5959 flow. Second operand 12 states and 857 transitions. [2021-11-20 05:32:22,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 579 transitions, 7823 flow [2021-11-20 05:32:23,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 579 transitions, 7641 flow, removed 88 selfloop flow, removed 1 redundant places. [2021-11-20 05:32:23,165 INFO L242 Difference]: Finished difference. Result has 270 places, 494 transitions, 6536 flow [2021-11-20 05:32:23,166 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=5780, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=479, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=213, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6536, PETRI_PLACES=270, PETRI_TRANSITIONS=494} [2021-11-20 05:32:23,167 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 168 predicate places. [2021-11-20 05:32:23,167 INFO L470 AbstractCegarLoop]: Abstraction has has 270 places, 494 transitions, 6536 flow [2021-11-20 05:32:23,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:23,168 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:32:23,168 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:23,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 05:32:23,168 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:32:23,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:23,168 INFO L85 PathProgramCache]: Analyzing trace with hash 706483278, now seen corresponding path program 6 times [2021-11-20 05:32:23,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:23,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442776463] [2021-11-20 05:32:23,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:23,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:23,651 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:32:23,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:23,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442776463] [2021-11-20 05:32:23,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442776463] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:32:23,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:32:23,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:32:23,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037550218] [2021-11-20 05:32:23,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:32:23,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:32:23,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:23,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:32:23,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:32:23,654 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2021-11-20 05:32:23,655 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 494 transitions, 6536 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:23,655 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:32:23,655 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2021-11-20 05:32:23,655 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:32:25,751 INFO L129 PetriNetUnfolder]: 1305/3773 cut-off events. [2021-11-20 05:32:25,752 INFO L130 PetriNetUnfolder]: For 27142/27179 co-relation queries the response was YES. [2021-11-20 05:32:25,774 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19494 conditions, 3773 events. 1305/3773 cut-off events. For 27142/27179 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 30607 event pairs, 186 based on Foata normal form. 18/3772 useless extension candidates. Maximal degree in co-relation 19234. Up to 1138 conditions per place. [2021-11-20 05:32:25,791 INFO L132 encePairwiseOnDemand]: 85/103 looper letters, 473 selfloop transitions, 149 changer transitions 37/748 dead transitions. [2021-11-20 05:32:25,791 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 748 transitions, 10090 flow [2021-11-20 05:32:25,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 05:32:25,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-20 05:32:25,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 844 transitions. [2021-11-20 05:32:25,793 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7449249779346867 [2021-11-20 05:32:25,794 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 844 transitions. [2021-11-20 05:32:25,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 844 transitions. [2021-11-20 05:32:25,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:32:25,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 844 transitions. [2021-11-20 05:32:25,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 76.72727272727273) internal successors, (844), 11 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:25,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:25,799 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:25,799 INFO L186 Difference]: Start difference. First operand has 270 places, 494 transitions, 6536 flow. Second operand 11 states and 844 transitions. [2021-11-20 05:32:25,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 748 transitions, 10090 flow [2021-11-20 05:32:26,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 748 transitions, 9892 flow, removed 29 selfloop flow, removed 3 redundant places. [2021-11-20 05:32:26,113 INFO L242 Difference]: Finished difference. Result has 282 places, 516 transitions, 7138 flow [2021-11-20 05:32:26,114 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=6369, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=494, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7138, PETRI_PLACES=282, PETRI_TRANSITIONS=516} [2021-11-20 05:32:26,115 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 180 predicate places. [2021-11-20 05:32:26,115 INFO L470 AbstractCegarLoop]: Abstraction has has 282 places, 516 transitions, 7138 flow [2021-11-20 05:32:26,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:26,124 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:32:26,125 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:26,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-20 05:32:26,125 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:32:26,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:26,126 INFO L85 PathProgramCache]: Analyzing trace with hash -688765350, now seen corresponding path program 7 times [2021-11-20 05:32:26,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:26,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080065341] [2021-11-20 05:32:26,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:26,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:26,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:26,551 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:32:26,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:26,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080065341] [2021-11-20 05:32:26,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080065341] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:32:26,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:32:26,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:32:26,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942128865] [2021-11-20 05:32:26,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:32:26,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:32:26,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:26,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:32:26,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:32:26,554 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2021-11-20 05:32:26,555 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 516 transitions, 7138 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:26,556 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:32:26,556 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2021-11-20 05:32:26,556 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:32:28,739 INFO L129 PetriNetUnfolder]: 1322/3761 cut-off events. [2021-11-20 05:32:28,740 INFO L130 PetriNetUnfolder]: For 32073/32108 co-relation queries the response was YES. [2021-11-20 05:32:28,769 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20430 conditions, 3761 events. 1322/3761 cut-off events. For 32073/32108 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 30347 event pairs, 217 based on Foata normal form. 11/3754 useless extension candidates. Maximal degree in co-relation 20282. Up to 1946 conditions per place. [2021-11-20 05:32:28,783 INFO L132 encePairwiseOnDemand]: 83/103 looper letters, 268 selfloop transitions, 231 changer transitions 23/611 dead transitions. [2021-11-20 05:32:28,783 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 611 transitions, 9151 flow [2021-11-20 05:32:28,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 05:32:28,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-11-20 05:32:28,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 905 transitions. [2021-11-20 05:32:28,786 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6758775205377147 [2021-11-20 05:32:28,786 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 905 transitions. [2021-11-20 05:32:28,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 905 transitions. [2021-11-20 05:32:28,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:32:28,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 905 transitions. [2021-11-20 05:32:28,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 69.61538461538461) internal successors, (905), 13 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:28,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:28,791 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:28,791 INFO L186 Difference]: Start difference. First operand has 282 places, 516 transitions, 7138 flow. Second operand 13 states and 905 transitions. [2021-11-20 05:32:28,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 611 transitions, 9151 flow [2021-11-20 05:32:29,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 611 transitions, 9041 flow, removed 34 selfloop flow, removed 2 redundant places. [2021-11-20 05:32:29,113 INFO L242 Difference]: Finished difference. Result has 299 places, 537 transitions, 8010 flow [2021-11-20 05:32:29,114 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=7030, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=516, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=213, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=8010, PETRI_PLACES=299, PETRI_TRANSITIONS=537} [2021-11-20 05:32:29,114 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 197 predicate places. [2021-11-20 05:32:29,114 INFO L470 AbstractCegarLoop]: Abstraction has has 299 places, 537 transitions, 8010 flow [2021-11-20 05:32:29,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:29,115 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:32:29,116 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:29,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-20 05:32:29,116 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:32:29,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:29,117 INFO L85 PathProgramCache]: Analyzing trace with hash -257739324, now seen corresponding path program 1 times [2021-11-20 05:32:29,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:29,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999014063] [2021-11-20 05:32:29,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:29,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:29,518 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:32:29,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:29,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999014063] [2021-11-20 05:32:29,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999014063] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:32:29,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:32:29,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:32:29,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860463278] [2021-11-20 05:32:29,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:32:29,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:32:29,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:29,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:32:29,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:32:29,521 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2021-11-20 05:32:29,522 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 537 transitions, 8010 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:29,522 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:32:29,522 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2021-11-20 05:32:29,522 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:32:31,628 INFO L129 PetriNetUnfolder]: 1218/3656 cut-off events. [2021-11-20 05:32:31,628 INFO L130 PetriNetUnfolder]: For 35139/35175 co-relation queries the response was YES. [2021-11-20 05:32:31,661 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20403 conditions, 3656 events. 1218/3656 cut-off events. For 35139/35175 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 30023 event pairs, 121 based on Foata normal form. 16/3654 useless extension candidates. Maximal degree in co-relation 20238. Up to 1030 conditions per place. [2021-11-20 05:32:31,673 INFO L132 encePairwiseOnDemand]: 87/103 looper letters, 547 selfloop transitions, 121 changer transitions 45/810 dead transitions. [2021-11-20 05:32:31,674 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 810 transitions, 12218 flow [2021-11-20 05:32:31,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-20 05:32:31,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-11-20 05:32:31,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1171 transitions. [2021-11-20 05:32:31,677 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7105582524271845 [2021-11-20 05:32:31,677 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1171 transitions. [2021-11-20 05:32:31,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1171 transitions. [2021-11-20 05:32:31,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:32:31,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1171 transitions. [2021-11-20 05:32:31,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 73.1875) internal successors, (1171), 16 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:31,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 103.0) internal successors, (1751), 17 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:31,684 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 103.0) internal successors, (1751), 17 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:31,685 INFO L186 Difference]: Start difference. First operand has 299 places, 537 transitions, 8010 flow. Second operand 16 states and 1171 transitions. [2021-11-20 05:32:31,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 810 transitions, 12218 flow [2021-11-20 05:32:31,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 810 transitions, 11906 flow, removed 89 selfloop flow, removed 4 redundant places. [2021-11-20 05:32:31,944 INFO L242 Difference]: Finished difference. Result has 319 places, 587 transitions, 8849 flow [2021-11-20 05:32:31,945 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=7756, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=537, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=8849, PETRI_PLACES=319, PETRI_TRANSITIONS=587} [2021-11-20 05:32:31,945 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 217 predicate places. [2021-11-20 05:32:31,946 INFO L470 AbstractCegarLoop]: Abstraction has has 319 places, 587 transitions, 8849 flow [2021-11-20 05:32:31,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:31,946 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:32:31,947 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:31,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-20 05:32:31,947 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:32:31,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:31,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1073377992, now seen corresponding path program 8 times [2021-11-20 05:32:31,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:31,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217068115] [2021-11-20 05:32:31,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:31,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:31,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:32,436 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:32:32,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:32,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217068115] [2021-11-20 05:32:32,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217068115] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:32:32,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:32:32,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:32:32,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582051028] [2021-11-20 05:32:32,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:32:32,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:32:32,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:32,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:32:32,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:32:32,439 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2021-11-20 05:32:32,440 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 587 transitions, 8849 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:32,440 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:32:32,441 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2021-11-20 05:32:32,441 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:32:34,548 INFO L129 PetriNetUnfolder]: 1312/3736 cut-off events. [2021-11-20 05:32:34,548 INFO L130 PetriNetUnfolder]: For 38217/38260 co-relation queries the response was YES. [2021-11-20 05:32:34,598 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21563 conditions, 3736 events. 1312/3736 cut-off events. For 38217/38260 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 29928 event pairs, 299 based on Foata normal form. 19/3737 useless extension candidates. Maximal degree in co-relation 21383. Up to 1938 conditions per place. [2021-11-20 05:32:34,613 INFO L132 encePairwiseOnDemand]: 83/103 looper letters, 311 selfloop transitions, 256 changer transitions 23/679 dead transitions. [2021-11-20 05:32:34,613 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 679 transitions, 11144 flow [2021-11-20 05:32:34,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 05:32:34,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-20 05:32:34,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 955 transitions. [2021-11-20 05:32:34,616 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6622746185852982 [2021-11-20 05:32:34,616 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 955 transitions. [2021-11-20 05:32:34,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 955 transitions. [2021-11-20 05:32:34,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:32:34,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 955 transitions. [2021-11-20 05:32:34,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 68.21428571428571) internal successors, (955), 14 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:34,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:34,621 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:34,621 INFO L186 Difference]: Start difference. First operand has 319 places, 587 transitions, 8849 flow. Second operand 14 states and 955 transitions. [2021-11-20 05:32:34,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 679 transitions, 11144 flow [2021-11-20 05:32:34,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 679 transitions, 10877 flow, removed 20 selfloop flow, removed 4 redundant places. [2021-11-20 05:32:34,945 INFO L242 Difference]: Finished difference. Result has 332 places, 613 transitions, 9860 flow [2021-11-20 05:32:34,946 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=8610, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=587, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=233, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=9860, PETRI_PLACES=332, PETRI_TRANSITIONS=613} [2021-11-20 05:32:34,947 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 230 predicate places. [2021-11-20 05:32:34,947 INFO L470 AbstractCegarLoop]: Abstraction has has 332 places, 613 transitions, 9860 flow [2021-11-20 05:32:34,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:34,947 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:32:34,947 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:34,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-20 05:32:34,948 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:32:34,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:34,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1691019416, now seen corresponding path program 9 times [2021-11-20 05:32:34,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:34,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076148341] [2021-11-20 05:32:34,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:34,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:34,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:35,587 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:32:35,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:35,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076148341] [2021-11-20 05:32:35,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076148341] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:32:35,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:32:35,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:32:35,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327150566] [2021-11-20 05:32:35,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:32:35,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:32:35,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:35,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:32:35,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:32:35,590 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2021-11-20 05:32:35,590 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 613 transitions, 9860 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:35,590 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:32:35,590 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2021-11-20 05:32:35,591 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:32:38,021 INFO L129 PetriNetUnfolder]: 1309/3748 cut-off events. [2021-11-20 05:32:38,021 INFO L130 PetriNetUnfolder]: For 43471/43509 co-relation queries the response was YES. [2021-11-20 05:32:38,066 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22446 conditions, 3748 events. 1309/3748 cut-off events. For 43471/43509 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 30162 event pairs, 173 based on Foata normal form. 14/3742 useless extension candidates. Maximal degree in co-relation 22252. Up to 1138 conditions per place. [2021-11-20 05:32:38,080 INFO L132 encePairwiseOnDemand]: 82/103 looper letters, 479 selfloop transitions, 199 changer transitions 26/793 dead transitions. [2021-11-20 05:32:38,080 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 793 transitions, 12900 flow [2021-11-20 05:32:38,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 05:32:38,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-20 05:32:38,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 841 transitions. [2021-11-20 05:32:38,082 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7422771403353927 [2021-11-20 05:32:38,082 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 841 transitions. [2021-11-20 05:32:38,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 841 transitions. [2021-11-20 05:32:38,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:32:38,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 841 transitions. [2021-11-20 05:32:38,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 76.45454545454545) internal successors, (841), 11 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:38,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:38,087 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:38,087 INFO L186 Difference]: Start difference. First operand has 332 places, 613 transitions, 9860 flow. Second operand 11 states and 841 transitions. [2021-11-20 05:32:38,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 793 transitions, 12900 flow [2021-11-20 05:32:38,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 793 transitions, 12674 flow, removed 79 selfloop flow, removed 2 redundant places. [2021-11-20 05:32:38,432 INFO L242 Difference]: Finished difference. Result has 345 places, 626 transitions, 10445 flow [2021-11-20 05:32:38,433 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=9637, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=613, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=186, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10445, PETRI_PLACES=345, PETRI_TRANSITIONS=626} [2021-11-20 05:32:38,434 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 243 predicate places. [2021-11-20 05:32:38,434 INFO L470 AbstractCegarLoop]: Abstraction has has 345 places, 626 transitions, 10445 flow [2021-11-20 05:32:38,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:38,435 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:32:38,435 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:38,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-20 05:32:38,435 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:32:38,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:38,436 INFO L85 PathProgramCache]: Analyzing trace with hash 135886728, now seen corresponding path program 10 times [2021-11-20 05:32:38,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:38,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268647198] [2021-11-20 05:32:38,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:38,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:38,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:38,846 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:32:38,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:38,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268647198] [2021-11-20 05:32:38,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268647198] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:32:38,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:32:38,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:32:38,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474249833] [2021-11-20 05:32:38,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:32:38,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:32:38,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:38,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:32:38,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:32:38,849 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2021-11-20 05:32:38,850 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 626 transitions, 10445 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:38,850 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:32:38,850 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2021-11-20 05:32:38,850 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:32:40,936 INFO L129 PetriNetUnfolder]: 1315/3765 cut-off events. [2021-11-20 05:32:40,937 INFO L130 PetriNetUnfolder]: For 48770/48808 co-relation queries the response was YES. [2021-11-20 05:32:40,971 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23342 conditions, 3765 events. 1315/3765 cut-off events. For 48770/48808 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 30381 event pairs, 176 based on Foata normal form. 15/3760 useless extension candidates. Maximal degree in co-relation 23143. Up to 1138 conditions per place. [2021-11-20 05:32:40,981 INFO L132 encePairwiseOnDemand]: 85/103 looper letters, 498 selfloop transitions, 186 changer transitions 24/797 dead transitions. [2021-11-20 05:32:40,981 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 797 transitions, 13549 flow [2021-11-20 05:32:40,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 05:32:40,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-20 05:32:40,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 819 transitions. [2021-11-20 05:32:40,983 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7228596646072374 [2021-11-20 05:32:40,983 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 819 transitions. [2021-11-20 05:32:40,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 819 transitions. [2021-11-20 05:32:40,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:32:40,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 819 transitions. [2021-11-20 05:32:40,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 74.45454545454545) internal successors, (819), 11 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:40,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:40,986 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:40,986 INFO L186 Difference]: Start difference. First operand has 345 places, 626 transitions, 10445 flow. Second operand 11 states and 819 transitions. [2021-11-20 05:32:40,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 797 transitions, 13549 flow [2021-11-20 05:32:41,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 797 transitions, 13266 flow, removed 40 selfloop flow, removed 5 redundant places. [2021-11-20 05:32:41,354 INFO L242 Difference]: Finished difference. Result has 354 places, 637 transitions, 10924 flow [2021-11-20 05:32:41,355 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=10200, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=626, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=175, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10924, PETRI_PLACES=354, PETRI_TRANSITIONS=637} [2021-11-20 05:32:41,355 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 252 predicate places. [2021-11-20 05:32:41,355 INFO L470 AbstractCegarLoop]: Abstraction has has 354 places, 637 transitions, 10924 flow [2021-11-20 05:32:41,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:41,356 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:32:41,356 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:41,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-20 05:32:41,356 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:32:41,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:41,357 INFO L85 PathProgramCache]: Analyzing trace with hash 492124600, now seen corresponding path program 11 times [2021-11-20 05:32:41,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:41,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156712337] [2021-11-20 05:32:41,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:41,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:41,921 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:32:41,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:41,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156712337] [2021-11-20 05:32:41,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156712337] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:32:41,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:32:41,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:32:41,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910999974] [2021-11-20 05:32:41,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:32:41,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:32:41,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:41,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:32:41,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:32:41,924 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2021-11-20 05:32:41,925 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 637 transitions, 10924 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:41,925 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:32:41,925 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2021-11-20 05:32:41,925 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:32:44,075 INFO L129 PetriNetUnfolder]: 1315/3769 cut-off events. [2021-11-20 05:32:44,075 INFO L130 PetriNetUnfolder]: For 50902/50940 co-relation queries the response was YES. [2021-11-20 05:32:44,112 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23669 conditions, 3769 events. 1315/3769 cut-off events. For 50902/50940 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 30396 event pairs, 173 based on Foata normal form. 15/3764 useless extension candidates. Maximal degree in co-relation 23467. Up to 1138 conditions per place. [2021-11-20 05:32:44,123 INFO L132 encePairwiseOnDemand]: 85/103 looper letters, 491 selfloop transitions, 198 changer transitions 25/803 dead transitions. [2021-11-20 05:32:44,123 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 803 transitions, 13851 flow [2021-11-20 05:32:44,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 05:32:44,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-20 05:32:44,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 827 transitions. [2021-11-20 05:32:44,125 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7299205648720212 [2021-11-20 05:32:44,125 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 827 transitions. [2021-11-20 05:32:44,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 827 transitions. [2021-11-20 05:32:44,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:32:44,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 827 transitions. [2021-11-20 05:32:44,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 75.18181818181819) internal successors, (827), 11 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:44,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:44,130 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:44,130 INFO L186 Difference]: Start difference. First operand has 354 places, 637 transitions, 10924 flow. Second operand 11 states and 827 transitions. [2021-11-20 05:32:44,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 803 transitions, 13851 flow [2021-11-20 05:32:44,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 803 transitions, 13572 flow, removed 15 selfloop flow, removed 5 redundant places. [2021-11-20 05:32:44,645 INFO L242 Difference]: Finished difference. Result has 362 places, 642 transitions, 11259 flow [2021-11-20 05:32:44,645 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=10648, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=637, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=193, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11259, PETRI_PLACES=362, PETRI_TRANSITIONS=642} [2021-11-20 05:32:44,646 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 260 predicate places. [2021-11-20 05:32:44,646 INFO L470 AbstractCegarLoop]: Abstraction has has 362 places, 642 transitions, 11259 flow [2021-11-20 05:32:44,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:44,646 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:32:44,646 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:44,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-20 05:32:44,646 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:32:44,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:44,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1143196384, now seen corresponding path program 12 times [2021-11-20 05:32:44,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:44,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159820666] [2021-11-20 05:32:44,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:44,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:45,155 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:32:45,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:45,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159820666] [2021-11-20 05:32:45,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159820666] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:32:45,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:32:45,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-11-20 05:32:45,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741902692] [2021-11-20 05:32:45,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:32:45,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-20 05:32:45,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:45,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-20 05:32:45,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2021-11-20 05:32:45,159 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 103 [2021-11-20 05:32:45,161 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 642 transitions, 11259 flow. Second operand has 19 states, 19 states have (on average 51.526315789473685) internal successors, (979), 19 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:45,161 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:32:45,161 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 103 [2021-11-20 05:32:45,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:32:48,350 INFO L129 PetriNetUnfolder]: 1596/4216 cut-off events. [2021-11-20 05:32:48,350 INFO L130 PetriNetUnfolder]: For 58499/58522 co-relation queries the response was YES. [2021-11-20 05:32:48,394 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26398 conditions, 4216 events. 1596/4216 cut-off events. For 58499/58522 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 33376 event pairs, 196 based on Foata normal form. 5/4198 useless extension candidates. Maximal degree in co-relation 26193. Up to 1129 conditions per place. [2021-11-20 05:32:48,410 INFO L132 encePairwiseOnDemand]: 74/103 looper letters, 457 selfloop transitions, 276 changer transitions 58/869 dead transitions. [2021-11-20 05:32:48,410 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 869 transitions, 15293 flow [2021-11-20 05:32:48,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 05:32:48,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-11-20 05:32:48,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1289 transitions. [2021-11-20 05:32:48,413 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5959315765141008 [2021-11-20 05:32:48,414 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1289 transitions. [2021-11-20 05:32:48,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1289 transitions. [2021-11-20 05:32:48,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:32:48,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1289 transitions. [2021-11-20 05:32:48,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 61.38095238095238) internal successors, (1289), 21 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:48,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 103.0) internal successors, (2266), 22 states have internal predecessors, (2266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:48,422 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 103.0) internal successors, (2266), 22 states have internal predecessors, (2266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:48,422 INFO L186 Difference]: Start difference. First operand has 362 places, 642 transitions, 11259 flow. Second operand 21 states and 1289 transitions. [2021-11-20 05:32:48,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 869 transitions, 15293 flow [2021-11-20 05:32:48,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 869 transitions, 15008 flow, removed 9 selfloop flow, removed 5 redundant places. [2021-11-20 05:32:48,878 INFO L242 Difference]: Finished difference. Result has 382 places, 656 transitions, 11818 flow [2021-11-20 05:32:48,879 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=10992, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=642, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=260, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=11818, PETRI_PLACES=382, PETRI_TRANSITIONS=656} [2021-11-20 05:32:48,880 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 280 predicate places. [2021-11-20 05:32:48,880 INFO L470 AbstractCegarLoop]: Abstraction has has 382 places, 656 transitions, 11818 flow [2021-11-20 05:32:48,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 51.526315789473685) internal successors, (979), 19 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:48,881 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:32:48,881 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:48,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-20 05:32:48,881 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:32:48,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:48,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1275084978, now seen corresponding path program 13 times [2021-11-20 05:32:48,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:48,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667865356] [2021-11-20 05:32:48,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:48,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:48,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:49,502 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:32:49,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:49,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667865356] [2021-11-20 05:32:49,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667865356] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:32:49,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:32:49,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-11-20 05:32:49,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129312029] [2021-11-20 05:32:49,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:32:49,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-20 05:32:49,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:49,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-20 05:32:49,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2021-11-20 05:32:49,505 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 103 [2021-11-20 05:32:49,506 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 656 transitions, 11818 flow. Second operand has 19 states, 19 states have (on average 51.526315789473685) internal successors, (979), 19 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:49,506 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:32:49,507 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 103 [2021-11-20 05:32:49,507 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:32:52,815 INFO L129 PetriNetUnfolder]: 1600/4236 cut-off events. [2021-11-20 05:32:52,815 INFO L130 PetriNetUnfolder]: For 61444/61471 co-relation queries the response was YES. [2021-11-20 05:32:52,865 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27069 conditions, 4236 events. 1600/4236 cut-off events. For 61444/61471 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 33524 event pairs, 237 based on Foata normal form. 9/4222 useless extension candidates. Maximal degree in co-relation 26851. Up to 1132 conditions per place. [2021-11-20 05:32:52,879 INFO L132 encePairwiseOnDemand]: 74/103 looper letters, 446 selfloop transitions, 297 changer transitions 54/875 dead transitions. [2021-11-20 05:32:52,879 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 875 transitions, 15813 flow [2021-11-20 05:32:52,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-20 05:32:52,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2021-11-20 05:32:52,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 1557 transitions. [2021-11-20 05:32:52,881 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5814040328603436 [2021-11-20 05:32:52,881 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 1557 transitions. [2021-11-20 05:32:52,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 1557 transitions. [2021-11-20 05:32:52,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:32:52,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 1557 transitions. [2021-11-20 05:32:52,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 59.88461538461539) internal successors, (1557), 26 states have internal predecessors, (1557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:52,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 103.0) internal successors, (2781), 27 states have internal predecessors, (2781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:52,888 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 103.0) internal successors, (2781), 27 states have internal predecessors, (2781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:52,889 INFO L186 Difference]: Start difference. First operand has 382 places, 656 transitions, 11818 flow. Second operand 26 states and 1557 transitions. [2021-11-20 05:32:52,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 875 transitions, 15813 flow [2021-11-20 05:32:53,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 875 transitions, 15415 flow, removed 7 selfloop flow, removed 11 redundant places. [2021-11-20 05:32:53,393 INFO L242 Difference]: Finished difference. Result has 401 places, 669 transitions, 12366 flow [2021-11-20 05:32:53,394 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=11428, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=656, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=284, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=12366, PETRI_PLACES=401, PETRI_TRANSITIONS=669} [2021-11-20 05:32:53,395 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 299 predicate places. [2021-11-20 05:32:53,395 INFO L470 AbstractCegarLoop]: Abstraction has has 401 places, 669 transitions, 12366 flow [2021-11-20 05:32:53,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 51.526315789473685) internal successors, (979), 19 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:53,395 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:32:53,395 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:53,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-20 05:32:53,395 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:32:53,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:53,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1774891774, now seen corresponding path program 14 times [2021-11-20 05:32:53,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:53,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673034451] [2021-11-20 05:32:53,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:53,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:54,008 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:32:54,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:54,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673034451] [2021-11-20 05:32:54,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673034451] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:32:54,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:32:54,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-11-20 05:32:54,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728741559] [2021-11-20 05:32:54,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:32:54,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-20 05:32:54,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:54,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-20 05:32:54,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2021-11-20 05:32:54,011 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 103 [2021-11-20 05:32:54,012 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 669 transitions, 12366 flow. Second operand has 19 states, 19 states have (on average 51.526315789473685) internal successors, (979), 19 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:54,012 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:32:54,012 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 103 [2021-11-20 05:32:54,012 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:32:57,290 INFO L129 PetriNetUnfolder]: 1601/4241 cut-off events. [2021-11-20 05:32:57,291 INFO L130 PetriNetUnfolder]: For 64180/64207 co-relation queries the response was YES. [2021-11-20 05:32:57,348 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27563 conditions, 4241 events. 1601/4241 cut-off events. For 64180/64207 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 33579 event pairs, 238 based on Foata normal form. 9/4227 useless extension candidates. Maximal degree in co-relation 27337. Up to 1135 conditions per place. [2021-11-20 05:32:57,363 INFO L132 encePairwiseOnDemand]: 74/103 looper letters, 452 selfloop transitions, 298 changer transitions 54/882 dead transitions. [2021-11-20 05:32:57,363 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 882 transitions, 16293 flow [2021-11-20 05:32:57,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-20 05:32:57,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2021-11-20 05:32:57,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 1505 transitions. [2021-11-20 05:32:57,365 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5844660194174758 [2021-11-20 05:32:57,365 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 1505 transitions. [2021-11-20 05:32:57,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 1505 transitions. [2021-11-20 05:32:57,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:32:57,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 1505 transitions. [2021-11-20 05:32:57,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 60.2) internal successors, (1505), 25 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:57,370 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 103.0) internal successors, (2678), 26 states have internal predecessors, (2678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:57,370 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 103.0) internal successors, (2678), 26 states have internal predecessors, (2678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:57,370 INFO L186 Difference]: Start difference. First operand has 401 places, 669 transitions, 12366 flow. Second operand 25 states and 1505 transitions. [2021-11-20 05:32:57,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 882 transitions, 16293 flow [2021-11-20 05:32:57,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 882 transitions, 15707 flow, removed 13 selfloop flow, removed 20 redundant places. [2021-11-20 05:32:57,910 INFO L242 Difference]: Finished difference. Result has 409 places, 679 transitions, 12693 flow [2021-11-20 05:32:57,911 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=11795, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=669, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=288, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=12693, PETRI_PLACES=409, PETRI_TRANSITIONS=679} [2021-11-20 05:32:57,912 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 307 predicate places. [2021-11-20 05:32:57,912 INFO L470 AbstractCegarLoop]: Abstraction has has 409 places, 679 transitions, 12693 flow [2021-11-20 05:32:57,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 51.526315789473685) internal successors, (979), 19 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:57,912 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:32:57,913 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:57,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-20 05:32:57,913 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:32:57,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:57,914 INFO L85 PathProgramCache]: Analyzing trace with hash -514006304, now seen corresponding path program 15 times [2021-11-20 05:32:57,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:57,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524147998] [2021-11-20 05:32:57,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:57,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:57,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:58,257 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:32:58,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:58,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524147998] [2021-11-20 05:32:58,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524147998] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:32:58,258 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:32:58,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:32:58,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820092237] [2021-11-20 05:32:58,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:32:58,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:32:58,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:58,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:32:58,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:32:58,260 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2021-11-20 05:32:58,261 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 679 transitions, 12693 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:32:58,261 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:32:58,261 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2021-11-20 05:32:58,261 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:33:00,555 INFO L129 PetriNetUnfolder]: 1328/3802 cut-off events. [2021-11-20 05:33:00,555 INFO L130 PetriNetUnfolder]: For 58764/58801 co-relation queries the response was YES. [2021-11-20 05:33:00,605 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25177 conditions, 3802 events. 1328/3802 cut-off events. For 58764/58801 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 30793 event pairs, 220 based on Foata normal form. 14/3794 useless extension candidates. Maximal degree in co-relation 24948. Up to 1989 conditions per place. [2021-11-20 05:33:00,617 INFO L132 encePairwiseOnDemand]: 83/103 looper letters, 344 selfloop transitions, 300 changer transitions 19/755 dead transitions. [2021-11-20 05:33:00,618 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 755 transitions, 14683 flow [2021-11-20 05:33:00,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 05:33:00,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-20 05:33:00,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 792 transitions. [2021-11-20 05:33:00,619 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6990291262135923 [2021-11-20 05:33:00,620 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 792 transitions. [2021-11-20 05:33:00,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 792 transitions. [2021-11-20 05:33:00,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:33:00,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 792 transitions. [2021-11-20 05:33:00,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 72.0) internal successors, (792), 11 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:00,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:00,623 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:00,623 INFO L186 Difference]: Start difference. First operand has 409 places, 679 transitions, 12693 flow. Second operand 11 states and 792 transitions. [2021-11-20 05:33:00,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 755 transitions, 14683 flow [2021-11-20 05:33:01,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 755 transitions, 14107 flow, removed 13 selfloop flow, removed 18 redundant places. [2021-11-20 05:33:01,222 INFO L242 Difference]: Finished difference. Result has 403 places, 681 transitions, 12774 flow [2021-11-20 05:33:01,223 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=12117, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=679, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=298, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12774, PETRI_PLACES=403, PETRI_TRANSITIONS=681} [2021-11-20 05:33:01,224 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 301 predicate places. [2021-11-20 05:33:01,224 INFO L470 AbstractCegarLoop]: Abstraction has has 403 places, 681 transitions, 12774 flow [2021-11-20 05:33:01,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:01,225 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:33:01,225 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:33:01,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-20 05:33:01,225 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:33:01,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:33:01,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1523905104, now seen corresponding path program 16 times [2021-11-20 05:33:01,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:33:01,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585254740] [2021-11-20 05:33:01,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:33:01,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:33:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:33:01,570 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:33:01,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:33:01,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585254740] [2021-11-20 05:33:01,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585254740] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:33:01,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:33:01,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:33:01,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172013938] [2021-11-20 05:33:01,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:33:01,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:33:01,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:33:01,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:33:01,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:33:01,572 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2021-11-20 05:33:01,573 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 681 transitions, 12774 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:01,573 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:33:01,573 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2021-11-20 05:33:01,573 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:33:03,615 INFO L129 PetriNetUnfolder]: 1332/3803 cut-off events. [2021-11-20 05:33:03,615 INFO L130 PetriNetUnfolder]: For 60681/60718 co-relation queries the response was YES. [2021-11-20 05:33:03,665 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25367 conditions, 3803 events. 1332/3803 cut-off events. For 60681/60718 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 30761 event pairs, 230 based on Foata normal form. 14/3793 useless extension candidates. Maximal degree in co-relation 25136. Up to 1983 conditions per place. [2021-11-20 05:33:03,679 INFO L132 encePairwiseOnDemand]: 83/103 looper letters, 361 selfloop transitions, 283 changer transitions 21/757 dead transitions. [2021-11-20 05:33:03,679 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 757 transitions, 14869 flow [2021-11-20 05:33:03,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 05:33:03,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-20 05:33:03,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 721 transitions. [2021-11-20 05:33:03,680 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7 [2021-11-20 05:33:03,680 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 721 transitions. [2021-11-20 05:33:03,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 721 transitions. [2021-11-20 05:33:03,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:33:03,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 721 transitions. [2021-11-20 05:33:03,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 72.1) internal successors, (721), 10 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:03,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:03,683 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:03,683 INFO L186 Difference]: Start difference. First operand has 403 places, 681 transitions, 12774 flow. Second operand 10 states and 721 transitions. [2021-11-20 05:33:03,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 757 transitions, 14869 flow [2021-11-20 05:33:04,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 757 transitions, 14324 flow, removed 8 selfloop flow, removed 6 redundant places. [2021-11-20 05:33:04,229 INFO L242 Difference]: Finished difference. Result has 410 places, 689 transitions, 13024 flow [2021-11-20 05:33:04,230 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=12241, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=681, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=275, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=13024, PETRI_PLACES=410, PETRI_TRANSITIONS=689} [2021-11-20 05:33:04,230 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 308 predicate places. [2021-11-20 05:33:04,230 INFO L470 AbstractCegarLoop]: Abstraction has has 410 places, 689 transitions, 13024 flow [2021-11-20 05:33:04,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:04,231 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:33:04,231 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:33:04,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-20 05:33:04,231 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:33:04,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:33:04,232 INFO L85 PathProgramCache]: Analyzing trace with hash -752175596, now seen corresponding path program 17 times [2021-11-20 05:33:04,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:33:04,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348657188] [2021-11-20 05:33:04,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:33:04,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:33:04,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:33:04,586 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:33:04,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:33:04,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348657188] [2021-11-20 05:33:04,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348657188] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:33:04,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:33:04,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:33:04,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344520710] [2021-11-20 05:33:04,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:33:04,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:33:04,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:33:04,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:33:04,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:33:04,588 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2021-11-20 05:33:04,589 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 689 transitions, 13024 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:04,589 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:33:04,589 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2021-11-20 05:33:04,589 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:33:06,975 INFO L129 PetriNetUnfolder]: 1332/3807 cut-off events. [2021-11-20 05:33:06,976 INFO L130 PetriNetUnfolder]: For 61749/61786 co-relation queries the response was YES. [2021-11-20 05:33:07,021 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25444 conditions, 3807 events. 1332/3807 cut-off events. For 61749/61786 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 30784 event pairs, 229 based on Foata normal form. 14/3797 useless extension candidates. Maximal degree in co-relation 25205. Up to 1985 conditions per place. [2021-11-20 05:33:07,034 INFO L132 encePairwiseOnDemand]: 83/103 looper letters, 357 selfloop transitions, 292 changer transitions 21/762 dead transitions. [2021-11-20 05:33:07,034 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 762 transitions, 15087 flow [2021-11-20 05:33:07,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 05:33:07,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-11-20 05:33:07,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 906 transitions. [2021-11-20 05:33:07,036 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6766243465272591 [2021-11-20 05:33:07,036 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 906 transitions. [2021-11-20 05:33:07,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 906 transitions. [2021-11-20 05:33:07,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:33:07,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 906 transitions. [2021-11-20 05:33:07,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 69.6923076923077) internal successors, (906), 13 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:07,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:07,040 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:07,040 INFO L186 Difference]: Start difference. First operand has 410 places, 689 transitions, 13024 flow. Second operand 13 states and 906 transitions. [2021-11-20 05:33:07,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 762 transitions, 15087 flow [2021-11-20 05:33:07,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 762 transitions, 14547 flow, removed 9 selfloop flow, removed 5 redundant places. [2021-11-20 05:33:07,572 INFO L242 Difference]: Finished difference. Result has 420 places, 696 transitions, 13320 flow [2021-11-20 05:33:07,574 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=12493, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=689, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=285, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13320, PETRI_PLACES=420, PETRI_TRANSITIONS=696} [2021-11-20 05:33:07,574 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 318 predicate places. [2021-11-20 05:33:07,574 INFO L470 AbstractCegarLoop]: Abstraction has has 420 places, 696 transitions, 13320 flow [2021-11-20 05:33:07,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:07,575 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:33:07,575 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:33:07,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-20 05:33:07,575 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:33:07,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:33:07,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1997002542, now seen corresponding path program 1 times [2021-11-20 05:33:07,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:33:07,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58300890] [2021-11-20 05:33:07,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:33:07,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:33:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:33:08,456 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:33:08,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:33:08,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58300890] [2021-11-20 05:33:08,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58300890] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:33:08,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:33:08,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:33:08,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230664382] [2021-11-20 05:33:08,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:33:08,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:33:08,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:33:08,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:33:08,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:33:08,459 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2021-11-20 05:33:08,459 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 696 transitions, 13320 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:08,459 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:33:08,459 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2021-11-20 05:33:08,459 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:33:11,029 INFO L129 PetriNetUnfolder]: 1376/4026 cut-off events. [2021-11-20 05:33:11,029 INFO L130 PetriNetUnfolder]: For 68530/68571 co-relation queries the response was YES. [2021-11-20 05:33:11,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26720 conditions, 4026 events. 1376/4026 cut-off events. For 68530/68571 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 33426 event pairs, 151 based on Foata normal form. 20/4032 useless extension candidates. Maximal degree in co-relation 26475. Up to 1071 conditions per place. [2021-11-20 05:33:11,104 INFO L132 encePairwiseOnDemand]: 87/103 looper letters, 746 selfloop transitions, 120 changer transitions 21/993 dead transitions. [2021-11-20 05:33:11,104 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 993 transitions, 18416 flow [2021-11-20 05:33:11,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 05:33:11,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-11-20 05:33:11,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 937 transitions. [2021-11-20 05:33:11,106 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7580906148867314 [2021-11-20 05:33:11,106 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 937 transitions. [2021-11-20 05:33:11,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 937 transitions. [2021-11-20 05:33:11,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:33:11,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 937 transitions. [2021-11-20 05:33:11,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 78.08333333333333) internal successors, (937), 12 states have internal predecessors, (937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:11,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:11,109 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:11,109 INFO L186 Difference]: Start difference. First operand has 420 places, 696 transitions, 13320 flow. Second operand 12 states and 937 transitions. [2021-11-20 05:33:11,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 993 transitions, 18416 flow [2021-11-20 05:33:11,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 993 transitions, 17791 flow, removed 9 selfloop flow, removed 7 redundant places. [2021-11-20 05:33:11,691 INFO L242 Difference]: Finished difference. Result has 432 places, 764 transitions, 14333 flow [2021-11-20 05:33:11,691 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=12769, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=696, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=610, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=14333, PETRI_PLACES=432, PETRI_TRANSITIONS=764} [2021-11-20 05:33:11,692 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 330 predicate places. [2021-11-20 05:33:11,692 INFO L470 AbstractCegarLoop]: Abstraction has has 432 places, 764 transitions, 14333 flow [2021-11-20 05:33:11,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:11,692 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:33:11,692 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:33:11,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-20 05:33:11,693 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:33:11,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:33:11,693 INFO L85 PathProgramCache]: Analyzing trace with hash -347285014, now seen corresponding path program 2 times [2021-11-20 05:33:11,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:33:11,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113669206] [2021-11-20 05:33:11,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:33:11,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:33:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:33:12,327 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:33:12,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:33:12,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113669206] [2021-11-20 05:33:12,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113669206] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:33:12,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:33:12,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:33:12,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472456912] [2021-11-20 05:33:12,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:33:12,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:33:12,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:33:12,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:33:12,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:33:12,329 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2021-11-20 05:33:12,329 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 764 transitions, 14333 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:12,329 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:33:12,329 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2021-11-20 05:33:12,329 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:33:14,768 INFO L129 PetriNetUnfolder]: 1451/4219 cut-off events. [2021-11-20 05:33:14,769 INFO L130 PetriNetUnfolder]: For 75665/75742 co-relation queries the response was YES. [2021-11-20 05:33:14,828 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28392 conditions, 4219 events. 1451/4219 cut-off events. For 75665/75742 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 35539 event pairs, 169 based on Foata normal form. 48/4255 useless extension candidates. Maximal degree in co-relation 28143. Up to 2172 conditions per place. [2021-11-20 05:33:14,843 INFO L132 encePairwiseOnDemand]: 87/103 looper letters, 662 selfloop transitions, 146 changer transitions 24/938 dead transitions. [2021-11-20 05:33:14,843 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 938 transitions, 18867 flow [2021-11-20 05:33:14,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 05:33:14,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-20 05:33:14,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 758 transitions. [2021-11-20 05:33:14,845 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7359223300970874 [2021-11-20 05:33:14,845 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 758 transitions. [2021-11-20 05:33:14,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 758 transitions. [2021-11-20 05:33:14,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:33:14,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 758 transitions. [2021-11-20 05:33:14,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 75.8) internal successors, (758), 10 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:14,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:14,847 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:14,847 INFO L186 Difference]: Start difference. First operand has 432 places, 764 transitions, 14333 flow. Second operand 10 states and 758 transitions. [2021-11-20 05:33:14,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 938 transitions, 18867 flow [2021-11-20 05:33:15,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 938 transitions, 18588 flow, removed 21 selfloop flow, removed 2 redundant places. [2021-11-20 05:33:15,498 INFO L242 Difference]: Finished difference. Result has 442 places, 806 transitions, 16019 flow [2021-11-20 05:33:15,499 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=14119, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=764, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=635, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=16019, PETRI_PLACES=442, PETRI_TRANSITIONS=806} [2021-11-20 05:33:15,499 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 340 predicate places. [2021-11-20 05:33:15,500 INFO L470 AbstractCegarLoop]: Abstraction has has 442 places, 806 transitions, 16019 flow [2021-11-20 05:33:15,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:15,500 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:33:15,500 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:33:15,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-20 05:33:15,501 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:33:15,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:33:15,501 INFO L85 PathProgramCache]: Analyzing trace with hash 474152802, now seen corresponding path program 3 times [2021-11-20 05:33:15,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:33:15,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589207522] [2021-11-20 05:33:15,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:33:15,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:33:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:33:16,442 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:33:16,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:33:16,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589207522] [2021-11-20 05:33:16,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589207522] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:33:16,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:33:16,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:33:16,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020500128] [2021-11-20 05:33:16,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:33:16,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:33:16,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:33:16,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:33:16,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:33:16,446 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2021-11-20 05:33:16,447 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 806 transitions, 16019 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:16,447 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:33:16,447 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2021-11-20 05:33:16,447 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:33:19,645 INFO L129 PetriNetUnfolder]: 1594/4622 cut-off events. [2021-11-20 05:33:19,646 INFO L130 PetriNetUnfolder]: For 95978/96083 co-relation queries the response was YES. [2021-11-20 05:33:19,716 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31434 conditions, 4622 events. 1594/4622 cut-off events. For 95978/96083 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 39748 event pairs, 169 based on Foata normal form. 54/4663 useless extension candidates. Maximal degree in co-relation 31182. Up to 2141 conditions per place. [2021-11-20 05:33:19,736 INFO L132 encePairwiseOnDemand]: 87/103 looper letters, 715 selfloop transitions, 203 changer transitions 9/1033 dead transitions. [2021-11-20 05:33:19,736 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 1033 transitions, 21276 flow [2021-11-20 05:33:19,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 05:33:19,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-20 05:33:19,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 837 transitions. [2021-11-20 05:33:19,737 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7387466902030009 [2021-11-20 05:33:19,738 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 837 transitions. [2021-11-20 05:33:19,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 837 transitions. [2021-11-20 05:33:19,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:33:19,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 837 transitions. [2021-11-20 05:33:19,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 76.0909090909091) internal successors, (837), 11 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:19,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:19,740 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:19,741 INFO L186 Difference]: Start difference. First operand has 442 places, 806 transitions, 16019 flow. Second operand 11 states and 837 transitions. [2021-11-20 05:33:19,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 1033 transitions, 21276 flow [2021-11-20 05:33:20,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 1033 transitions, 21176 flow, removed 13 selfloop flow, removed 4 redundant places. [2021-11-20 05:33:20,708 INFO L242 Difference]: Finished difference. Result has 456 places, 878 transitions, 18690 flow [2021-11-20 05:33:20,709 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=15942, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=806, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=623, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=18690, PETRI_PLACES=456, PETRI_TRANSITIONS=878} [2021-11-20 05:33:20,710 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 354 predicate places. [2021-11-20 05:33:20,710 INFO L470 AbstractCegarLoop]: Abstraction has has 456 places, 878 transitions, 18690 flow [2021-11-20 05:33:20,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:20,711 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:33:20,711 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:33:20,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-20 05:33:20,711 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:33:20,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:33:20,712 INFO L85 PathProgramCache]: Analyzing trace with hash -2091870968, now seen corresponding path program 4 times [2021-11-20 05:33:20,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:33:20,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13954293] [2021-11-20 05:33:20,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:33:20,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:33:20,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:33:21,614 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:33:21,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:33:21,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13954293] [2021-11-20 05:33:21,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13954293] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:33:21,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:33:21,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:33:21,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488107973] [2021-11-20 05:33:21,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:33:21,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:33:21,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:33:21,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:33:21,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:33:21,617 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2021-11-20 05:33:21,618 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 878 transitions, 18690 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:21,618 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:33:21,619 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2021-11-20 05:33:21,619 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:33:25,665 INFO L129 PetriNetUnfolder]: 1820/5217 cut-off events. [2021-11-20 05:33:25,666 INFO L130 PetriNetUnfolder]: For 136702/136838 co-relation queries the response was YES. [2021-11-20 05:33:25,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36758 conditions, 5217 events. 1820/5217 cut-off events. For 136702/136838 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 46216 event pairs, 208 based on Foata normal form. 90/5295 useless extension candidates. Maximal degree in co-relation 36497. Up to 2452 conditions per place. [2021-11-20 05:33:25,792 INFO L132 encePairwiseOnDemand]: 87/103 looper letters, 760 selfloop transitions, 263 changer transitions 15/1144 dead transitions. [2021-11-20 05:33:25,792 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 1144 transitions, 25752 flow [2021-11-20 05:33:25,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 05:33:25,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-20 05:33:25,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1107 transitions. [2021-11-20 05:33:25,795 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7165048543689321 [2021-11-20 05:33:25,795 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1107 transitions. [2021-11-20 05:33:25,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1107 transitions. [2021-11-20 05:33:25,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:33:25,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1107 transitions. [2021-11-20 05:33:25,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 73.8) internal successors, (1107), 15 states have internal predecessors, (1107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:25,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 103.0) internal successors, (1648), 16 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:25,802 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 103.0) internal successors, (1648), 16 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:25,802 INFO L186 Difference]: Start difference. First operand has 456 places, 878 transitions, 18690 flow. Second operand 15 states and 1107 transitions. [2021-11-20 05:33:25,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 1144 transitions, 25752 flow [2021-11-20 05:33:27,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 1144 transitions, 25524 flow, removed 94 selfloop flow, removed 2 redundant places. [2021-11-20 05:33:27,128 INFO L242 Difference]: Finished difference. Result has 472 places, 966 transitions, 22324 flow [2021-11-20 05:33:27,129 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=18562, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=878, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=190, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=672, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=22324, PETRI_PLACES=472, PETRI_TRANSITIONS=966} [2021-11-20 05:33:27,130 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 370 predicate places. [2021-11-20 05:33:27,130 INFO L470 AbstractCegarLoop]: Abstraction has has 472 places, 966 transitions, 22324 flow [2021-11-20 05:33:27,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:27,130 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:33:27,130 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:33:27,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-20 05:33:27,130 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:33:27,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:33:27,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1592392306, now seen corresponding path program 5 times [2021-11-20 05:33:27,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:33:27,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670513242] [2021-11-20 05:33:27,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:33:27,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:33:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:33:27,927 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:33:27,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:33:27,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670513242] [2021-11-20 05:33:27,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670513242] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:33:27,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:33:27,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:33:27,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393366398] [2021-11-20 05:33:27,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:33:27,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:33:27,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:33:27,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:33:27,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:33:27,929 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2021-11-20 05:33:27,930 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 966 transitions, 22324 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:27,930 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:33:27,930 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2021-11-20 05:33:27,930 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:33:31,737 INFO L129 PetriNetUnfolder]: 2014/5756 cut-off events. [2021-11-20 05:33:31,737 INFO L130 PetriNetUnfolder]: For 166918/167082 co-relation queries the response was YES. [2021-11-20 05:33:31,826 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41142 conditions, 5756 events. 2014/5756 cut-off events. For 166918/167082 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 52051 event pairs, 234 based on Foata normal form. 97/5841 useless extension candidates. Maximal degree in co-relation 40878. Up to 2505 conditions per place. [2021-11-20 05:33:31,849 INFO L132 encePairwiseOnDemand]: 87/103 looper letters, 765 selfloop transitions, 302 changer transitions 11/1184 dead transitions. [2021-11-20 05:33:31,849 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 1184 transitions, 28203 flow [2021-11-20 05:33:31,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 05:33:31,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-20 05:33:31,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 835 transitions. [2021-11-20 05:33:31,850 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.736981465136805 [2021-11-20 05:33:31,850 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 835 transitions. [2021-11-20 05:33:31,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 835 transitions. [2021-11-20 05:33:31,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:33:31,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 835 transitions. [2021-11-20 05:33:31,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 75.9090909090909) internal successors, (835), 11 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:31,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:31,852 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:31,853 INFO L186 Difference]: Start difference. First operand has 472 places, 966 transitions, 22324 flow. Second operand 11 states and 835 transitions. [2021-11-20 05:33:31,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 1184 transitions, 28203 flow [2021-11-20 05:33:33,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 1184 transitions, 28026 flow, removed 57 selfloop flow, removed 3 redundant places. [2021-11-20 05:33:33,221 INFO L242 Difference]: Finished difference. Result has 487 places, 1033 transitions, 25539 flow [2021-11-20 05:33:33,222 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=22168, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=966, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=237, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=686, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=25539, PETRI_PLACES=487, PETRI_TRANSITIONS=1033} [2021-11-20 05:33:33,222 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 385 predicate places. [2021-11-20 05:33:33,222 INFO L470 AbstractCegarLoop]: Abstraction has has 487 places, 1033 transitions, 25539 flow [2021-11-20 05:33:33,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:33,222 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:33:33,222 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:33:33,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-20 05:33:33,223 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:33:33,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:33:33,223 INFO L85 PathProgramCache]: Analyzing trace with hash 841263638, now seen corresponding path program 6 times [2021-11-20 05:33:33,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:33:33,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561556844] [2021-11-20 05:33:33,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:33:33,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:33:33,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:33:34,092 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:33:34,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:33:34,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561556844] [2021-11-20 05:33:34,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561556844] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:33:34,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:33:34,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:33:34,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422330485] [2021-11-20 05:33:34,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:33:34,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:33:34,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:33:34,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:33:34,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:33:34,095 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2021-11-20 05:33:34,096 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 487 places, 1033 transitions, 25539 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:34,096 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:33:34,096 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2021-11-20 05:33:34,096 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:33:38,834 INFO L129 PetriNetUnfolder]: 2097/6007 cut-off events. [2021-11-20 05:33:38,834 INFO L130 PetriNetUnfolder]: For 203388/203589 co-relation queries the response was YES. [2021-11-20 05:33:38,935 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44488 conditions, 6007 events. 2097/6007 cut-off events. For 203388/203589 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 55046 event pairs, 231 based on Foata normal form. 110/6106 useless extension candidates. Maximal degree in co-relation 44216. Up to 2337 conditions per place. [2021-11-20 05:33:38,959 INFO L132 encePairwiseOnDemand]: 87/103 looper letters, 753 selfloop transitions, 400 changer transitions 16/1275 dead transitions. [2021-11-20 05:33:38,959 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 501 places, 1275 transitions, 31803 flow [2021-11-20 05:33:38,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 05:33:38,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-20 05:33:38,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1119 transitions. [2021-11-20 05:33:38,961 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7242718446601941 [2021-11-20 05:33:38,961 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1119 transitions. [2021-11-20 05:33:38,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1119 transitions. [2021-11-20 05:33:38,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:33:38,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1119 transitions. [2021-11-20 05:33:38,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 74.6) internal successors, (1119), 15 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:38,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 103.0) internal successors, (1648), 16 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:38,965 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 103.0) internal successors, (1648), 16 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:38,965 INFO L186 Difference]: Start difference. First operand has 487 places, 1033 transitions, 25539 flow. Second operand 15 states and 1119 transitions. [2021-11-20 05:33:38,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 501 places, 1275 transitions, 31803 flow [2021-11-20 05:33:40,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 1275 transitions, 31680 flow, removed 41 selfloop flow, removed 2 redundant places. [2021-11-20 05:33:40,781 INFO L242 Difference]: Finished difference. Result has 508 places, 1089 transitions, 28580 flow [2021-11-20 05:33:40,782 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=25435, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1033, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=344, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=665, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=28580, PETRI_PLACES=508, PETRI_TRANSITIONS=1089} [2021-11-20 05:33:40,782 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 406 predicate places. [2021-11-20 05:33:40,782 INFO L470 AbstractCegarLoop]: Abstraction has has 508 places, 1089 transitions, 28580 flow [2021-11-20 05:33:40,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:40,783 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:33:40,783 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:33:40,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-20 05:33:40,783 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:33:40,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:33:40,784 INFO L85 PathProgramCache]: Analyzing trace with hash -105868122, now seen corresponding path program 7 times [2021-11-20 05:33:40,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:33:40,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222799141] [2021-11-20 05:33:40,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:33:40,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:33:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:33:41,476 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:33:41,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:33:41,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222799141] [2021-11-20 05:33:41,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222799141] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:33:41,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:33:41,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:33:41,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931430352] [2021-11-20 05:33:41,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:33:41,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:33:41,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:33:41,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:33:41,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:33:41,478 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2021-11-20 05:33:41,478 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 1089 transitions, 28580 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:41,478 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:33:41,478 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2021-11-20 05:33:41,479 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:33:45,933 INFO L129 PetriNetUnfolder]: 2079/5921 cut-off events. [2021-11-20 05:33:45,933 INFO L130 PetriNetUnfolder]: For 215236/215441 co-relation queries the response was YES. [2021-11-20 05:33:46,063 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45609 conditions, 5921 events. 2079/5921 cut-off events. For 215236/215441 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 54141 event pairs, 270 based on Foata normal form. 130/6038 useless extension candidates. Maximal degree in co-relation 45328. Up to 2774 conditions per place. [2021-11-20 05:33:46,093 INFO L132 encePairwiseOnDemand]: 87/103 looper letters, 792 selfloop transitions, 315 changer transitions 13/1226 dead transitions. [2021-11-20 05:33:46,094 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 1226 transitions, 32304 flow [2021-11-20 05:33:46,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 05:33:46,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-20 05:33:46,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 830 transitions. [2021-11-20 05:33:46,096 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.732568402471315 [2021-11-20 05:33:46,096 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 830 transitions. [2021-11-20 05:33:46,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 830 transitions. [2021-11-20 05:33:46,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:33:46,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 830 transitions. [2021-11-20 05:33:46,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 75.45454545454545) internal successors, (830), 11 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:46,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:46,100 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:46,101 INFO L186 Difference]: Start difference. First operand has 508 places, 1089 transitions, 28580 flow. Second operand 11 states and 830 transitions. [2021-11-20 05:33:46,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 1226 transitions, 32304 flow [2021-11-20 05:33:47,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 1226 transitions, 31388 flow, removed 101 selfloop flow, removed 5 redundant places. [2021-11-20 05:33:47,978 INFO L242 Difference]: Finished difference. Result has 516 places, 1089 transitions, 28409 flow [2021-11-20 05:33:47,979 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=27666, PETRI_DIFFERENCE_MINUEND_PLACES=503, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1089, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=313, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=775, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=28409, PETRI_PLACES=516, PETRI_TRANSITIONS=1089} [2021-11-20 05:33:47,979 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 414 predicate places. [2021-11-20 05:33:47,980 INFO L470 AbstractCegarLoop]: Abstraction has has 516 places, 1089 transitions, 28409 flow [2021-11-20 05:33:47,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:47,980 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:33:47,980 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:33:47,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-20 05:33:47,980 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:33:47,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:33:47,980 INFO L85 PathProgramCache]: Analyzing trace with hash 779543000, now seen corresponding path program 8 times [2021-11-20 05:33:47,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:33:47,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818646576] [2021-11-20 05:33:47,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:33:47,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:33:47,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:33:48,680 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:33:48,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:33:48,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818646576] [2021-11-20 05:33:48,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818646576] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:33:48,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:33:48,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:33:48,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865572960] [2021-11-20 05:33:48,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:33:48,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:33:48,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:33:48,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:33:48,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:33:48,683 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2021-11-20 05:33:48,684 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 516 places, 1089 transitions, 28409 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:48,684 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:33:48,684 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2021-11-20 05:33:48,684 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:33:53,313 INFO L129 PetriNetUnfolder]: 2173/6245 cut-off events. [2021-11-20 05:33:53,313 INFO L130 PetriNetUnfolder]: For 234501/234723 co-relation queries the response was YES. [2021-11-20 05:33:53,419 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47891 conditions, 6245 events. 2173/6245 cut-off events. For 234501/234723 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 58168 event pairs, 202 based on Foata normal form. 135/6368 useless extension candidates. Maximal degree in co-relation 47608. Up to 2649 conditions per place. [2021-11-20 05:33:53,445 INFO L132 encePairwiseOnDemand]: 87/103 looper letters, 808 selfloop transitions, 392 changer transitions 13/1319 dead transitions. [2021-11-20 05:33:53,445 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 529 places, 1319 transitions, 34605 flow [2021-11-20 05:33:53,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 05:33:53,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-20 05:33:53,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1060 transitions. [2021-11-20 05:33:53,446 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7350901525658807 [2021-11-20 05:33:53,446 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1060 transitions. [2021-11-20 05:33:53,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1060 transitions. [2021-11-20 05:33:53,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:33:53,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1060 transitions. [2021-11-20 05:33:53,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 75.71428571428571) internal successors, (1060), 14 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:53,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:53,449 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:53,449 INFO L186 Difference]: Start difference. First operand has 516 places, 1089 transitions, 28409 flow. Second operand 14 states and 1060 transitions. [2021-11-20 05:33:53,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 529 places, 1319 transitions, 34605 flow [2021-11-20 05:33:55,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 524 places, 1319 transitions, 33969 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-11-20 05:33:55,570 INFO L242 Difference]: Finished difference. Result has 531 places, 1138 transitions, 30833 flow [2021-11-20 05:33:55,571 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=27828, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1089, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=342, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=729, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=30833, PETRI_PLACES=531, PETRI_TRANSITIONS=1138} [2021-11-20 05:33:55,571 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 429 predicate places. [2021-11-20 05:33:55,571 INFO L470 AbstractCegarLoop]: Abstraction has has 531 places, 1138 transitions, 30833 flow [2021-11-20 05:33:55,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:55,571 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:33:55,571 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:33:55,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-20 05:33:55,572 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:33:55,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:33:55,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1066179186, now seen corresponding path program 9 times [2021-11-20 05:33:55,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:33:55,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986938234] [2021-11-20 05:33:55,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:33:55,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:33:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:33:56,309 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:33:56,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:33:56,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986938234] [2021-11-20 05:33:56,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986938234] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:33:56,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:33:56,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:33:56,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018808042] [2021-11-20 05:33:56,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:33:56,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:33:56,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:33:56,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:33:56,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:33:56,312 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2021-11-20 05:33:56,312 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 531 places, 1138 transitions, 30833 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:56,312 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:33:56,312 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2021-11-20 05:33:56,312 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:34:01,560 INFO L129 PetriNetUnfolder]: 2226/6395 cut-off events. [2021-11-20 05:34:01,560 INFO L130 PetriNetUnfolder]: For 252953/253179 co-relation queries the response was YES. [2021-11-20 05:34:01,702 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49954 conditions, 6395 events. 2226/6395 cut-off events. For 252953/253179 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 60073 event pairs, 204 based on Foata normal form. 127/6510 useless extension candidates. Maximal degree in co-relation 49664. Up to 2686 conditions per place. [2021-11-20 05:34:01,729 INFO L132 encePairwiseOnDemand]: 87/103 looper letters, 795 selfloop transitions, 431 changer transitions 13/1345 dead transitions. [2021-11-20 05:34:01,730 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 545 places, 1345 transitions, 36557 flow [2021-11-20 05:34:01,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 05:34:01,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-20 05:34:01,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1117 transitions. [2021-11-20 05:34:01,731 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7229773462783171 [2021-11-20 05:34:01,731 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1117 transitions. [2021-11-20 05:34:01,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1117 transitions. [2021-11-20 05:34:01,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:34:01,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1117 transitions. [2021-11-20 05:34:01,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 74.46666666666667) internal successors, (1117), 15 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:34:01,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 103.0) internal successors, (1648), 16 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:34:01,736 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 103.0) internal successors, (1648), 16 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:34:01,736 INFO L186 Difference]: Start difference. First operand has 531 places, 1138 transitions, 30833 flow. Second operand 15 states and 1117 transitions. [2021-11-20 05:34:01,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 545 places, 1345 transitions, 36557 flow [2021-11-20 05:34:04,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 541 places, 1345 transitions, 35884 flow, removed 89 selfloop flow, removed 4 redundant places. [2021-11-20 05:34:04,231 INFO L242 Difference]: Finished difference. Result has 545 places, 1167 transitions, 32669 flow [2021-11-20 05:34:04,232 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=30204, PETRI_DIFFERENCE_MINUEND_PLACES=527, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=400, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=731, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=32669, PETRI_PLACES=545, PETRI_TRANSITIONS=1167} [2021-11-20 05:34:04,233 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 443 predicate places. [2021-11-20 05:34:04,233 INFO L470 AbstractCegarLoop]: Abstraction has has 545 places, 1167 transitions, 32669 flow [2021-11-20 05:34:04,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:34:04,233 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:34:04,234 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:34:04,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-20 05:34:04,234 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:34:04,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:34:04,235 INFO L85 PathProgramCache]: Analyzing trace with hash -154353112, now seen corresponding path program 10 times [2021-11-20 05:34:04,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:34:04,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792063524] [2021-11-20 05:34:04,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:34:04,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:34:04,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:34:05,101 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:34:05,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:34:05,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792063524] [2021-11-20 05:34:05,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792063524] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:34:05,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:34:05,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:34:05,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404522821] [2021-11-20 05:34:05,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:34:05,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:34:05,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:34:05,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:34:05,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:34:05,103 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2021-11-20 05:34:05,104 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 545 places, 1167 transitions, 32669 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:34:05,104 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:34:05,104 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2021-11-20 05:34:05,104 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:34:10,388 INFO L129 PetriNetUnfolder]: 2323/6682 cut-off events. [2021-11-20 05:34:10,388 INFO L130 PetriNetUnfolder]: For 281565/281803 co-relation queries the response was YES. [2021-11-20 05:34:10,500 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52664 conditions, 6682 events. 2323/6682 cut-off events. For 281565/281803 co-relation queries the response was YES. Maximal size of possible extension queue 376. Compared 63442 event pairs, 222 based on Foata normal form. 142/6813 useless extension candidates. Maximal degree in co-relation 52370. Up to 2461 conditions per place. [2021-11-20 05:34:10,528 INFO L132 encePairwiseOnDemand]: 87/103 looper letters, 774 selfloop transitions, 489 changer transitions 8/1377 dead transitions. [2021-11-20 05:34:10,528 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 558 places, 1377 transitions, 38417 flow [2021-11-20 05:34:10,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 05:34:10,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-20 05:34:10,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1058 transitions. [2021-11-20 05:34:10,529 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7337031900138696 [2021-11-20 05:34:10,529 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1058 transitions. [2021-11-20 05:34:10,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1058 transitions. [2021-11-20 05:34:10,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:34:10,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1058 transitions. [2021-11-20 05:34:10,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 75.57142857142857) internal successors, (1058), 14 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:34:10,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:34:10,532 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:34:10,532 INFO L186 Difference]: Start difference. First operand has 545 places, 1167 transitions, 32669 flow. Second operand 14 states and 1058 transitions. [2021-11-20 05:34:10,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 558 places, 1377 transitions, 38417 flow [2021-11-20 05:34:13,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 548 places, 1377 transitions, 37329 flow, removed 33 selfloop flow, removed 10 redundant places. [2021-11-20 05:34:13,052 INFO L242 Difference]: Finished difference. Result has 553 places, 1208 transitions, 34579 flow [2021-11-20 05:34:13,053 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=31652, PETRI_DIFFERENCE_MINUEND_PLACES=535, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=448, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=701, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=34579, PETRI_PLACES=553, PETRI_TRANSITIONS=1208} [2021-11-20 05:34:13,054 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 451 predicate places. [2021-11-20 05:34:13,054 INFO L470 AbstractCegarLoop]: Abstraction has has 553 places, 1208 transitions, 34579 flow [2021-11-20 05:34:13,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:34:13,054 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:34:13,054 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:34:13,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-20 05:34:13,054 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:34:13,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:34:13,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1370594270, now seen corresponding path program 11 times [2021-11-20 05:34:13,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:34:13,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055591109] [2021-11-20 05:34:13,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:34:13,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:34:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:34:14,060 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:34:14,060 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:34:14,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055591109] [2021-11-20 05:34:14,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055591109] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:34:14,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:34:14,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:34:14,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873669393] [2021-11-20 05:34:14,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:34:14,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:34:14,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:34:14,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:34:14,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:34:14,063 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2021-11-20 05:34:14,064 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 1208 transitions, 34579 flow. Second operand has 10 states, 10 states have (on average 60.6) internal successors, (606), 10 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:34:14,064 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:34:14,064 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2021-11-20 05:34:14,064 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:34:20,526 INFO L129 PetriNetUnfolder]: 3474/9869 cut-off events. [2021-11-20 05:34:20,527 INFO L130 PetriNetUnfolder]: For 489374/489608 co-relation queries the response was YES. [2021-11-20 05:34:20,789 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80529 conditions, 9869 events. 3474/9869 cut-off events. For 489374/489608 co-relation queries the response was YES. Maximal size of possible extension queue 610. Compared 101175 event pairs, 339 based on Foata normal form. 232/10090 useless extension candidates. Maximal degree in co-relation 80159. Up to 4132 conditions per place. [2021-11-20 05:34:20,837 INFO L132 encePairwiseOnDemand]: 86/103 looper letters, 1046 selfloop transitions, 707 changer transitions 16/1873 dead transitions. [2021-11-20 05:34:20,837 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 565 places, 1873 transitions, 60414 flow [2021-11-20 05:34:20,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 05:34:20,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-11-20 05:34:20,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 981 transitions. [2021-11-20 05:34:20,839 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7326362957430919 [2021-11-20 05:34:20,839 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 981 transitions. [2021-11-20 05:34:20,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 981 transitions. [2021-11-20 05:34:20,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:34:20,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 981 transitions. [2021-11-20 05:34:20,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 75.46153846153847) internal successors, (981), 13 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:34:20,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:34:20,842 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:34:20,842 INFO L186 Difference]: Start difference. First operand has 553 places, 1208 transitions, 34579 flow. Second operand 13 states and 981 transitions. [2021-11-20 05:34:20,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 565 places, 1873 transitions, 60414 flow [2021-11-20 05:34:27,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 558 places, 1873 transitions, 59282 flow, removed 24 selfloop flow, removed 7 redundant places. [2021-11-20 05:34:27,496 INFO L242 Difference]: Finished difference. Result has 569 places, 1629 transitions, 56086 flow [2021-11-20 05:34:27,497 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=33926, PETRI_DIFFERENCE_MINUEND_PLACES=546, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=304, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=707, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=56086, PETRI_PLACES=569, PETRI_TRANSITIONS=1629} [2021-11-20 05:34:27,498 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 467 predicate places. [2021-11-20 05:34:27,498 INFO L470 AbstractCegarLoop]: Abstraction has has 569 places, 1629 transitions, 56086 flow [2021-11-20 05:34:27,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.6) internal successors, (606), 10 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:34:27,498 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:34:27,499 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:34:27,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-20 05:34:27,499 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:34:27,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:34:27,500 INFO L85 PathProgramCache]: Analyzing trace with hash -162288504, now seen corresponding path program 12 times [2021-11-20 05:34:27,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:34:27,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983227655] [2021-11-20 05:34:27,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:34:27,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:34:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:34:27,842 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:34:27,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:34:27,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983227655] [2021-11-20 05:34:27,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983227655] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:34:27,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:34:27,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:34:27,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685482635] [2021-11-20 05:34:27,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:34:27,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:34:27,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:34:27,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:34:27,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:34:27,845 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2021-11-20 05:34:27,845 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 569 places, 1629 transitions, 56086 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:34:27,845 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:34:27,845 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2021-11-20 05:34:27,846 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:34:36,544 INFO L129 PetriNetUnfolder]: 3479/9917 cut-off events. [2021-11-20 05:34:36,544 INFO L130 PetriNetUnfolder]: For 550272/550735 co-relation queries the response was YES. [2021-11-20 05:34:36,719 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82892 conditions, 9917 events. 3479/9917 cut-off events. For 550272/550735 co-relation queries the response was YES. Maximal size of possible extension queue 611. Compared 101487 event pairs, 327 based on Foata normal form. 318/10222 useless extension candidates. Maximal degree in co-relation 82512. Up to 4287 conditions per place. [2021-11-20 05:34:36,762 INFO L132 encePairwiseOnDemand]: 87/103 looper letters, 1089 selfloop transitions, 600 changer transitions 19/1815 dead transitions. [2021-11-20 05:34:36,762 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 580 places, 1815 transitions, 61674 flow [2021-11-20 05:34:36,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 05:34:36,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-11-20 05:34:36,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 917 transitions. [2021-11-20 05:34:36,764 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7419093851132686 [2021-11-20 05:34:36,764 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 917 transitions. [2021-11-20 05:34:36,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 917 transitions. [2021-11-20 05:34:36,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:34:36,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 917 transitions. [2021-11-20 05:34:36,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 76.41666666666667) internal successors, (917), 12 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:34:36,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:34:36,767 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:34:36,768 INFO L186 Difference]: Start difference. First operand has 569 places, 1629 transitions, 56086 flow. Second operand 12 states and 917 transitions. [2021-11-20 05:34:36,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 580 places, 1815 transitions, 61674 flow [2021-11-20 05:34:44,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 579 places, 1815 transitions, 61557 flow, removed 49 selfloop flow, removed 1 redundant places. [2021-11-20 05:34:44,349 INFO L242 Difference]: Finished difference. Result has 584 places, 1661 transitions, 58783 flow [2021-11-20 05:34:44,351 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=55969, PETRI_DIFFERENCE_MINUEND_PLACES=568, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1629, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=571, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1035, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=58783, PETRI_PLACES=584, PETRI_TRANSITIONS=1661} [2021-11-20 05:34:44,351 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 482 predicate places. [2021-11-20 05:34:44,352 INFO L470 AbstractCegarLoop]: Abstraction has has 584 places, 1661 transitions, 58783 flow [2021-11-20 05:34:44,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:34:44,352 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:34:44,352 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:34:44,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-20 05:34:44,353 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:34:44,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:34:44,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1228507092, now seen corresponding path program 13 times [2021-11-20 05:34:44,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:34:44,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137898812] [2021-11-20 05:34:44,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:34:44,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:34:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:34:45,159 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:34:45,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:34:45,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137898812] [2021-11-20 05:34:45,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137898812] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:34:45,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:34:45,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:34:45,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999099119] [2021-11-20 05:34:45,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:34:45,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:34:45,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:34:45,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:34:45,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:34:45,161 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2021-11-20 05:34:45,161 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 584 places, 1661 transitions, 58783 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:34:45,162 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:34:45,162 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2021-11-20 05:34:45,162 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:34:54,440 INFO L129 PetriNetUnfolder]: 3574/10151 cut-off events. [2021-11-20 05:34:54,440 INFO L130 PetriNetUnfolder]: For 616794/617238 co-relation queries the response was YES. [2021-11-20 05:34:54,599 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87964 conditions, 10151 events. 3574/10151 cut-off events. For 616794/617238 co-relation queries the response was YES. Maximal size of possible extension queue 629. Compared 104573 event pairs, 345 based on Foata normal form. 311/10449 useless extension candidates. Maximal degree in co-relation 87579. Up to 2791 conditions per place. [2021-11-20 05:34:54,643 INFO L132 encePairwiseOnDemand]: 87/103 looper letters, 878 selfloop transitions, 886 changer transitions 10/1881 dead transitions. [2021-11-20 05:34:54,643 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 594 places, 1881 transitions, 65716 flow [2021-11-20 05:34:54,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 05:34:54,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-20 05:34:54,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 873 transitions. [2021-11-20 05:34:54,645 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7705207413945278 [2021-11-20 05:34:54,645 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 873 transitions. [2021-11-20 05:34:54,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 873 transitions. [2021-11-20 05:34:54,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:34:54,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 873 transitions. [2021-11-20 05:34:54,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 79.36363636363636) internal successors, (873), 11 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:34:54,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:34:54,647 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:34:54,647 INFO L186 Difference]: Start difference. First operand has 584 places, 1661 transitions, 58783 flow. Second operand 11 states and 873 transitions. [2021-11-20 05:34:54,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 594 places, 1881 transitions, 65716 flow [2021-11-20 05:35:00,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 590 places, 1881 transitions, 65186 flow, removed 15 selfloop flow, removed 4 redundant places. [2021-11-20 05:35:00,939 INFO L242 Difference]: Finished difference. Result has 594 places, 1697 transitions, 62393 flow [2021-11-20 05:35:00,940 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=58286, PETRI_DIFFERENCE_MINUEND_PLACES=580, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1661, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=850, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=795, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=62393, PETRI_PLACES=594, PETRI_TRANSITIONS=1697} [2021-11-20 05:35:00,941 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 492 predicate places. [2021-11-20 05:35:00,941 INFO L470 AbstractCegarLoop]: Abstraction has has 594 places, 1697 transitions, 62393 flow [2021-11-20 05:35:00,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:35:00,941 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:35:00,941 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:35:00,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-11-20 05:35:00,942 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 05:35:00,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:00,942 INFO L85 PathProgramCache]: Analyzing trace with hash -690253249, now seen corresponding path program 1 times [2021-11-20 05:35:00,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:00,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843429664] [2021-11-20 05:35:00,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:00,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:00,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:35:01,297 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:35:01,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:35:01,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843429664] [2021-11-20 05:35:01,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843429664] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:35:01,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:35:01,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 05:35:01,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391687752] [2021-11-20 05:35:01,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:35:01,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-20 05:35:01,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:35:01,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-20 05:35:01,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-11-20 05:35:01,299 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2021-11-20 05:35:01,300 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 594 places, 1697 transitions, 62393 flow. Second operand has 11 states, 11 states have (on average 58.45454545454545) internal successors, (643), 11 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:35:01,300 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:35:01,300 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2021-11-20 05:35:01,300 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand