./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/bench-exp2x9.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb6ab59-06b6-4257-8437-acaf8e338951/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb6ab59-06b6-4257-8437-acaf8e338951/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_abb6ab59-06b6-4257-8437-acaf8e338951/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb6ab59-06b6-4257-8437-acaf8e338951/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/bench-exp2x9.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb6ab59-06b6-4257-8437-acaf8e338951/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_abb6ab59-06b6-4257-8437-acaf8e338951/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 d6a1dd92aa2998cfb1326128fd549d301e029b328accb048c4d2ec692e416e63 --- 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 12:32:59,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:32:59,118 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:32:59,168 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:32:59,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:32:59,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:32:59,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:32:59,189 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:32:59,191 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:32:59,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:32:59,195 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:32:59,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:32:59,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:32:59,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:32:59,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:32:59,208 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:32:59,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:32:59,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:32:59,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:32:59,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:32:59,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:32:59,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:32:59,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:32:59,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:32:59,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:32:59,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:32:59,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:32:59,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:32:59,249 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:32:59,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:32:59,251 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:32:59,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:32:59,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:32:59,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:32:59,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:32:59,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:32:59,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:32:59,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:32:59,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:32:59,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:32:59,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:32:59,268 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb6ab59-06b6-4257-8437-acaf8e338951/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:32:59,317 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:32:59,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:32:59,319 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:32:59,319 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:32:59,320 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:32:59,321 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:32:59,322 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:32:59,322 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:32:59,322 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:32:59,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:32:59,324 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:32:59,325 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:32:59,325 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:32:59,325 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:32:59,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:32:59,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:32:59,326 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:32:59,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:32:59,327 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:32:59,327 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:32:59,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:32:59,328 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:32:59,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:32:59,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:32:59,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:32:59,329 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:32:59,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:32:59,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:32:59,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:32:59,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:32:59,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:32:59,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:32:59,332 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:32:59,332 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:32:59,332 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:32:59,333 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_abb6ab59-06b6-4257-8437-acaf8e338951/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb6ab59-06b6-4257-8437-acaf8e338951/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6a1dd92aa2998cfb1326128fd549d301e029b328accb048c4d2ec692e416e63 [2022-11-16 12:32:59,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:32:59,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:32:59,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:32:59,739 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:32:59,740 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:32:59,741 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb6ab59-06b6-4257-8437-acaf8e338951/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/bench-exp2x9.wvr.c [2022-11-16 12:32:59,834 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb6ab59-06b6-4257-8437-acaf8e338951/bin/uautomizer-tPACEb0tL8/data/26112c64b/0ee2bd46a49b4c479bc2d0360ea14855/FLAG3d19b10a0 [2022-11-16 12:33:00,401 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:33:00,402 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb6ab59-06b6-4257-8437-acaf8e338951/sv-benchmarks/c/weaver/bench-exp2x9.wvr.c [2022-11-16 12:33:00,411 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb6ab59-06b6-4257-8437-acaf8e338951/bin/uautomizer-tPACEb0tL8/data/26112c64b/0ee2bd46a49b4c479bc2d0360ea14855/FLAG3d19b10a0 [2022-11-16 12:33:00,746 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb6ab59-06b6-4257-8437-acaf8e338951/bin/uautomizer-tPACEb0tL8/data/26112c64b/0ee2bd46a49b4c479bc2d0360ea14855 [2022-11-16 12:33:00,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:33:00,752 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:33:00,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:33:00,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:33:00,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:33:00,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:33:00" (1/1) ... [2022-11-16 12:33:00,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56153cba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:00, skipping insertion in model container [2022-11-16 12:33:00,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:33:00" (1/1) ... [2022-11-16 12:33:00,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:33:00,800 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:33:01,166 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_abb6ab59-06b6-4257-8437-acaf8e338951/sv-benchmarks/c/weaver/bench-exp2x9.wvr.c[2669,2682] [2022-11-16 12:33:01,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:33:01,188 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:33:01,257 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_abb6ab59-06b6-4257-8437-acaf8e338951/sv-benchmarks/c/weaver/bench-exp2x9.wvr.c[2669,2682] [2022-11-16 12:33:01,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:33:01,279 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:33:01,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:01 WrapperNode [2022-11-16 12:33:01,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:33:01,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:33:01,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:33:01,281 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:33:01,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:01" (1/1) ... [2022-11-16 12:33:01,313 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:01" (1/1) ... [2022-11-16 12:33:01,359 INFO L138 Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 167 [2022-11-16 12:33:01,359 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:33:01,360 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:33:01,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:33:01,360 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:33:01,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:01" (1/1) ... [2022-11-16 12:33:01,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:01" (1/1) ... [2022-11-16 12:33:01,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:01" (1/1) ... [2022-11-16 12:33:01,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:01" (1/1) ... [2022-11-16 12:33:01,411 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:01" (1/1) ... [2022-11-16 12:33:01,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:01" (1/1) ... [2022-11-16 12:33:01,424 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:01" (1/1) ... [2022-11-16 12:33:01,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:01" (1/1) ... [2022-11-16 12:33:01,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:33:01,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:33:01,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:33:01,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:33:01,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:01" (1/1) ... [2022-11-16 12:33:01,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:33:01,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb6ab59-06b6-4257-8437-acaf8e338951/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:33:01,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb6ab59-06b6-4257-8437-acaf8e338951/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:33:01,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb6ab59-06b6-4257-8437-acaf8e338951/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:33:01,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:33:01,539 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 12:33:01,539 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 12:33:01,539 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 12:33:01,539 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 12:33:01,541 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 12:33:01,541 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 12:33:01,541 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-16 12:33:01,542 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-16 12:33:01,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:33:01,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:33:01,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:33:01,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:33:01,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:33:01,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:33:01,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:33:01,544 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 12:33:01,719 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:33:01,721 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:33:02,841 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:33:02,861 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:33:02,861 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-16 12:33:02,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:33:02 BoogieIcfgContainer [2022-11-16 12:33:02,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:33:02,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:33:02,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:33:02,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:33:02,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:33:00" (1/3) ... [2022-11-16 12:33:02,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a6eac1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:33:02, skipping insertion in model container [2022-11-16 12:33:02,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:01" (2/3) ... [2022-11-16 12:33:02,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a6eac1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:33:02, skipping insertion in model container [2022-11-16 12:33:02,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:33:02" (3/3) ... [2022-11-16 12:33:02,878 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x9.wvr.c [2022-11-16 12:33:02,890 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:33:02,904 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:33:02,904 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 111 error locations. [2022-11-16 12:33:02,905 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:33:03,139 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-16 12:33:03,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 578 places, 579 transitions, 1190 flow [2022-11-16 12:33:03,535 INFO L130 PetriNetUnfolder]: 14/575 cut-off events. [2022-11-16 12:33:03,535 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-16 12:33:03,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 592 conditions, 575 events. 14/575 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1939 event pairs, 0 based on Foata normal form. 0/450 useless extension candidates. Maximal degree in co-relation 419. Up to 2 conditions per place. [2022-11-16 12:33:03,556 INFO L82 GeneralOperation]: Start removeDead. Operand has 578 places, 579 transitions, 1190 flow [2022-11-16 12:33:03,585 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 551 places, 550 transitions, 1124 flow [2022-11-16 12:33:03,608 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:33:03,618 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;@5df007b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:33:03,618 INFO L358 AbstractCegarLoop]: Starting to check reachability of 207 error locations. [2022-11-16 12:33:03,624 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2022-11-16 12:33:03,624 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:33:03,624 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:03,625 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:03,626 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:03,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:03,636 INFO L85 PathProgramCache]: Analyzing trace with hash 642133218, now seen corresponding path program 1 times [2022-11-16 12:33:03,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:03,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569657829] [2022-11-16 12:33:03,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:03,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:03,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:03,988 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 12:33:03,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:03,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569657829] [2022-11-16 12:33:03,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569657829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:03,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:03,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:03,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845644619] [2022-11-16 12:33:03,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:04,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:04,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:04,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:04,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:04,078 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 483 out of 579 [2022-11-16 12:33:04,086 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 551 places, 550 transitions, 1124 flow. Second operand has 3 states, 3 states have (on average 484.3333333333333) internal successors, (1453), 3 states have internal predecessors, (1453), 0 states have call successors, (0), 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 12:33:04,086 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:04,086 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 483 of 579 [2022-11-16 12:33:04,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:05,031 INFO L130 PetriNetUnfolder]: 208/1024 cut-off events. [2022-11-16 12:33:05,031 INFO L131 PetriNetUnfolder]: For 214/221 co-relation queries the response was YES. [2022-11-16 12:33:05,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1922 conditions, 1024 events. 208/1024 cut-off events. For 214/221 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6548 event pairs, 198 based on Foata normal form. 409/1235 useless extension candidates. Maximal degree in co-relation 1750. Up to 483 conditions per place. [2022-11-16 12:33:05,099 INFO L137 encePairwiseOnDemand]: 571/579 looper letters, 86 selfloop transitions, 2 changer transitions 1/544 dead transitions. [2022-11-16 12:33:05,099 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 552 places, 544 transitions, 1288 flow [2022-11-16 12:33:05,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:05,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:05,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1543 transitions. [2022-11-16 12:33:05,129 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8883131836499712 [2022-11-16 12:33:05,131 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1543 transitions. [2022-11-16 12:33:05,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1543 transitions. [2022-11-16 12:33:05,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:05,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1543 transitions. [2022-11-16 12:33:05,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 514.3333333333334) internal successors, (1543), 3 states have internal predecessors, (1543), 0 states have call successors, (0), 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 12:33:05,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:05,168 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:05,171 INFO L175 Difference]: Start difference. First operand has 551 places, 550 transitions, 1124 flow. Second operand 3 states and 1543 transitions. [2022-11-16 12:33:05,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 552 places, 544 transitions, 1288 flow [2022-11-16 12:33:05,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 544 transitions, 1272 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-16 12:33:05,193 INFO L231 Difference]: Finished difference. Result has 544 places, 543 transitions, 1098 flow [2022-11-16 12:33:05,197 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1096, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=544, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=542, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1098, PETRI_PLACES=544, PETRI_TRANSITIONS=543} [2022-11-16 12:33:05,201 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -7 predicate places. [2022-11-16 12:33:05,201 INFO L495 AbstractCegarLoop]: Abstraction has has 544 places, 543 transitions, 1098 flow [2022-11-16 12:33:05,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 484.3333333333333) internal successors, (1453), 3 states have internal predecessors, (1453), 0 states have call successors, (0), 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 12:33:05,203 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:05,204 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 12:33:05,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:33:05,204 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:05,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:05,205 INFO L85 PathProgramCache]: Analyzing trace with hash -178721102, now seen corresponding path program 1 times [2022-11-16 12:33:05,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:05,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564139438] [2022-11-16 12:33:05,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:05,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:05,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:05,355 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 12:33:05,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:05,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564139438] [2022-11-16 12:33:05,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564139438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:05,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:05,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:05,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766721471] [2022-11-16 12:33:05,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:05,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:05,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:05,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:05,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:05,362 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 486 out of 579 [2022-11-16 12:33:05,365 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 543 transitions, 1098 flow. Second operand has 3 states, 3 states have (on average 487.3333333333333) internal successors, (1462), 3 states have internal predecessors, (1462), 0 states have call successors, (0), 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 12:33:05,365 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:05,366 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 486 of 579 [2022-11-16 12:33:05,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:06,049 INFO L130 PetriNetUnfolder]: 208/1022 cut-off events. [2022-11-16 12:33:06,050 INFO L131 PetriNetUnfolder]: For 70/76 co-relation queries the response was YES. [2022-11-16 12:33:06,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1644 conditions, 1022 events. 208/1022 cut-off events. For 70/76 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7209 event pairs, 198 based on Foata normal form. 0/822 useless extension candidates. Maximal degree in co-relation 1611. Up to 480 conditions per place. [2022-11-16 12:33:06,102 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 83 selfloop transitions, 2 changer transitions 0/542 dead transitions. [2022-11-16 12:33:06,102 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 542 transitions, 1266 flow [2022-11-16 12:33:06,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:06,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:06,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1544 transitions. [2022-11-16 12:33:06,106 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2022-11-16 12:33:06,106 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1544 transitions. [2022-11-16 12:33:06,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1544 transitions. [2022-11-16 12:33:06,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:06,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1544 transitions. [2022-11-16 12:33:06,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 514.6666666666666) internal successors, (1544), 3 states have internal predecessors, (1544), 0 states have call successors, (0), 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 12:33:06,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:06,117 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:06,117 INFO L175 Difference]: Start difference. First operand has 544 places, 543 transitions, 1098 flow. Second operand 3 states and 1544 transitions. [2022-11-16 12:33:06,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 542 transitions, 1266 flow [2022-11-16 12:33:06,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 542 transitions, 1262 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:06,130 INFO L231 Difference]: Finished difference. Result has 542 places, 542 transitions, 1096 flow [2022-11-16 12:33:06,131 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1092, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=542, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=540, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1096, PETRI_PLACES=542, PETRI_TRANSITIONS=542} [2022-11-16 12:33:06,132 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -9 predicate places. [2022-11-16 12:33:06,132 INFO L495 AbstractCegarLoop]: Abstraction has has 542 places, 542 transitions, 1096 flow [2022-11-16 12:33:06,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 487.3333333333333) internal successors, (1462), 3 states have internal predecessors, (1462), 0 states have call successors, (0), 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 12:33:06,133 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:06,133 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:06,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:33:06,134 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:06,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:06,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1906417989, now seen corresponding path program 1 times [2022-11-16 12:33:06,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:06,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906174458] [2022-11-16 12:33:06,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:06,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:06,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:06,249 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 12:33:06,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:06,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906174458] [2022-11-16 12:33:06,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906174458] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:06,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:06,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:06,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536042311] [2022-11-16 12:33:06,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:06,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:06,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:06,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:06,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:06,254 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 483 out of 579 [2022-11-16 12:33:06,257 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 542 transitions, 1096 flow. Second operand has 3 states, 3 states have (on average 484.3333333333333) internal successors, (1453), 3 states have internal predecessors, (1453), 0 states have call successors, (0), 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 12:33:06,257 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:06,257 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 483 of 579 [2022-11-16 12:33:06,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:07,061 INFO L130 PetriNetUnfolder]: 208/1021 cut-off events. [2022-11-16 12:33:07,061 INFO L131 PetriNetUnfolder]: For 136/142 co-relation queries the response was YES. [2022-11-16 12:33:07,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1580 conditions, 1021 events. 208/1021 cut-off events. For 136/142 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 7290 event pairs, 198 based on Foata normal form. 0/819 useless extension candidates. Maximal degree in co-relation 1541. Up to 483 conditions per place. [2022-11-16 12:33:07,111 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 86 selfloop transitions, 2 changer transitions 0/541 dead transitions. [2022-11-16 12:33:07,111 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 543 places, 541 transitions, 1270 flow [2022-11-16 12:33:07,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:07,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:07,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1538 transitions. [2022-11-16 12:33:07,115 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8854346574553829 [2022-11-16 12:33:07,116 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1538 transitions. [2022-11-16 12:33:07,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1538 transitions. [2022-11-16 12:33:07,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:07,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1538 transitions. [2022-11-16 12:33:07,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 512.6666666666666) internal successors, (1538), 3 states have internal predecessors, (1538), 0 states have call successors, (0), 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 12:33:07,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:07,129 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:07,129 INFO L175 Difference]: Start difference. First operand has 542 places, 542 transitions, 1096 flow. Second operand 3 states and 1538 transitions. [2022-11-16 12:33:07,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 543 places, 541 transitions, 1270 flow [2022-11-16 12:33:07,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 541 places, 541 transitions, 1266 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:07,141 INFO L231 Difference]: Finished difference. Result has 541 places, 541 transitions, 1094 flow [2022-11-16 12:33:07,142 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1090, PETRI_DIFFERENCE_MINUEND_PLACES=539, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=541, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=539, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1094, PETRI_PLACES=541, PETRI_TRANSITIONS=541} [2022-11-16 12:33:07,143 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -10 predicate places. [2022-11-16 12:33:07,143 INFO L495 AbstractCegarLoop]: Abstraction has has 541 places, 541 transitions, 1094 flow [2022-11-16 12:33:07,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 484.3333333333333) internal successors, (1453), 3 states have internal predecessors, (1453), 0 states have call successors, (0), 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 12:33:07,145 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:07,145 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] [2022-11-16 12:33:07,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:33:07,146 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:07,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:07,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1905793287, now seen corresponding path program 1 times [2022-11-16 12:33:07,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:07,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779095256] [2022-11-16 12:33:07,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:07,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:07,206 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 12:33:07,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:07,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779095256] [2022-11-16 12:33:07,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779095256] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:07,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:07,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:07,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255158855] [2022-11-16 12:33:07,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:07,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:07,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:07,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:07,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:07,211 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 486 out of 579 [2022-11-16 12:33:07,214 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 541 transitions, 1094 flow. Second operand has 3 states, 3 states have (on average 487.3333333333333) internal successors, (1462), 3 states have internal predecessors, (1462), 0 states have call successors, (0), 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 12:33:07,214 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:07,214 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 486 of 579 [2022-11-16 12:33:07,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:07,858 INFO L130 PetriNetUnfolder]: 208/1020 cut-off events. [2022-11-16 12:33:07,858 INFO L131 PetriNetUnfolder]: For 202/208 co-relation queries the response was YES. [2022-11-16 12:33:07,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1509 conditions, 1020 events. 208/1020 cut-off events. For 202/208 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 7516 event pairs, 198 based on Foata normal form. 0/817 useless extension candidates. Maximal degree in co-relation 1464. Up to 479 conditions per place. [2022-11-16 12:33:07,902 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 82 selfloop transitions, 2 changer transitions 0/540 dead transitions. [2022-11-16 12:33:07,902 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 540 transitions, 1260 flow [2022-11-16 12:33:07,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:07,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:07,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1543 transitions. [2022-11-16 12:33:07,960 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8883131836499712 [2022-11-16 12:33:07,960 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1543 transitions. [2022-11-16 12:33:07,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1543 transitions. [2022-11-16 12:33:07,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:07,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1543 transitions. [2022-11-16 12:33:07,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 514.3333333333334) internal successors, (1543), 3 states have internal predecessors, (1543), 0 states have call successors, (0), 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 12:33:07,972 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:07,974 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:07,974 INFO L175 Difference]: Start difference. First operand has 541 places, 541 transitions, 1094 flow. Second operand 3 states and 1543 transitions. [2022-11-16 12:33:07,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 540 transitions, 1260 flow [2022-11-16 12:33:07,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 540 places, 540 transitions, 1256 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:07,987 INFO L231 Difference]: Finished difference. Result has 540 places, 540 transitions, 1092 flow [2022-11-16 12:33:07,988 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1088, PETRI_DIFFERENCE_MINUEND_PLACES=538, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=540, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=538, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1092, PETRI_PLACES=540, PETRI_TRANSITIONS=540} [2022-11-16 12:33:07,989 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -11 predicate places. [2022-11-16 12:33:07,989 INFO L495 AbstractCegarLoop]: Abstraction has has 540 places, 540 transitions, 1092 flow [2022-11-16 12:33:07,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 487.3333333333333) internal successors, (1462), 3 states have internal predecessors, (1462), 0 states have call successors, (0), 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 12:33:07,990 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:07,991 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] [2022-11-16 12:33:07,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:33:07,991 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:07,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:07,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1236202634, now seen corresponding path program 1 times [2022-11-16 12:33:07,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:07,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918377623] [2022-11-16 12:33:07,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:07,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:08,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:08,046 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 12:33:08,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:08,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918377623] [2022-11-16 12:33:08,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918377623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:08,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:08,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:08,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161060007] [2022-11-16 12:33:08,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:08,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:08,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:08,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:08,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:08,051 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 546 out of 579 [2022-11-16 12:33:08,054 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 540 places, 540 transitions, 1092 flow. Second operand has 3 states, 3 states have (on average 547.3333333333334) internal successors, (1642), 3 states have internal predecessors, (1642), 0 states have call successors, (0), 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 12:33:08,054 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:08,054 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 546 of 579 [2022-11-16 12:33:08,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:12,236 INFO L130 PetriNetUnfolder]: 1030/16607 cut-off events. [2022-11-16 12:33:12,236 INFO L131 PetriNetUnfolder]: For 85/193 co-relation queries the response was YES. [2022-11-16 12:33:12,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17982 conditions, 16607 events. 1030/16607 cut-off events. For 85/193 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 223638 event pairs, 855 based on Foata normal form. 0/12398 useless extension candidates. Maximal degree in co-relation 17931. Up to 1284 conditions per place. [2022-11-16 12:33:12,760 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 23 selfloop transitions, 2 changer transitions 0/539 dead transitions. [2022-11-16 12:33:12,760 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 539 transitions, 1140 flow [2022-11-16 12:33:12,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:12,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:12,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1664 transitions. [2022-11-16 12:33:12,765 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9579735175590098 [2022-11-16 12:33:12,766 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1664 transitions. [2022-11-16 12:33:12,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1664 transitions. [2022-11-16 12:33:12,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:12,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1664 transitions. [2022-11-16 12:33:12,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 554.6666666666666) internal successors, (1664), 3 states have internal predecessors, (1664), 0 states have call successors, (0), 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 12:33:12,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:12,780 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:12,780 INFO L175 Difference]: Start difference. First operand has 540 places, 540 transitions, 1092 flow. Second operand 3 states and 1664 transitions. [2022-11-16 12:33:12,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 539 transitions, 1140 flow [2022-11-16 12:33:12,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 539 places, 539 transitions, 1136 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:12,793 INFO L231 Difference]: Finished difference. Result has 539 places, 539 transitions, 1090 flow [2022-11-16 12:33:12,794 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1086, PETRI_DIFFERENCE_MINUEND_PLACES=537, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=537, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1090, PETRI_PLACES=539, PETRI_TRANSITIONS=539} [2022-11-16 12:33:12,797 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -12 predicate places. [2022-11-16 12:33:12,798 INFO L495 AbstractCegarLoop]: Abstraction has has 539 places, 539 transitions, 1090 flow [2022-11-16 12:33:12,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 547.3333333333334) internal successors, (1642), 3 states have internal predecessors, (1642), 0 states have call successors, (0), 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 12:33:12,800 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:12,800 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:12,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:33:12,801 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:12,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:12,802 INFO L85 PathProgramCache]: Analyzing trace with hash -921526617, now seen corresponding path program 1 times [2022-11-16 12:33:12,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:12,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914890655] [2022-11-16 12:33:12,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:12,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:12,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:12,898 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 12:33:12,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:12,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914890655] [2022-11-16 12:33:12,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914890655] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:12,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:12,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:12,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963640329] [2022-11-16 12:33:12,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:12,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:12,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:12,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:12,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:12,908 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 486 out of 579 [2022-11-16 12:33:12,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 539 transitions, 1090 flow. Second operand has 3 states, 3 states have (on average 487.3333333333333) internal successors, (1462), 3 states have internal predecessors, (1462), 0 states have call successors, (0), 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 12:33:12,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:12,911 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 486 of 579 [2022-11-16 12:33:12,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:13,407 INFO L130 PetriNetUnfolder]: 163/915 cut-off events. [2022-11-16 12:33:13,407 INFO L131 PetriNetUnfolder]: For 4/9 co-relation queries the response was YES. [2022-11-16 12:33:13,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1454 conditions, 915 events. 163/915 cut-off events. For 4/9 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 5612 event pairs, 90 based on Foata normal form. 0/788 useless extension candidates. Maximal degree in co-relation 1396. Up to 228 conditions per place. [2022-11-16 12:33:13,447 INFO L137 encePairwiseOnDemand]: 546/579 looper letters, 56 selfloop transitions, 15 changer transitions 0/525 dead transitions. [2022-11-16 12:33:13,447 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 523 places, 525 transitions, 1207 flow [2022-11-16 12:33:13,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:13,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:13,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1547 transitions. [2022-11-16 12:33:13,453 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8906160046056419 [2022-11-16 12:33:13,453 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1547 transitions. [2022-11-16 12:33:13,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1547 transitions. [2022-11-16 12:33:13,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:13,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1547 transitions. [2022-11-16 12:33:13,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 515.6666666666666) internal successors, (1547), 3 states have internal predecessors, (1547), 0 states have call successors, (0), 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 12:33:13,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:13,469 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:13,469 INFO L175 Difference]: Start difference. First operand has 539 places, 539 transitions, 1090 flow. Second operand 3 states and 1547 transitions. [2022-11-16 12:33:13,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 523 places, 525 transitions, 1207 flow [2022-11-16 12:33:13,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 521 places, 525 transitions, 1203 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:13,487 INFO L231 Difference]: Finished difference. Result has 522 places, 522 transitions, 1099 flow [2022-11-16 12:33:13,488 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1050, PETRI_DIFFERENCE_MINUEND_PLACES=519, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=506, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1099, PETRI_PLACES=522, PETRI_TRANSITIONS=522} [2022-11-16 12:33:13,491 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -29 predicate places. [2022-11-16 12:33:13,492 INFO L495 AbstractCegarLoop]: Abstraction has has 522 places, 522 transitions, 1099 flow [2022-11-16 12:33:13,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 487.3333333333333) internal successors, (1462), 3 states have internal predecessors, (1462), 0 states have call successors, (0), 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 12:33:13,494 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:13,495 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] [2022-11-16 12:33:13,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:33:13,496 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:13,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:13,496 INFO L85 PathProgramCache]: Analyzing trace with hash -823776531, now seen corresponding path program 1 times [2022-11-16 12:33:13,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:13,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131731851] [2022-11-16 12:33:13,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:13,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:13,606 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 12:33:13,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:13,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131731851] [2022-11-16 12:33:13,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131731851] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:13,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:13,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:13,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310144415] [2022-11-16 12:33:13,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:13,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:13,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:13,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:13,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:13,612 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 489 out of 579 [2022-11-16 12:33:13,615 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 522 places, 522 transitions, 1099 flow. Second operand has 3 states, 3 states have (on average 490.3333333333333) internal successors, (1471), 3 states have internal predecessors, (1471), 0 states have call successors, (0), 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 12:33:13,615 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:13,615 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 489 of 579 [2022-11-16 12:33:13,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:14,304 INFO L130 PetriNetUnfolder]: 163/899 cut-off events. [2022-11-16 12:33:14,304 INFO L131 PetriNetUnfolder]: For 62/66 co-relation queries the response was YES. [2022-11-16 12:33:14,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1407 conditions, 899 events. 163/899 cut-off events. For 62/66 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 5646 event pairs, 90 based on Foata normal form. 0/786 useless extension candidates. Maximal degree in co-relation 1262. Up to 226 conditions per place. [2022-11-16 12:33:14,346 INFO L137 encePairwiseOnDemand]: 547/579 looper letters, 54 selfloop transitions, 15 changer transitions 0/509 dead transitions. [2022-11-16 12:33:14,347 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 509 transitions, 1214 flow [2022-11-16 12:33:14,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:14,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:14,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1553 transitions. [2022-11-16 12:33:14,352 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8940702360391479 [2022-11-16 12:33:14,352 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1553 transitions. [2022-11-16 12:33:14,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1553 transitions. [2022-11-16 12:33:14,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:14,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1553 transitions. [2022-11-16 12:33:14,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 517.6666666666666) internal successors, (1553), 3 states have internal predecessors, (1553), 0 states have call successors, (0), 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 12:33:14,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:14,365 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:14,366 INFO L175 Difference]: Start difference. First operand has 522 places, 522 transitions, 1099 flow. Second operand 3 states and 1553 transitions. [2022-11-16 12:33:14,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 509 transitions, 1214 flow [2022-11-16 12:33:14,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 506 places, 509 transitions, 1199 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:33:14,380 INFO L231 Difference]: Finished difference. Result has 507 places, 506 transitions, 1099 flow [2022-11-16 12:33:14,381 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1050, PETRI_DIFFERENCE_MINUEND_PLACES=504, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=505, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=490, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1099, PETRI_PLACES=507, PETRI_TRANSITIONS=506} [2022-11-16 12:33:14,382 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -44 predicate places. [2022-11-16 12:33:14,383 INFO L495 AbstractCegarLoop]: Abstraction has has 507 places, 506 transitions, 1099 flow [2022-11-16 12:33:14,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 490.3333333333333) internal successors, (1471), 3 states have internal predecessors, (1471), 0 states have call successors, (0), 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 12:33:14,404 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:14,405 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] [2022-11-16 12:33:14,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:33:14,405 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:14,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:14,406 INFO L85 PathProgramCache]: Analyzing trace with hash 166114238, now seen corresponding path program 1 times [2022-11-16 12:33:14,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:14,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219416843] [2022-11-16 12:33:14,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:14,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:14,473 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 12:33:14,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:14,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219416843] [2022-11-16 12:33:14,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219416843] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:14,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:14,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:14,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753556562] [2022-11-16 12:33:14,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:14,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:14,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:14,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:14,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:14,479 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 486 out of 579 [2022-11-16 12:33:14,481 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 506 transitions, 1099 flow. Second operand has 3 states, 3 states have (on average 487.3333333333333) internal successors, (1462), 3 states have internal predecessors, (1462), 0 states have call successors, (0), 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 12:33:14,482 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:14,482 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 486 of 579 [2022-11-16 12:33:14,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:15,043 INFO L130 PetriNetUnfolder]: 170/1198 cut-off events. [2022-11-16 12:33:15,043 INFO L131 PetriNetUnfolder]: For 122/126 co-relation queries the response was YES. [2022-11-16 12:33:15,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1722 conditions, 1198 events. 170/1198 cut-off events. For 122/126 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 8607 event pairs, 63 based on Foata normal form. 1/1059 useless extension candidates. Maximal degree in co-relation 1487. Up to 229 conditions per place. [2022-11-16 12:33:15,079 INFO L137 encePairwiseOnDemand]: 545/579 looper letters, 59 selfloop transitions, 16 changer transitions 0/496 dead transitions. [2022-11-16 12:33:15,079 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 496 transitions, 1235 flow [2022-11-16 12:33:15,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:15,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:15,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1551 transitions. [2022-11-16 12:33:15,084 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8929188255613126 [2022-11-16 12:33:15,084 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1551 transitions. [2022-11-16 12:33:15,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1551 transitions. [2022-11-16 12:33:15,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:15,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1551 transitions. [2022-11-16 12:33:15,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 517.0) internal successors, (1551), 3 states have internal predecessors, (1551), 0 states have call successors, (0), 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 12:33:15,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:15,094 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:15,094 INFO L175 Difference]: Start difference. First operand has 507 places, 506 transitions, 1099 flow. Second operand 3 states and 1551 transitions. [2022-11-16 12:33:15,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 496 transitions, 1235 flow [2022-11-16 12:33:15,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 490 places, 496 transitions, 1220 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:33:15,105 INFO L231 Difference]: Finished difference. Result has 491 places, 490 transitions, 1104 flow [2022-11-16 12:33:15,106 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1048, PETRI_DIFFERENCE_MINUEND_PLACES=488, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=488, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=472, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1104, PETRI_PLACES=491, PETRI_TRANSITIONS=490} [2022-11-16 12:33:15,107 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -60 predicate places. [2022-11-16 12:33:15,107 INFO L495 AbstractCegarLoop]: Abstraction has has 491 places, 490 transitions, 1104 flow [2022-11-16 12:33:15,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 487.3333333333333) internal successors, (1462), 3 states have internal predecessors, (1462), 0 states have call successors, (0), 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 12:33:15,108 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:15,108 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:15,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:33:15,108 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:15,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:15,109 INFO L85 PathProgramCache]: Analyzing trace with hash 722031064, now seen corresponding path program 1 times [2022-11-16 12:33:15,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:15,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658955735] [2022-11-16 12:33:15,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:15,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:15,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:15,171 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 12:33:15,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:15,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658955735] [2022-11-16 12:33:15,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658955735] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:15,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:15,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:33:15,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424236954] [2022-11-16 12:33:15,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:15,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:33:15,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:15,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:33:15,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:33:15,176 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 552 out of 579 [2022-11-16 12:33:15,178 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 490 transitions, 1104 flow. Second operand has 4 states, 4 states have (on average 553.25) internal successors, (2213), 4 states have internal predecessors, (2213), 0 states have call successors, (0), 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 12:33:15,178 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:15,178 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 552 of 579 [2022-11-16 12:33:15,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:15,502 INFO L130 PetriNetUnfolder]: 12/837 cut-off events. [2022-11-16 12:33:15,502 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-16 12:33:15,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 977 conditions, 837 events. 12/837 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3967 event pairs, 0 based on Foata normal form. 0/731 useless extension candidates. Maximal degree in co-relation 682. Up to 27 conditions per place. [2022-11-16 12:33:15,512 INFO L137 encePairwiseOnDemand]: 573/579 looper letters, 22 selfloop transitions, 5 changer transitions 0/497 dead transitions. [2022-11-16 12:33:15,512 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 495 places, 497 transitions, 1172 flow [2022-11-16 12:33:15,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:33:15,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:33:15,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2788 transitions. [2022-11-16 12:33:15,519 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9630397236614853 [2022-11-16 12:33:15,519 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2788 transitions. [2022-11-16 12:33:15,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2788 transitions. [2022-11-16 12:33:15,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:15,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2788 transitions. [2022-11-16 12:33:15,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 557.6) internal successors, (2788), 5 states have internal predecessors, (2788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:15,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 579.0) internal successors, (3474), 6 states have internal predecessors, (3474), 0 states have call successors, (0), 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 12:33:15,533 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 579.0) internal successors, (3474), 6 states have internal predecessors, (3474), 0 states have call successors, (0), 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 12:33:15,533 INFO L175 Difference]: Start difference. First operand has 491 places, 490 transitions, 1104 flow. Second operand 5 states and 2788 transitions. [2022-11-16 12:33:15,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 495 places, 497 transitions, 1172 flow [2022-11-16 12:33:15,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 497 transitions, 1156 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:33:15,544 INFO L231 Difference]: Finished difference. Result has 498 places, 494 transitions, 1126 flow [2022-11-16 12:33:15,545 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1088, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=485, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1126, PETRI_PLACES=498, PETRI_TRANSITIONS=494} [2022-11-16 12:33:15,546 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -53 predicate places. [2022-11-16 12:33:15,546 INFO L495 AbstractCegarLoop]: Abstraction has has 498 places, 494 transitions, 1126 flow [2022-11-16 12:33:15,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 553.25) internal successors, (2213), 4 states have internal predecessors, (2213), 0 states have call successors, (0), 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 12:33:15,547 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:15,547 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 12:33:15,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:33:15,547 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:15,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:15,548 INFO L85 PathProgramCache]: Analyzing trace with hash 684487429, now seen corresponding path program 1 times [2022-11-16 12:33:15,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:15,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471900176] [2022-11-16 12:33:15,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:15,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:15,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:15,623 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 12:33:15,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:15,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471900176] [2022-11-16 12:33:15,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471900176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:15,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:15,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:15,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77817286] [2022-11-16 12:33:15,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:15,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:15,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:15,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:15,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:15,627 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 489 out of 579 [2022-11-16 12:33:15,628 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 494 transitions, 1126 flow. Second operand has 3 states, 3 states have (on average 490.3333333333333) internal successors, (1471), 3 states have internal predecessors, (1471), 0 states have call successors, (0), 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 12:33:15,628 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:15,628 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 489 of 579 [2022-11-16 12:33:15,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:16,361 INFO L130 PetriNetUnfolder]: 278/1758 cut-off events. [2022-11-16 12:33:16,361 INFO L131 PetriNetUnfolder]: For 268/272 co-relation queries the response was YES. [2022-11-16 12:33:16,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2568 conditions, 1758 events. 278/1758 cut-off events. For 268/272 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 14510 event pairs, 105 based on Foata normal form. 2/1596 useless extension candidates. Maximal degree in co-relation 2071. Up to 375 conditions per place. [2022-11-16 12:33:16,394 INFO L137 encePairwiseOnDemand]: 547/579 looper letters, 55 selfloop transitions, 15 changer transitions 11/485 dead transitions. [2022-11-16 12:33:16,394 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 485 transitions, 1259 flow [2022-11-16 12:33:16,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:16,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:16,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1556 transitions. [2022-11-16 12:33:16,399 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.895797351755901 [2022-11-16 12:33:16,399 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1556 transitions. [2022-11-16 12:33:16,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1556 transitions. [2022-11-16 12:33:16,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:16,400 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1556 transitions. [2022-11-16 12:33:16,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 518.6666666666666) internal successors, (1556), 3 states have internal predecessors, (1556), 0 states have call successors, (0), 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 12:33:16,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:16,409 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:16,409 INFO L175 Difference]: Start difference. First operand has 498 places, 494 transitions, 1126 flow. Second operand 3 states and 1556 transitions. [2022-11-16 12:33:16,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 485 transitions, 1259 flow [2022-11-16 12:33:16,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 485 transitions, 1259 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:33:16,422 INFO L231 Difference]: Finished difference. Result has 484 places, 467 transitions, 1118 flow [2022-11-16 12:33:16,423 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1092, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=477, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1118, PETRI_PLACES=484, PETRI_TRANSITIONS=467} [2022-11-16 12:33:16,424 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -67 predicate places. [2022-11-16 12:33:16,424 INFO L495 AbstractCegarLoop]: Abstraction has has 484 places, 467 transitions, 1118 flow [2022-11-16 12:33:16,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 490.3333333333333) internal successors, (1471), 3 states have internal predecessors, (1471), 0 states have call successors, (0), 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 12:33:16,425 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:16,425 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] [2022-11-16 12:33:16,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:33:16,426 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:16,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:16,426 INFO L85 PathProgramCache]: Analyzing trace with hash -968945318, now seen corresponding path program 1 times [2022-11-16 12:33:16,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:16,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275962763] [2022-11-16 12:33:16,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:16,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:16,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:16,481 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 12:33:16,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:16,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275962763] [2022-11-16 12:33:16,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275962763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:16,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:16,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:16,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717728335] [2022-11-16 12:33:16,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:16,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:16,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:16,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:16,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:16,486 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 549 out of 579 [2022-11-16 12:33:16,488 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 484 places, 467 transitions, 1118 flow. Second operand has 3 states, 3 states have (on average 550.6666666666666) internal successors, (1652), 3 states have internal predecessors, (1652), 0 states have call successors, (0), 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 12:33:16,489 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:16,489 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 549 of 579 [2022-11-16 12:33:16,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:19,903 INFO L130 PetriNetUnfolder]: 733/14256 cut-off events. [2022-11-16 12:33:19,903 INFO L131 PetriNetUnfolder]: For 439/534 co-relation queries the response was YES. [2022-11-16 12:33:20,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18010 conditions, 14256 events. 733/14256 cut-off events. For 439/534 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 186286 event pairs, 276 based on Foata normal form. 3/12708 useless extension candidates. Maximal degree in co-relation 13568. Up to 929 conditions per place. [2022-11-16 12:33:20,055 INFO L137 encePairwiseOnDemand]: 571/579 looper letters, 20 selfloop transitions, 4 changer transitions 0/470 dead transitions. [2022-11-16 12:33:20,055 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 470 transitions, 1175 flow [2022-11-16 12:33:20,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:20,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:20,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1675 transitions. [2022-11-16 12:33:20,060 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9643062751871042 [2022-11-16 12:33:20,060 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1675 transitions. [2022-11-16 12:33:20,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1675 transitions. [2022-11-16 12:33:20,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:20,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1675 transitions. [2022-11-16 12:33:20,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 558.3333333333334) internal successors, (1675), 3 states have internal predecessors, (1675), 0 states have call successors, (0), 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 12:33:20,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:20,069 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:20,069 INFO L175 Difference]: Start difference. First operand has 484 places, 467 transitions, 1118 flow. Second operand 3 states and 1675 transitions. [2022-11-16 12:33:20,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 470 transitions, 1175 flow [2022-11-16 12:33:20,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 470 transitions, 1160 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:33:20,089 INFO L231 Difference]: Finished difference. Result has 471 places, 467 transitions, 1123 flow [2022-11-16 12:33:20,090 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1095, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1123, PETRI_PLACES=471, PETRI_TRANSITIONS=467} [2022-11-16 12:33:20,091 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -80 predicate places. [2022-11-16 12:33:20,091 INFO L495 AbstractCegarLoop]: Abstraction has has 471 places, 467 transitions, 1123 flow [2022-11-16 12:33:20,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 550.6666666666666) internal successors, (1652), 3 states have internal predecessors, (1652), 0 states have call successors, (0), 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 12:33:20,092 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:20,092 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:20,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:33:20,093 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:20,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:20,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1393198253, now seen corresponding path program 1 times [2022-11-16 12:33:20,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:20,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682798665] [2022-11-16 12:33:20,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:20,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:20,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:20,189 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 12:33:20,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:20,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682798665] [2022-11-16 12:33:20,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682798665] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:20,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:20,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:20,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150037966] [2022-11-16 12:33:20,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:20,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:20,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:20,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:20,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:20,196 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 579 [2022-11-16 12:33:20,197 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 467 transitions, 1123 flow. Second operand has 3 states, 3 states have (on average 488.6666666666667) internal successors, (1466), 3 states have internal predecessors, (1466), 0 states have call successors, (0), 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 12:33:20,198 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:20,198 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 579 [2022-11-16 12:33:20,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:21,449 INFO L130 PetriNetUnfolder]: 615/4641 cut-off events. [2022-11-16 12:33:21,449 INFO L131 PetriNetUnfolder]: For 166/181 co-relation queries the response was YES. [2022-11-16 12:33:21,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7198 conditions, 4641 events. 615/4641 cut-off events. For 166/181 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 47100 event pairs, 478 based on Foata normal form. 0/4194 useless extension candidates. Maximal degree in co-relation 4895. Up to 1119 conditions per place. [2022-11-16 12:33:21,732 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 67 selfloop transitions, 2 changer transitions 0/469 dead transitions. [2022-11-16 12:33:21,733 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 469 transitions, 1268 flow [2022-11-16 12:33:21,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:21,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:21,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1521 transitions. [2022-11-16 12:33:21,751 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8756476683937824 [2022-11-16 12:33:21,752 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1521 transitions. [2022-11-16 12:33:21,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1521 transitions. [2022-11-16 12:33:21,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:21,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1521 transitions. [2022-11-16 12:33:21,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 507.0) internal successors, (1521), 3 states have internal predecessors, (1521), 0 states have call successors, (0), 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 12:33:21,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:21,762 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:21,762 INFO L175 Difference]: Start difference. First operand has 471 places, 467 transitions, 1123 flow. Second operand 3 states and 1521 transitions. [2022-11-16 12:33:21,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 469 transitions, 1268 flow [2022-11-16 12:33:21,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 469 transitions, 1268 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:33:21,775 INFO L231 Difference]: Finished difference. Result has 472 places, 466 transitions, 1125 flow [2022-11-16 12:33:21,776 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1121, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1125, PETRI_PLACES=472, PETRI_TRANSITIONS=466} [2022-11-16 12:33:21,777 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -79 predicate places. [2022-11-16 12:33:21,777 INFO L495 AbstractCegarLoop]: Abstraction has has 472 places, 466 transitions, 1125 flow [2022-11-16 12:33:21,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 488.6666666666667) internal successors, (1466), 3 states have internal predecessors, (1466), 0 states have call successors, (0), 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 12:33:21,778 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:21,779 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:21,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:33:21,779 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:21,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:21,780 INFO L85 PathProgramCache]: Analyzing trace with hash -436056440, now seen corresponding path program 1 times [2022-11-16 12:33:21,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:21,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127551037] [2022-11-16 12:33:21,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:21,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:21,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:21,881 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 12:33:21,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:21,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127551037] [2022-11-16 12:33:21,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127551037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:21,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:21,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:21,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796759861] [2022-11-16 12:33:21,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:21,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:21,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:21,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:21,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:21,892 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 579 [2022-11-16 12:33:21,894 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 466 transitions, 1125 flow. Second operand has 3 states, 3 states have (on average 492.0) internal successors, (1476), 3 states have internal predecessors, (1476), 0 states have call successors, (0), 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 12:33:21,894 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:21,894 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 579 [2022-11-16 12:33:21,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:23,935 INFO L130 PetriNetUnfolder]: 938/5324 cut-off events. [2022-11-16 12:33:23,935 INFO L131 PetriNetUnfolder]: For 439/460 co-relation queries the response was YES. [2022-11-16 12:33:23,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8885 conditions, 5324 events. 938/5324 cut-off events. For 439/460 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 56503 event pairs, 778 based on Foata normal form. 0/4844 useless extension candidates. Maximal degree in co-relation 8582. Up to 1864 conditions per place. [2022-11-16 12:33:24,023 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 65 selfloop transitions, 2 changer transitions 0/468 dead transitions. [2022-11-16 12:33:24,024 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 468 transitions, 1266 flow [2022-11-16 12:33:24,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:24,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:24,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1528 transitions. [2022-11-16 12:33:24,029 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8796776050662061 [2022-11-16 12:33:24,029 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1528 transitions. [2022-11-16 12:33:24,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1528 transitions. [2022-11-16 12:33:24,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:24,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1528 transitions. [2022-11-16 12:33:24,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 509.3333333333333) internal successors, (1528), 3 states have internal predecessors, (1528), 0 states have call successors, (0), 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 12:33:24,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:24,039 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:24,039 INFO L175 Difference]: Start difference. First operand has 472 places, 466 transitions, 1125 flow. Second operand 3 states and 1528 transitions. [2022-11-16 12:33:24,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 468 transitions, 1266 flow [2022-11-16 12:33:24,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 468 transitions, 1262 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:24,052 INFO L231 Difference]: Finished difference. Result has 471 places, 465 transitions, 1123 flow [2022-11-16 12:33:24,053 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1119, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=463, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1123, PETRI_PLACES=471, PETRI_TRANSITIONS=465} [2022-11-16 12:33:24,054 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -80 predicate places. [2022-11-16 12:33:24,054 INFO L495 AbstractCegarLoop]: Abstraction has has 471 places, 465 transitions, 1123 flow [2022-11-16 12:33:24,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 492.0) internal successors, (1476), 3 states have internal predecessors, (1476), 0 states have call successors, (0), 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 12:33:24,055 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:24,056 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:24,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:33:24,056 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:24,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:24,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1913186106, now seen corresponding path program 1 times [2022-11-16 12:33:24,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:24,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102148096] [2022-11-16 12:33:24,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:24,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:24,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:24,108 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 12:33:24,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:24,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102148096] [2022-11-16 12:33:24,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102148096] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:24,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:24,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:24,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660105223] [2022-11-16 12:33:24,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:24,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:24,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:24,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:24,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:24,114 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 579 [2022-11-16 12:33:24,116 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 465 transitions, 1123 flow. Second operand has 3 states, 3 states have (on average 490.6666666666667) internal successors, (1472), 3 states have internal predecessors, (1472), 0 states have call successors, (0), 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 12:33:24,116 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:24,116 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 579 [2022-11-16 12:33:24,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:25,507 INFO L130 PetriNetUnfolder]: 606/4608 cut-off events. [2022-11-16 12:33:25,507 INFO L131 PetriNetUnfolder]: For 178/193 co-relation queries the response was YES. [2022-11-16 12:33:25,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7160 conditions, 4608 events. 606/4608 cut-off events. For 178/193 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 46777 event pairs, 469 based on Foata normal form. 0/4185 useless extension candidates. Maximal degree in co-relation 6128. Up to 1098 conditions per place. [2022-11-16 12:33:25,590 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 66 selfloop transitions, 2 changer transitions 0/467 dead transitions. [2022-11-16 12:33:25,590 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 467 transitions, 1266 flow [2022-11-16 12:33:25,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:25,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:25,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1520 transitions. [2022-11-16 12:33:25,594 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8750719631548647 [2022-11-16 12:33:25,594 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1520 transitions. [2022-11-16 12:33:25,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1520 transitions. [2022-11-16 12:33:25,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:25,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1520 transitions. [2022-11-16 12:33:25,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 506.6666666666667) internal successors, (1520), 3 states have internal predecessors, (1520), 0 states have call successors, (0), 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 12:33:25,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:25,739 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:25,739 INFO L175 Difference]: Start difference. First operand has 471 places, 465 transitions, 1123 flow. Second operand 3 states and 1520 transitions. [2022-11-16 12:33:25,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 467 transitions, 1266 flow [2022-11-16 12:33:25,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 467 transitions, 1262 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:25,752 INFO L231 Difference]: Finished difference. Result has 470 places, 464 transitions, 1121 flow [2022-11-16 12:33:25,753 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1117, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1121, PETRI_PLACES=470, PETRI_TRANSITIONS=464} [2022-11-16 12:33:25,754 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -81 predicate places. [2022-11-16 12:33:25,754 INFO L495 AbstractCegarLoop]: Abstraction has has 470 places, 464 transitions, 1121 flow [2022-11-16 12:33:25,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 490.6666666666667) internal successors, (1472), 3 states have internal predecessors, (1472), 0 states have call successors, (0), 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 12:33:25,755 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:25,755 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:25,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:33:25,756 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:25,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:25,757 INFO L85 PathProgramCache]: Analyzing trace with hash 2026412724, now seen corresponding path program 1 times [2022-11-16 12:33:25,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:25,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752590249] [2022-11-16 12:33:25,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:25,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:25,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:25,828 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 12:33:25,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:25,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752590249] [2022-11-16 12:33:25,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752590249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:25,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:25,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:25,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747729126] [2022-11-16 12:33:25,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:25,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:25,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:25,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:25,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:25,834 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 579 [2022-11-16 12:33:25,836 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 464 transitions, 1121 flow. Second operand has 3 states, 3 states have (on average 488.6666666666667) internal successors, (1466), 3 states have internal predecessors, (1466), 0 states have call successors, (0), 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 12:33:25,836 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:25,836 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 579 [2022-11-16 12:33:25,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:27,652 INFO L130 PetriNetUnfolder]: 661/4530 cut-off events. [2022-11-16 12:33:27,652 INFO L131 PetriNetUnfolder]: For 461/485 co-relation queries the response was YES. [2022-11-16 12:33:27,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7237 conditions, 4530 events. 661/4530 cut-off events. For 461/485 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 46209 event pairs, 523 based on Foata normal form. 0/4109 useless extension candidates. Maximal degree in co-relation 6978. Up to 1459 conditions per place. [2022-11-16 12:33:27,739 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 68 selfloop transitions, 2 changer transitions 0/466 dead transitions. [2022-11-16 12:33:27,739 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 466 transitions, 1268 flow [2022-11-16 12:33:27,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:27,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:27,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1521 transitions. [2022-11-16 12:33:27,744 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8756476683937824 [2022-11-16 12:33:27,744 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1521 transitions. [2022-11-16 12:33:27,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1521 transitions. [2022-11-16 12:33:27,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:27,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1521 transitions. [2022-11-16 12:33:27,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 507.0) internal successors, (1521), 3 states have internal predecessors, (1521), 0 states have call successors, (0), 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 12:33:27,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:27,752 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:27,753 INFO L175 Difference]: Start difference. First operand has 470 places, 464 transitions, 1121 flow. Second operand 3 states and 1521 transitions. [2022-11-16 12:33:27,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 466 transitions, 1268 flow [2022-11-16 12:33:27,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 466 transitions, 1264 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:27,766 INFO L231 Difference]: Finished difference. Result has 469 places, 463 transitions, 1119 flow [2022-11-16 12:33:27,767 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1115, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1119, PETRI_PLACES=469, PETRI_TRANSITIONS=463} [2022-11-16 12:33:27,768 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -82 predicate places. [2022-11-16 12:33:27,768 INFO L495 AbstractCegarLoop]: Abstraction has has 469 places, 463 transitions, 1119 flow [2022-11-16 12:33:27,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 488.6666666666667) internal successors, (1466), 3 states have internal predecessors, (1466), 0 states have call successors, (0), 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 12:33:27,769 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:27,769 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:27,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:33:27,770 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:27,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:27,771 INFO L85 PathProgramCache]: Analyzing trace with hash -618502965, now seen corresponding path program 1 times [2022-11-16 12:33:27,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:27,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799491544] [2022-11-16 12:33:27,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:27,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:27,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:28,335 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 12:33:28,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:28,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799491544] [2022-11-16 12:33:28,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799491544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:28,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:28,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:33:28,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744314564] [2022-11-16 12:33:28,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:28,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:33:28,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:28,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:33:28,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:33:28,341 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 534 out of 579 [2022-11-16 12:33:28,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 469 places, 463 transitions, 1119 flow. Second operand has 6 states, 6 states have (on average 536.1666666666666) internal successors, (3217), 6 states have internal predecessors, (3217), 0 states have call successors, (0), 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 12:33:28,345 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:28,345 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 534 of 579 [2022-11-16 12:33:28,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:29,309 INFO L130 PetriNetUnfolder]: 88/2666 cut-off events. [2022-11-16 12:33:29,309 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-16 12:33:29,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3396 conditions, 2666 events. 88/2666 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 22226 event pairs, 8 based on Foata normal form. 0/2402 useless extension candidates. Maximal degree in co-relation 2570. Up to 108 conditions per place. [2022-11-16 12:33:29,369 INFO L137 encePairwiseOnDemand]: 574/579 looper letters, 30 selfloop transitions, 4 changer transitions 0/462 dead transitions. [2022-11-16 12:33:29,369 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 462 transitions, 1185 flow [2022-11-16 12:33:29,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:33:29,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:33:29,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3239 transitions. [2022-11-16 12:33:29,376 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9323546344271733 [2022-11-16 12:33:29,376 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3239 transitions. [2022-11-16 12:33:29,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3239 transitions. [2022-11-16 12:33:29,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:29,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3239 transitions. [2022-11-16 12:33:29,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 539.8333333333334) internal successors, (3239), 6 states have internal predecessors, (3239), 0 states have call successors, (0), 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 12:33:29,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 579.0) internal successors, (4053), 7 states have internal predecessors, (4053), 0 states have call successors, (0), 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 12:33:29,389 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 579.0) internal successors, (4053), 7 states have internal predecessors, (4053), 0 states have call successors, (0), 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 12:33:29,389 INFO L175 Difference]: Start difference. First operand has 469 places, 463 transitions, 1119 flow. Second operand 6 states and 3239 transitions. [2022-11-16 12:33:29,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 462 transitions, 1185 flow [2022-11-16 12:33:29,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 462 transitions, 1181 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:29,403 INFO L231 Difference]: Finished difference. Result has 471 places, 462 transitions, 1121 flow [2022-11-16 12:33:29,404 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1113, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1121, PETRI_PLACES=471, PETRI_TRANSITIONS=462} [2022-11-16 12:33:29,404 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -80 predicate places. [2022-11-16 12:33:29,405 INFO L495 AbstractCegarLoop]: Abstraction has has 471 places, 462 transitions, 1121 flow [2022-11-16 12:33:29,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 536.1666666666666) internal successors, (3217), 6 states have internal predecessors, (3217), 0 states have call successors, (0), 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 12:33:29,406 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:29,406 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:29,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 12:33:29,407 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:29,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:29,407 INFO L85 PathProgramCache]: Analyzing trace with hash -529676758, now seen corresponding path program 1 times [2022-11-16 12:33:29,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:29,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493699419] [2022-11-16 12:33:29,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:29,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:29,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:29,460 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 12:33:29,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:29,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493699419] [2022-11-16 12:33:29,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493699419] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:29,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:29,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:29,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988659051] [2022-11-16 12:33:29,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:29,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:29,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:29,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:29,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:29,465 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 579 [2022-11-16 12:33:29,467 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 462 transitions, 1121 flow. Second operand has 3 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 0 states have call successors, (0), 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 12:33:29,467 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:29,467 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 579 [2022-11-16 12:33:29,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:31,259 INFO L130 PetriNetUnfolder]: 923/5266 cut-off events. [2022-11-16 12:33:31,259 INFO L131 PetriNetUnfolder]: For 433/454 co-relation queries the response was YES. [2022-11-16 12:33:31,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8785 conditions, 5266 events. 923/5266 cut-off events. For 433/454 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 55609 event pairs, 763 based on Foata normal form. 0/4829 useless extension candidates. Maximal degree in co-relation 7448. Up to 1828 conditions per place. [2022-11-16 12:33:31,346 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 64 selfloop transitions, 2 changer transitions 0/464 dead transitions. [2022-11-16 12:33:31,346 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 464 transitions, 1260 flow [2022-11-16 12:33:31,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:31,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:31,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1527 transitions. [2022-11-16 12:33:31,350 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8791018998272885 [2022-11-16 12:33:31,350 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1527 transitions. [2022-11-16 12:33:31,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1527 transitions. [2022-11-16 12:33:31,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:31,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1527 transitions. [2022-11-16 12:33:31,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 509.0) internal successors, (1527), 3 states have internal predecessors, (1527), 0 states have call successors, (0), 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 12:33:31,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:31,358 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:31,359 INFO L175 Difference]: Start difference. First operand has 471 places, 462 transitions, 1121 flow. Second operand 3 states and 1527 transitions. [2022-11-16 12:33:31,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 464 transitions, 1260 flow [2022-11-16 12:33:31,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 464 transitions, 1253 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:33:31,370 INFO L231 Difference]: Finished difference. Result has 468 places, 461 transitions, 1116 flow [2022-11-16 12:33:31,371 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1112, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1116, PETRI_PLACES=468, PETRI_TRANSITIONS=461} [2022-11-16 12:33:31,371 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -83 predicate places. [2022-11-16 12:33:31,371 INFO L495 AbstractCegarLoop]: Abstraction has has 468 places, 461 transitions, 1116 flow [2022-11-16 12:33:31,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 0 states have call successors, (0), 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 12:33:31,372 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:31,372 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:31,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 12:33:31,373 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:31,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:31,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1898706215, now seen corresponding path program 1 times [2022-11-16 12:33:31,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:31,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216367907] [2022-11-16 12:33:31,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:31,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:31,425 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 12:33:31,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:31,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216367907] [2022-11-16 12:33:31,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216367907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:31,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:31,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:31,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805531447] [2022-11-16 12:33:31,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:31,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:31,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:31,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:31,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:31,429 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 579 [2022-11-16 12:33:31,431 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 461 transitions, 1116 flow. Second operand has 3 states, 3 states have (on average 492.6666666666667) internal successors, (1478), 3 states have internal predecessors, (1478), 0 states have call successors, (0), 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 12:33:31,431 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:31,431 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 579 [2022-11-16 12:33:31,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:32,596 INFO L130 PetriNetUnfolder]: 597/4558 cut-off events. [2022-11-16 12:33:32,596 INFO L131 PetriNetUnfolder]: For 178/193 co-relation queries the response was YES. [2022-11-16 12:33:32,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7083 conditions, 4558 events. 597/4558 cut-off events. For 178/193 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 46144 event pairs, 460 based on Foata normal form. 0/4176 useless extension candidates. Maximal degree in co-relation 6195. Up to 1077 conditions per place. [2022-11-16 12:33:32,671 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 65 selfloop transitions, 2 changer transitions 0/463 dead transitions. [2022-11-16 12:33:32,671 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 463 transitions, 1257 flow [2022-11-16 12:33:32,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:32,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:32,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1519 transitions. [2022-11-16 12:33:32,676 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.874496257915947 [2022-11-16 12:33:32,676 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1519 transitions. [2022-11-16 12:33:32,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1519 transitions. [2022-11-16 12:33:32,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:32,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1519 transitions. [2022-11-16 12:33:32,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 506.3333333333333) internal successors, (1519), 3 states have internal predecessors, (1519), 0 states have call successors, (0), 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 12:33:32,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:32,682 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:32,682 INFO L175 Difference]: Start difference. First operand has 468 places, 461 transitions, 1116 flow. Second operand 3 states and 1519 transitions. [2022-11-16 12:33:32,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 463 transitions, 1257 flow [2022-11-16 12:33:32,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 463 transitions, 1253 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:32,693 INFO L231 Difference]: Finished difference. Result has 467 places, 460 transitions, 1114 flow [2022-11-16 12:33:32,694 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1110, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1114, PETRI_PLACES=467, PETRI_TRANSITIONS=460} [2022-11-16 12:33:32,694 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -84 predicate places. [2022-11-16 12:33:32,694 INFO L495 AbstractCegarLoop]: Abstraction has has 467 places, 460 transitions, 1114 flow [2022-11-16 12:33:32,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 492.6666666666667) internal successors, (1478), 3 states have internal predecessors, (1478), 0 states have call successors, (0), 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 12:33:32,695 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:32,695 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:32,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 12:33:32,696 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread4Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:32,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:32,696 INFO L85 PathProgramCache]: Analyzing trace with hash 248372598, now seen corresponding path program 1 times [2022-11-16 12:33:32,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:32,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399756814] [2022-11-16 12:33:32,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:32,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:32,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:32,741 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 12:33:32,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:32,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399756814] [2022-11-16 12:33:32,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399756814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:32,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:32,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:32,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138124420] [2022-11-16 12:33:32,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:32,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:32,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:32,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:32,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:32,745 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 579 [2022-11-16 12:33:32,747 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 460 transitions, 1114 flow. Second operand has 3 states, 3 states have (on average 492.0) internal successors, (1476), 3 states have internal predecessors, (1476), 0 states have call successors, (0), 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 12:33:32,747 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:32,747 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 579 [2022-11-16 12:33:32,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:34,029 INFO L130 PetriNetUnfolder]: 428/3725 cut-off events. [2022-11-16 12:33:34,030 INFO L131 PetriNetUnfolder]: For 485/495 co-relation queries the response was YES. [2022-11-16 12:33:34,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5457 conditions, 3725 events. 428/3725 cut-off events. For 485/495 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 36289 event pairs, 318 based on Foata normal form. 0/3385 useless extension candidates. Maximal degree in co-relation 5242. Up to 943 conditions per place. [2022-11-16 12:33:34,103 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 65 selfloop transitions, 2 changer transitions 0/462 dead transitions. [2022-11-16 12:33:34,103 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 462 transitions, 1255 flow [2022-11-16 12:33:34,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:34,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:34,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1528 transitions. [2022-11-16 12:33:34,108 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8796776050662061 [2022-11-16 12:33:34,108 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1528 transitions. [2022-11-16 12:33:34,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1528 transitions. [2022-11-16 12:33:34,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:34,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1528 transitions. [2022-11-16 12:33:34,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 509.3333333333333) internal successors, (1528), 3 states have internal predecessors, (1528), 0 states have call successors, (0), 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 12:33:34,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:34,116 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:34,116 INFO L175 Difference]: Start difference. First operand has 467 places, 460 transitions, 1114 flow. Second operand 3 states and 1528 transitions. [2022-11-16 12:33:34,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 462 transitions, 1255 flow [2022-11-16 12:33:34,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 462 transitions, 1251 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:34,132 INFO L231 Difference]: Finished difference. Result has 466 places, 459 transitions, 1112 flow [2022-11-16 12:33:34,133 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1108, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1112, PETRI_PLACES=466, PETRI_TRANSITIONS=459} [2022-11-16 12:33:34,134 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -85 predicate places. [2022-11-16 12:33:34,134 INFO L495 AbstractCegarLoop]: Abstraction has has 466 places, 459 transitions, 1112 flow [2022-11-16 12:33:34,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 492.0) internal successors, (1476), 3 states have internal predecessors, (1476), 0 states have call successors, (0), 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 12:33:34,135 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:34,135 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:34,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 12:33:34,136 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:34,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:34,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1316684707, now seen corresponding path program 1 times [2022-11-16 12:33:34,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:34,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758519869] [2022-11-16 12:33:34,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:34,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:34,201 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 12:33:34,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:34,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758519869] [2022-11-16 12:33:34,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758519869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:34,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:34,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:34,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401089301] [2022-11-16 12:33:34,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:34,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:34,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:34,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:34,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:34,208 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 579 [2022-11-16 12:33:34,210 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 459 transitions, 1112 flow. Second operand has 3 states, 3 states have (on average 490.6666666666667) internal successors, (1472), 3 states have internal predecessors, (1472), 0 states have call successors, (0), 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 12:33:34,211 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:34,211 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 579 [2022-11-16 12:33:34,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:35,948 INFO L130 PetriNetUnfolder]: 651/4471 cut-off events. [2022-11-16 12:33:35,949 INFO L131 PetriNetUnfolder]: For 465/489 co-relation queries the response was YES. [2022-11-16 12:33:36,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7163 conditions, 4471 events. 651/4471 cut-off events. For 465/489 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 45313 event pairs, 513 based on Foata normal form. 0/4099 useless extension candidates. Maximal degree in co-relation 6276. Up to 1431 conditions per place. [2022-11-16 12:33:36,029 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 67 selfloop transitions, 2 changer transitions 0/461 dead transitions. [2022-11-16 12:33:36,030 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 461 transitions, 1257 flow [2022-11-16 12:33:36,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:36,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:36,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1520 transitions. [2022-11-16 12:33:36,034 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8750719631548647 [2022-11-16 12:33:36,035 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1520 transitions. [2022-11-16 12:33:36,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1520 transitions. [2022-11-16 12:33:36,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:36,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1520 transitions. [2022-11-16 12:33:36,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 506.6666666666667) internal successors, (1520), 3 states have internal predecessors, (1520), 0 states have call successors, (0), 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 12:33:36,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:36,038 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:36,038 INFO L175 Difference]: Start difference. First operand has 466 places, 459 transitions, 1112 flow. Second operand 3 states and 1520 transitions. [2022-11-16 12:33:36,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 461 transitions, 1257 flow [2022-11-16 12:33:36,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 461 transitions, 1253 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:36,049 INFO L231 Difference]: Finished difference. Result has 465 places, 458 transitions, 1110 flow [2022-11-16 12:33:36,050 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1106, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=458, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1110, PETRI_PLACES=465, PETRI_TRANSITIONS=458} [2022-11-16 12:33:36,050 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -86 predicate places. [2022-11-16 12:33:36,050 INFO L495 AbstractCegarLoop]: Abstraction has has 465 places, 458 transitions, 1110 flow [2022-11-16 12:33:36,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 490.6666666666667) internal successors, (1472), 3 states have internal predecessors, (1472), 0 states have call successors, (0), 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 12:33:36,051 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:36,051 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:36,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 12:33:36,051 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:36,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:36,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1977041196, now seen corresponding path program 1 times [2022-11-16 12:33:36,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:36,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583339262] [2022-11-16 12:33:36,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:36,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:36,090 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 12:33:36,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:36,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583339262] [2022-11-16 12:33:36,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583339262] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:36,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:36,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:36,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113517249] [2022-11-16 12:33:36,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:36,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:36,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:36,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:36,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:36,094 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 579 [2022-11-16 12:33:36,095 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 458 transitions, 1110 flow. Second operand has 3 states, 3 states have (on average 496.0) internal successors, (1488), 3 states have internal predecessors, (1488), 0 states have call successors, (0), 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 12:33:36,095 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:36,095 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 579 [2022-11-16 12:33:36,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:37,518 INFO L130 PetriNetUnfolder]: 908/5198 cut-off events. [2022-11-16 12:33:37,519 INFO L131 PetriNetUnfolder]: For 446/467 co-relation queries the response was YES. [2022-11-16 12:33:37,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8692 conditions, 5198 events. 908/5198 cut-off events. For 446/467 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 54536 event pairs, 748 based on Foata normal form. 0/4814 useless extension candidates. Maximal degree in co-relation 7579. Up to 1792 conditions per place. [2022-11-16 12:33:37,637 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 63 selfloop transitions, 2 changer transitions 0/460 dead transitions. [2022-11-16 12:33:37,637 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 460 transitions, 1247 flow [2022-11-16 12:33:37,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:37,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:37,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1526 transitions. [2022-11-16 12:33:37,640 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8785261945883708 [2022-11-16 12:33:37,640 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1526 transitions. [2022-11-16 12:33:37,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1526 transitions. [2022-11-16 12:33:37,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:37,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1526 transitions. [2022-11-16 12:33:37,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 508.6666666666667) internal successors, (1526), 3 states have internal predecessors, (1526), 0 states have call successors, (0), 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 12:33:37,644 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:37,645 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:37,645 INFO L175 Difference]: Start difference. First operand has 465 places, 458 transitions, 1110 flow. Second operand 3 states and 1526 transitions. [2022-11-16 12:33:37,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 460 transitions, 1247 flow [2022-11-16 12:33:37,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 460 transitions, 1243 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:37,657 INFO L231 Difference]: Finished difference. Result has 464 places, 457 transitions, 1108 flow [2022-11-16 12:33:37,658 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1104, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1108, PETRI_PLACES=464, PETRI_TRANSITIONS=457} [2022-11-16 12:33:37,659 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -87 predicate places. [2022-11-16 12:33:37,659 INFO L495 AbstractCegarLoop]: Abstraction has has 464 places, 457 transitions, 1108 flow [2022-11-16 12:33:37,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 496.0) internal successors, (1488), 3 states have internal predecessors, (1488), 0 states have call successors, (0), 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 12:33:37,660 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:37,660 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:37,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 12:33:37,660 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:37,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:37,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1248741326, now seen corresponding path program 1 times [2022-11-16 12:33:37,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:37,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916375639] [2022-11-16 12:33:37,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:37,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:37,723 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 12:33:37,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:37,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916375639] [2022-11-16 12:33:37,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916375639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:37,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:37,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:37,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966130639] [2022-11-16 12:33:37,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:37,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:37,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:37,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:37,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:37,728 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 579 [2022-11-16 12:33:37,729 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 457 transitions, 1108 flow. Second operand has 3 states, 3 states have (on average 494.6666666666667) internal successors, (1484), 3 states have internal predecessors, (1484), 0 states have call successors, (0), 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 12:33:37,729 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:37,730 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 579 [2022-11-16 12:33:37,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:39,048 INFO L130 PetriNetUnfolder]: 588/4501 cut-off events. [2022-11-16 12:33:39,048 INFO L131 PetriNetUnfolder]: For 178/193 co-relation queries the response was YES. [2022-11-16 12:33:39,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6996 conditions, 4501 events. 588/4501 cut-off events. For 178/193 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 45404 event pairs, 451 based on Foata normal form. 0/4167 useless extension candidates. Maximal degree in co-relation 6252. Up to 1056 conditions per place. [2022-11-16 12:33:39,142 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 64 selfloop transitions, 2 changer transitions 0/459 dead transitions. [2022-11-16 12:33:39,142 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 459 transitions, 1247 flow [2022-11-16 12:33:39,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:39,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:39,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1518 transitions. [2022-11-16 12:33:39,147 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8739205526770294 [2022-11-16 12:33:39,147 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1518 transitions. [2022-11-16 12:33:39,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1518 transitions. [2022-11-16 12:33:39,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:39,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1518 transitions. [2022-11-16 12:33:39,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 506.0) internal successors, (1518), 3 states have internal predecessors, (1518), 0 states have call successors, (0), 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 12:33:39,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:39,151 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:39,151 INFO L175 Difference]: Start difference. First operand has 464 places, 457 transitions, 1108 flow. Second operand 3 states and 1518 transitions. [2022-11-16 12:33:39,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 459 transitions, 1247 flow [2022-11-16 12:33:39,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 463 places, 459 transitions, 1243 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:39,163 INFO L231 Difference]: Finished difference. Result has 463 places, 456 transitions, 1106 flow [2022-11-16 12:33:39,164 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1102, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1106, PETRI_PLACES=463, PETRI_TRANSITIONS=456} [2022-11-16 12:33:39,164 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -88 predicate places. [2022-11-16 12:33:39,165 INFO L495 AbstractCegarLoop]: Abstraction has has 463 places, 456 transitions, 1106 flow [2022-11-16 12:33:39,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 494.6666666666667) internal successors, (1484), 3 states have internal predecessors, (1484), 0 states have call successors, (0), 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 12:33:39,165 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:39,165 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:39,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 12:33:39,166 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread4Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:39,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:39,167 INFO L85 PathProgramCache]: Analyzing trace with hash -86358854, now seen corresponding path program 1 times [2022-11-16 12:33:39,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:39,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799806643] [2022-11-16 12:33:39,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:39,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:39,212 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 12:33:39,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:39,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799806643] [2022-11-16 12:33:39,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799806643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:39,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:39,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:39,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979697513] [2022-11-16 12:33:39,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:39,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:39,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:39,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:39,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:39,217 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 579 [2022-11-16 12:33:39,218 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 456 transitions, 1106 flow. Second operand has 3 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 0 states have call successors, (0), 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 12:33:39,218 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:39,218 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 579 [2022-11-16 12:33:39,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:40,472 INFO L130 PetriNetUnfolder]: 422/3680 cut-off events. [2022-11-16 12:33:40,472 INFO L131 PetriNetUnfolder]: For 479/489 co-relation queries the response was YES. [2022-11-16 12:33:40,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5394 conditions, 3680 events. 422/3680 cut-off events. For 479/489 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 35648 event pairs, 312 based on Foata normal form. 0/3379 useless extension candidates. Maximal degree in co-relation 5215. Up to 925 conditions per place. [2022-11-16 12:33:40,516 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 64 selfloop transitions, 2 changer transitions 0/458 dead transitions. [2022-11-16 12:33:40,516 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 458 transitions, 1245 flow [2022-11-16 12:33:40,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:40,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:40,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1527 transitions. [2022-11-16 12:33:40,519 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8791018998272885 [2022-11-16 12:33:40,519 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1527 transitions. [2022-11-16 12:33:40,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1527 transitions. [2022-11-16 12:33:40,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:40,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1527 transitions. [2022-11-16 12:33:40,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 509.0) internal successors, (1527), 3 states have internal predecessors, (1527), 0 states have call successors, (0), 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 12:33:40,524 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:40,525 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:40,525 INFO L175 Difference]: Start difference. First operand has 463 places, 456 transitions, 1106 flow. Second operand 3 states and 1527 transitions. [2022-11-16 12:33:40,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 458 transitions, 1245 flow [2022-11-16 12:33:40,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 458 transitions, 1241 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:40,535 INFO L231 Difference]: Finished difference. Result has 462 places, 455 transitions, 1104 flow [2022-11-16 12:33:40,536 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1100, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1104, PETRI_PLACES=462, PETRI_TRANSITIONS=455} [2022-11-16 12:33:40,536 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -89 predicate places. [2022-11-16 12:33:40,537 INFO L495 AbstractCegarLoop]: Abstraction has has 462 places, 455 transitions, 1104 flow [2022-11-16 12:33:40,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 0 states have call successors, (0), 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 12:33:40,537 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:40,537 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:33:40,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 12:33:40,538 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:40,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:40,538 INFO L85 PathProgramCache]: Analyzing trace with hash -529219855, now seen corresponding path program 1 times [2022-11-16 12:33:40,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:40,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246993454] [2022-11-16 12:33:40,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:40,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:41,163 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 12:33:41,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:41,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246993454] [2022-11-16 12:33:41,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246993454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:41,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:41,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:33:41,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689841273] [2022-11-16 12:33:41,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:41,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:33:41,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:41,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:33:41,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:33:41,168 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 534 out of 579 [2022-11-16 12:33:41,171 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 455 transitions, 1104 flow. Second operand has 6 states, 6 states have (on average 537.1666666666666) internal successors, (3223), 6 states have internal predecessors, (3223), 0 states have call successors, (0), 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 12:33:41,172 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:41,172 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 534 of 579 [2022-11-16 12:33:41,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:42,021 INFO L130 PetriNetUnfolder]: 88/2615 cut-off events. [2022-11-16 12:33:42,021 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-16 12:33:42,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3337 conditions, 2615 events. 88/2615 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 21610 event pairs, 8 based on Foata normal form. 0/2402 useless extension candidates. Maximal degree in co-relation 2887. Up to 108 conditions per place. [2022-11-16 12:33:42,063 INFO L137 encePairwiseOnDemand]: 574/579 looper letters, 29 selfloop transitions, 4 changer transitions 0/454 dead transitions. [2022-11-16 12:33:42,063 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 454 transitions, 1168 flow [2022-11-16 12:33:42,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:33:42,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:33:42,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3238 transitions. [2022-11-16 12:33:42,071 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9320667818077144 [2022-11-16 12:33:42,072 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3238 transitions. [2022-11-16 12:33:42,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3238 transitions. [2022-11-16 12:33:42,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:42,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3238 transitions. [2022-11-16 12:33:42,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 539.6666666666666) internal successors, (3238), 6 states have internal predecessors, (3238), 0 states have call successors, (0), 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 12:33:42,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 579.0) internal successors, (4053), 7 states have internal predecessors, (4053), 0 states have call successors, (0), 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 12:33:42,079 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 579.0) internal successors, (4053), 7 states have internal predecessors, (4053), 0 states have call successors, (0), 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 12:33:42,079 INFO L175 Difference]: Start difference. First operand has 462 places, 455 transitions, 1104 flow. Second operand 6 states and 3238 transitions. [2022-11-16 12:33:42,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 454 transitions, 1168 flow [2022-11-16 12:33:42,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 454 transitions, 1164 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:42,087 INFO L231 Difference]: Finished difference. Result has 464 places, 454 transitions, 1106 flow [2022-11-16 12:33:42,088 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1098, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1106, PETRI_PLACES=464, PETRI_TRANSITIONS=454} [2022-11-16 12:33:42,088 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -87 predicate places. [2022-11-16 12:33:42,089 INFO L495 AbstractCegarLoop]: Abstraction has has 464 places, 454 transitions, 1106 flow [2022-11-16 12:33:42,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 537.1666666666666) internal successors, (3223), 6 states have internal predecessors, (3223), 0 states have call successors, (0), 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 12:33:42,090 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:42,090 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:42,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-16 12:33:42,090 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread3Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:42,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:42,091 INFO L85 PathProgramCache]: Analyzing trace with hash 106455776, now seen corresponding path program 1 times [2022-11-16 12:33:42,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:42,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448974324] [2022-11-16 12:33:42,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:42,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:42,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:42,137 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 12:33:42,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:42,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448974324] [2022-11-16 12:33:42,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448974324] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:42,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:42,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:42,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672258665] [2022-11-16 12:33:42,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:42,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:42,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:42,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:42,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:42,141 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 579 [2022-11-16 12:33:42,142 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 454 transitions, 1106 flow. Second operand has 3 states, 3 states have (on average 492.6666666666667) internal successors, (1478), 3 states have internal predecessors, (1478), 0 states have call successors, (0), 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 12:33:42,143 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:42,143 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 579 [2022-11-16 12:33:42,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:43,581 INFO L130 PetriNetUnfolder]: 641/4412 cut-off events. [2022-11-16 12:33:43,582 INFO L131 PetriNetUnfolder]: For 450/474 co-relation queries the response was YES. [2022-11-16 12:33:43,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7060 conditions, 4412 events. 641/4412 cut-off events. For 450/474 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 44727 event pairs, 503 based on Foata normal form. 0/4089 useless extension candidates. Maximal degree in co-relation 6298. Up to 1403 conditions per place. [2022-11-16 12:33:43,665 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 66 selfloop transitions, 2 changer transitions 0/456 dead transitions. [2022-11-16 12:33:43,665 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 456 transitions, 1249 flow [2022-11-16 12:33:43,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:43,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:43,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1519 transitions. [2022-11-16 12:33:43,671 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.874496257915947 [2022-11-16 12:33:43,671 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1519 transitions. [2022-11-16 12:33:43,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1519 transitions. [2022-11-16 12:33:43,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:43,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1519 transitions. [2022-11-16 12:33:43,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 506.3333333333333) internal successors, (1519), 3 states have internal predecessors, (1519), 0 states have call successors, (0), 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 12:33:43,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:43,676 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:43,676 INFO L175 Difference]: Start difference. First operand has 464 places, 454 transitions, 1106 flow. Second operand 3 states and 1519 transitions. [2022-11-16 12:33:43,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 456 transitions, 1249 flow [2022-11-16 12:33:43,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 456 transitions, 1242 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:33:43,685 INFO L231 Difference]: Finished difference. Result has 461 places, 453 transitions, 1101 flow [2022-11-16 12:33:43,686 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1097, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1101, PETRI_PLACES=461, PETRI_TRANSITIONS=453} [2022-11-16 12:33:43,686 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -90 predicate places. [2022-11-16 12:33:43,687 INFO L495 AbstractCegarLoop]: Abstraction has has 461 places, 453 transitions, 1101 flow [2022-11-16 12:33:43,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 492.6666666666667) internal successors, (1478), 3 states have internal predecessors, (1478), 0 states have call successors, (0), 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 12:33:43,687 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:43,687 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:43,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-16 12:33:43,688 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting thread2Err13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:43,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:43,688 INFO L85 PathProgramCache]: Analyzing trace with hash -239018122, now seen corresponding path program 1 times [2022-11-16 12:33:43,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:43,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923549174] [2022-11-16 12:33:43,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:43,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:43,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:43,738 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 12:33:43,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:43,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923549174] [2022-11-16 12:33:43,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923549174] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:43,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:43,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:43,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068973988] [2022-11-16 12:33:43,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:43,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:43,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:43,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:43,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:43,743 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 579 [2022-11-16 12:33:43,744 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 453 transitions, 1101 flow. Second operand has 3 states, 3 states have (on average 498.0) internal successors, (1494), 3 states have internal predecessors, (1494), 0 states have call successors, (0), 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 12:33:43,744 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:43,745 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 579 [2022-11-16 12:33:43,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:45,141 INFO L130 PetriNetUnfolder]: 893/5127 cut-off events. [2022-11-16 12:33:45,142 INFO L131 PetriNetUnfolder]: For 443/464 co-relation queries the response was YES. [2022-11-16 12:33:45,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8576 conditions, 5127 events. 893/5127 cut-off events. For 443/464 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 53454 event pairs, 733 based on Foata normal form. 0/4799 useless extension candidates. Maximal degree in co-relation 7655. Up to 1756 conditions per place. [2022-11-16 12:33:45,221 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 62 selfloop transitions, 2 changer transitions 0/455 dead transitions. [2022-11-16 12:33:45,221 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 455 transitions, 1236 flow [2022-11-16 12:33:45,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:45,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:45,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1525 transitions. [2022-11-16 12:33:45,225 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8779504893494531 [2022-11-16 12:33:45,226 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1525 transitions. [2022-11-16 12:33:45,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1525 transitions. [2022-11-16 12:33:45,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:45,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1525 transitions. [2022-11-16 12:33:45,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 508.3333333333333) internal successors, (1525), 3 states have internal predecessors, (1525), 0 states have call successors, (0), 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 12:33:45,229 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:45,230 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:45,230 INFO L175 Difference]: Start difference. First operand has 461 places, 453 transitions, 1101 flow. Second operand 3 states and 1525 transitions. [2022-11-16 12:33:45,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 455 transitions, 1236 flow [2022-11-16 12:33:45,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 455 transitions, 1232 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:45,237 INFO L231 Difference]: Finished difference. Result has 460 places, 452 transitions, 1099 flow [2022-11-16 12:33:45,238 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1095, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1099, PETRI_PLACES=460, PETRI_TRANSITIONS=452} [2022-11-16 12:33:45,238 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -91 predicate places. [2022-11-16 12:33:45,238 INFO L495 AbstractCegarLoop]: Abstraction has has 460 places, 452 transitions, 1099 flow [2022-11-16 12:33:45,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 498.0) internal successors, (1494), 3 states have internal predecessors, (1494), 0 states have call successors, (0), 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 12:33:45,239 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:45,239 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:45,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-16 12:33:45,240 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:45,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:45,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1004144379, now seen corresponding path program 1 times [2022-11-16 12:33:45,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:45,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314786472] [2022-11-16 12:33:45,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:45,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:45,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:45,291 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 12:33:45,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:45,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314786472] [2022-11-16 12:33:45,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314786472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:45,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:45,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:45,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342293279] [2022-11-16 12:33:45,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:45,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:45,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:45,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:45,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:45,297 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 579 [2022-11-16 12:33:45,298 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 452 transitions, 1099 flow. Second operand has 3 states, 3 states have (on average 496.6666666666667) internal successors, (1490), 3 states have internal predecessors, (1490), 0 states have call successors, (0), 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 12:33:45,298 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:45,298 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 579 [2022-11-16 12:33:45,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:46,488 INFO L130 PetriNetUnfolder]: 579/4441 cut-off events. [2022-11-16 12:33:46,488 INFO L131 PetriNetUnfolder]: For 178/193 co-relation queries the response was YES. [2022-11-16 12:33:46,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6909 conditions, 4441 events. 579/4441 cut-off events. For 178/193 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 44630 event pairs, 442 based on Foata normal form. 0/4158 useless extension candidates. Maximal degree in co-relation 6309. Up to 1035 conditions per place. [2022-11-16 12:33:46,642 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 63 selfloop transitions, 2 changer transitions 0/454 dead transitions. [2022-11-16 12:33:46,642 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 454 transitions, 1236 flow [2022-11-16 12:33:46,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:46,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:46,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1517 transitions. [2022-11-16 12:33:46,647 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8733448474381117 [2022-11-16 12:33:46,647 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1517 transitions. [2022-11-16 12:33:46,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1517 transitions. [2022-11-16 12:33:46,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:46,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1517 transitions. [2022-11-16 12:33:46,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 505.6666666666667) internal successors, (1517), 3 states have internal predecessors, (1517), 0 states have call successors, (0), 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 12:33:46,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:46,651 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:46,651 INFO L175 Difference]: Start difference. First operand has 460 places, 452 transitions, 1099 flow. Second operand 3 states and 1517 transitions. [2022-11-16 12:33:46,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 454 transitions, 1236 flow [2022-11-16 12:33:46,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 454 transitions, 1232 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:46,658 INFO L231 Difference]: Finished difference. Result has 459 places, 451 transitions, 1097 flow [2022-11-16 12:33:46,659 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1093, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1097, PETRI_PLACES=459, PETRI_TRANSITIONS=451} [2022-11-16 12:33:46,659 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -92 predicate places. [2022-11-16 12:33:46,659 INFO L495 AbstractCegarLoop]: Abstraction has has 459 places, 451 transitions, 1097 flow [2022-11-16 12:33:46,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 496.6666666666667) internal successors, (1490), 3 states have internal predecessors, (1490), 0 states have call successors, (0), 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 12:33:46,660 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:46,660 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:46,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-16 12:33:46,660 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting thread4Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:46,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:46,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1375026174, now seen corresponding path program 1 times [2022-11-16 12:33:46,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:46,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454119295] [2022-11-16 12:33:46,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:46,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:46,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:46,718 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 12:33:46,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:46,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454119295] [2022-11-16 12:33:46,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454119295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:46,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:46,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:46,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459117259] [2022-11-16 12:33:46,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:46,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:46,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:46,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:46,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:46,723 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 579 [2022-11-16 12:33:46,724 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 451 transitions, 1097 flow. Second operand has 3 states, 3 states have (on average 496.0) internal successors, (1488), 3 states have internal predecessors, (1488), 0 states have call successors, (0), 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 12:33:46,724 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:46,724 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 579 [2022-11-16 12:33:46,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:48,050 INFO L130 PetriNetUnfolder]: 416/3632 cut-off events. [2022-11-16 12:33:48,051 INFO L131 PetriNetUnfolder]: For 473/483 co-relation queries the response was YES. [2022-11-16 12:33:48,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5331 conditions, 3632 events. 416/3632 cut-off events. For 473/483 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 35090 event pairs, 306 based on Foata normal form. 0/3373 useless extension candidates. Maximal degree in co-relation 5188. Up to 907 conditions per place. [2022-11-16 12:33:48,130 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 63 selfloop transitions, 2 changer transitions 0/453 dead transitions. [2022-11-16 12:33:48,130 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 453 transitions, 1234 flow [2022-11-16 12:33:48,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:48,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:48,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1526 transitions. [2022-11-16 12:33:48,137 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8785261945883708 [2022-11-16 12:33:48,137 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1526 transitions. [2022-11-16 12:33:48,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1526 transitions. [2022-11-16 12:33:48,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:48,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1526 transitions. [2022-11-16 12:33:48,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 508.6666666666667) internal successors, (1526), 3 states have internal predecessors, (1526), 0 states have call successors, (0), 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 12:33:48,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:48,143 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:48,143 INFO L175 Difference]: Start difference. First operand has 459 places, 451 transitions, 1097 flow. Second operand 3 states and 1526 transitions. [2022-11-16 12:33:48,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 453 transitions, 1234 flow [2022-11-16 12:33:48,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 453 transitions, 1230 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:48,153 INFO L231 Difference]: Finished difference. Result has 458 places, 450 transitions, 1095 flow [2022-11-16 12:33:48,154 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1091, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=448, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1095, PETRI_PLACES=458, PETRI_TRANSITIONS=450} [2022-11-16 12:33:48,154 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -93 predicate places. [2022-11-16 12:33:48,155 INFO L495 AbstractCegarLoop]: Abstraction has has 458 places, 450 transitions, 1095 flow [2022-11-16 12:33:48,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 496.0) internal successors, (1488), 3 states have internal predecessors, (1488), 0 states have call successors, (0), 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 12:33:48,155 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:48,156 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:48,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-16 12:33:48,156 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting thread3Err13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:48,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:48,157 INFO L85 PathProgramCache]: Analyzing trace with hash 356751817, now seen corresponding path program 1 times [2022-11-16 12:33:48,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:48,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364056347] [2022-11-16 12:33:48,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:48,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:48,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:48,218 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 12:33:48,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:48,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364056347] [2022-11-16 12:33:48,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364056347] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:48,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:48,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:48,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109289881] [2022-11-16 12:33:48,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:48,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:48,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:48,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:48,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:48,223 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 579 [2022-11-16 12:33:48,225 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 450 transitions, 1095 flow. Second operand has 3 states, 3 states have (on average 494.6666666666667) internal successors, (1484), 3 states have internal predecessors, (1484), 0 states have call successors, (0), 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 12:33:48,226 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:48,226 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 579 [2022-11-16 12:33:48,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:49,930 INFO L130 PetriNetUnfolder]: 631/4356 cut-off events. [2022-11-16 12:33:49,930 INFO L131 PetriNetUnfolder]: For 457/481 co-relation queries the response was YES. [2022-11-16 12:33:49,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6983 conditions, 4356 events. 631/4356 cut-off events. For 457/481 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 43965 event pairs, 493 based on Foata normal form. 0/4079 useless extension candidates. Maximal degree in co-relation 6360. Up to 1375 conditions per place. [2022-11-16 12:33:50,025 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 65 selfloop transitions, 2 changer transitions 0/452 dead transitions. [2022-11-16 12:33:50,025 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 452 transitions, 1236 flow [2022-11-16 12:33:50,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:50,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:50,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1518 transitions. [2022-11-16 12:33:50,031 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8739205526770294 [2022-11-16 12:33:50,031 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1518 transitions. [2022-11-16 12:33:50,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1518 transitions. [2022-11-16 12:33:50,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:50,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1518 transitions. [2022-11-16 12:33:50,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 506.0) internal successors, (1518), 3 states have internal predecessors, (1518), 0 states have call successors, (0), 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 12:33:50,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:50,035 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:50,035 INFO L175 Difference]: Start difference. First operand has 458 places, 450 transitions, 1095 flow. Second operand 3 states and 1518 transitions. [2022-11-16 12:33:50,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 452 transitions, 1236 flow [2022-11-16 12:33:50,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 452 transitions, 1232 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:50,042 INFO L231 Difference]: Finished difference. Result has 457 places, 449 transitions, 1093 flow [2022-11-16 12:33:50,043 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1089, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1093, PETRI_PLACES=457, PETRI_TRANSITIONS=449} [2022-11-16 12:33:50,044 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -94 predicate places. [2022-11-16 12:33:50,044 INFO L495 AbstractCegarLoop]: Abstraction has has 457 places, 449 transitions, 1093 flow [2022-11-16 12:33:50,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 494.6666666666667) internal successors, (1484), 3 states have internal predecessors, (1484), 0 states have call successors, (0), 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 12:33:50,045 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:50,045 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:50,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-16 12:33:50,045 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting thread2Err16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:50,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:50,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1149415648, now seen corresponding path program 1 times [2022-11-16 12:33:50,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:50,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333836047] [2022-11-16 12:33:50,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:50,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:50,103 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 12:33:50,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:50,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333836047] [2022-11-16 12:33:50,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333836047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:50,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:50,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:50,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28803466] [2022-11-16 12:33:50,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:50,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:50,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:50,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:50,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:50,108 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 579 [2022-11-16 12:33:50,109 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 449 transitions, 1093 flow. Second operand has 3 states, 3 states have (on average 500.0) internal successors, (1500), 3 states have internal predecessors, (1500), 0 states have call successors, (0), 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 12:33:50,109 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:50,109 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 579 [2022-11-16 12:33:50,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:51,600 INFO L130 PetriNetUnfolder]: 878/5059 cut-off events. [2022-11-16 12:33:51,600 INFO L131 PetriNetUnfolder]: For 440/461 co-relation queries the response was YES. [2022-11-16 12:33:51,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8460 conditions, 5059 events. 878/5059 cut-off events. For 440/461 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 52371 event pairs, 718 based on Foata normal form. 0/4784 useless extension candidates. Maximal degree in co-relation 7731. Up to 1720 conditions per place. [2022-11-16 12:33:51,718 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 61 selfloop transitions, 2 changer transitions 0/451 dead transitions. [2022-11-16 12:33:51,718 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 451 transitions, 1226 flow [2022-11-16 12:33:51,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:51,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:51,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1524 transitions. [2022-11-16 12:33:51,724 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8773747841105354 [2022-11-16 12:33:51,724 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1524 transitions. [2022-11-16 12:33:51,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1524 transitions. [2022-11-16 12:33:51,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:51,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1524 transitions. [2022-11-16 12:33:51,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 508.0) internal successors, (1524), 3 states have internal predecessors, (1524), 0 states have call successors, (0), 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 12:33:51,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:51,731 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:51,731 INFO L175 Difference]: Start difference. First operand has 457 places, 449 transitions, 1093 flow. Second operand 3 states and 1524 transitions. [2022-11-16 12:33:51,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 451 transitions, 1226 flow [2022-11-16 12:33:51,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 451 transitions, 1222 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:51,744 INFO L231 Difference]: Finished difference. Result has 456 places, 448 transitions, 1091 flow [2022-11-16 12:33:51,744 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1087, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1091, PETRI_PLACES=456, PETRI_TRANSITIONS=448} [2022-11-16 12:33:51,745 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -95 predicate places. [2022-11-16 12:33:51,745 INFO L495 AbstractCegarLoop]: Abstraction has has 456 places, 448 transitions, 1091 flow [2022-11-16 12:33:51,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 500.0) internal successors, (1500), 3 states have internal predecessors, (1500), 0 states have call successors, (0), 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 12:33:51,746 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:51,746 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:51,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-16 12:33:51,747 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:51,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:51,747 INFO L85 PathProgramCache]: Analyzing trace with hash -122709443, now seen corresponding path program 1 times [2022-11-16 12:33:51,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:51,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855641767] [2022-11-16 12:33:51,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:51,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:51,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:52,295 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 12:33:52,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:52,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855641767] [2022-11-16 12:33:52,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855641767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:52,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:52,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:33:52,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168093006] [2022-11-16 12:33:52,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:52,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:33:52,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:52,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:33:52,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:33:52,303 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 534 out of 579 [2022-11-16 12:33:52,306 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 448 transitions, 1091 flow. Second operand has 6 states, 6 states have (on average 538.1666666666666) internal successors, (3229), 6 states have internal predecessors, (3229), 0 states have call successors, (0), 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 12:33:52,306 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:52,306 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 534 of 579 [2022-11-16 12:33:52,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:53,204 INFO L130 PetriNetUnfolder]: 88/2559 cut-off events. [2022-11-16 12:33:53,205 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-16 12:33:53,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3289 conditions, 2559 events. 88/2559 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 20893 event pairs, 8 based on Foata normal form. 0/2402 useless extension candidates. Maximal degree in co-relation 2915. Up to 108 conditions per place. [2022-11-16 12:33:53,247 INFO L137 encePairwiseOnDemand]: 574/579 looper letters, 28 selfloop transitions, 4 changer transitions 0/447 dead transitions. [2022-11-16 12:33:53,247 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 447 transitions, 1153 flow [2022-11-16 12:33:53,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:33:53,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:33:53,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3237 transitions. [2022-11-16 12:33:53,255 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9317789291882557 [2022-11-16 12:33:53,255 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3237 transitions. [2022-11-16 12:33:53,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3237 transitions. [2022-11-16 12:33:53,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:53,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3237 transitions. [2022-11-16 12:33:53,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 539.5) internal successors, (3237), 6 states have internal predecessors, (3237), 0 states have call successors, (0), 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 12:33:53,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 579.0) internal successors, (4053), 7 states have internal predecessors, (4053), 0 states have call successors, (0), 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 12:33:53,264 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 579.0) internal successors, (4053), 7 states have internal predecessors, (4053), 0 states have call successors, (0), 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 12:33:53,264 INFO L175 Difference]: Start difference. First operand has 456 places, 448 transitions, 1091 flow. Second operand 6 states and 3237 transitions. [2022-11-16 12:33:53,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 447 transitions, 1153 flow [2022-11-16 12:33:53,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 447 transitions, 1149 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:53,272 INFO L231 Difference]: Finished difference. Result has 458 places, 447 transitions, 1093 flow [2022-11-16 12:33:53,273 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1085, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=447, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1093, PETRI_PLACES=458, PETRI_TRANSITIONS=447} [2022-11-16 12:33:53,273 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -93 predicate places. [2022-11-16 12:33:53,273 INFO L495 AbstractCegarLoop]: Abstraction has has 458 places, 447 transitions, 1093 flow [2022-11-16 12:33:53,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 538.1666666666666) internal successors, (3229), 6 states have internal predecessors, (3229), 0 states have call successors, (0), 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 12:33:53,274 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:53,274 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:53,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-16 12:33:53,275 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting thread1Err19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:53,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:53,275 INFO L85 PathProgramCache]: Analyzing trace with hash -224858210, now seen corresponding path program 1 times [2022-11-16 12:33:53,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:53,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077600541] [2022-11-16 12:33:53,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:53,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:53,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:53,356 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 12:33:53,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:53,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077600541] [2022-11-16 12:33:53,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077600541] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:53,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:53,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:53,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209586983] [2022-11-16 12:33:53,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:53,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:53,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:53,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:53,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:53,361 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 579 [2022-11-16 12:33:53,362 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 447 transitions, 1093 flow. Second operand has 3 states, 3 states have (on average 498.6666666666667) internal successors, (1496), 3 states have internal predecessors, (1496), 0 states have call successors, (0), 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 12:33:53,363 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:53,363 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 579 [2022-11-16 12:33:53,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:54,829 INFO L130 PetriNetUnfolder]: 570/4381 cut-off events. [2022-11-16 12:33:54,829 INFO L131 PetriNetUnfolder]: For 166/181 co-relation queries the response was YES. [2022-11-16 12:33:54,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6807 conditions, 4381 events. 570/4381 cut-off events. For 166/181 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 43803 event pairs, 433 based on Foata normal form. 0/4149 useless extension candidates. Maximal degree in co-relation 6748. Up to 1014 conditions per place. [2022-11-16 12:33:54,924 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 62 selfloop transitions, 2 changer transitions 0/449 dead transitions. [2022-11-16 12:33:54,924 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 449 transitions, 1228 flow [2022-11-16 12:33:54,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:54,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:54,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1516 transitions. [2022-11-16 12:33:54,928 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.872769142199194 [2022-11-16 12:33:54,929 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1516 transitions. [2022-11-16 12:33:54,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1516 transitions. [2022-11-16 12:33:54,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:54,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1516 transitions. [2022-11-16 12:33:54,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 505.3333333333333) internal successors, (1516), 3 states have internal predecessors, (1516), 0 states have call successors, (0), 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 12:33:54,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:54,937 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:54,937 INFO L175 Difference]: Start difference. First operand has 458 places, 447 transitions, 1093 flow. Second operand 3 states and 1516 transitions. [2022-11-16 12:33:54,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 449 transitions, 1228 flow [2022-11-16 12:33:54,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 449 transitions, 1221 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:33:54,952 INFO L231 Difference]: Finished difference. Result has 455 places, 446 transitions, 1088 flow [2022-11-16 12:33:54,953 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1084, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1088, PETRI_PLACES=455, PETRI_TRANSITIONS=446} [2022-11-16 12:33:54,954 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -96 predicate places. [2022-11-16 12:33:54,954 INFO L495 AbstractCegarLoop]: Abstraction has has 455 places, 446 transitions, 1088 flow [2022-11-16 12:33:54,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 498.6666666666667) internal successors, (1496), 3 states have internal predecessors, (1496), 0 states have call successors, (0), 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 12:33:54,955 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:54,955 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:54,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-16 12:33:54,956 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting thread4Err13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:54,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:54,956 INFO L85 PathProgramCache]: Analyzing trace with hash 374861766, now seen corresponding path program 1 times [2022-11-16 12:33:54,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:54,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479646944] [2022-11-16 12:33:54,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:54,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:54,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:55,018 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 12:33:55,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:55,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479646944] [2022-11-16 12:33:55,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479646944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:55,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:55,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:55,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955880713] [2022-11-16 12:33:55,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:55,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:55,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:55,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:55,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:55,024 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 579 [2022-11-16 12:33:55,026 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 446 transitions, 1088 flow. Second operand has 3 states, 3 states have (on average 498.0) internal successors, (1494), 3 states have internal predecessors, (1494), 0 states have call successors, (0), 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 12:33:55,026 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:55,026 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 579 [2022-11-16 12:33:55,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:56,319 INFO L130 PetriNetUnfolder]: 410/3580 cut-off events. [2022-11-16 12:33:56,319 INFO L131 PetriNetUnfolder]: For 467/477 co-relation queries the response was YES. [2022-11-16 12:33:56,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5268 conditions, 3580 events. 410/3580 cut-off events. For 467/477 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 34431 event pairs, 300 based on Foata normal form. 0/3367 useless extension candidates. Maximal degree in co-relation 5161. Up to 889 conditions per place. [2022-11-16 12:33:56,391 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 62 selfloop transitions, 2 changer transitions 0/448 dead transitions. [2022-11-16 12:33:56,391 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 448 transitions, 1223 flow [2022-11-16 12:33:56,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:56,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:56,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1525 transitions. [2022-11-16 12:33:56,395 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8779504893494531 [2022-11-16 12:33:56,395 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1525 transitions. [2022-11-16 12:33:56,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1525 transitions. [2022-11-16 12:33:56,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:56,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1525 transitions. [2022-11-16 12:33:56,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 508.3333333333333) internal successors, (1525), 3 states have internal predecessors, (1525), 0 states have call successors, (0), 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 12:33:56,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:56,404 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:56,404 INFO L175 Difference]: Start difference. First operand has 455 places, 446 transitions, 1088 flow. Second operand 3 states and 1525 transitions. [2022-11-16 12:33:56,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 448 transitions, 1223 flow [2022-11-16 12:33:56,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 448 transitions, 1219 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:56,413 INFO L231 Difference]: Finished difference. Result has 454 places, 445 transitions, 1086 flow [2022-11-16 12:33:56,414 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1082, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1086, PETRI_PLACES=454, PETRI_TRANSITIONS=445} [2022-11-16 12:33:56,415 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -97 predicate places. [2022-11-16 12:33:56,415 INFO L495 AbstractCegarLoop]: Abstraction has has 454 places, 445 transitions, 1086 flow [2022-11-16 12:33:56,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 498.0) internal successors, (1494), 3 states have internal predecessors, (1494), 0 states have call successors, (0), 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 12:33:56,415 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:56,415 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:33:56,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-16 12:33:56,416 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting thread3Err16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:56,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:56,417 INFO L85 PathProgramCache]: Analyzing trace with hash -719056116, now seen corresponding path program 1 times [2022-11-16 12:33:56,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:56,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129075353] [2022-11-16 12:33:56,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:56,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:56,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:56,472 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 12:33:56,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:56,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129075353] [2022-11-16 12:33:56,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129075353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:56,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:56,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:56,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445698636] [2022-11-16 12:33:56,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:56,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:56,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:56,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:56,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:56,477 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 579 [2022-11-16 12:33:56,479 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 445 transitions, 1086 flow. Second operand has 3 states, 3 states have (on average 496.6666666666667) internal successors, (1490), 3 states have internal predecessors, (1490), 0 states have call successors, (0), 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 12:33:56,479 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:56,479 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 579 [2022-11-16 12:33:56,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:57,836 INFO L130 PetriNetUnfolder]: 621/4293 cut-off events. [2022-11-16 12:33:57,836 INFO L131 PetriNetUnfolder]: For 453/477 co-relation queries the response was YES. [2022-11-16 12:33:57,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6893 conditions, 4293 events. 621/4293 cut-off events. For 453/477 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 42989 event pairs, 483 based on Foata normal form. 0/4069 useless extension candidates. Maximal degree in co-relation 6402. Up to 1347 conditions per place. [2022-11-16 12:33:57,914 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 64 selfloop transitions, 2 changer transitions 0/447 dead transitions. [2022-11-16 12:33:57,914 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 447 transitions, 1225 flow [2022-11-16 12:33:57,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:57,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:57,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1517 transitions. [2022-11-16 12:33:57,917 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8733448474381117 [2022-11-16 12:33:57,917 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1517 transitions. [2022-11-16 12:33:57,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1517 transitions. [2022-11-16 12:33:57,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:57,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1517 transitions. [2022-11-16 12:33:57,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 505.6666666666667) internal successors, (1517), 3 states have internal predecessors, (1517), 0 states have call successors, (0), 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 12:33:57,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:57,920 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:57,920 INFO L175 Difference]: Start difference. First operand has 454 places, 445 transitions, 1086 flow. Second operand 3 states and 1517 transitions. [2022-11-16 12:33:57,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 447 transitions, 1225 flow [2022-11-16 12:33:57,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 447 transitions, 1221 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:57,926 INFO L231 Difference]: Finished difference. Result has 453 places, 444 transitions, 1084 flow [2022-11-16 12:33:57,926 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1080, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=444, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1084, PETRI_PLACES=453, PETRI_TRANSITIONS=444} [2022-11-16 12:33:57,926 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -98 predicate places. [2022-11-16 12:33:57,926 INFO L495 AbstractCegarLoop]: Abstraction has has 453 places, 444 transitions, 1084 flow [2022-11-16 12:33:57,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 496.6666666666667) internal successors, (1490), 3 states have internal predecessors, (1490), 0 states have call successors, (0), 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 12:33:57,927 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:57,927 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:57,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-16 12:33:57,927 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting thread2Err19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:57,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:57,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1748379454, now seen corresponding path program 1 times [2022-11-16 12:33:57,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:57,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172592651] [2022-11-16 12:33:57,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:57,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:57,971 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 12:33:57,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:57,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172592651] [2022-11-16 12:33:57,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172592651] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:57,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:57,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:57,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809136497] [2022-11-16 12:33:57,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:57,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:57,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:57,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:57,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:57,974 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 579 [2022-11-16 12:33:57,975 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 444 transitions, 1084 flow. Second operand has 3 states, 3 states have (on average 502.0) internal successors, (1506), 3 states have internal predecessors, (1506), 0 states have call successors, (0), 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 12:33:57,975 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:57,976 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 579 [2022-11-16 12:33:57,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:59,649 INFO L130 PetriNetUnfolder]: 863/4988 cut-off events. [2022-11-16 12:33:59,649 INFO L131 PetriNetUnfolder]: For 437/458 co-relation queries the response was YES. [2022-11-16 12:33:59,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8344 conditions, 4988 events. 863/4988 cut-off events. For 437/458 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 51154 event pairs, 703 based on Foata normal form. 0/4769 useless extension candidates. Maximal degree in co-relation 7807. Up to 1684 conditions per place. [2022-11-16 12:33:59,801 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 60 selfloop transitions, 2 changer transitions 0/446 dead transitions. [2022-11-16 12:33:59,801 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 446 transitions, 1215 flow [2022-11-16 12:33:59,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:59,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:59,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1523 transitions. [2022-11-16 12:33:59,805 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8767990788716177 [2022-11-16 12:33:59,805 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1523 transitions. [2022-11-16 12:33:59,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1523 transitions. [2022-11-16 12:33:59,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:59,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1523 transitions. [2022-11-16 12:33:59,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 507.6666666666667) internal successors, (1523), 3 states have internal predecessors, (1523), 0 states have call successors, (0), 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 12:33:59,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:59,812 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:33:59,812 INFO L175 Difference]: Start difference. First operand has 453 places, 444 transitions, 1084 flow. Second operand 3 states and 1523 transitions. [2022-11-16 12:33:59,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 446 transitions, 1215 flow [2022-11-16 12:33:59,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 446 transitions, 1211 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:59,826 INFO L231 Difference]: Finished difference. Result has 452 places, 443 transitions, 1082 flow [2022-11-16 12:33:59,826 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1078, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1082, PETRI_PLACES=452, PETRI_TRANSITIONS=443} [2022-11-16 12:33:59,827 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -99 predicate places. [2022-11-16 12:33:59,827 INFO L495 AbstractCegarLoop]: Abstraction has has 452 places, 443 transitions, 1082 flow [2022-11-16 12:33:59,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 502.0) internal successors, (1506), 3 states have internal predecessors, (1506), 0 states have call successors, (0), 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 12:33:59,828 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:59,828 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:59,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-16 12:33:59,829 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting thread1Err22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:33:59,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:59,829 INFO L85 PathProgramCache]: Analyzing trace with hash -659140815, now seen corresponding path program 1 times [2022-11-16 12:33:59,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:59,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629863678] [2022-11-16 12:33:59,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:59,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:59,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:59,879 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 12:33:59,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:59,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629863678] [2022-11-16 12:33:59,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629863678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:59,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:59,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:59,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090336804] [2022-11-16 12:33:59,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:59,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:59,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:59,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:59,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:59,883 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 579 [2022-11-16 12:33:59,885 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 443 transitions, 1082 flow. Second operand has 3 states, 3 states have (on average 500.6666666666667) internal successors, (1502), 3 states have internal predecessors, (1502), 0 states have call successors, (0), 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 12:33:59,885 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:59,885 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 579 [2022-11-16 12:33:59,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:34:01,341 INFO L130 PetriNetUnfolder]: 561/4324 cut-off events. [2022-11-16 12:34:01,342 INFO L131 PetriNetUnfolder]: For 178/193 co-relation queries the response was YES. [2022-11-16 12:34:01,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6735 conditions, 4324 events. 561/4324 cut-off events. For 178/193 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 43131 event pairs, 424 based on Foata normal form. 0/4140 useless extension candidates. Maximal degree in co-relation 6423. Up to 993 conditions per place. [2022-11-16 12:34:01,441 INFO L137 encePairwiseOnDemand]: 576/579 looper letters, 61 selfloop transitions, 2 changer transitions 0/445 dead transitions. [2022-11-16 12:34:01,441 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 445 transitions, 1215 flow [2022-11-16 12:34:01,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:34:01,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:34:01,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1515 transitions. [2022-11-16 12:34:01,444 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8721934369602763 [2022-11-16 12:34:01,445 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1515 transitions. [2022-11-16 12:34:01,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1515 transitions. [2022-11-16 12:34:01,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:34:01,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1515 transitions. [2022-11-16 12:34:01,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 505.0) internal successors, (1515), 3 states have internal predecessors, (1515), 0 states have call successors, (0), 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 12:34:01,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:34:01,452 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 579.0) internal successors, (2316), 4 states have internal predecessors, (2316), 0 states have call successors, (0), 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 12:34:01,453 INFO L175 Difference]: Start difference. First operand has 452 places, 443 transitions, 1082 flow. Second operand 3 states and 1515 transitions. [2022-11-16 12:34:01,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 445 transitions, 1215 flow [2022-11-16 12:34:01,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 445 transitions, 1211 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:34:01,465 INFO L231 Difference]: Finished difference. Result has 451 places, 442 transitions, 1080 flow [2022-11-16 12:34:01,465 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=579, PETRI_DIFFERENCE_MINUEND_FLOW=1076, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1080, PETRI_PLACES=451, PETRI_TRANSITIONS=442} [2022-11-16 12:34:01,466 INFO L288 CegarLoopForPetriNet]: 551 programPoint places, -100 predicate places. [2022-11-16 12:34:01,466 INFO L495 AbstractCegarLoop]: Abstraction has has 451 places, 442 transitions, 1080 flow [2022-11-16 12:34:01,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 500.6666666666667) internal successors, (1502), 3 states have internal predecessors, (1502), 0 states have call successors, (0), 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 12:34:01,467 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:34:01,467 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:34:01,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-16 12:34:01,468 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting thread4Err16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2022-11-16 12:34:01,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:34:01,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1956428430, now seen corresponding path program 1 times [2022-11-16 12:34:01,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:34:01,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878683342] [2022-11-16 12:34:01,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:34:01,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:34:01,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:34:01,529 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 12:34:01,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:34:01,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878683342] [2022-11-16 12:34:01,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878683342] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:34:01,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:34:01,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:34:01,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138996243] [2022-11-16 12:34:01,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:34:01,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:34:01,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:34:01,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:34:01,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:34:01,535 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 579 [2022-11-16 12:34:01,537 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 442 transitions, 1080 flow. Second operand has 3 states, 3 states have (on average 500.0) internal successors, (1500), 3 states have internal predecessors, (1500), 0 states have call successors, (0), 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 12:34:01,537 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:34:01,537 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 579 [2022-11-16 12:34:01,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand