./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-sre-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de9f248-ab05-4c6b-aa3a-4b059ede4069/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de9f248-ab05-4c6b-aa3a-4b059ede4069/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_9de9f248-ab05-4c6b-aa3a-4b059ede4069/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de9f248-ab05-4c6b-aa3a-4b059ede4069/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-sre-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de9f248-ab05-4c6b-aa3a-4b059ede4069/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_9de9f248-ab05-4c6b-aa3a-4b059ede4069/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 672ab63d50f6d257836fb16bc257f69b3b166ee79333dc7cfe86a969c93c0f7f --- 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 11:55:06,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:55:06,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:55:06,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:55:06,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:55:06,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:55:06,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:55:06,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:55:06,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:55:06,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:55:06,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:55:06,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:55:06,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:55:06,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:55:06,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:55:06,106 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:55:06,107 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:55:06,108 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:55:06,110 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:55:06,112 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:55:06,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:55:06,115 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:55:06,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:55:06,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:55:06,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:55:06,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:55:06,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:55:06,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:55:06,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:55:06,125 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:55:06,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:55:06,126 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:55:06,127 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:55:06,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:55:06,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:55:06,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:55:06,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:55:06,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:55:06,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:55:06,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:55:06,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:55:06,134 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de9f248-ab05-4c6b-aa3a-4b059ede4069/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:55:06,157 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:55:06,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:55:06,158 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:55:06,158 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:55:06,159 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:55:06,159 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:55:06,160 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:55:06,160 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:55:06,160 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:55:06,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:55:06,161 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:55:06,161 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:55:06,162 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:55:06,162 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:55:06,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:55:06,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:55:06,163 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:55:06,163 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:55:06,163 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:55:06,164 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:55:06,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:55:06,164 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:55:06,164 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:55:06,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:55:06,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:55:06,165 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:55:06,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:55:06,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:55:06,166 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:55:06,166 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:55:06,166 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:55:06,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:55:06,167 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:55:06,167 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:55:06,167 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:55:06,168 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_9de9f248-ab05-4c6b-aa3a-4b059ede4069/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de9f248-ab05-4c6b-aa3a-4b059ede4069/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 672ab63d50f6d257836fb16bc257f69b3b166ee79333dc7cfe86a969c93c0f7f [2022-11-20 11:55:06,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:55:06,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:55:06,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:55:06,426 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:55:06,426 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:55:06,427 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de9f248-ab05-4c6b-aa3a-4b059ede4069/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/chl-sre-trans.wvr.c [2022-11-20 11:55:09,511 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:55:09,690 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:55:09,690 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de9f248-ab05-4c6b-aa3a-4b059ede4069/sv-benchmarks/c/weaver/chl-sre-trans.wvr.c [2022-11-20 11:55:09,697 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de9f248-ab05-4c6b-aa3a-4b059ede4069/bin/uautomizer-ug76WZFUDN/data/e577c7209/5116d1d6d7e64fc1bc2e3abbde19d04c/FLAG1c764f69e [2022-11-20 11:55:09,712 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de9f248-ab05-4c6b-aa3a-4b059ede4069/bin/uautomizer-ug76WZFUDN/data/e577c7209/5116d1d6d7e64fc1bc2e3abbde19d04c [2022-11-20 11:55:09,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:55:09,716 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:55:09,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:55:09,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:55:09,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:55:09,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:55:09" (1/1) ... [2022-11-20 11:55:09,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@101cda63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:09, skipping insertion in model container [2022-11-20 11:55:09,724 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:55:09" (1/1) ... [2022-11-20 11:55:09,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:55:09,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:55:09,930 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_9de9f248-ab05-4c6b-aa3a-4b059ede4069/sv-benchmarks/c/weaver/chl-sre-trans.wvr.c[2272,2285] [2022-11-20 11:55:09,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:55:09,941 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:55:09,967 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_9de9f248-ab05-4c6b-aa3a-4b059ede4069/sv-benchmarks/c/weaver/chl-sre-trans.wvr.c[2272,2285] [2022-11-20 11:55:09,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:55:09,983 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:55:09,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:09 WrapperNode [2022-11-20 11:55:09,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:55:09,985 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:55:09,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:55:09,985 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:55:09,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:09" (1/1) ... [2022-11-20 11:55:10,002 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:09" (1/1) ... [2022-11-20 11:55:10,030 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 111 [2022-11-20 11:55:10,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:55:10,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:55:10,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:55:10,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:55:10,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:09" (1/1) ... [2022-11-20 11:55:10,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:09" (1/1) ... [2022-11-20 11:55:10,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:09" (1/1) ... [2022-11-20 11:55:10,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:09" (1/1) ... [2022-11-20 11:55:10,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:09" (1/1) ... [2022-11-20 11:55:10,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:09" (1/1) ... [2022-11-20 11:55:10,057 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:09" (1/1) ... [2022-11-20 11:55:10,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:09" (1/1) ... [2022-11-20 11:55:10,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:55:10,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:55:10,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:55:10,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:55:10,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:09" (1/1) ... [2022-11-20 11:55:10,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:55:10,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de9f248-ab05-4c6b-aa3a-4b059ede4069/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:55:10,098 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de9f248-ab05-4c6b-aa3a-4b059ede4069/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:55:10,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de9f248-ab05-4c6b-aa3a-4b059ede4069/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:55:10,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:55:10,135 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 11:55:10,135 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 11:55:10,136 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 11:55:10,136 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 11:55:10,138 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 11:55:10,139 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 11:55:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:55:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:55:10,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:55:10,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:55:10,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:55:10,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:55:10,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:55:10,146 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 11:55:10,259 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:55:10,261 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:55:10,697 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:55:10,713 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:55:10,713 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:55:10,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:55:10 BoogieIcfgContainer [2022-11-20 11:55:10,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:55:10,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:55:10,718 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:55:10,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:55:10,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:55:09" (1/3) ... [2022-11-20 11:55:10,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d95d22e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:55:10, skipping insertion in model container [2022-11-20 11:55:10,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:09" (2/3) ... [2022-11-20 11:55:10,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d95d22e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:55:10, skipping insertion in model container [2022-11-20 11:55:10,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:55:10" (3/3) ... [2022-11-20 11:55:10,729 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-sre-trans.wvr.c [2022-11-20 11:55:10,737 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:55:10,745 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:55:10,745 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2022-11-20 11:55:10,745 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:55:10,877 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 11:55:10,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 194 transitions, 412 flow [2022-11-20 11:55:11,041 INFO L130 PetriNetUnfolder]: 6/191 cut-off events. [2022-11-20 11:55:11,041 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 11:55:11,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 191 events. 6/191 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 265 event pairs, 0 based on Foata normal form. 0/164 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2022-11-20 11:55:11,057 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 194 transitions, 412 flow [2022-11-20 11:55:11,070 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 173 places, 167 transitions, 352 flow [2022-11-20 11:55:11,085 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:55:11,092 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;@55c70c44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:55:11,092 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2022-11-20 11:55:11,099 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2022-11-20 11:55:11,099 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:55:11,099 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:55:11,100 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:11,100 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 11:55:11,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:11,106 INFO L85 PathProgramCache]: Analyzing trace with hash 334477279, now seen corresponding path program 1 times [2022-11-20 11:55:11,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:11,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874783264] [2022-11-20 11:55:11,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:11,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:11,300 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 11:55:11,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:11,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874783264] [2022-11-20 11:55:11,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874783264] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:11,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:11,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:55:11,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999865861] [2022-11-20 11:55:11,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:11,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:55:11,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:11,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:55:11,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:55:11,348 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 194 [2022-11-20 11:55:11,352 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 167 transitions, 352 flow. Second operand has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 0 states have call successors, (0), 0 states 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 11:55:11,352 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:55:11,352 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 194 [2022-11-20 11:55:11,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:55:11,563 INFO L130 PetriNetUnfolder]: 32/341 cut-off events. [2022-11-20 11:55:11,564 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-11-20 11:55:11,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 432 conditions, 341 events. 32/341 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1197 event pairs, 21 based on Foata normal form. 0/268 useless extension candidates. Maximal degree in co-relation 266. Up to 58 conditions per place. [2022-11-20 11:55:11,576 INFO L137 encePairwiseOnDemand]: 191/194 looper letters, 15 selfloop transitions, 2 changer transitions 0/166 dead transitions. [2022-11-20 11:55:11,576 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 166 transitions, 384 flow [2022-11-20 11:55:11,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:55:11,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:55:11,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 540 transitions. [2022-11-20 11:55:11,599 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9278350515463918 [2022-11-20 11:55:11,601 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 540 transitions. [2022-11-20 11:55:11,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 540 transitions. [2022-11-20 11:55:11,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:55:11,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 540 transitions. [2022-11-20 11:55:11,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states 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 11:55:11,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states 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 11:55:11,626 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states 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 11:55:11,628 INFO L175 Difference]: Start difference. First operand has 173 places, 167 transitions, 352 flow. Second operand 3 states and 540 transitions. [2022-11-20 11:55:11,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 166 transitions, 384 flow [2022-11-20 11:55:11,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 166 transitions, 372 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 11:55:11,639 INFO L231 Difference]: Finished difference. Result has 168 places, 166 transitions, 342 flow [2022-11-20 11:55:11,642 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=168, PETRI_TRANSITIONS=166} [2022-11-20 11:55:11,647 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -5 predicate places. [2022-11-20 11:55:11,648 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 166 transitions, 342 flow [2022-11-20 11:55:11,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 0 states have call successors, (0), 0 states 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 11:55:11,649 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:55:11,649 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:11,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:55:11,650 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 11:55:11,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:11,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1697799537, now seen corresponding path program 1 times [2022-11-20 11:55:11,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:11,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460007061] [2022-11-20 11:55:11,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:11,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:11,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:11,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:55:11,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:11,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460007061] [2022-11-20 11:55:11,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460007061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:11,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:11,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:55:11,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552243364] [2022-11-20 11:55:11,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:11,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:55:11,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:11,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:55:11,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:55:11,796 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 194 [2022-11-20 11:55:11,799 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 166 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states 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 11:55:11,800 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:55:11,800 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 194 [2022-11-20 11:55:11,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:55:11,969 INFO L130 PetriNetUnfolder]: 95/606 cut-off events. [2022-11-20 11:55:11,970 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-20 11:55:11,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 796 conditions, 606 events. 95/606 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3672 event pairs, 72 based on Foata normal form. 0/473 useless extension candidates. Maximal degree in co-relation 763. Up to 148 conditions per place. [2022-11-20 11:55:11,977 INFO L137 encePairwiseOnDemand]: 191/194 looper letters, 18 selfloop transitions, 2 changer transitions 0/165 dead transitions. [2022-11-20 11:55:11,977 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 165 transitions, 380 flow [2022-11-20 11:55:11,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:55:11,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:55:11,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 534 transitions. [2022-11-20 11:55:11,981 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9175257731958762 [2022-11-20 11:55:11,981 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 534 transitions. [2022-11-20 11:55:11,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 534 transitions. [2022-11-20 11:55:11,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:55:11,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 534 transitions. [2022-11-20 11:55:11,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states 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 11:55:11,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states 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 11:55:11,987 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states 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 11:55:11,987 INFO L175 Difference]: Start difference. First operand has 168 places, 166 transitions, 342 flow. Second operand 3 states and 534 transitions. [2022-11-20 11:55:11,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 165 transitions, 380 flow [2022-11-20 11:55:11,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 165 transitions, 376 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:55:11,994 INFO L231 Difference]: Finished difference. Result has 167 places, 165 transitions, 340 flow [2022-11-20 11:55:11,994 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=167, PETRI_TRANSITIONS=165} [2022-11-20 11:55:11,995 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -6 predicate places. [2022-11-20 11:55:11,996 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 165 transitions, 340 flow [2022-11-20 11:55:11,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states 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 11:55:11,997 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:55:11,997 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:11,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:55:11,997 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 11:55:11,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:11,998 INFO L85 PathProgramCache]: Analyzing trace with hash -597927757, now seen corresponding path program 1 times [2022-11-20 11:55:11,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:11,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67946082] [2022-11-20 11:55:11,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:12,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:12,092 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 11:55:12,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:12,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67946082] [2022-11-20 11:55:12,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67946082] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:12,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:12,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:55:12,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971240415] [2022-11-20 11:55:12,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:12,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:55:12,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:12,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:55:12,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:55:12,096 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 194 [2022-11-20 11:55:12,097 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 165 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states 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 11:55:12,097 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:55:12,097 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 194 [2022-11-20 11:55:12,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:55:12,227 INFO L130 PetriNetUnfolder]: 153/613 cut-off events. [2022-11-20 11:55:12,227 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-11-20 11:55:12,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 878 conditions, 613 events. 153/613 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3569 event pairs, 132 based on Foata normal form. 0/472 useless extension candidates. Maximal degree in co-relation 839. Up to 250 conditions per place. [2022-11-20 11:55:12,234 INFO L137 encePairwiseOnDemand]: 191/194 looper letters, 21 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2022-11-20 11:55:12,235 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 164 transitions, 384 flow [2022-11-20 11:55:12,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:55:12,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:55:12,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 528 transitions. [2022-11-20 11:55:12,237 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9072164948453608 [2022-11-20 11:55:12,237 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 528 transitions. [2022-11-20 11:55:12,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 528 transitions. [2022-11-20 11:55:12,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:55:12,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 528 transitions. [2022-11-20 11:55:12,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states 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 11:55:12,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states 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 11:55:12,241 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states 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 11:55:12,241 INFO L175 Difference]: Start difference. First operand has 167 places, 165 transitions, 340 flow. Second operand 3 states and 528 transitions. [2022-11-20 11:55:12,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 164 transitions, 384 flow [2022-11-20 11:55:12,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 164 transitions, 380 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:55:12,245 INFO L231 Difference]: Finished difference. Result has 166 places, 164 transitions, 338 flow [2022-11-20 11:55:12,245 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=166, PETRI_TRANSITIONS=164} [2022-11-20 11:55:12,246 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -7 predicate places. [2022-11-20 11:55:12,246 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 164 transitions, 338 flow [2022-11-20 11:55:12,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states 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 11:55:12,247 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:55:12,247 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] [2022-11-20 11:55:12,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:55:12,247 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 11:55:12,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:12,248 INFO L85 PathProgramCache]: Analyzing trace with hash -894613005, now seen corresponding path program 1 times [2022-11-20 11:55:12,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:12,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793102517] [2022-11-20 11:55:12,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:12,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:12,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:12,301 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 11:55:12,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:12,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793102517] [2022-11-20 11:55:12,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793102517] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:12,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:12,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:55:12,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734970881] [2022-11-20 11:55:12,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:12,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:55:12,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:12,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:55:12,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:55:12,304 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 194 [2022-11-20 11:55:12,305 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 164 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 states 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 11:55:12,305 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:55:12,306 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 194 [2022-11-20 11:55:12,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:55:12,385 INFO L130 PetriNetUnfolder]: 22/300 cut-off events. [2022-11-20 11:55:12,385 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-20 11:55:12,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 300 events. 22/300 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 931 event pairs, 6 based on Foata normal form. 0/251 useless extension candidates. Maximal degree in co-relation 302. Up to 31 conditions per place. [2022-11-20 11:55:12,388 INFO L137 encePairwiseOnDemand]: 190/194 looper letters, 14 selfloop transitions, 2 changer transitions 0/166 dead transitions. [2022-11-20 11:55:12,388 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 166 transitions, 376 flow [2022-11-20 11:55:12,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:55:12,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:55:12,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 549 transitions. [2022-11-20 11:55:12,391 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9432989690721649 [2022-11-20 11:55:12,391 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 549 transitions. [2022-11-20 11:55:12,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 549 transitions. [2022-11-20 11:55:12,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:55:12,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 549 transitions. [2022-11-20 11:55:12,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 0 states 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 11:55:12,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states 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 11:55:12,400 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states 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 11:55:12,401 INFO L175 Difference]: Start difference. First operand has 166 places, 164 transitions, 338 flow. Second operand 3 states and 549 transitions. [2022-11-20 11:55:12,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 166 transitions, 376 flow [2022-11-20 11:55:12,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 166 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:55:12,407 INFO L231 Difference]: Finished difference. Result has 165 places, 164 transitions, 344 flow [2022-11-20 11:55:12,407 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=165, PETRI_TRANSITIONS=164} [2022-11-20 11:55:12,413 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -8 predicate places. [2022-11-20 11:55:12,414 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 164 transitions, 344 flow [2022-11-20 11:55:12,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 states 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 11:55:12,415 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:55:12,415 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] [2022-11-20 11:55:12,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:55:12,415 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 11:55:12,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:12,416 INFO L85 PathProgramCache]: Analyzing trace with hash -729624491, now seen corresponding path program 1 times [2022-11-20 11:55:12,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:12,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747450803] [2022-11-20 11:55:12,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:12,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:12,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:12,499 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 11:55:12,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:12,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747450803] [2022-11-20 11:55:12,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747450803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:12,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:12,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:55:12,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226971591] [2022-11-20 11:55:12,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:12,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:55:12,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:12,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:55:12,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:55:12,504 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 194 [2022-11-20 11:55:12,505 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 164 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 0 states have call successors, (0), 0 states 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 11:55:12,505 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:55:12,505 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 194 [2022-11-20 11:55:12,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:55:12,617 INFO L130 PetriNetUnfolder]: 58/548 cut-off events. [2022-11-20 11:55:12,617 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-20 11:55:12,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 661 conditions, 548 events. 58/548 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3234 event pairs, 29 based on Foata normal form. 0/456 useless extension candidates. Maximal degree in co-relation 558. Up to 73 conditions per place. [2022-11-20 11:55:12,622 INFO L137 encePairwiseOnDemand]: 189/194 looper letters, 16 selfloop transitions, 2 changer transitions 0/165 dead transitions. [2022-11-20 11:55:12,623 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 165 transitions, 384 flow [2022-11-20 11:55:12,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:55:12,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:55:12,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 543 transitions. [2022-11-20 11:55:12,625 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9329896907216495 [2022-11-20 11:55:12,626 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 543 transitions. [2022-11-20 11:55:12,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 543 transitions. [2022-11-20 11:55:12,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:55:12,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 543 transitions. [2022-11-20 11:55:12,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states 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 11:55:12,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states 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 11:55:12,630 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states 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 11:55:12,631 INFO L175 Difference]: Start difference. First operand has 165 places, 164 transitions, 344 flow. Second operand 3 states and 543 transitions. [2022-11-20 11:55:12,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 165 transitions, 384 flow [2022-11-20 11:55:12,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 165 transitions, 384 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:55:12,635 INFO L231 Difference]: Finished difference. Result has 165 places, 163 transitions, 352 flow [2022-11-20 11:55:12,636 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=352, PETRI_PLACES=165, PETRI_TRANSITIONS=163} [2022-11-20 11:55:12,636 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -8 predicate places. [2022-11-20 11:55:12,637 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 163 transitions, 352 flow [2022-11-20 11:55:12,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 0 states have call successors, (0), 0 states 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 11:55:12,638 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:55:12,638 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 11:55:12,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:55:12,638 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 11:55:12,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:12,639 INFO L85 PathProgramCache]: Analyzing trace with hash -116345654, now seen corresponding path program 1 times [2022-11-20 11:55:12,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:12,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029517076] [2022-11-20 11:55:12,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:12,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:12,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:12,684 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 11:55:12,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:12,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029517076] [2022-11-20 11:55:12,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029517076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:12,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:12,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:55:12,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570208578] [2022-11-20 11:55:12,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:12,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:55:12,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:12,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:55:12,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:55:12,688 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 194 [2022-11-20 11:55:12,689 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 163 transitions, 352 flow. Second operand has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states 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 11:55:12,689 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:55:12,690 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 194 [2022-11-20 11:55:12,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:55:12,842 INFO L130 PetriNetUnfolder]: 133/732 cut-off events. [2022-11-20 11:55:12,842 INFO L131 PetriNetUnfolder]: For 31/35 co-relation queries the response was YES. [2022-11-20 11:55:12,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 972 conditions, 732 events. 133/732 cut-off events. For 31/35 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4560 event pairs, 80 based on Foata normal form. 0/631 useless extension candidates. Maximal degree in co-relation 756. Up to 202 conditions per place. [2022-11-20 11:55:12,849 INFO L137 encePairwiseOnDemand]: 188/194 looper letters, 18 selfloop transitions, 2 changer transitions 0/163 dead transitions. [2022-11-20 11:55:12,849 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 163 transitions, 394 flow [2022-11-20 11:55:12,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:55:12,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:55:12,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 537 transitions. [2022-11-20 11:55:12,851 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9226804123711341 [2022-11-20 11:55:12,852 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 537 transitions. [2022-11-20 11:55:12,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 537 transitions. [2022-11-20 11:55:12,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:55:12,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 537 transitions. [2022-11-20 11:55:12,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states 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 11:55:12,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states 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 11:55:12,856 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states 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 11:55:12,856 INFO L175 Difference]: Start difference. First operand has 165 places, 163 transitions, 352 flow. Second operand 3 states and 537 transitions. [2022-11-20 11:55:12,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 163 transitions, 394 flow [2022-11-20 11:55:12,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 163 transitions, 394 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:55:12,860 INFO L231 Difference]: Finished difference. Result has 164 places, 161 transitions, 358 flow [2022-11-20 11:55:12,860 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=358, PETRI_PLACES=164, PETRI_TRANSITIONS=161} [2022-11-20 11:55:12,861 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -9 predicate places. [2022-11-20 11:55:12,861 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 161 transitions, 358 flow [2022-11-20 11:55:12,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states 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 11:55:12,862 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:55:12,862 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 11:55:12,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:55:12,863 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 11:55:12,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:12,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1700815108, now seen corresponding path program 1 times [2022-11-20 11:55:12,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:12,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538517534] [2022-11-20 11:55:12,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:12,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:12,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:12,911 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 11:55:12,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:12,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538517534] [2022-11-20 11:55:12,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538517534] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:12,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:12,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:55:12,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414293727] [2022-11-20 11:55:12,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:12,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:55:12,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:12,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:55:12,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:55:12,915 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 194 [2022-11-20 11:55:12,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 161 transitions, 358 flow. Second operand has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states 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 11:55:12,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:55:12,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 194 [2022-11-20 11:55:12,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:55:12,985 INFO L130 PetriNetUnfolder]: 26/340 cut-off events. [2022-11-20 11:55:12,985 INFO L131 PetriNetUnfolder]: For 3/6 co-relation queries the response was YES. [2022-11-20 11:55:12,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 340 events. 26/340 cut-off events. For 3/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1420 event pairs, 4 based on Foata normal form. 1/308 useless extension candidates. Maximal degree in co-relation 321. Up to 20 conditions per place. [2022-11-20 11:55:12,988 INFO L137 encePairwiseOnDemand]: 191/194 looper letters, 13 selfloop transitions, 2 changer transitions 0/162 dead transitions. [2022-11-20 11:55:12,989 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 162 transitions, 392 flow [2022-11-20 11:55:12,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:55:12,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:55:12,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 550 transitions. [2022-11-20 11:55:12,991 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9450171821305842 [2022-11-20 11:55:12,991 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 550 transitions. [2022-11-20 11:55:12,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 550 transitions. [2022-11-20 11:55:12,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:55:12,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 550 transitions. [2022-11-20 11:55:12,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 0 states have call successors, (0), 0 states 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 11:55:12,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states 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 11:55:12,995 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states 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 11:55:12,995 INFO L175 Difference]: Start difference. First operand has 164 places, 161 transitions, 358 flow. Second operand 3 states and 550 transitions. [2022-11-20 11:55:12,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 162 transitions, 392 flow [2022-11-20 11:55:12,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 162 transitions, 392 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:55:12,999 INFO L231 Difference]: Finished difference. Result has 165 places, 160 transitions, 360 flow [2022-11-20 11:55:12,999 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=360, PETRI_PLACES=165, PETRI_TRANSITIONS=160} [2022-11-20 11:55:13,000 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -8 predicate places. [2022-11-20 11:55:13,000 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 160 transitions, 360 flow [2022-11-20 11:55:13,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states 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 11:55:13,001 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:55:13,001 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] [2022-11-20 11:55:13,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:55:13,001 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 11:55:13,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:13,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1036611599, now seen corresponding path program 1 times [2022-11-20 11:55:13,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:13,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636819724] [2022-11-20 11:55:13,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:13,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:13,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:13,049 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 11:55:13,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:13,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636819724] [2022-11-20 11:55:13,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636819724] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:13,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:13,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:55:13,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509997955] [2022-11-20 11:55:13,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:13,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:55:13,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:13,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:55:13,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:55:13,053 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 194 [2022-11-20 11:55:13,054 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 160 transitions, 360 flow. Second operand has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 0 states have call successors, (0), 0 states 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 11:55:13,054 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:55:13,054 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 194 [2022-11-20 11:55:13,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:55:13,163 INFO L130 PetriNetUnfolder]: 30/363 cut-off events. [2022-11-20 11:55:13,164 INFO L131 PetriNetUnfolder]: For 7/10 co-relation queries the response was YES. [2022-11-20 11:55:13,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 457 conditions, 363 events. 30/363 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1601 event pairs, 6 based on Foata normal form. 1/330 useless extension candidates. Maximal degree in co-relation 376. Up to 26 conditions per place. [2022-11-20 11:55:13,167 INFO L137 encePairwiseOnDemand]: 191/194 looper letters, 13 selfloop transitions, 2 changer transitions 0/161 dead transitions. [2022-11-20 11:55:13,167 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 161 transitions, 394 flow [2022-11-20 11:55:13,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:55:13,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:55:13,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 550 transitions. [2022-11-20 11:55:13,169 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9450171821305842 [2022-11-20 11:55:13,169 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 550 transitions. [2022-11-20 11:55:13,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 550 transitions. [2022-11-20 11:55:13,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:55:13,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 550 transitions. [2022-11-20 11:55:13,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 0 states have call successors, (0), 0 states 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 11:55:13,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states 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 11:55:13,173 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states 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 11:55:13,173 INFO L175 Difference]: Start difference. First operand has 165 places, 160 transitions, 360 flow. Second operand 3 states and 550 transitions. [2022-11-20 11:55:13,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 161 transitions, 394 flow [2022-11-20 11:55:13,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 161 transitions, 390 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:55:13,177 INFO L231 Difference]: Finished difference. Result has 164 places, 159 transitions, 358 flow [2022-11-20 11:55:13,178 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=358, PETRI_PLACES=164, PETRI_TRANSITIONS=159} [2022-11-20 11:55:13,181 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -9 predicate places. [2022-11-20 11:55:13,181 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 159 transitions, 358 flow [2022-11-20 11:55:13,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 0 states have call successors, (0), 0 states 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 11:55:13,182 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:55:13,182 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:13,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:55:13,182 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 11:55:13,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:13,183 INFO L85 PathProgramCache]: Analyzing trace with hash -848035137, now seen corresponding path program 1 times [2022-11-20 11:55:13,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:13,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512900983] [2022-11-20 11:55:13,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:13,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:13,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:13,746 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 11:55:13,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:13,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512900983] [2022-11-20 11:55:13,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512900983] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:13,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:13,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:55:13,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30489313] [2022-11-20 11:55:13,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:13,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:55:13,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:13,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:55:13,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:55:13,751 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 194 [2022-11-20 11:55:13,752 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 159 transitions, 358 flow. Second operand has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 0 states have call successors, (0), 0 states 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 11:55:13,752 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:55:13,752 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 194 [2022-11-20 11:55:13,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:55:13,882 INFO L130 PetriNetUnfolder]: 14/245 cut-off events. [2022-11-20 11:55:13,882 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:55:13,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 245 events. 14/245 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 732 event pairs, 0 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 256. Up to 17 conditions per place. [2022-11-20 11:55:13,885 INFO L137 encePairwiseOnDemand]: 189/194 looper letters, 23 selfloop transitions, 4 changer transitions 0/158 dead transitions. [2022-11-20 11:55:13,885 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 158 transitions, 410 flow [2022-11-20 11:55:13,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:55:13,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:55:13,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1000 transitions. [2022-11-20 11:55:13,888 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8591065292096219 [2022-11-20 11:55:13,888 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1000 transitions. [2022-11-20 11:55:13,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1000 transitions. [2022-11-20 11:55:13,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:55:13,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1000 transitions. [2022-11-20 11:55:13,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 166.66666666666666) internal successors, (1000), 6 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states 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 11:55:13,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 194.0) internal successors, (1358), 7 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states 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 11:55:13,894 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 194.0) internal successors, (1358), 7 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states 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 11:55:13,895 INFO L175 Difference]: Start difference. First operand has 164 places, 159 transitions, 358 flow. Second operand 6 states and 1000 transitions. [2022-11-20 11:55:13,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 158 transitions, 410 flow [2022-11-20 11:55:13,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 158 transitions, 406 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:55:13,900 INFO L231 Difference]: Finished difference. Result has 166 places, 158 transitions, 360 flow [2022-11-20 11:55:13,900 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=360, PETRI_PLACES=166, PETRI_TRANSITIONS=158} [2022-11-20 11:55:13,901 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -7 predicate places. [2022-11-20 11:55:13,901 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 158 transitions, 360 flow [2022-11-20 11:55:13,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 0 states have call successors, (0), 0 states 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 11:55:13,902 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:55:13,902 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] [2022-11-20 11:55:13,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:55:13,903 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 11:55:13,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:13,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1514837730, now seen corresponding path program 1 times [2022-11-20 11:55:13,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:13,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820884417] [2022-11-20 11:55:13,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:13,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:13,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:13,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:55:13,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:13,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820884417] [2022-11-20 11:55:13,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820884417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:13,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:13,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:55:13,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025615784] [2022-11-20 11:55:13,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:13,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:55:13,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:13,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:55:13,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:55:13,986 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 194 [2022-11-20 11:55:13,987 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 158 transitions, 360 flow. Second operand has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states 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 11:55:13,987 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:55:13,988 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 194 [2022-11-20 11:55:13,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:55:14,051 INFO L130 PetriNetUnfolder]: 26/273 cut-off events. [2022-11-20 11:55:14,051 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-20 11:55:14,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 273 events. 26/273 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1018 event pairs, 6 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 286. Up to 31 conditions per place. [2022-11-20 11:55:14,054 INFO L137 encePairwiseOnDemand]: 191/194 looper letters, 12 selfloop transitions, 2 changer transitions 0/159 dead transitions. [2022-11-20 11:55:14,054 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 159 transitions, 392 flow [2022-11-20 11:55:14,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:55:14,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:55:14,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 549 transitions. [2022-11-20 11:55:14,056 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9432989690721649 [2022-11-20 11:55:14,057 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 549 transitions. [2022-11-20 11:55:14,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 549 transitions. [2022-11-20 11:55:14,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:55:14,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 549 transitions. [2022-11-20 11:55:14,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 0 states 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 11:55:14,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states 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 11:55:14,062 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states 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 11:55:14,063 INFO L175 Difference]: Start difference. First operand has 166 places, 158 transitions, 360 flow. Second operand 3 states and 549 transitions. [2022-11-20 11:55:14,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 159 transitions, 392 flow [2022-11-20 11:55:14,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 159 transitions, 385 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:55:14,066 INFO L231 Difference]: Finished difference. Result has 163 places, 157 transitions, 355 flow [2022-11-20 11:55:14,067 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=355, PETRI_PLACES=163, PETRI_TRANSITIONS=157} [2022-11-20 11:55:14,068 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -10 predicate places. [2022-11-20 11:55:14,068 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 157 transitions, 355 flow [2022-11-20 11:55:14,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states 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 11:55:14,069 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:55:14,069 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] [2022-11-20 11:55:14,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:55:14,070 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 11:55:14,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:14,070 INFO L85 PathProgramCache]: Analyzing trace with hash 22021240, now seen corresponding path program 1 times [2022-11-20 11:55:14,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:14,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643633986] [2022-11-20 11:55:14,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:14,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:14,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:14,596 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 11:55:14,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:14,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643633986] [2022-11-20 11:55:14,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643633986] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:14,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:14,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:55:14,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948180429] [2022-11-20 11:55:14,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:14,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:55:14,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:14,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:55:14,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:55:14,601 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 194 [2022-11-20 11:55:14,602 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 157 transitions, 355 flow. Second operand has 6 states, 6 states have (on average 165.0) internal successors, (990), 6 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:14,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:55:14,603 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 194 [2022-11-20 11:55:14,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:55:14,717 INFO L130 PetriNetUnfolder]: 14/239 cut-off events. [2022-11-20 11:55:14,717 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:55:14,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 239 events. 14/239 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 698 event pairs, 0 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 248. Up to 14 conditions per place. [2022-11-20 11:55:14,719 INFO L137 encePairwiseOnDemand]: 189/194 looper letters, 22 selfloop transitions, 4 changer transitions 0/156 dead transitions. [2022-11-20 11:55:14,719 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 156 transitions, 405 flow [2022-11-20 11:55:14,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:55:14,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:55:14,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 999 transitions. [2022-11-20 11:55:14,722 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8582474226804123 [2022-11-20 11:55:14,722 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 999 transitions. [2022-11-20 11:55:14,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 999 transitions. [2022-11-20 11:55:14,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:55:14,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 999 transitions. [2022-11-20 11:55:14,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 166.5) internal successors, (999), 6 states have internal predecessors, (999), 0 states have call successors, (0), 0 states 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 11:55:14,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 194.0) internal successors, (1358), 7 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states 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 11:55:14,728 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 194.0) internal successors, (1358), 7 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states 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 11:55:14,729 INFO L175 Difference]: Start difference. First operand has 163 places, 157 transitions, 355 flow. Second operand 6 states and 999 transitions. [2022-11-20 11:55:14,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 156 transitions, 405 flow [2022-11-20 11:55:14,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 156 transitions, 401 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:55:14,735 INFO L231 Difference]: Finished difference. Result has 165 places, 156 transitions, 357 flow [2022-11-20 11:55:14,735 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=357, PETRI_PLACES=165, PETRI_TRANSITIONS=156} [2022-11-20 11:55:14,736 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -8 predicate places. [2022-11-20 11:55:14,736 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 156 transitions, 357 flow [2022-11-20 11:55:14,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.0) internal successors, (990), 6 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:14,737 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:55:14,737 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] [2022-11-20 11:55:14,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:55:14,737 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 11:55:14,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:14,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1553335144, now seen corresponding path program 1 times [2022-11-20 11:55:14,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:14,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551906350] [2022-11-20 11:55:14,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:14,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:15,301 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 11:55:15,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:15,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551906350] [2022-11-20 11:55:15,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551906350] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:15,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:15,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:55:15,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364920923] [2022-11-20 11:55:15,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:15,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:55:15,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:15,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:55:15,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:55:15,305 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 194 [2022-11-20 11:55:15,306 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 156 transitions, 357 flow. Second operand has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 0 states have call successors, (0), 0 states 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 11:55:15,306 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:55:15,307 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 194 [2022-11-20 11:55:15,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:55:15,400 INFO L130 PetriNetUnfolder]: 14/238 cut-off events. [2022-11-20 11:55:15,400 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:55:15,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 238 events. 14/238 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 697 event pairs, 0 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 251. Up to 20 conditions per place. [2022-11-20 11:55:15,402 INFO L137 encePairwiseOnDemand]: 189/194 looper letters, 21 selfloop transitions, 4 changer transitions 0/155 dead transitions. [2022-11-20 11:55:15,403 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 155 transitions, 405 flow [2022-11-20 11:55:15,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:55:15,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:55:15,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 998 transitions. [2022-11-20 11:55:15,406 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8573883161512027 [2022-11-20 11:55:15,406 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 998 transitions. [2022-11-20 11:55:15,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 998 transitions. [2022-11-20 11:55:15,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:55:15,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 998 transitions. [2022-11-20 11:55:15,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 166.33333333333334) internal successors, (998), 6 states have internal predecessors, (998), 0 states have call successors, (0), 0 states 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 11:55:15,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 194.0) internal successors, (1358), 7 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states 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 11:55:15,413 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 194.0) internal successors, (1358), 7 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states 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 11:55:15,413 INFO L175 Difference]: Start difference. First operand has 165 places, 156 transitions, 357 flow. Second operand 6 states and 998 transitions. [2022-11-20 11:55:15,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 155 transitions, 405 flow [2022-11-20 11:55:15,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 155 transitions, 398 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:55:15,417 INFO L231 Difference]: Finished difference. Result has 165 places, 155 transitions, 356 flow [2022-11-20 11:55:15,418 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=356, PETRI_PLACES=165, PETRI_TRANSITIONS=155} [2022-11-20 11:55:15,419 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -8 predicate places. [2022-11-20 11:55:15,419 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 155 transitions, 356 flow [2022-11-20 11:55:15,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 0 states have call successors, (0), 0 states 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 11:55:15,420 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:55:15,420 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] [2022-11-20 11:55:15,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:55:15,421 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 11:55:15,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:15,421 INFO L85 PathProgramCache]: Analyzing trace with hash -2102364842, now seen corresponding path program 1 times [2022-11-20 11:55:15,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:15,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168087736] [2022-11-20 11:55:15,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:15,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:15,493 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 11:55:15,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:15,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168087736] [2022-11-20 11:55:15,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168087736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:15,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:15,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:55:15,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061339723] [2022-11-20 11:55:15,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:15,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:55:15,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:15,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:55:15,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:55:15,501 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 194 [2022-11-20 11:55:15,501 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 155 transitions, 356 flow. Second operand has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 0 states have call successors, (0), 0 states 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 11:55:15,502 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:55:15,502 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 194 [2022-11-20 11:55:15,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:55:15,569 INFO L130 PetriNetUnfolder]: 22/319 cut-off events. [2022-11-20 11:55:15,569 INFO L131 PetriNetUnfolder]: For 3/4 co-relation queries the response was YES. [2022-11-20 11:55:15,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 391 conditions, 319 events. 22/319 cut-off events. For 3/4 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1238 event pairs, 4 based on Foata normal form. 0/302 useless extension candidates. Maximal degree in co-relation 358. Up to 17 conditions per place. [2022-11-20 11:55:15,572 INFO L137 encePairwiseOnDemand]: 192/194 looper letters, 9 selfloop transitions, 1 changer transitions 0/154 dead transitions. [2022-11-20 11:55:15,572 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 154 transitions, 374 flow [2022-11-20 11:55:15,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:55:15,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:55:15,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 551 transitions. [2022-11-20 11:55:15,574 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9467353951890034 [2022-11-20 11:55:15,574 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 551 transitions. [2022-11-20 11:55:15,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 551 transitions. [2022-11-20 11:55:15,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:55:15,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 551 transitions. [2022-11-20 11:55:15,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 183.66666666666666) internal successors, (551), 3 states have internal predecessors, (551), 0 states have call successors, (0), 0 states 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 11:55:15,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states 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 11:55:15,579 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states 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 11:55:15,579 INFO L175 Difference]: Start difference. First operand has 165 places, 155 transitions, 356 flow. Second operand 3 states and 551 transitions. [2022-11-20 11:55:15,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 154 transitions, 374 flow [2022-11-20 11:55:15,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 154 transitions, 367 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:55:15,582 INFO L231 Difference]: Finished difference. Result has 162 places, 154 transitions, 349 flow [2022-11-20 11:55:15,583 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=349, PETRI_PLACES=162, PETRI_TRANSITIONS=154} [2022-11-20 11:55:15,584 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -11 predicate places. [2022-11-20 11:55:15,585 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 154 transitions, 349 flow [2022-11-20 11:55:15,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 0 states have call successors, (0), 0 states 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 11:55:15,585 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:55:15,585 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:15,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:55:15,586 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 11:55:15,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:15,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1619396123, now seen corresponding path program 1 times [2022-11-20 11:55:15,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:15,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767987758] [2022-11-20 11:55:15,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:15,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:15,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:15,791 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 11:55:15,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:15,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767987758] [2022-11-20 11:55:15,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767987758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:15,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:15,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:55:15,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537796896] [2022-11-20 11:55:15,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:15,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:55:15,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:15,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:55:15,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:55:15,796 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 194 [2022-11-20 11:55:15,797 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 154 transitions, 349 flow. Second operand has 5 states, 5 states have (on average 176.6) internal successors, (883), 5 states have internal predecessors, (883), 0 states have call successors, (0), 0 states 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 11:55:15,797 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:55:15,797 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 194 [2022-11-20 11:55:15,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:55:15,904 INFO L130 PetriNetUnfolder]: 28/389 cut-off events. [2022-11-20 11:55:15,904 INFO L131 PetriNetUnfolder]: For 6/8 co-relation queries the response was YES. [2022-11-20 11:55:15,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 389 events. 28/389 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1746 event pairs, 4 based on Foata normal form. 1/374 useless extension candidates. Maximal degree in co-relation 460. Up to 18 conditions per place. [2022-11-20 11:55:15,907 INFO L137 encePairwiseOnDemand]: 187/194 looper letters, 24 selfloop transitions, 6 changer transitions 0/167 dead transitions. [2022-11-20 11:55:15,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 167 transitions, 442 flow [2022-11-20 11:55:15,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:55:15,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:55:15,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1075 transitions. [2022-11-20 11:55:15,910 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9235395189003437 [2022-11-20 11:55:15,910 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1075 transitions. [2022-11-20 11:55:15,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1075 transitions. [2022-11-20 11:55:15,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:55:15,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1075 transitions. [2022-11-20 11:55:15,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 179.16666666666666) internal successors, (1075), 6 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states 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 11:55:15,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 194.0) internal successors, (1358), 7 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states 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 11:55:15,917 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 194.0) internal successors, (1358), 7 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states 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 11:55:15,917 INFO L175 Difference]: Start difference. First operand has 162 places, 154 transitions, 349 flow. Second operand 6 states and 1075 transitions. [2022-11-20 11:55:15,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 167 transitions, 442 flow [2022-11-20 11:55:15,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 167 transitions, 441 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:55:15,921 INFO L231 Difference]: Finished difference. Result has 170 places, 158 transitions, 389 flow [2022-11-20 11:55:15,921 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=389, PETRI_PLACES=170, PETRI_TRANSITIONS=158} [2022-11-20 11:55:15,922 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -3 predicate places. [2022-11-20 11:55:15,922 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 158 transitions, 389 flow [2022-11-20 11:55:15,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 176.6) internal successors, (883), 5 states have internal predecessors, (883), 0 states have call successors, (0), 0 states 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 11:55:15,923 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:55:15,923 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] [2022-11-20 11:55:15,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 11:55:15,923 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 11:55:15,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:15,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1320108318, now seen corresponding path program 1 times [2022-11-20 11:55:15,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:15,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748485240] [2022-11-20 11:55:15,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:15,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:15,993 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 11:55:15,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:15,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748485240] [2022-11-20 11:55:15,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748485240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:15,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:15,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:55:15,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072284187] [2022-11-20 11:55:15,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:15,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:55:15,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:15,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:55:15,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:55:15,996 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 194 [2022-11-20 11:55:15,996 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 158 transitions, 389 flow. Second operand has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 0 states have call successors, (0), 0 states 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 11:55:15,996 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:55:15,996 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 194 [2022-11-20 11:55:15,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:55:16,057 INFO L130 PetriNetUnfolder]: 24/320 cut-off events. [2022-11-20 11:55:16,057 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2022-11-20 11:55:16,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 320 events. 24/320 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1247 event pairs, 12 based on Foata normal form. 3/305 useless extension candidates. Maximal degree in co-relation 400. Up to 44 conditions per place. [2022-11-20 11:55:16,060 INFO L137 encePairwiseOnDemand]: 192/194 looper letters, 8 selfloop transitions, 0 changer transitions 8/157 dead transitions. [2022-11-20 11:55:16,060 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 157 transitions, 405 flow [2022-11-20 11:55:16,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:55:16,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:55:16,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 550 transitions. [2022-11-20 11:55:16,062 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9450171821305842 [2022-11-20 11:55:16,062 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 550 transitions. [2022-11-20 11:55:16,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 550 transitions. [2022-11-20 11:55:16,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:55:16,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 550 transitions. [2022-11-20 11:55:16,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 0 states have call successors, (0), 0 states 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 11:55:16,065 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states 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 11:55:16,066 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states 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 11:55:16,066 INFO L175 Difference]: Start difference. First operand has 170 places, 158 transitions, 389 flow. Second operand 3 states and 550 transitions. [2022-11-20 11:55:16,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 157 transitions, 405 flow [2022-11-20 11:55:16,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 157 transitions, 405 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:55:16,070 INFO L231 Difference]: Finished difference. Result has 171 places, 149 transitions, 362 flow [2022-11-20 11:55:16,070 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=362, PETRI_PLACES=171, PETRI_TRANSITIONS=149} [2022-11-20 11:55:16,072 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -2 predicate places. [2022-11-20 11:55:16,072 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 149 transitions, 362 flow [2022-11-20 11:55:16,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 0 states have call successors, (0), 0 states 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 11:55:16,072 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:55:16,073 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] [2022-11-20 11:55:16,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 11:55:16,073 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 11:55:16,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:16,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1930619371, now seen corresponding path program 1 times [2022-11-20 11:55:16,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:16,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148027543] [2022-11-20 11:55:16,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:16,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:16,166 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 11:55:16,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:16,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148027543] [2022-11-20 11:55:16,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148027543] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:16,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:16,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:55:16,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719619909] [2022-11-20 11:55:16,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:16,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:55:16,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:16,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:55:16,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:55:16,170 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 194 [2022-11-20 11:55:16,170 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 149 transitions, 362 flow. Second operand has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 0 states have call successors, (0), 0 states 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 11:55:16,171 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:55:16,171 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 194 [2022-11-20 11:55:16,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:55:16,232 INFO L130 PetriNetUnfolder]: 24/374 cut-off events. [2022-11-20 11:55:16,232 INFO L131 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-11-20 11:55:16,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 374 events. 24/374 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1576 event pairs, 8 based on Foata normal form. 1/356 useless extension candidates. Maximal degree in co-relation 468. Up to 30 conditions per place. [2022-11-20 11:55:16,235 INFO L137 encePairwiseOnDemand]: 192/194 looper letters, 0 selfloop transitions, 0 changer transitions 148/148 dead transitions. [2022-11-20 11:55:16,235 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 148 transitions, 378 flow [2022-11-20 11:55:16,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:55:16,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:55:16,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 550 transitions. [2022-11-20 11:55:16,237 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9450171821305842 [2022-11-20 11:55:16,237 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 550 transitions. [2022-11-20 11:55:16,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 550 transitions. [2022-11-20 11:55:16,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:55:16,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 550 transitions. [2022-11-20 11:55:16,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 0 states have call successors, (0), 0 states 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 11:55:16,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states 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 11:55:16,241 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states 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 11:55:16,241 INFO L175 Difference]: Start difference. First operand has 171 places, 149 transitions, 362 flow. Second operand 3 states and 550 transitions. [2022-11-20 11:55:16,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 148 transitions, 378 flow [2022-11-20 11:55:16,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 148 transitions, 372 flow, removed 1 selfloop flow, removed 3 redundant places. [2022-11-20 11:55:16,244 INFO L231 Difference]: Finished difference. Result has 161 places, 0 transitions, 0 flow [2022-11-20 11:55:16,244 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=161, PETRI_TRANSITIONS=0} [2022-11-20 11:55:16,245 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -12 predicate places. [2022-11-20 11:55:16,245 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 0 transitions, 0 flow [2022-11-20 11:55:16,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 0 states have call successors, (0), 0 states 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 11:55:16,248 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (35 of 36 remaining) [2022-11-20 11:55:16,249 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2022-11-20 11:55:16,249 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2022-11-20 11:55:16,249 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2022-11-20 11:55:16,249 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2022-11-20 11:55:16,249 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2022-11-20 11:55:16,250 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2022-11-20 11:55:16,250 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2022-11-20 11:55:16,250 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2022-11-20 11:55:16,250 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2022-11-20 11:55:16,250 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2022-11-20 11:55:16,251 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2022-11-20 11:55:16,251 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2022-11-20 11:55:16,251 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2022-11-20 11:55:16,251 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2022-11-20 11:55:16,251 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2022-11-20 11:55:16,252 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2022-11-20 11:55:16,252 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2022-11-20 11:55:16,252 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2022-11-20 11:55:16,252 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2022-11-20 11:55:16,252 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2022-11-20 11:55:16,253 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 36 remaining) [2022-11-20 11:55:16,253 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 36 remaining) [2022-11-20 11:55:16,253 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 36 remaining) [2022-11-20 11:55:16,253 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2022-11-20 11:55:16,253 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2022-11-20 11:55:16,254 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2022-11-20 11:55:16,254 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2022-11-20 11:55:16,254 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2022-11-20 11:55:16,254 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2022-11-20 11:55:16,254 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2022-11-20 11:55:16,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2022-11-20 11:55:16,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2022-11-20 11:55:16,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2022-11-20 11:55:16,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2022-11-20 11:55:16,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2022-11-20 11:55:16,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 11:55:16,256 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:16,261 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 11:55:16,262 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:55:16,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:55:16 BasicIcfg [2022-11-20 11:55:16,266 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:55:16,267 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:55:16,267 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:55:16,267 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:55:16,268 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:55:10" (3/4) ... [2022-11-20 11:55:16,270 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 11:55:16,276 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-20 11:55:16,276 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-20 11:55:16,277 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-20 11:55:16,281 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-20 11:55:16,281 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 11:55:16,282 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 11:55:16,282 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:55:16,316 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de9f248-ab05-4c6b-aa3a-4b059ede4069/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:55:16,316 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:55:16,317 INFO L158 Benchmark]: Toolchain (without parser) took 6601.06ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 139.4MB in the beginning and 146.7MB in the end (delta: -7.4MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2022-11-20 11:55:16,317 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 138.4MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:55:16,317 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.71ms. Allocated memory is still 178.3MB. Free memory was 139.4MB in the beginning and 128.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 11:55:16,318 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.00ms. Allocated memory is still 178.3MB. Free memory was 127.7MB in the beginning and 126.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:55:16,318 INFO L158 Benchmark]: Boogie Preprocessor took 29.78ms. Allocated memory is still 178.3MB. Free memory was 126.1MB in the beginning and 124.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:55:16,318 INFO L158 Benchmark]: RCFGBuilder took 653.75ms. Allocated memory is still 178.3MB. Free memory was 124.2MB in the beginning and 105.8MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 11:55:16,319 INFO L158 Benchmark]: TraceAbstraction took 5548.58ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 105.3MB in the beginning and 150.9MB in the end (delta: -45.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:55:16,319 INFO L158 Benchmark]: Witness Printer took 49.32ms. Allocated memory is still 213.9MB. Free memory was 150.9MB in the beginning and 146.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 11:55:16,321 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 138.4MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 266.71ms. Allocated memory is still 178.3MB. Free memory was 139.4MB in the beginning and 128.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.00ms. Allocated memory is still 178.3MB. Free memory was 127.7MB in the beginning and 126.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.78ms. Allocated memory is still 178.3MB. Free memory was 126.1MB in the beginning and 124.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 653.75ms. Allocated memory is still 178.3MB. Free memory was 124.2MB in the beginning and 105.8MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5548.58ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 105.3MB in the beginning and 150.9MB in the end (delta: -45.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 49.32ms. Allocated memory is still 213.9MB. Free memory was 150.9MB in the beginning and 146.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 258 locations, 36 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.3s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 79 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 79 mSDsluCounter, 135 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 419 IncrementalHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 123 mSDtfsCounter, 419 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=389occurred in iteration=14, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1186 NumberOfCodeBlocks, 1186 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1170 ConstructedInterpolants, 0 QuantifiedInterpolants, 1592 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 21 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 11:55:16,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de9f248-ab05-4c6b-aa3a-4b059ede4069/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE