./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8a3cf0-530d-435c-9eba-d1b6fd363bf8/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8a3cf0-530d-435c-9eba-d1b6fd363bf8/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8a3cf0-530d-435c-9eba-d1b6fd363bf8/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8a3cf0-530d-435c-9eba-d1b6fd363bf8/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8a3cf0-530d-435c-9eba-d1b6fd363bf8/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8a3cf0-530d-435c-9eba-d1b6fd363bf8/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b79c2a620eba99d5ba65b548a8599a4feb45877b2c0c8388713c23f9a60bea18 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:30:49,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:30:49,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:30:49,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:30:49,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:30:49,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:30:49,102 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:30:49,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:30:49,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:30:49,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:30:49,115 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:30:49,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:30:49,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:30:49,123 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:30:49,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:30:49,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:30:49,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:30:49,133 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:30:49,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:30:49,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:30:49,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:30:49,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:30:49,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:30:49,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:30:49,157 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:30:49,158 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:30:49,158 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:30:49,160 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:30:49,162 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:30:49,163 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:30:49,164 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:30:49,165 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:30:49,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:30:49,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:30:49,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:30:49,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:30:49,171 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:30:49,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:30:49,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:30:49,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:30:49,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:30:49,175 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8a3cf0-530d-435c-9eba-d1b6fd363bf8/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:30:49,215 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:30:49,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:30:49,216 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:30:49,217 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:30:49,218 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:30:49,218 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:30:49,219 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:30:49,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:30:49,220 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:30:49,220 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:30:49,221 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:30:49,221 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:30:49,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:30:49,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:30:49,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:30:49,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:30:49,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:30:49,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:30:49,224 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:30:49,224 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:30:49,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:30:49,224 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:30:49,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:30:49,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:30:49,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:30:49,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:30:49,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:30:49,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:30:49,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:30:49,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:30:49,228 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:30:49,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:30:49,228 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:30:49,229 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:30:49,229 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:30:49,229 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_3d8a3cf0-530d-435c-9eba-d1b6fd363bf8/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8a3cf0-530d-435c-9eba-d1b6fd363bf8/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b79c2a620eba99d5ba65b548a8599a4feb45877b2c0c8388713c23f9a60bea18 [2022-11-20 11:30:49,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:30:49,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:30:49,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:30:49,586 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:30:49,587 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:30:49,588 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8a3cf0-530d-435c-9eba-d1b6fd363bf8/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2022-11-20 11:30:52,785 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:30:53,057 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:30:53,057 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8a3cf0-530d-435c-9eba-d1b6fd363bf8/sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2022-11-20 11:30:53,067 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8a3cf0-530d-435c-9eba-d1b6fd363bf8/bin/uautomizer-ug76WZFUDN/data/4d02ba82b/d7d4ed406c8b4dd1b971938703ad01cf/FLAG7fdba6d28 [2022-11-20 11:30:53,086 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8a3cf0-530d-435c-9eba-d1b6fd363bf8/bin/uautomizer-ug76WZFUDN/data/4d02ba82b/d7d4ed406c8b4dd1b971938703ad01cf [2022-11-20 11:30:53,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:30:53,092 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:30:53,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:30:53,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:30:53,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:30:53,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:30:53" (1/1) ... [2022-11-20 11:30:53,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fd146bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:53, skipping insertion in model container [2022-11-20 11:30:53,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:30:53" (1/1) ... [2022-11-20 11:30:53,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:30:53,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:30:53,417 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8a3cf0-530d-435c-9eba-d1b6fd363bf8/sv-benchmarks/c/weaver/chl-node-trans.wvr.c[3945,3958] [2022-11-20 11:30:53,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:30:53,439 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:30:53,488 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8a3cf0-530d-435c-9eba-d1b6fd363bf8/sv-benchmarks/c/weaver/chl-node-trans.wvr.c[3945,3958] [2022-11-20 11:30:53,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:30:53,513 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:30:53,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:53 WrapperNode [2022-11-20 11:30:53,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:30:53,515 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:30:53,516 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:30:53,516 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:30:53,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:53" (1/1) ... [2022-11-20 11:30:53,560 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:53" (1/1) ... [2022-11-20 11:30:53,627 INFO L138 Inliner]: procedures = 27, calls = 66, calls flagged for inlining = 22, calls inlined = 34, statements flattened = 795 [2022-11-20 11:30:53,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:30:53,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:30:53,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:30:53,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:30:53,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:53" (1/1) ... [2022-11-20 11:30:53,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:53" (1/1) ... [2022-11-20 11:30:53,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:53" (1/1) ... [2022-11-20 11:30:53,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:53" (1/1) ... [2022-11-20 11:30:53,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:53" (1/1) ... [2022-11-20 11:30:53,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:53" (1/1) ... [2022-11-20 11:30:53,704 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:53" (1/1) ... [2022-11-20 11:30:53,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:53" (1/1) ... [2022-11-20 11:30:53,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:30:53,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:30:53,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:30:53,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:30:53,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:53" (1/1) ... [2022-11-20 11:30:53,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:30:53,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8a3cf0-530d-435c-9eba-d1b6fd363bf8/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:30:53,748 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8a3cf0-530d-435c-9eba-d1b6fd363bf8/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:30:53,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8a3cf0-530d-435c-9eba-d1b6fd363bf8/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:30:53,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:30:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:30:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:30:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:30:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 11:30:53,812 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 11:30:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 11:30:53,812 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 11:30:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 11:30:53,813 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 11:30:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:30:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:30:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:30:53,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:30:53,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:30:53,816 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:30:54,029 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:30:54,044 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:30:55,300 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:30:55,321 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:30:55,321 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-20 11:30:55,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:30:55 BoogieIcfgContainer [2022-11-20 11:30:55,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:30:55,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:30:55,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:30:55,332 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:30:55,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:30:53" (1/3) ... [2022-11-20 11:30:55,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27466a9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:30:55, skipping insertion in model container [2022-11-20 11:30:55,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:53" (2/3) ... [2022-11-20 11:30:55,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27466a9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:30:55, skipping insertion in model container [2022-11-20 11:30:55,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:30:55" (3/3) ... [2022-11-20 11:30:55,337 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-trans.wvr.c [2022-11-20 11:30:55,346 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:30:55,357 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:30:55,357 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 117 error locations. [2022-11-20 11:30:55,357 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:30:55,579 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 11:30:55,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1011 places, 1049 transitions, 2122 flow [2022-11-20 11:30:56,302 INFO L130 PetriNetUnfolder]: 48/1046 cut-off events. [2022-11-20 11:30:56,302 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 11:30:56,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1059 conditions, 1046 events. 48/1046 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2200 event pairs, 0 based on Foata normal form. 0/881 useless extension candidates. Maximal degree in co-relation 830. Up to 2 conditions per place. [2022-11-20 11:30:56,328 INFO L82 GeneralOperation]: Start removeDead. Operand has 1011 places, 1049 transitions, 2122 flow [2022-11-20 11:30:56,358 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 986 places, 1022 transitions, 2062 flow [2022-11-20 11:30:56,375 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:30:56,382 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7ae252a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:30:56,382 INFO L358 AbstractCegarLoop]: Starting to check reachability of 195 error locations. [2022-11-20 11:30:56,390 INFO L130 PetriNetUnfolder]: 0/37 cut-off events. [2022-11-20 11:30:56,390 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:30:56,391 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:30:56,392 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:30:56,392 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-20 11:30:56,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:30:56,398 INFO L85 PathProgramCache]: Analyzing trace with hash 67747261, now seen corresponding path program 1 times [2022-11-20 11:30:56,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:30:56,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310913765] [2022-11-20 11:30:56,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:30:56,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:30:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:56,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:30:56,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:30:56,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310913765] [2022-11-20 11:30:56,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310913765] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:30:56,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:30:56,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:30:56,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159016251] [2022-11-20 11:30:56,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:30:56,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:30:56,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:30:56,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:30:56,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:30:56,759 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 977 out of 1049 [2022-11-20 11:30:56,768 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 986 places, 1022 transitions, 2062 flow. Second operand has 3 states, 3 states have (on average 978.3333333333334) internal successors, (2935), 3 states have internal predecessors, (2935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:30:56,768 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:30:56,768 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 977 of 1049 [2022-11-20 11:30:56,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:30:58,716 INFO L130 PetriNetUnfolder]: 186/3267 cut-off events. [2022-11-20 11:30:58,716 INFO L131 PetriNetUnfolder]: For 84/84 co-relation queries the response was YES. [2022-11-20 11:30:58,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3610 conditions, 3267 events. 186/3267 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 21833 event pairs, 117 based on Foata normal form. 144/2788 useless extension candidates. Maximal degree in co-relation 2701. Up to 274 conditions per place. [2022-11-20 11:30:58,837 INFO L137 encePairwiseOnDemand]: 1018/1049 looper letters, 39 selfloop transitions, 2 changer transitions 16/993 dead transitions. [2022-11-20 11:30:58,837 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 987 places, 993 transitions, 2086 flow [2022-11-20 11:30:58,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:30:58,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:30:58,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3001 transitions. [2022-11-20 11:30:58,859 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9536066094693358 [2022-11-20 11:30:58,860 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3001 transitions. [2022-11-20 11:30:58,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3001 transitions. [2022-11-20 11:30:58,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:30:58,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3001 transitions. [2022-11-20 11:30:58,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1000.3333333333334) internal successors, (3001), 3 states have internal predecessors, (3001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:30:58,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:30:58,894 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:30:58,896 INFO L175 Difference]: Start difference. First operand has 986 places, 1022 transitions, 2062 flow. Second operand 3 states and 3001 transitions. [2022-11-20 11:30:58,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 987 places, 993 transitions, 2086 flow [2022-11-20 11:30:58,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 981 places, 993 transitions, 2074 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 11:30:58,925 INFO L231 Difference]: Finished difference. Result has 981 places, 977 transitions, 1964 flow [2022-11-20 11:30:58,929 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1992, PETRI_DIFFERENCE_MINUEND_PLACES=979, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=993, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=991, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1964, PETRI_PLACES=981, PETRI_TRANSITIONS=977} [2022-11-20 11:30:58,932 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -5 predicate places. [2022-11-20 11:30:58,932 INFO L495 AbstractCegarLoop]: Abstraction has has 981 places, 977 transitions, 1964 flow [2022-11-20 11:30:58,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 978.3333333333334) internal successors, (2935), 3 states have internal predecessors, (2935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:30:58,935 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:30:58,935 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:30:58,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:30:58,936 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-20 11:30:58,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:30:58,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1280696334, now seen corresponding path program 1 times [2022-11-20 11:30:58,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:30:58,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294623449] [2022-11-20 11:30:58,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:30:58,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:30:58,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:58,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:30:58,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:30:58,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294623449] [2022-11-20 11:30:58,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294623449] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:30:58,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:30:58,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:30:58,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770982648] [2022-11-20 11:30:58,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:30:58,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:30:58,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:30:59,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:30:59,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:30:59,005 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 980 out of 1049 [2022-11-20 11:30:59,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 981 places, 977 transitions, 1964 flow. Second operand has 3 states, 3 states have (on average 981.3333333333334) internal successors, (2944), 3 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:30:59,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:30:59,009 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 980 of 1049 [2022-11-20 11:30:59,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:00,409 INFO L130 PetriNetUnfolder]: 117/2670 cut-off events. [2022-11-20 11:31:00,409 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-20 11:31:00,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2838 conditions, 2670 events. 117/2670 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 15759 event pairs, 60 based on Foata normal form. 0/2233 useless extension candidates. Maximal degree in co-relation 2791. Up to 146 conditions per place. [2022-11-20 11:31:00,512 INFO L137 encePairwiseOnDemand]: 1038/1049 looper letters, 27 selfloop transitions, 1 changer transitions 0/967 dead transitions. [2022-11-20 11:31:00,513 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 957 places, 967 transitions, 2000 flow [2022-11-20 11:31:00,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:31:00,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:31:00,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2978 transitions. [2022-11-20 11:31:00,521 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.946298061646012 [2022-11-20 11:31:00,521 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2978 transitions. [2022-11-20 11:31:00,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2978 transitions. [2022-11-20 11:31:00,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:00,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2978 transitions. [2022-11-20 11:31:00,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 992.6666666666666) internal successors, (2978), 3 states have internal predecessors, (2978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:00,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:00,543 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:00,543 INFO L175 Difference]: Start difference. First operand has 981 places, 977 transitions, 1964 flow. Second operand 3 states and 2978 transitions. [2022-11-20 11:31:00,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 957 places, 967 transitions, 2000 flow [2022-11-20 11:31:00,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 955 places, 967 transitions, 1996 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:31:00,566 INFO L231 Difference]: Finished difference. Result has 955 places, 967 transitions, 1942 flow [2022-11-20 11:31:00,568 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1940, PETRI_DIFFERENCE_MINUEND_PLACES=953, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=967, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=966, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1942, PETRI_PLACES=955, PETRI_TRANSITIONS=967} [2022-11-20 11:31:00,569 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -31 predicate places. [2022-11-20 11:31:00,569 INFO L495 AbstractCegarLoop]: Abstraction has has 955 places, 967 transitions, 1942 flow [2022-11-20 11:31:00,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 981.3333333333334) internal successors, (2944), 3 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:00,571 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:00,572 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:00,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:31:00,572 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-20 11:31:00,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:00,573 INFO L85 PathProgramCache]: Analyzing trace with hash 988209977, now seen corresponding path program 1 times [2022-11-20 11:31:00,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:00,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942381084] [2022-11-20 11:31:00,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:00,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:00,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:00,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:00,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:00,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942381084] [2022-11-20 11:31:00,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942381084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:00,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:00,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:31:00,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839158505] [2022-11-20 11:31:00,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:00,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:31:00,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:00,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:31:00,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:31:00,717 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 977 out of 1049 [2022-11-20 11:31:00,721 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 955 places, 967 transitions, 1942 flow. Second operand has 3 states, 3 states have (on average 978.3333333333334) internal successors, (2935), 3 states have internal predecessors, (2935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:00,722 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:00,722 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 977 of 1049 [2022-11-20 11:31:00,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:02,980 INFO L130 PetriNetUnfolder]: 395/5097 cut-off events. [2022-11-20 11:31:02,981 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-20 11:31:03,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5747 conditions, 5097 events. 395/5097 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 42876 event pairs, 279 based on Foata normal form. 0/4170 useless extension candidates. Maximal degree in co-relation 5701. Up to 534 conditions per place. [2022-11-20 11:31:03,087 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 39 selfloop transitions, 2 changer transitions 0/966 dead transitions. [2022-11-20 11:31:03,088 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 956 places, 966 transitions, 2022 flow [2022-11-20 11:31:03,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:31:03,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:31:03,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2973 transitions. [2022-11-20 11:31:03,096 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9447092469018112 [2022-11-20 11:31:03,096 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2973 transitions. [2022-11-20 11:31:03,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2973 transitions. [2022-11-20 11:31:03,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:03,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2973 transitions. [2022-11-20 11:31:03,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 991.0) internal successors, (2973), 3 states have internal predecessors, (2973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:03,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:03,119 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:03,119 INFO L175 Difference]: Start difference. First operand has 955 places, 967 transitions, 1942 flow. Second operand 3 states and 2973 transitions. [2022-11-20 11:31:03,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 956 places, 966 transitions, 2022 flow [2022-11-20 11:31:03,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 955 places, 966 transitions, 2021 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:31:03,148 INFO L231 Difference]: Finished difference. Result has 955 places, 966 transitions, 1943 flow [2022-11-20 11:31:03,150 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1939, PETRI_DIFFERENCE_MINUEND_PLACES=953, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=966, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=964, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1943, PETRI_PLACES=955, PETRI_TRANSITIONS=966} [2022-11-20 11:31:03,151 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -31 predicate places. [2022-11-20 11:31:03,151 INFO L495 AbstractCegarLoop]: Abstraction has has 955 places, 966 transitions, 1943 flow [2022-11-20 11:31:03,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 978.3333333333334) internal successors, (2935), 3 states have internal predecessors, (2935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:03,154 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:03,154 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:03,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:31:03,154 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-20 11:31:03,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:03,155 INFO L85 PathProgramCache]: Analyzing trace with hash -572017565, now seen corresponding path program 1 times [2022-11-20 11:31:03,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:03,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532129302] [2022-11-20 11:31:03,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:03,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:03,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:03,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:03,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532129302] [2022-11-20 11:31:03,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532129302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:03,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:03,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:31:03,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613389030] [2022-11-20 11:31:03,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:03,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:31:03,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:03,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:31:03,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:31:03,260 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 980 out of 1049 [2022-11-20 11:31:03,265 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 955 places, 966 transitions, 1943 flow. Second operand has 3 states, 3 states have (on average 981.3333333333334) internal successors, (2944), 3 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:03,266 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:03,266 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 980 of 1049 [2022-11-20 11:31:03,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:04,867 INFO L130 PetriNetUnfolder]: 225/3997 cut-off events. [2022-11-20 11:31:04,868 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-20 11:31:04,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4326 conditions, 3997 events. 225/3997 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 30568 event pairs, 132 based on Foata normal form. 0/3357 useless extension candidates. Maximal degree in co-relation 4281. Up to 264 conditions per place. [2022-11-20 11:31:04,977 INFO L137 encePairwiseOnDemand]: 1038/1049 looper letters, 27 selfloop transitions, 1 changer transitions 0/956 dead transitions. [2022-11-20 11:31:04,977 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 947 places, 956 transitions, 1979 flow [2022-11-20 11:31:04,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:31:04,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:31:04,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2978 transitions. [2022-11-20 11:31:04,986 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.946298061646012 [2022-11-20 11:31:04,986 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2978 transitions. [2022-11-20 11:31:04,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2978 transitions. [2022-11-20 11:31:04,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:04,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2978 transitions. [2022-11-20 11:31:05,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 992.6666666666666) internal successors, (2978), 3 states have internal predecessors, (2978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:05,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:05,014 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:05,015 INFO L175 Difference]: Start difference. First operand has 955 places, 966 transitions, 1943 flow. Second operand 3 states and 2978 transitions. [2022-11-20 11:31:05,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 947 places, 956 transitions, 1979 flow [2022-11-20 11:31:05,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 945 places, 956 transitions, 1975 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:31:05,038 INFO L231 Difference]: Finished difference. Result has 945 places, 956 transitions, 1921 flow [2022-11-20 11:31:05,045 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1919, PETRI_DIFFERENCE_MINUEND_PLACES=943, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=956, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=955, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1921, PETRI_PLACES=945, PETRI_TRANSITIONS=956} [2022-11-20 11:31:05,047 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -41 predicate places. [2022-11-20 11:31:05,048 INFO L495 AbstractCegarLoop]: Abstraction has has 945 places, 956 transitions, 1921 flow [2022-11-20 11:31:05,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 981.3333333333334) internal successors, (2944), 3 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:05,058 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:05,058 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:05,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:31:05,059 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-20 11:31:05,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:05,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1213596433, now seen corresponding path program 1 times [2022-11-20 11:31:05,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:05,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763519972] [2022-11-20 11:31:05,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:05,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:05,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:05,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:05,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763519972] [2022-11-20 11:31:05,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763519972] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:05,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:05,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:31:05,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828488724] [2022-11-20 11:31:05,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:05,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:31:05,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:05,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:31:05,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:31:05,167 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 977 out of 1049 [2022-11-20 11:31:05,172 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 945 places, 956 transitions, 1921 flow. Second operand has 3 states, 3 states have (on average 978.3333333333334) internal successors, (2935), 3 states have internal predecessors, (2935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:05,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:05,173 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 977 of 1049 [2022-11-20 11:31:05,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:07,161 INFO L130 PetriNetUnfolder]: 400/4758 cut-off events. [2022-11-20 11:31:07,162 INFO L131 PetriNetUnfolder]: For 122/166 co-relation queries the response was YES. [2022-11-20 11:31:07,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5325 conditions, 4758 events. 400/4758 cut-off events. For 122/166 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 40103 event pairs, 279 based on Foata normal form. 0/3932 useless extension candidates. Maximal degree in co-relation 5279. Up to 549 conditions per place. [2022-11-20 11:31:07,316 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 39 selfloop transitions, 2 changer transitions 0/955 dead transitions. [2022-11-20 11:31:07,316 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 946 places, 955 transitions, 2001 flow [2022-11-20 11:31:07,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:31:07,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:31:07,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2973 transitions. [2022-11-20 11:31:07,323 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9447092469018112 [2022-11-20 11:31:07,323 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2973 transitions. [2022-11-20 11:31:07,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2973 transitions. [2022-11-20 11:31:07,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:07,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2973 transitions. [2022-11-20 11:31:07,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 991.0) internal successors, (2973), 3 states have internal predecessors, (2973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:07,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:07,340 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:07,340 INFO L175 Difference]: Start difference. First operand has 945 places, 956 transitions, 1921 flow. Second operand 3 states and 2973 transitions. [2022-11-20 11:31:07,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 946 places, 955 transitions, 2001 flow [2022-11-20 11:31:07,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 945 places, 955 transitions, 2000 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:31:07,357 INFO L231 Difference]: Finished difference. Result has 945 places, 955 transitions, 1922 flow [2022-11-20 11:31:07,359 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1918, PETRI_DIFFERENCE_MINUEND_PLACES=943, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=955, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=953, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1922, PETRI_PLACES=945, PETRI_TRANSITIONS=955} [2022-11-20 11:31:07,362 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -41 predicate places. [2022-11-20 11:31:07,362 INFO L495 AbstractCegarLoop]: Abstraction has has 945 places, 955 transitions, 1922 flow [2022-11-20 11:31:07,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 978.3333333333334) internal successors, (2935), 3 states have internal predecessors, (2935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:07,363 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:07,363 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:07,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:31:07,364 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-20 11:31:07,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:07,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1549506701, now seen corresponding path program 1 times [2022-11-20 11:31:07,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:07,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447501527] [2022-11-20 11:31:07,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:07,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:07,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:07,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:07,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:07,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447501527] [2022-11-20 11:31:07,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447501527] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:07,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:07,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:31:07,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706998050] [2022-11-20 11:31:07,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:07,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:31:07,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:07,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:31:07,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:31:07,459 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 980 out of 1049 [2022-11-20 11:31:07,463 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 945 places, 955 transitions, 1922 flow. Second operand has 3 states, 3 states have (on average 981.3333333333334) internal successors, (2944), 3 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:07,463 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:07,464 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 980 of 1049 [2022-11-20 11:31:07,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:08,474 INFO L130 PetriNetUnfolder]: 227/3715 cut-off events. [2022-11-20 11:31:08,474 INFO L131 PetriNetUnfolder]: For 65/94 co-relation queries the response was YES. [2022-11-20 11:31:08,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4007 conditions, 3715 events. 227/3715 cut-off events. For 65/94 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 27120 event pairs, 132 based on Foata normal form. 0/3161 useless extension candidates. Maximal degree in co-relation 3962. Up to 274 conditions per place. [2022-11-20 11:31:08,564 INFO L137 encePairwiseOnDemand]: 1038/1049 looper letters, 27 selfloop transitions, 1 changer transitions 0/945 dead transitions. [2022-11-20 11:31:08,565 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 937 places, 945 transitions, 1958 flow [2022-11-20 11:31:08,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:31:08,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:31:08,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2978 transitions. [2022-11-20 11:31:08,576 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.946298061646012 [2022-11-20 11:31:08,576 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2978 transitions. [2022-11-20 11:31:08,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2978 transitions. [2022-11-20 11:31:08,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:08,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2978 transitions. [2022-11-20 11:31:08,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 992.6666666666666) internal successors, (2978), 3 states have internal predecessors, (2978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:08,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:08,593 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:08,594 INFO L175 Difference]: Start difference. First operand has 945 places, 955 transitions, 1922 flow. Second operand 3 states and 2978 transitions. [2022-11-20 11:31:08,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 937 places, 945 transitions, 1958 flow [2022-11-20 11:31:08,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 935 places, 945 transitions, 1954 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:31:08,611 INFO L231 Difference]: Finished difference. Result has 935 places, 945 transitions, 1900 flow [2022-11-20 11:31:08,613 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1898, PETRI_DIFFERENCE_MINUEND_PLACES=933, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=945, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=944, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1900, PETRI_PLACES=935, PETRI_TRANSITIONS=945} [2022-11-20 11:31:08,614 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -51 predicate places. [2022-11-20 11:31:08,614 INFO L495 AbstractCegarLoop]: Abstraction has has 935 places, 945 transitions, 1900 flow [2022-11-20 11:31:08,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 981.3333333333334) internal successors, (2944), 3 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:08,615 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:08,615 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:08,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:31:08,616 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-20 11:31:08,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:08,616 INFO L85 PathProgramCache]: Analyzing trace with hash 239828791, now seen corresponding path program 1 times [2022-11-20 11:31:08,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:08,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079404496] [2022-11-20 11:31:08,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:08,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:08,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:08,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:08,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:08,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079404496] [2022-11-20 11:31:08,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079404496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:08,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:08,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:31:08,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491212236] [2022-11-20 11:31:08,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:08,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:31:08,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:08,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:31:08,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:31:08,664 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1001 out of 1049 [2022-11-20 11:31:08,668 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 935 places, 945 transitions, 1900 flow. Second operand has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:08,668 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:08,668 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1001 of 1049 [2022-11-20 11:31:08,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:08,995 INFO L130 PetriNetUnfolder]: 30/1280 cut-off events. [2022-11-20 11:31:08,996 INFO L131 PetriNetUnfolder]: For 3/9 co-relation queries the response was YES. [2022-11-20 11:31:09,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1324 conditions, 1280 events. 30/1280 cut-off events. For 3/9 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3686 event pairs, 6 based on Foata normal form. 0/1119 useless extension candidates. Maximal degree in co-relation 1278. Up to 28 conditions per place. [2022-11-20 11:31:09,012 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 15 selfloop transitions, 2 changer transitions 0/944 dead transitions. [2022-11-20 11:31:09,012 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 936 places, 944 transitions, 1932 flow [2022-11-20 11:31:09,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:31:09,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:31:09,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3021 transitions. [2022-11-20 11:31:09,017 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9599618684461392 [2022-11-20 11:31:09,018 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3021 transitions. [2022-11-20 11:31:09,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3021 transitions. [2022-11-20 11:31:09,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:09,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3021 transitions. [2022-11-20 11:31:09,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1007.0) internal successors, (3021), 3 states have internal predecessors, (3021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:09,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:09,033 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:09,034 INFO L175 Difference]: Start difference. First operand has 935 places, 945 transitions, 1900 flow. Second operand 3 states and 3021 transitions. [2022-11-20 11:31:09,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 936 places, 944 transitions, 1932 flow [2022-11-20 11:31:09,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 935 places, 944 transitions, 1931 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:31:09,051 INFO L231 Difference]: Finished difference. Result has 935 places, 944 transitions, 1901 flow [2022-11-20 11:31:09,053 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1897, PETRI_DIFFERENCE_MINUEND_PLACES=933, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=944, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=942, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1901, PETRI_PLACES=935, PETRI_TRANSITIONS=944} [2022-11-20 11:31:09,054 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -51 predicate places. [2022-11-20 11:31:09,054 INFO L495 AbstractCegarLoop]: Abstraction has has 935 places, 944 transitions, 1901 flow [2022-11-20 11:31:09,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:09,057 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:09,057 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:09,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:31:09,058 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-20 11:31:09,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:09,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1788234047, now seen corresponding path program 1 times [2022-11-20 11:31:09,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:09,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127502262] [2022-11-20 11:31:09,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:09,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:09,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:09,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:09,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127502262] [2022-11-20 11:31:09,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127502262] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:09,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:09,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:31:09,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724804734] [2022-11-20 11:31:09,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:09,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:31:09,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:09,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:31:09,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:31:09,140 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 998 out of 1049 [2022-11-20 11:31:09,143 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 935 places, 944 transitions, 1901 flow. Second operand has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:09,143 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:09,143 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 998 of 1049 [2022-11-20 11:31:09,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:09,610 INFO L130 PetriNetUnfolder]: 48/1523 cut-off events. [2022-11-20 11:31:09,611 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 11:31:09,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1608 conditions, 1523 events. 48/1523 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6662 event pairs, 18 based on Foata normal form. 0/1321 useless extension candidates. Maximal degree in co-relation 1562. Up to 55 conditions per place. [2022-11-20 11:31:09,637 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 18 selfloop transitions, 2 changer transitions 0/943 dead transitions. [2022-11-20 11:31:09,637 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 936 places, 943 transitions, 1939 flow [2022-11-20 11:31:09,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:31:09,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:31:09,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3015 transitions. [2022-11-20 11:31:09,645 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9580552907530981 [2022-11-20 11:31:09,645 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3015 transitions. [2022-11-20 11:31:09,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3015 transitions. [2022-11-20 11:31:09,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:09,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3015 transitions. [2022-11-20 11:31:09,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1005.0) internal successors, (3015), 3 states have internal predecessors, (3015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:09,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:09,664 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:09,665 INFO L175 Difference]: Start difference. First operand has 935 places, 944 transitions, 1901 flow. Second operand 3 states and 3015 transitions. [2022-11-20 11:31:09,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 936 places, 943 transitions, 1939 flow [2022-11-20 11:31:09,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 934 places, 943 transitions, 1935 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:31:09,686 INFO L231 Difference]: Finished difference. Result has 934 places, 943 transitions, 1899 flow [2022-11-20 11:31:09,688 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1895, PETRI_DIFFERENCE_MINUEND_PLACES=932, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=943, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=941, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1899, PETRI_PLACES=934, PETRI_TRANSITIONS=943} [2022-11-20 11:31:09,688 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -52 predicate places. [2022-11-20 11:31:09,689 INFO L495 AbstractCegarLoop]: Abstraction has has 934 places, 943 transitions, 1899 flow [2022-11-20 11:31:09,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:09,690 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:09,691 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:09,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:31:09,691 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-20 11:31:09,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:09,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1645676904, now seen corresponding path program 1 times [2022-11-20 11:31:09,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:09,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858501239] [2022-11-20 11:31:09,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:09,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:09,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:09,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:09,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858501239] [2022-11-20 11:31:09,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858501239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:09,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:09,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:31:09,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213743393] [2022-11-20 11:31:09,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:09,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:31:09,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:09,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:31:09,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:31:09,750 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 998 out of 1049 [2022-11-20 11:31:09,754 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 934 places, 943 transitions, 1899 flow. Second operand has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:09,754 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:09,754 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 998 of 1049 [2022-11-20 11:31:09,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:10,286 INFO L130 PetriNetUnfolder]: 48/1484 cut-off events. [2022-11-20 11:31:10,286 INFO L131 PetriNetUnfolder]: For 3/21 co-relation queries the response was YES. [2022-11-20 11:31:10,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1569 conditions, 1484 events. 48/1484 cut-off events. For 3/21 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 6132 event pairs, 18 based on Foata normal form. 0/1289 useless extension candidates. Maximal degree in co-relation 1523. Up to 55 conditions per place. [2022-11-20 11:31:10,315 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 18 selfloop transitions, 2 changer transitions 0/942 dead transitions. [2022-11-20 11:31:10,315 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 935 places, 942 transitions, 1937 flow [2022-11-20 11:31:10,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:31:10,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:31:10,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3015 transitions. [2022-11-20 11:31:10,323 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9580552907530981 [2022-11-20 11:31:10,323 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3015 transitions. [2022-11-20 11:31:10,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3015 transitions. [2022-11-20 11:31:10,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:10,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3015 transitions. [2022-11-20 11:31:10,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1005.0) internal successors, (3015), 3 states have internal predecessors, (3015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:10,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:10,342 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:10,342 INFO L175 Difference]: Start difference. First operand has 934 places, 943 transitions, 1899 flow. Second operand 3 states and 3015 transitions. [2022-11-20 11:31:10,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 935 places, 942 transitions, 1937 flow [2022-11-20 11:31:10,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 933 places, 942 transitions, 1933 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:31:10,363 INFO L231 Difference]: Finished difference. Result has 933 places, 942 transitions, 1897 flow [2022-11-20 11:31:10,365 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1893, PETRI_DIFFERENCE_MINUEND_PLACES=931, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=942, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=940, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1897, PETRI_PLACES=933, PETRI_TRANSITIONS=942} [2022-11-20 11:31:10,366 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -53 predicate places. [2022-11-20 11:31:10,366 INFO L495 AbstractCegarLoop]: Abstraction has has 933 places, 942 transitions, 1897 flow [2022-11-20 11:31:10,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:10,367 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:10,368 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:10,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:31:10,368 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-20 11:31:10,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:10,369 INFO L85 PathProgramCache]: Analyzing trace with hash -902266214, now seen corresponding path program 1 times [2022-11-20 11:31:10,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:10,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067665604] [2022-11-20 11:31:10,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:10,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:10,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:10,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:10,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067665604] [2022-11-20 11:31:10,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067665604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:10,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:10,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:31:10,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605618421] [2022-11-20 11:31:10,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:10,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:31:10,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:10,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:31:10,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:31:10,427 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1001 out of 1049 [2022-11-20 11:31:10,431 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 933 places, 942 transitions, 1897 flow. Second operand has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:10,431 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:10,431 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1001 of 1049 [2022-11-20 11:31:10,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:10,821 INFO L130 PetriNetUnfolder]: 27/1136 cut-off events. [2022-11-20 11:31:10,821 INFO L131 PetriNetUnfolder]: For 6/12 co-relation queries the response was YES. [2022-11-20 11:31:10,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1179 conditions, 1136 events. 27/1136 cut-off events. For 6/12 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3099 event pairs, 6 based on Foata normal form. 0/1002 useless extension candidates. Maximal degree in co-relation 1133. Up to 28 conditions per place. [2022-11-20 11:31:10,842 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 15 selfloop transitions, 2 changer transitions 0/941 dead transitions. [2022-11-20 11:31:10,842 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 934 places, 941 transitions, 1929 flow [2022-11-20 11:31:10,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:31:10,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:31:10,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3021 transitions. [2022-11-20 11:31:10,850 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9599618684461392 [2022-11-20 11:31:10,850 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3021 transitions. [2022-11-20 11:31:10,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3021 transitions. [2022-11-20 11:31:10,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:10,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3021 transitions. [2022-11-20 11:31:10,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1007.0) internal successors, (3021), 3 states have internal predecessors, (3021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:10,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:10,869 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:10,869 INFO L175 Difference]: Start difference. First operand has 933 places, 942 transitions, 1897 flow. Second operand 3 states and 3021 transitions. [2022-11-20 11:31:10,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 934 places, 941 transitions, 1929 flow [2022-11-20 11:31:10,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 932 places, 941 transitions, 1925 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:31:10,890 INFO L231 Difference]: Finished difference. Result has 932 places, 941 transitions, 1895 flow [2022-11-20 11:31:10,892 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1891, PETRI_DIFFERENCE_MINUEND_PLACES=930, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=941, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=939, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1895, PETRI_PLACES=932, PETRI_TRANSITIONS=941} [2022-11-20 11:31:10,893 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -54 predicate places. [2022-11-20 11:31:10,893 INFO L495 AbstractCegarLoop]: Abstraction has has 932 places, 941 transitions, 1895 flow [2022-11-20 11:31:10,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:10,895 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:10,895 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:10,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:31:10,896 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-20 11:31:10,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:10,896 INFO L85 PathProgramCache]: Analyzing trace with hash -587562022, now seen corresponding path program 1 times [2022-11-20 11:31:10,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:10,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841299681] [2022-11-20 11:31:10,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:10,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:10,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:10,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:10,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:10,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841299681] [2022-11-20 11:31:10,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841299681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:10,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:10,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:31:10,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401057882] [2022-11-20 11:31:10,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:10,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:31:10,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:10,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:31:10,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:31:10,958 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 998 out of 1049 [2022-11-20 11:31:10,962 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 932 places, 941 transitions, 1895 flow. Second operand has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:10,963 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:10,963 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 998 of 1049 [2022-11-20 11:31:10,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:11,528 INFO L130 PetriNetUnfolder]: 45/1379 cut-off events. [2022-11-20 11:31:11,528 INFO L131 PetriNetUnfolder]: For 12/44 co-relation queries the response was YES. [2022-11-20 11:31:11,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1455 conditions, 1379 events. 45/1379 cut-off events. For 12/44 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5296 event pairs, 18 based on Foata normal form. 0/1197 useless extension candidates. Maximal degree in co-relation 1409. Up to 55 conditions per place. [2022-11-20 11:31:11,558 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 18 selfloop transitions, 2 changer transitions 0/940 dead transitions. [2022-11-20 11:31:11,558 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 933 places, 940 transitions, 1933 flow [2022-11-20 11:31:11,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:31:11,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:31:11,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3015 transitions. [2022-11-20 11:31:11,565 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9580552907530981 [2022-11-20 11:31:11,565 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3015 transitions. [2022-11-20 11:31:11,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3015 transitions. [2022-11-20 11:31:11,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:11,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3015 transitions. [2022-11-20 11:31:11,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1005.0) internal successors, (3015), 3 states have internal predecessors, (3015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:11,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:11,585 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:11,585 INFO L175 Difference]: Start difference. First operand has 932 places, 941 transitions, 1895 flow. Second operand 3 states and 3015 transitions. [2022-11-20 11:31:11,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 933 places, 940 transitions, 1933 flow [2022-11-20 11:31:11,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 931 places, 940 transitions, 1929 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:31:11,606 INFO L231 Difference]: Finished difference. Result has 931 places, 940 transitions, 1893 flow [2022-11-20 11:31:11,608 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1889, PETRI_DIFFERENCE_MINUEND_PLACES=929, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=940, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=938, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1893, PETRI_PLACES=931, PETRI_TRANSITIONS=940} [2022-11-20 11:31:11,609 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -55 predicate places. [2022-11-20 11:31:11,609 INFO L495 AbstractCegarLoop]: Abstraction has has 931 places, 940 transitions, 1893 flow [2022-11-20 11:31:11,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:11,611 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:11,611 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:11,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:31:11,611 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-20 11:31:11,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:11,612 INFO L85 PathProgramCache]: Analyzing trace with hash -811776114, now seen corresponding path program 1 times [2022-11-20 11:31:11,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:11,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052766707] [2022-11-20 11:31:11,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:11,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:11,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:11,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:11,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052766707] [2022-11-20 11:31:11,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052766707] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:11,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:11,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:31:11,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217529476] [2022-11-20 11:31:11,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:11,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:31:11,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:11,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:31:11,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:31:11,672 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 998 out of 1049 [2022-11-20 11:31:11,676 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 931 places, 940 transitions, 1893 flow. Second operand has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:11,677 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:11,677 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 998 of 1049 [2022-11-20 11:31:11,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:12,200 INFO L130 PetriNetUnfolder]: 45/1340 cut-off events. [2022-11-20 11:31:12,201 INFO L131 PetriNetUnfolder]: For 12/44 co-relation queries the response was YES. [2022-11-20 11:31:12,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1416 conditions, 1340 events. 45/1340 cut-off events. For 12/44 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5106 event pairs, 18 based on Foata normal form. 0/1165 useless extension candidates. Maximal degree in co-relation 1370. Up to 55 conditions per place. [2022-11-20 11:31:12,226 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 18 selfloop transitions, 2 changer transitions 0/939 dead transitions. [2022-11-20 11:31:12,226 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 932 places, 939 transitions, 1931 flow [2022-11-20 11:31:12,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:31:12,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:31:12,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3015 transitions. [2022-11-20 11:31:12,235 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9580552907530981 [2022-11-20 11:31:12,236 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3015 transitions. [2022-11-20 11:31:12,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3015 transitions. [2022-11-20 11:31:12,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:12,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3015 transitions. [2022-11-20 11:31:12,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1005.0) internal successors, (3015), 3 states have internal predecessors, (3015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:12,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:12,258 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:12,259 INFO L175 Difference]: Start difference. First operand has 931 places, 940 transitions, 1893 flow. Second operand 3 states and 3015 transitions. [2022-11-20 11:31:12,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 932 places, 939 transitions, 1931 flow [2022-11-20 11:31:12,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 930 places, 939 transitions, 1927 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:31:12,281 INFO L231 Difference]: Finished difference. Result has 930 places, 939 transitions, 1891 flow [2022-11-20 11:31:12,282 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1887, PETRI_DIFFERENCE_MINUEND_PLACES=928, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=939, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=937, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1891, PETRI_PLACES=930, PETRI_TRANSITIONS=939} [2022-11-20 11:31:12,283 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -56 predicate places. [2022-11-20 11:31:12,284 INFO L495 AbstractCegarLoop]: Abstraction has has 930 places, 939 transitions, 1891 flow [2022-11-20 11:31:12,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:12,285 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:12,285 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:12,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:31:12,286 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-20 11:31:12,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:12,286 INFO L85 PathProgramCache]: Analyzing trace with hash 385789629, now seen corresponding path program 1 times [2022-11-20 11:31:12,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:12,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585812531] [2022-11-20 11:31:12,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:12,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:12,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:12,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:12,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:12,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585812531] [2022-11-20 11:31:12,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585812531] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:12,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:12,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:31:12,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422870146] [2022-11-20 11:31:12,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:12,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:31:12,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:12,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:31:12,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:31:12,352 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1001 out of 1049 [2022-11-20 11:31:12,356 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 930 places, 939 transitions, 1891 flow. Second operand has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:12,357 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:12,357 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1001 of 1049 [2022-11-20 11:31:12,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:12,748 INFO L130 PetriNetUnfolder]: 24/972 cut-off events. [2022-11-20 11:31:12,749 INFO L131 PetriNetUnfolder]: For 9/11 co-relation queries the response was YES. [2022-11-20 11:31:12,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1011 conditions, 972 events. 24/972 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2303 event pairs, 6 based on Foata normal form. 0/869 useless extension candidates. Maximal degree in co-relation 965. Up to 27 conditions per place. [2022-11-20 11:31:12,771 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 14 selfloop transitions, 2 changer transitions 0/938 dead transitions. [2022-11-20 11:31:12,771 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 931 places, 938 transitions, 1921 flow [2022-11-20 11:31:12,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:31:12,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:31:12,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3020 transitions. [2022-11-20 11:31:12,779 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9596441054972991 [2022-11-20 11:31:12,779 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3020 transitions. [2022-11-20 11:31:12,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3020 transitions. [2022-11-20 11:31:12,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:12,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3020 transitions. [2022-11-20 11:31:12,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1006.6666666666666) internal successors, (3020), 3 states have internal predecessors, (3020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:12,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:12,795 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:12,795 INFO L175 Difference]: Start difference. First operand has 930 places, 939 transitions, 1891 flow. Second operand 3 states and 3020 transitions. [2022-11-20 11:31:12,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 931 places, 938 transitions, 1921 flow [2022-11-20 11:31:12,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 929 places, 938 transitions, 1917 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:31:12,818 INFO L231 Difference]: Finished difference. Result has 929 places, 938 transitions, 1889 flow [2022-11-20 11:31:12,820 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1885, PETRI_DIFFERENCE_MINUEND_PLACES=927, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=938, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=936, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1889, PETRI_PLACES=929, PETRI_TRANSITIONS=938} [2022-11-20 11:31:12,821 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -57 predicate places. [2022-11-20 11:31:12,822 INFO L495 AbstractCegarLoop]: Abstraction has has 929 places, 938 transitions, 1889 flow [2022-11-20 11:31:12,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:12,823 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:12,823 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:12,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:31:12,824 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-20 11:31:12,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:12,824 INFO L85 PathProgramCache]: Analyzing trace with hash -356878113, now seen corresponding path program 1 times [2022-11-20 11:31:12,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:12,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300269879] [2022-11-20 11:31:12,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:12,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:12,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:12,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:12,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:12,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300269879] [2022-11-20 11:31:12,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300269879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:12,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:12,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:31:12,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786275539] [2022-11-20 11:31:12,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:12,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:31:12,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:12,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:31:12,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:31:12,903 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 998 out of 1049 [2022-11-20 11:31:12,907 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 929 places, 938 transitions, 1889 flow. Second operand has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:12,907 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:12,907 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 998 of 1049 [2022-11-20 11:31:12,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:13,353 INFO L130 PetriNetUnfolder]: 42/1215 cut-off events. [2022-11-20 11:31:13,353 INFO L131 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2022-11-20 11:31:13,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1282 conditions, 1215 events. 42/1215 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3863 event pairs, 18 based on Foata normal form. 0/1063 useless extension candidates. Maximal degree in co-relation 1236. Up to 55 conditions per place. [2022-11-20 11:31:13,378 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 18 selfloop transitions, 2 changer transitions 0/937 dead transitions. [2022-11-20 11:31:13,378 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 930 places, 937 transitions, 1927 flow [2022-11-20 11:31:13,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:31:13,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:31:13,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3015 transitions. [2022-11-20 11:31:13,384 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9580552907530981 [2022-11-20 11:31:13,384 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3015 transitions. [2022-11-20 11:31:13,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3015 transitions. [2022-11-20 11:31:13,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:13,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3015 transitions. [2022-11-20 11:31:13,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1005.0) internal successors, (3015), 3 states have internal predecessors, (3015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:13,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:13,396 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:13,396 INFO L175 Difference]: Start difference. First operand has 929 places, 938 transitions, 1889 flow. Second operand 3 states and 3015 transitions. [2022-11-20 11:31:13,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 930 places, 937 transitions, 1927 flow [2022-11-20 11:31:13,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 928 places, 937 transitions, 1923 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:31:13,416 INFO L231 Difference]: Finished difference. Result has 928 places, 937 transitions, 1887 flow [2022-11-20 11:31:13,418 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1883, PETRI_DIFFERENCE_MINUEND_PLACES=926, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=937, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=935, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1887, PETRI_PLACES=928, PETRI_TRANSITIONS=937} [2022-11-20 11:31:13,419 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -58 predicate places. [2022-11-20 11:31:13,419 INFO L495 AbstractCegarLoop]: Abstraction has has 928 places, 937 transitions, 1887 flow [2022-11-20 11:31:13,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:13,420 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:13,420 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:13,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 11:31:13,421 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-20 11:31:13,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:13,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1619813214, now seen corresponding path program 1 times [2022-11-20 11:31:13,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:13,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848627209] [2022-11-20 11:31:13,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:13,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:13,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:13,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:13,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:13,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848627209] [2022-11-20 11:31:13,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848627209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:13,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:13,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:31:13,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532041139] [2022-11-20 11:31:13,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:13,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:31:13,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:13,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:31:13,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:31:13,475 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 998 out of 1049 [2022-11-20 11:31:13,478 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 928 places, 937 transitions, 1887 flow. Second operand has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:13,478 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:13,478 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 998 of 1049 [2022-11-20 11:31:13,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:13,839 INFO L130 PetriNetUnfolder]: 42/1176 cut-off events. [2022-11-20 11:31:13,840 INFO L131 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2022-11-20 11:31:13,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1243 conditions, 1176 events. 42/1176 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3657 event pairs, 18 based on Foata normal form. 0/1031 useless extension candidates. Maximal degree in co-relation 1197. Up to 55 conditions per place. [2022-11-20 11:31:13,904 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 18 selfloop transitions, 2 changer transitions 0/936 dead transitions. [2022-11-20 11:31:13,904 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 929 places, 936 transitions, 1925 flow [2022-11-20 11:31:13,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:31:13,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:31:13,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3015 transitions. [2022-11-20 11:31:13,909 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9580552907530981 [2022-11-20 11:31:13,909 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3015 transitions. [2022-11-20 11:31:13,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3015 transitions. [2022-11-20 11:31:13,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:13,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3015 transitions. [2022-11-20 11:31:13,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1005.0) internal successors, (3015), 3 states have internal predecessors, (3015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:13,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:13,922 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:13,922 INFO L175 Difference]: Start difference. First operand has 928 places, 937 transitions, 1887 flow. Second operand 3 states and 3015 transitions. [2022-11-20 11:31:13,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 929 places, 936 transitions, 1925 flow [2022-11-20 11:31:13,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 927 places, 936 transitions, 1921 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:31:13,938 INFO L231 Difference]: Finished difference. Result has 927 places, 936 transitions, 1885 flow [2022-11-20 11:31:13,940 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1881, PETRI_DIFFERENCE_MINUEND_PLACES=925, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=936, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=934, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1885, PETRI_PLACES=927, PETRI_TRANSITIONS=936} [2022-11-20 11:31:13,941 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -59 predicate places. [2022-11-20 11:31:13,942 INFO L495 AbstractCegarLoop]: Abstraction has has 927 places, 936 transitions, 1885 flow [2022-11-20 11:31:13,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:13,943 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:13,943 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:13,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 11:31:13,943 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-20 11:31:13,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:13,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1596884669, now seen corresponding path program 1 times [2022-11-20 11:31:13,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:13,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020372391] [2022-11-20 11:31:13,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:13,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:14,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:14,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:14,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020372391] [2022-11-20 11:31:14,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020372391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:14,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:14,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:31:14,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771291817] [2022-11-20 11:31:14,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:14,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:31:14,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:14,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:31:14,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:31:14,037 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 995 out of 1049 [2022-11-20 11:31:14,040 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 927 places, 936 transitions, 1885 flow. Second operand has 3 states, 3 states have (on average 996.3333333333334) internal successors, (2989), 3 states have internal predecessors, (2989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:14,040 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:14,041 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 995 of 1049 [2022-11-20 11:31:14,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:14,849 INFO L130 PetriNetUnfolder]: 108/2537 cut-off events. [2022-11-20 11:31:14,849 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-11-20 11:31:14,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2709 conditions, 2537 events. 108/2537 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 14356 event pairs, 60 based on Foata normal form. 0/2174 useless extension candidates. Maximal degree in co-relation 2663. Up to 148 conditions per place. [2022-11-20 11:31:14,908 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 21 selfloop transitions, 2 changer transitions 0/935 dead transitions. [2022-11-20 11:31:14,908 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 928 places, 935 transitions, 1929 flow [2022-11-20 11:31:14,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:31:14,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:31:14,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3009 transitions. [2022-11-20 11:31:14,914 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9561487130600572 [2022-11-20 11:31:14,914 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3009 transitions. [2022-11-20 11:31:14,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3009 transitions. [2022-11-20 11:31:14,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:14,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3009 transitions. [2022-11-20 11:31:14,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1003.0) internal successors, (3009), 3 states have internal predecessors, (3009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:14,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:14,926 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:14,926 INFO L175 Difference]: Start difference. First operand has 927 places, 936 transitions, 1885 flow. Second operand 3 states and 3009 transitions. [2022-11-20 11:31:14,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 928 places, 935 transitions, 1929 flow [2022-11-20 11:31:14,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 926 places, 935 transitions, 1925 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:31:14,944 INFO L231 Difference]: Finished difference. Result has 926 places, 935 transitions, 1883 flow [2022-11-20 11:31:14,945 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1879, PETRI_DIFFERENCE_MINUEND_PLACES=924, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=935, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=933, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1883, PETRI_PLACES=926, PETRI_TRANSITIONS=935} [2022-11-20 11:31:14,946 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -60 predicate places. [2022-11-20 11:31:14,946 INFO L495 AbstractCegarLoop]: Abstraction has has 926 places, 935 transitions, 1883 flow [2022-11-20 11:31:14,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 996.3333333333334) internal successors, (2989), 3 states have internal predecessors, (2989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:14,948 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:14,948 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:14,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 11:31:14,948 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-20 11:31:14,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:14,949 INFO L85 PathProgramCache]: Analyzing trace with hash 502435199, now seen corresponding path program 1 times [2022-11-20 11:31:14,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:14,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933123068] [2022-11-20 11:31:14,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:14,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:15,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:15,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:15,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933123068] [2022-11-20 11:31:15,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933123068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:15,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:15,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:31:15,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051576267] [2022-11-20 11:31:15,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:15,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:15,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:15,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:15,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:31:15,663 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 845 out of 1049 [2022-11-20 11:31:15,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 926 places, 935 transitions, 1883 flow. Second operand has 6 states, 6 states have (on average 846.8333333333334) internal successors, (5081), 6 states have internal predecessors, (5081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:15,667 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:15,668 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 845 of 1049 [2022-11-20 11:31:15,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand