./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8648680b-5531-44b1-a8de-d78fa3bfb051/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8648680b-5531-44b1-a8de-d78fa3bfb051/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8648680b-5531-44b1-a8de-d78fa3bfb051/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8648680b-5531-44b1-a8de-d78fa3bfb051/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8648680b-5531-44b1-a8de-d78fa3bfb051/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8648680b-5531-44b1-a8de-d78fa3bfb051/bin/uautomizer-tPACEb0tL8 --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 084d7ddce3c53222c6533ccae99969e854061e3b422eaf94457157515e3bd009 --- 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-e04fb08 [2022-11-16 11:10:47,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:10:47,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:10:47,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:10:47,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:10:47,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:10:47,189 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:10:47,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:10:47,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:10:47,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:10:47,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:10:47,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:10:47,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:10:47,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:10:47,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:10:47,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:10:47,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:10:47,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:10:47,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:10:47,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:10:47,218 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:10:47,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:10:47,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:10:47,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:10:47,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:10:47,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:10:47,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:10:47,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:10:47,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:10:47,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:10:47,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:10:47,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:10:47,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:10:47,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:10:47,243 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:10:47,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:10:47,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:10:47,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:10:47,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:10:47,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:10:47,250 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:10:47,252 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8648680b-5531-44b1-a8de-d78fa3bfb051/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:10:47,305 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:10:47,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:10:47,307 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:10:47,307 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:10:47,309 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:10:47,309 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:10:47,310 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:10:47,311 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:10:47,311 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:10:47,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:10:47,312 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:10:47,313 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:10:47,313 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:10:47,314 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:10:47,314 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:10:47,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:10:47,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:10:47,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:10:47,316 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:10:47,317 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:10:47,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:10:47,318 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:10:47,318 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:10:47,319 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:10:47,319 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:10:47,319 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:10:47,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:10:47,320 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:10:47,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:10:47,321 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:10:47,321 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:10:47,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:10:47,322 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:10:47,322 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:10:47,323 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:10:47,323 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_8648680b-5531-44b1-a8de-d78fa3bfb051/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8648680b-5531-44b1-a8de-d78fa3bfb051/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 084d7ddce3c53222c6533ccae99969e854061e3b422eaf94457157515e3bd009 [2022-11-16 11:10:47,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:10:47,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:10:47,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:10:47,870 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:10:47,872 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:10:47,874 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8648680b-5531-44b1-a8de-d78fa3bfb051/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2022-11-16 11:10:47,983 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8648680b-5531-44b1-a8de-d78fa3bfb051/bin/uautomizer-tPACEb0tL8/data/37c71499b/57a1ed642e5a45f7ba632209c182024c/FLAG92bf36dd0 [2022-11-16 11:10:48,769 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:10:48,770 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8648680b-5531-44b1-a8de-d78fa3bfb051/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2022-11-16 11:10:48,781 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8648680b-5531-44b1-a8de-d78fa3bfb051/bin/uautomizer-tPACEb0tL8/data/37c71499b/57a1ed642e5a45f7ba632209c182024c/FLAG92bf36dd0 [2022-11-16 11:10:49,105 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8648680b-5531-44b1-a8de-d78fa3bfb051/bin/uautomizer-tPACEb0tL8/data/37c71499b/57a1ed642e5a45f7ba632209c182024c [2022-11-16 11:10:49,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:10:49,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:10:49,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:10:49,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:10:49,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:10:49,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:10:49" (1/1) ... [2022-11-16 11:10:49,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47396a55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:49, skipping insertion in model container [2022-11-16 11:10:49,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:10:49" (1/1) ... [2022-11-16 11:10:49,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:10:49,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:10:49,754 WARN L229 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_8648680b-5531-44b1-a8de-d78fa3bfb051/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c[3963,3976] [2022-11-16 11:10:49,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:10:49,789 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:10:49,862 WARN L229 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_8648680b-5531-44b1-a8de-d78fa3bfb051/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c[3963,3976] [2022-11-16 11:10:49,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:10:49,888 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:10:49,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:49 WrapperNode [2022-11-16 11:10:49,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:10:49,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:10:49,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:10:49,892 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:10:49,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:49" (1/1) ... [2022-11-16 11:10:49,940 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:49" (1/1) ... [2022-11-16 11:10:50,027 INFO L138 Inliner]: procedures = 24, calls = 85, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 491 [2022-11-16 11:10:50,036 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:10:50,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:10:50,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:10:50,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:10:50,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:49" (1/1) ... [2022-11-16 11:10:50,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:49" (1/1) ... [2022-11-16 11:10:50,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:49" (1/1) ... [2022-11-16 11:10:50,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:49" (1/1) ... [2022-11-16 11:10:50,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:49" (1/1) ... [2022-11-16 11:10:50,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:49" (1/1) ... [2022-11-16 11:10:50,125 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:49" (1/1) ... [2022-11-16 11:10:50,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:49" (1/1) ... [2022-11-16 11:10:50,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:10:50,140 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:10:50,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:10:50,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:10:50,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:49" (1/1) ... [2022-11-16 11:10:50,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:10:50,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8648680b-5531-44b1-a8de-d78fa3bfb051/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:10:50,214 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8648680b-5531-44b1-a8de-d78fa3bfb051/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:10:50,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8648680b-5531-44b1-a8de-d78fa3bfb051/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:10:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:10:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 11:10:50,291 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 11:10:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 11:10:50,291 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 11:10:50,294 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 11:10:50,294 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 11:10:50,295 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-16 11:10:50,296 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-16 11:10:50,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:10:50,296 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-16 11:10:50,297 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-16 11:10:50,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:10:50,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:10:50,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:10:50,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:10:50,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:10:50,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:10:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:10:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:10:50,302 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:10:50,565 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:10:50,582 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:10:51,861 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:10:52,532 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:10:52,533 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:10:52,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:10:52 BoogieIcfgContainer [2022-11-16 11:10:52,538 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:10:52,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:10:52,543 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:10:52,550 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:10:52,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:10:49" (1/3) ... [2022-11-16 11:10:52,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71935605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:10:52, skipping insertion in model container [2022-11-16 11:10:52,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:49" (2/3) ... [2022-11-16 11:10:52,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71935605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:10:52, skipping insertion in model container [2022-11-16 11:10:52,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:10:52" (3/3) ... [2022-11-16 11:10:52,557 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2022-11-16 11:10:52,572 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:10:52,590 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:10:52,590 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 75 error locations. [2022-11-16 11:10:52,591 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:10:52,831 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-11-16 11:10:52,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 340 places, 329 transitions, 698 flow [2022-11-16 11:10:53,232 INFO L130 PetriNetUnfolder]: 5/324 cut-off events. [2022-11-16 11:10:53,233 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-16 11:10:53,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 324 events. 5/324 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 350 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 241. Up to 2 conditions per place. [2022-11-16 11:10:53,246 INFO L82 GeneralOperation]: Start removeDead. Operand has 340 places, 329 transitions, 698 flow [2022-11-16 11:10:53,266 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 312 places, 300 transitions, 630 flow [2022-11-16 11:10:53,281 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:10:53,297 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;@550d9eaa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:10:53,297 INFO L358 AbstractCegarLoop]: Starting to check reachability of 134 error locations. [2022-11-16 11:10:53,310 INFO L130 PetriNetUnfolder]: 0/30 cut-off events. [2022-11-16 11:10:53,310 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:10:53,311 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:10:53,314 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] [2022-11-16 11:10:53,315 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-11-16 11:10:53,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:10:53,325 INFO L85 PathProgramCache]: Analyzing trace with hash -500514201, now seen corresponding path program 1 times [2022-11-16 11:10:53,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:10:53,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703599705] [2022-11-16 11:10:53,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:10:53,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:10:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:53,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:10:53,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:10:53,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703599705] [2022-11-16 11:10:53,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703599705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:10:53,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:10:53,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:10:53,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113418489] [2022-11-16 11:10:53,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:10:53,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:10:53,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:10:53,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:10:53,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:10:53,976 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 329 [2022-11-16 11:10:53,988 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 300 transitions, 630 flow. Second operand has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:10:53,989 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:10:53,990 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 329 [2022-11-16 11:10:53,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:11:04,244 INFO L130 PetriNetUnfolder]: 16567/24960 cut-off events. [2022-11-16 11:11:04,244 INFO L131 PetriNetUnfolder]: For 3630/4991 co-relation queries the response was YES. [2022-11-16 11:11:04,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49658 conditions, 24960 events. 16567/24960 cut-off events. For 3630/4991 co-relation queries the response was YES. Maximal size of possible extension queue 953. Compared 167346 event pairs, 16564 based on Foata normal form. 1/24675 useless extension candidates. Maximal degree in co-relation 49011. Up to 22035 conditions per place. [2022-11-16 11:11:04,753 INFO L137 encePairwiseOnDemand]: 271/329 looper letters, 34 selfloop transitions, 2 changer transitions 1/244 dead transitions. [2022-11-16 11:11:04,753 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 244 transitions, 590 flow [2022-11-16 11:11:04,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:11:04,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:11:04,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 797 transitions. [2022-11-16 11:11:04,792 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8074974670719351 [2022-11-16 11:11:04,793 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 797 transitions. [2022-11-16 11:11:04,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 797 transitions. [2022-11-16 11:11:04,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:11:04,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 797 transitions. [2022-11-16 11:11:04,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:04,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:04,833 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:04,836 INFO L175 Difference]: Start difference. First operand has 312 places, 300 transitions, 630 flow. Second operand 3 states and 797 transitions. [2022-11-16 11:11:04,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 244 transitions, 590 flow [2022-11-16 11:11:04,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 244 transitions, 570 flow, removed 0 selfloop flow, removed 10 redundant places. [2022-11-16 11:11:04,865 INFO L231 Difference]: Finished difference. Result has 249 places, 243 transitions, 500 flow [2022-11-16 11:11:04,869 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=500, PETRI_PLACES=249, PETRI_TRANSITIONS=243} [2022-11-16 11:11:04,875 INFO L288 CegarLoopForPetriNet]: 312 programPoint places, -63 predicate places. [2022-11-16 11:11:04,876 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 243 transitions, 500 flow [2022-11-16 11:11:04,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:04,877 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:11:04,878 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:11:04,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:11:04,879 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-11-16 11:11:04,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:11:04,881 INFO L85 PathProgramCache]: Analyzing trace with hash 122706630, now seen corresponding path program 1 times [2022-11-16 11:11:04,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:11:04,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875743222] [2022-11-16 11:11:04,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:11:04,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:11:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:05,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:11:05,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:11:05,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875743222] [2022-11-16 11:11:05,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875743222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:11:05,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:11:05,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:11:05,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479661900] [2022-11-16 11:11:05,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:11:05,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:11:05,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:11:05,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:11:05,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:11:05,123 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 329 [2022-11-16 11:11:05,125 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 243 transitions, 500 flow. Second operand has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:05,126 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:11:05,126 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 329 [2022-11-16 11:11:05,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:11:11,011 INFO L130 PetriNetUnfolder]: 16567/24958 cut-off events. [2022-11-16 11:11:11,011 INFO L131 PetriNetUnfolder]: For 781/2142 co-relation queries the response was YES. [2022-11-16 11:11:11,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47936 conditions, 24958 events. 16567/24958 cut-off events. For 781/2142 co-relation queries the response was YES. Maximal size of possible extension queue 953. Compared 166915 event pairs, 16564 based on Foata normal form. 0/24674 useless extension candidates. Maximal degree in co-relation 47897. Up to 22035 conditions per place. [2022-11-16 11:11:11,493 INFO L137 encePairwiseOnDemand]: 326/329 looper letters, 34 selfloop transitions, 2 changer transitions 0/242 dead transitions. [2022-11-16 11:11:11,493 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 242 transitions, 570 flow [2022-11-16 11:11:11,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:11:11,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:11:11,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 742 transitions. [2022-11-16 11:11:11,497 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.75177304964539 [2022-11-16 11:11:11,498 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 742 transitions. [2022-11-16 11:11:11,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 742 transitions. [2022-11-16 11:11:11,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:11:11,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 742 transitions. [2022-11-16 11:11:11,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:11,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:11,512 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:11,512 INFO L175 Difference]: Start difference. First operand has 249 places, 243 transitions, 500 flow. Second operand 3 states and 742 transitions. [2022-11-16 11:11:11,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 242 transitions, 570 flow [2022-11-16 11:11:11,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 242 transitions, 566 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:11:11,526 INFO L231 Difference]: Finished difference. Result has 247 places, 242 transitions, 498 flow [2022-11-16 11:11:11,527 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=247, PETRI_TRANSITIONS=242} [2022-11-16 11:11:11,528 INFO L288 CegarLoopForPetriNet]: 312 programPoint places, -65 predicate places. [2022-11-16 11:11:11,529 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 242 transitions, 498 flow [2022-11-16 11:11:11,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:11,530 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:11:11,530 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] [2022-11-16 11:11:11,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:11:11,531 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-11-16 11:11:11,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:11:11,534 INFO L85 PathProgramCache]: Analyzing trace with hash 160608242, now seen corresponding path program 1 times [2022-11-16 11:11:11,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:11:11,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061173412] [2022-11-16 11:11:11,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:11:11,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:11:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:11,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:11:11,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:11:11,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061173412] [2022-11-16 11:11:11,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061173412] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:11:11,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:11:11,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:11:11,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405228318] [2022-11-16 11:11:11,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:11:11,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:11:11,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:11:11,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:11:11,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:11:11,628 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 329 [2022-11-16 11:11:11,629 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 242 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:11,630 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:11:11,630 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 329 [2022-11-16 11:11:11,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:11:16,885 INFO L130 PetriNetUnfolder]: 16567/24957 cut-off events. [2022-11-16 11:11:16,886 INFO L131 PetriNetUnfolder]: For 781/2142 co-relation queries the response was YES. [2022-11-16 11:11:16,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47935 conditions, 24957 events. 16567/24957 cut-off events. For 781/2142 co-relation queries the response was YES. Maximal size of possible extension queue 953. Compared 167174 event pairs, 16564 based on Foata normal form. 0/24674 useless extension candidates. Maximal degree in co-relation 47889. Up to 22035 conditions per place. [2022-11-16 11:11:17,126 INFO L137 encePairwiseOnDemand]: 326/329 looper letters, 34 selfloop transitions, 2 changer transitions 0/241 dead transitions. [2022-11-16 11:11:17,126 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 241 transitions, 568 flow [2022-11-16 11:11:17,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:11:17,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:11:17,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 742 transitions. [2022-11-16 11:11:17,130 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.75177304964539 [2022-11-16 11:11:17,131 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 742 transitions. [2022-11-16 11:11:17,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 742 transitions. [2022-11-16 11:11:17,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:11:17,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 742 transitions. [2022-11-16 11:11:17,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:17,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:17,140 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:17,141 INFO L175 Difference]: Start difference. First operand has 247 places, 242 transitions, 498 flow. Second operand 3 states and 742 transitions. [2022-11-16 11:11:17,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 241 transitions, 568 flow [2022-11-16 11:11:17,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 241 transitions, 564 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:11:17,150 INFO L231 Difference]: Finished difference. Result has 246 places, 241 transitions, 496 flow [2022-11-16 11:11:17,151 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=496, PETRI_PLACES=246, PETRI_TRANSITIONS=241} [2022-11-16 11:11:17,152 INFO L288 CegarLoopForPetriNet]: 312 programPoint places, -66 predicate places. [2022-11-16 11:11:17,153 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 241 transitions, 496 flow [2022-11-16 11:11:17,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:17,154 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:11:17,155 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] [2022-11-16 11:11:17,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:11:17,155 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-11-16 11:11:17,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:11:17,157 INFO L85 PathProgramCache]: Analyzing trace with hash -2051239909, now seen corresponding path program 1 times [2022-11-16 11:11:17,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:11:17,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855807842] [2022-11-16 11:11:17,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:11:17,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:11:17,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:17,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:11:17,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:11:17,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855807842] [2022-11-16 11:11:17,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855807842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:11:17,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:11:17,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:11:17,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076666001] [2022-11-16 11:11:17,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:11:17,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:11:17,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:11:17,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:11:17,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:11:17,262 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 329 [2022-11-16 11:11:17,264 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 241 transitions, 496 flow. Second operand has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:17,265 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:11:17,265 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 329 [2022-11-16 11:11:17,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:11:22,321 INFO L130 PetriNetUnfolder]: 16567/24956 cut-off events. [2022-11-16 11:11:22,325 INFO L131 PetriNetUnfolder]: For 781/2142 co-relation queries the response was YES. [2022-11-16 11:11:22,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47934 conditions, 24956 events. 16567/24956 cut-off events. For 781/2142 co-relation queries the response was YES. Maximal size of possible extension queue 953. Compared 166875 event pairs, 16564 based on Foata normal form. 0/24674 useless extension candidates. Maximal degree in co-relation 47881. Up to 22035 conditions per place. [2022-11-16 11:11:22,584 INFO L137 encePairwiseOnDemand]: 326/329 looper letters, 34 selfloop transitions, 2 changer transitions 0/240 dead transitions. [2022-11-16 11:11:22,586 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 240 transitions, 566 flow [2022-11-16 11:11:22,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:11:22,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:11:22,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 742 transitions. [2022-11-16 11:11:22,597 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.75177304964539 [2022-11-16 11:11:22,597 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 742 transitions. [2022-11-16 11:11:22,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 742 transitions. [2022-11-16 11:11:22,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:11:22,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 742 transitions. [2022-11-16 11:11:22,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:22,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:22,610 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:22,610 INFO L175 Difference]: Start difference. First operand has 246 places, 241 transitions, 496 flow. Second operand 3 states and 742 transitions. [2022-11-16 11:11:22,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 240 transitions, 566 flow [2022-11-16 11:11:22,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 240 transitions, 562 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:11:22,625 INFO L231 Difference]: Finished difference. Result has 245 places, 240 transitions, 494 flow [2022-11-16 11:11:22,626 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=494, PETRI_PLACES=245, PETRI_TRANSITIONS=240} [2022-11-16 11:11:22,629 INFO L288 CegarLoopForPetriNet]: 312 programPoint places, -67 predicate places. [2022-11-16 11:11:22,629 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 240 transitions, 494 flow [2022-11-16 11:11:22,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:22,630 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:11:22,631 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] [2022-11-16 11:11:22,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:11:22,631 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-11-16 11:11:22,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:11:22,632 INFO L85 PathProgramCache]: Analyzing trace with hash 392881224, now seen corresponding path program 1 times [2022-11-16 11:11:22,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:11:22,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656529691] [2022-11-16 11:11:22,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:11:22,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:11:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:22,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:11:22,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:11:22,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656529691] [2022-11-16 11:11:22,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656529691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:11:22,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:11:22,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:11:22,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321478894] [2022-11-16 11:11:22,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:11:22,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:11:22,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:11:22,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:11:22,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:11:22,783 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 329 [2022-11-16 11:11:22,784 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 240 transitions, 494 flow. Second operand has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:22,785 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:11:22,785 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 329 [2022-11-16 11:11:22,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:11:27,959 INFO L130 PetriNetUnfolder]: 16567/24955 cut-off events. [2022-11-16 11:11:27,959 INFO L131 PetriNetUnfolder]: For 781/2142 co-relation queries the response was YES. [2022-11-16 11:11:28,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47933 conditions, 24955 events. 16567/24955 cut-off events. For 781/2142 co-relation queries the response was YES. Maximal size of possible extension queue 953. Compared 167015 event pairs, 16564 based on Foata normal form. 0/24674 useless extension candidates. Maximal degree in co-relation 47873. Up to 22035 conditions per place. [2022-11-16 11:11:28,122 INFO L137 encePairwiseOnDemand]: 326/329 looper letters, 34 selfloop transitions, 2 changer transitions 0/239 dead transitions. [2022-11-16 11:11:28,123 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 239 transitions, 564 flow [2022-11-16 11:11:28,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:11:28,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:11:28,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 742 transitions. [2022-11-16 11:11:28,126 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.75177304964539 [2022-11-16 11:11:28,126 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 742 transitions. [2022-11-16 11:11:28,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 742 transitions. [2022-11-16 11:11:28,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:11:28,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 742 transitions. [2022-11-16 11:11:28,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:28,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:28,135 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:28,135 INFO L175 Difference]: Start difference. First operand has 245 places, 240 transitions, 494 flow. Second operand 3 states and 742 transitions. [2022-11-16 11:11:28,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 239 transitions, 564 flow [2022-11-16 11:11:28,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 239 transitions, 560 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:11:28,142 INFO L231 Difference]: Finished difference. Result has 244 places, 239 transitions, 492 flow [2022-11-16 11:11:28,143 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=492, PETRI_PLACES=244, PETRI_TRANSITIONS=239} [2022-11-16 11:11:28,144 INFO L288 CegarLoopForPetriNet]: 312 programPoint places, -68 predicate places. [2022-11-16 11:11:28,144 INFO L495 AbstractCegarLoop]: Abstraction has has 244 places, 239 transitions, 492 flow [2022-11-16 11:11:28,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:28,145 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:11:28,146 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:11:28,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:11:28,146 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-11-16 11:11:28,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:11:28,147 INFO L85 PathProgramCache]: Analyzing trace with hash 562216539, now seen corresponding path program 1 times [2022-11-16 11:11:28,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:11:28,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180344387] [2022-11-16 11:11:28,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:11:28,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:11:28,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:28,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:11:28,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:11:28,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180344387] [2022-11-16 11:11:28,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180344387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:11:28,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:11:28,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:11:28,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937802279] [2022-11-16 11:11:28,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:11:28,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:11:28,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:11:28,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:11:28,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:11:28,214 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 329 [2022-11-16 11:11:28,216 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 239 transitions, 492 flow. Second operand has 3 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:28,216 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:11:28,216 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 329 [2022-11-16 11:11:28,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:11:33,172 INFO L130 PetriNetUnfolder]: 16567/24954 cut-off events. [2022-11-16 11:11:33,172 INFO L131 PetriNetUnfolder]: For 781/2142 co-relation queries the response was YES. [2022-11-16 11:11:33,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47941 conditions, 24954 events. 16567/24954 cut-off events. For 781/2142 co-relation queries the response was YES. Maximal size of possible extension queue 953. Compared 166981 event pairs, 16564 based on Foata normal form. 0/24674 useless extension candidates. Maximal degree in co-relation 47874. Up to 22044 conditions per place. [2022-11-16 11:11:33,327 INFO L137 encePairwiseOnDemand]: 326/329 looper letters, 43 selfloop transitions, 2 changer transitions 0/238 dead transitions. [2022-11-16 11:11:33,327 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 238 transitions, 580 flow [2022-11-16 11:11:33,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:11:33,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:11:33,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 724 transitions. [2022-11-16 11:11:33,331 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7335359675785208 [2022-11-16 11:11:33,331 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 724 transitions. [2022-11-16 11:11:33,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 724 transitions. [2022-11-16 11:11:33,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:11:33,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 724 transitions. [2022-11-16 11:11:33,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:33,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:33,340 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:33,340 INFO L175 Difference]: Start difference. First operand has 244 places, 239 transitions, 492 flow. Second operand 3 states and 724 transitions. [2022-11-16 11:11:33,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 238 transitions, 580 flow [2022-11-16 11:11:33,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 238 transitions, 576 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:11:33,347 INFO L231 Difference]: Finished difference. Result has 243 places, 238 transitions, 490 flow [2022-11-16 11:11:33,348 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=490, PETRI_PLACES=243, PETRI_TRANSITIONS=238} [2022-11-16 11:11:33,349 INFO L288 CegarLoopForPetriNet]: 312 programPoint places, -69 predicate places. [2022-11-16 11:11:33,349 INFO L495 AbstractCegarLoop]: Abstraction has has 243 places, 238 transitions, 490 flow [2022-11-16 11:11:33,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:33,351 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:11:33,351 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:11:33,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:11:33,352 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-11-16 11:11:33,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:11:33,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1880012047, now seen corresponding path program 1 times [2022-11-16 11:11:33,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:11:33,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416612603] [2022-11-16 11:11:33,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:11:33,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:11:33,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:33,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:11:33,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:11:33,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416612603] [2022-11-16 11:11:33,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416612603] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:11:33,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:11:33,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:11:33,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091582279] [2022-11-16 11:11:33,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:11:33,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:11:33,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:11:33,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:11:33,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:11:33,448 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 329 [2022-11-16 11:11:33,449 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 238 transitions, 490 flow. Second operand has 3 states, 3 states have (on average 233.33333333333334) internal successors, (700), 3 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:33,450 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:11:33,450 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 329 [2022-11-16 11:11:33,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:11:37,872 INFO L130 PetriNetUnfolder]: 16567/24953 cut-off events. [2022-11-16 11:11:37,872 INFO L131 PetriNetUnfolder]: For 781/2142 co-relation queries the response was YES. [2022-11-16 11:11:37,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47934 conditions, 24953 events. 16567/24953 cut-off events. For 781/2142 co-relation queries the response was YES. Maximal size of possible extension queue 953. Compared 167096 event pairs, 16564 based on Foata normal form. 0/24674 useless extension candidates. Maximal degree in co-relation 47860. Up to 22038 conditions per place. [2022-11-16 11:11:38,479 INFO L137 encePairwiseOnDemand]: 326/329 looper letters, 37 selfloop transitions, 2 changer transitions 0/237 dead transitions. [2022-11-16 11:11:38,479 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 237 transitions, 566 flow [2022-11-16 11:11:38,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:11:38,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:11:38,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 736 transitions. [2022-11-16 11:11:38,483 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.745694022289767 [2022-11-16 11:11:38,483 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 736 transitions. [2022-11-16 11:11:38,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 736 transitions. [2022-11-16 11:11:38,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:11:38,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 736 transitions. [2022-11-16 11:11:38,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:38,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:38,493 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:38,493 INFO L175 Difference]: Start difference. First operand has 243 places, 238 transitions, 490 flow. Second operand 3 states and 736 transitions. [2022-11-16 11:11:38,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 237 transitions, 566 flow [2022-11-16 11:11:38,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 237 transitions, 562 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:11:38,501 INFO L231 Difference]: Finished difference. Result has 242 places, 237 transitions, 488 flow [2022-11-16 11:11:38,502 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=488, PETRI_PLACES=242, PETRI_TRANSITIONS=237} [2022-11-16 11:11:38,503 INFO L288 CegarLoopForPetriNet]: 312 programPoint places, -70 predicate places. [2022-11-16 11:11:38,504 INFO L495 AbstractCegarLoop]: Abstraction has has 242 places, 237 transitions, 488 flow [2022-11-16 11:11:38,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 233.33333333333334) internal successors, (700), 3 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:38,505 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:11:38,505 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] [2022-11-16 11:11:38,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:11:38,506 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-11-16 11:11:38,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:11:38,507 INFO L85 PathProgramCache]: Analyzing trace with hash -523851229, now seen corresponding path program 1 times [2022-11-16 11:11:38,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:11:38,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968948300] [2022-11-16 11:11:38,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:11:38,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:11:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:38,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:11:38,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:11:38,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968948300] [2022-11-16 11:11:38,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968948300] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:11:38,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:11:38,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:11:38,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387239024] [2022-11-16 11:11:38,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:11:38,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:11:38,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:11:38,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:11:38,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:11:38,637 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 329 [2022-11-16 11:11:38,639 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 237 transitions, 488 flow. Second operand has 3 states, 3 states have (on average 233.33333333333334) internal successors, (700), 3 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:38,640 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:11:38,640 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 329 [2022-11-16 11:11:38,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand