./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a 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_e8643666-906b-4a78-b1ac-e7b011c63838/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8643666-906b-4a78-b1ac-e7b011c63838/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8643666-906b-4a78-b1ac-e7b011c63838/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8643666-906b-4a78-b1ac-e7b011c63838/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8643666-906b-4a78-b1ac-e7b011c63838/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8643666-906b-4a78-b1ac-e7b011c63838/bin/uautomizer-Dbtcem3rbc --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 79b55bbc1c83a113dd61cfbd1c59324170026eea9fc3fed8c2e488e492b32e33 --- 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-5e519f3 [2022-11-02 21:10:35,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:10:35,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:10:35,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:10:35,335 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:10:35,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:10:35,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:10:35,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:10:35,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:10:35,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:10:35,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:10:35,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:10:35,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:10:35,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:10:35,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:10:35,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:10:35,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:10:35,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:10:35,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:10:35,353 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:10:35,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:10:35,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:10:35,358 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:10:35,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:10:35,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:10:35,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:10:35,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:10:35,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:10:35,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:10:35,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:10:35,366 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:10:35,367 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:10:35,367 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:10:35,368 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:10:35,369 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:10:35,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:10:35,371 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:10:35,371 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:10:35,371 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:10:35,372 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:10:35,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:10:35,374 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8643666-906b-4a78-b1ac-e7b011c63838/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 21:10:35,397 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:10:35,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:10:35,397 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:10:35,398 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:10:35,398 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:10:35,398 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:10:35,399 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:10:35,399 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:10:35,400 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:10:35,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:10:35,400 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:10:35,400 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:10:35,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:10:35,401 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:10:35,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:10:35,401 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:10:35,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:10:35,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:10:35,402 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 21:10:35,402 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:10:35,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:10:35,402 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:10:35,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:10:35,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:10:35,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:10:35,403 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:10:35,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:10:35,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:10:35,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:10:35,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:10:35,404 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:10:35,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:10:35,405 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:10:35,405 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:10:35,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:10:35,405 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_e8643666-906b-4a78-b1ac-e7b011c63838/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8643666-906b-4a78-b1ac-e7b011c63838/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79b55bbc1c83a113dd61cfbd1c59324170026eea9fc3fed8c2e488e492b32e33 [2022-11-02 21:10:35,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:10:35,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:10:35,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:10:35,708 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:10:35,709 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:10:35,710 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8643666-906b-4a78-b1ac-e7b011c63838/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2022-11-02 21:10:35,778 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8643666-906b-4a78-b1ac-e7b011c63838/bin/uautomizer-Dbtcem3rbc/data/a5024d41a/7ba74267befa47e39771da64e5f7349f/FLAGae0eb95cb [2022-11-02 21:10:36,396 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:10:36,397 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8643666-906b-4a78-b1ac-e7b011c63838/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2022-11-02 21:10:36,417 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8643666-906b-4a78-b1ac-e7b011c63838/bin/uautomizer-Dbtcem3rbc/data/a5024d41a/7ba74267befa47e39771da64e5f7349f/FLAGae0eb95cb [2022-11-02 21:10:36,786 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8643666-906b-4a78-b1ac-e7b011c63838/bin/uautomizer-Dbtcem3rbc/data/a5024d41a/7ba74267befa47e39771da64e5f7349f [2022-11-02 21:10:36,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:10:36,790 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:10:36,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:10:36,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:10:36,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:10:36,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:10:36" (1/1) ... [2022-11-02 21:10:36,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a2735fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:36, skipping insertion in model container [2022-11-02 21:10:36,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:10:36" (1/1) ... [2022-11-02 21:10:36,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:10:36,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:10:37,655 WARN L230 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_e8643666-906b-4a78-b1ac-e7b011c63838/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i[76084,76097] [2022-11-02 21:10:37,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:10:37,716 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:10:37,796 WARN L230 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_e8643666-906b-4a78-b1ac-e7b011c63838/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i[76084,76097] [2022-11-02 21:10:37,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:10:37,996 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:10:37,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:37 WrapperNode [2022-11-02 21:10:37,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:10:37,998 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:10:37,999 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:10:37,999 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:10:38,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:37" (1/1) ... [2022-11-02 21:10:38,036 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:37" (1/1) ... [2022-11-02 21:10:38,073 INFO L138 Inliner]: procedures = 482, calls = 46, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 206 [2022-11-02 21:10:38,081 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:10:38,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:10:38,082 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:10:38,082 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:10:38,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:37" (1/1) ... [2022-11-02 21:10:38,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:37" (1/1) ... [2022-11-02 21:10:38,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:37" (1/1) ... [2022-11-02 21:10:38,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:37" (1/1) ... [2022-11-02 21:10:38,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:37" (1/1) ... [2022-11-02 21:10:38,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:37" (1/1) ... [2022-11-02 21:10:38,131 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:37" (1/1) ... [2022-11-02 21:10:38,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:37" (1/1) ... [2022-11-02 21:10:38,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:10:38,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:10:38,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:10:38,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:10:38,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:37" (1/1) ... [2022-11-02 21:10:38,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:10:38,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8643666-906b-4a78-b1ac-e7b011c63838/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:10:38,196 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8643666-906b-4a78-b1ac-e7b011c63838/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:10:38,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8643666-906b-4a78-b1ac-e7b011c63838/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:10:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:10:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:10:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 21:10:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:10:38,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 21:10:38,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:10:38,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:10:38,254 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-02 21:10:38,254 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-02 21:10:38,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:10:38,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:10:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:10:38,256 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 21:10:38,692 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:10:38,694 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:10:39,277 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:10:39,286 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:10:39,286 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 21:10:39,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:10:39 BoogieIcfgContainer [2022-11-02 21:10:39,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:10:39,291 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:10:39,291 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:10:39,295 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:10:39,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:10:36" (1/3) ... [2022-11-02 21:10:39,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9c5f32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:10:39, skipping insertion in model container [2022-11-02 21:10:39,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:37" (2/3) ... [2022-11-02 21:10:39,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9c5f32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:10:39, skipping insertion in model container [2022-11-02 21:10:39,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:10:39" (3/3) ... [2022-11-02 21:10:39,298 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2022-11-02 21:10:39,306 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 21:10:39,317 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:10:39,317 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-11-02 21:10:39,317 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 21:10:39,393 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-02 21:10:39,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 321 places, 323 transitions, 662 flow [2022-11-02 21:10:39,612 INFO L130 PetriNetUnfolder]: 10/400 cut-off events. [2022-11-02 21:10:39,618 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 21:10:39,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 409 conditions, 400 events. 10/400 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 828 event pairs, 0 based on Foata normal form. 0/362 useless extension candidates. Maximal degree in co-relation 229. Up to 4 conditions per place. [2022-11-02 21:10:39,627 INFO L82 GeneralOperation]: Start removeDead. Operand has 321 places, 323 transitions, 662 flow [2022-11-02 21:10:39,642 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 319 places, 320 transitions, 652 flow [2022-11-02 21:10:39,664 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:10:39,674 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;@dd8055b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:10:39,675 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-11-02 21:10:39,691 INFO L130 PetriNetUnfolder]: 0/42 cut-off events. [2022-11-02 21:10:39,691 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:10:39,692 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:10:39,692 INFO L208 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] [2022-11-02 21:10:39,693 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-02 21:10:39,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:39,701 INFO L85 PathProgramCache]: Analyzing trace with hash 32690800, now seen corresponding path program 1 times [2022-11-02 21:10:39,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:39,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550171020] [2022-11-02 21:10:39,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:39,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:40,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:40,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:40,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550171020] [2022-11-02 21:10:40,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550171020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:40,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:40,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:10:40,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570867897] [2022-11-02 21:10:40,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:40,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:10:40,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:40,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:10:40,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:10:40,757 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 323 [2022-11-02 21:10:40,774 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 320 transitions, 652 flow. Second operand has 6 states, 6 states have (on average 190.66666666666666) internal successors, (1144), 6 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:40,777 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:10:40,777 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 323 [2022-11-02 21:10:40,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:10:50,447 INFO L130 PetriNetUnfolder]: 20989/45125 cut-off events. [2022-11-02 21:10:50,447 INFO L131 PetriNetUnfolder]: For 80/85 co-relation queries the response was YES. [2022-11-02 21:10:50,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77596 conditions, 45125 events. 20989/45125 cut-off events. For 80/85 co-relation queries the response was YES. Maximal size of possible extension queue 1057. Compared 451758 event pairs, 20988 based on Foata normal form. 612/39455 useless extension candidates. Maximal degree in co-relation 76698. Up to 32403 conditions per place. [2022-11-02 21:10:50,921 INFO L137 encePairwiseOnDemand]: 311/323 looper letters, 116 selfloop transitions, 5 changer transitions 4/307 dead transitions. [2022-11-02 21:10:50,922 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 307 transitions, 868 flow [2022-11-02 21:10:50,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:10:50,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:10:50,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1262 transitions. [2022-11-02 21:10:50,940 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.651186790505676 [2022-11-02 21:10:50,941 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1262 transitions. [2022-11-02 21:10:50,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1262 transitions. [2022-11-02 21:10:50,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:10:50,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1262 transitions. [2022-11-02 21:10:50,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.33333333333334) internal successors, (1262), 6 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:50,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 323.0) internal successors, (2261), 7 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:50,965 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 323.0) internal successors, (2261), 7 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:50,967 INFO L175 Difference]: Start difference. First operand has 319 places, 320 transitions, 652 flow. Second operand 6 states and 1262 transitions. [2022-11-02 21:10:50,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 307 transitions, 868 flow [2022-11-02 21:10:50,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 307 transitions, 860 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 21:10:50,987 INFO L231 Difference]: Finished difference. Result has 313 places, 303 transitions, 620 flow [2022-11-02 21:10:50,989 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=620, PETRI_PLACES=313, PETRI_TRANSITIONS=303} [2022-11-02 21:10:50,993 INFO L287 CegarLoopForPetriNet]: 319 programPoint places, -6 predicate places. [2022-11-02 21:10:50,993 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 303 transitions, 620 flow [2022-11-02 21:10:50,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 190.66666666666666) internal successors, (1144), 6 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:50,994 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:10:50,995 INFO L208 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] [2022-11-02 21:10:50,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:10:50,995 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-02 21:10:50,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:50,996 INFO L85 PathProgramCache]: Analyzing trace with hash 696272735, now seen corresponding path program 1 times [2022-11-02 21:10:50,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:50,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892133208] [2022-11-02 21:10:50,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:50,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:51,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:51,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:51,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:51,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892133208] [2022-11-02 21:10:51,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892133208] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:51,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:51,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:10:51,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541094471] [2022-11-02 21:10:51,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:51,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:10:51,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:51,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:10:51,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:10:51,480 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 323 [2022-11-02 21:10:51,482 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 303 transitions, 620 flow. Second operand has 6 states, 6 states have (on average 191.66666666666666) internal successors, (1150), 6 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:51,482 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:10:51,482 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 323 [2022-11-02 21:10:51,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:10:59,228 INFO L130 PetriNetUnfolder]: 20989/45120 cut-off events. [2022-11-02 21:10:59,228 INFO L131 PetriNetUnfolder]: For 21/26 co-relation queries the response was YES. [2022-11-02 21:10:59,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77554 conditions, 45120 events. 20989/45120 cut-off events. For 21/26 co-relation queries the response was YES. Maximal size of possible extension queue 1049. Compared 451089 event pairs, 20988 based on Foata normal form. 0/38843 useless extension candidates. Maximal degree in co-relation 77493. Up to 32402 conditions per place. [2022-11-02 21:10:59,470 INFO L137 encePairwiseOnDemand]: 317/323 looper letters, 115 selfloop transitions, 5 changer transitions 0/302 dead transitions. [2022-11-02 21:10:59,470 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 302 transitions, 858 flow [2022-11-02 21:10:59,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:10:59,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:10:59,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1255 transitions. [2022-11-02 21:10:59,474 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6475748194014448 [2022-11-02 21:10:59,475 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1255 transitions. [2022-11-02 21:10:59,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1255 transitions. [2022-11-02 21:10:59,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:10:59,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1255 transitions. [2022-11-02 21:10:59,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 209.16666666666666) internal successors, (1255), 6 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:59,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 323.0) internal successors, (2261), 7 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:59,485 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 323.0) internal successors, (2261), 7 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:59,486 INFO L175 Difference]: Start difference. First operand has 313 places, 303 transitions, 620 flow. Second operand 6 states and 1255 transitions. [2022-11-02 21:10:59,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 302 transitions, 858 flow [2022-11-02 21:10:59,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 302 transitions, 848 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 21:10:59,497 INFO L231 Difference]: Finished difference. Result has 308 places, 302 transitions, 618 flow [2022-11-02 21:10:59,498 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=618, PETRI_PLACES=308, PETRI_TRANSITIONS=302} [2022-11-02 21:10:59,499 INFO L287 CegarLoopForPetriNet]: 319 programPoint places, -11 predicate places. [2022-11-02 21:10:59,499 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 302 transitions, 618 flow [2022-11-02 21:10:59,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 191.66666666666666) internal successors, (1150), 6 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:59,501 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:10:59,501 INFO L208 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] [2022-11-02 21:10:59,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:10:59,502 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-02 21:10:59,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:59,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1775371588, now seen corresponding path program 1 times [2022-11-02 21:10:59,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:59,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677129403] [2022-11-02 21:10:59,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:59,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:00,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:00,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:00,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677129403] [2022-11-02 21:11:00,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677129403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:00,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:00,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:11:00,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239601049] [2022-11-02 21:11:00,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:00,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:11:00,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:00,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:11:00,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:11:00,027 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 323 [2022-11-02 21:11:00,028 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 302 transitions, 618 flow. Second operand has 6 states, 6 states have (on average 194.5) internal successors, (1167), 6 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:00,029 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:11:00,029 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 323 [2022-11-02 21:11:00,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:11:07,227 INFO L130 PetriNetUnfolder]: 20989/44620 cut-off events. [2022-11-02 21:11:07,227 INFO L131 PetriNetUnfolder]: For 21/26 co-relation queries the response was YES. [2022-11-02 21:11:07,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77052 conditions, 44620 events. 20989/44620 cut-off events. For 21/26 co-relation queries the response was YES. Maximal size of possible extension queue 1050. Compared 443927 event pairs, 18324 based on Foata normal form. 0/38444 useless extension candidates. Maximal degree in co-relation 76977. Up to 32378 conditions per place. [2022-11-02 21:11:07,779 INFO L137 encePairwiseOnDemand]: 315/323 looper letters, 120 selfloop transitions, 7 changer transitions 0/311 dead transitions. [2022-11-02 21:11:07,779 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 311 transitions, 891 flow [2022-11-02 21:11:07,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:11:07,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:11:07,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1274 transitions. [2022-11-02 21:11:07,783 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6573787409700722 [2022-11-02 21:11:07,783 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1274 transitions. [2022-11-02 21:11:07,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1274 transitions. [2022-11-02 21:11:07,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:11:07,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1274 transitions. [2022-11-02 21:11:07,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 212.33333333333334) internal successors, (1274), 6 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:07,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 323.0) internal successors, (2261), 7 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:07,795 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 323.0) internal successors, (2261), 7 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:07,795 INFO L175 Difference]: Start difference. First operand has 308 places, 302 transitions, 618 flow. Second operand 6 states and 1274 transitions. [2022-11-02 21:11:07,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 311 transitions, 891 flow [2022-11-02 21:11:07,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 311 transitions, 881 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 21:11:07,803 INFO L231 Difference]: Finished difference. Result has 308 places, 304 transitions, 636 flow [2022-11-02 21:11:07,803 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=636, PETRI_PLACES=308, PETRI_TRANSITIONS=304} [2022-11-02 21:11:07,806 INFO L287 CegarLoopForPetriNet]: 319 programPoint places, -11 predicate places. [2022-11-02 21:11:07,806 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 304 transitions, 636 flow [2022-11-02 21:11:07,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 194.5) internal successors, (1167), 6 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:07,807 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:11:07,807 INFO L208 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] [2022-11-02 21:11:07,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:11:07,808 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-02 21:11:07,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:07,809 INFO L85 PathProgramCache]: Analyzing trace with hash 279398854, now seen corresponding path program 1 times [2022-11-02 21:11:07,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:07,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220443564] [2022-11-02 21:11:07,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:07,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:07,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:08,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:08,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:08,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220443564] [2022-11-02 21:11:08,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220443564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:08,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:08,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:11:08,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741022854] [2022-11-02 21:11:08,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:08,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:11:08,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:08,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:11:08,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:11:08,299 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 323 [2022-11-02 21:11:08,301 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 304 transitions, 636 flow. Second operand has 6 states, 6 states have (on average 195.5) internal successors, (1173), 6 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:08,301 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:11:08,302 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 323 [2022-11-02 21:11:08,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:11:15,119 INFO L130 PetriNetUnfolder]: 20989/44619 cut-off events. [2022-11-02 21:11:15,119 INFO L131 PetriNetUnfolder]: For 1526/1541 co-relation queries the response was YES. [2022-11-02 21:11:15,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78616 conditions, 44619 events. 20989/44619 cut-off events. For 1526/1541 co-relation queries the response was YES. Maximal size of possible extension queue 1050. Compared 444060 event pairs, 18324 based on Foata normal form. 2/38446 useless extension candidates. Maximal degree in co-relation 60655. Up to 32384 conditions per place. [2022-11-02 21:11:15,333 INFO L137 encePairwiseOnDemand]: 315/323 looper letters, 119 selfloop transitions, 7 changer transitions 0/310 dead transitions. [2022-11-02 21:11:15,333 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 310 transitions, 901 flow [2022-11-02 21:11:15,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:11:15,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:11:15,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1273 transitions. [2022-11-02 21:11:15,341 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6568627450980392 [2022-11-02 21:11:15,342 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1273 transitions. [2022-11-02 21:11:15,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1273 transitions. [2022-11-02 21:11:15,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:11:15,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1273 transitions. [2022-11-02 21:11:15,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 212.16666666666666) internal successors, (1273), 6 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:15,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 323.0) internal successors, (2261), 7 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:15,358 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 323.0) internal successors, (2261), 7 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:15,358 INFO L175 Difference]: Start difference. First operand has 308 places, 304 transitions, 636 flow. Second operand 6 states and 1273 transitions. [2022-11-02 21:11:15,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 310 transitions, 901 flow [2022-11-02 21:11:15,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 310 transitions, 891 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 21:11:15,365 INFO L231 Difference]: Finished difference. Result has 308 places, 303 transitions, 638 flow [2022-11-02 21:11:15,365 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=638, PETRI_PLACES=308, PETRI_TRANSITIONS=303} [2022-11-02 21:11:15,367 INFO L287 CegarLoopForPetriNet]: 319 programPoint places, -11 predicate places. [2022-11-02 21:11:15,369 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 303 transitions, 638 flow [2022-11-02 21:11:15,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 195.5) internal successors, (1173), 6 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:15,370 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:11:15,371 INFO L208 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] [2022-11-02 21:11:15,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:11:15,371 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-02 21:11:15,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:15,372 INFO L85 PathProgramCache]: Analyzing trace with hash -636362002, now seen corresponding path program 1 times [2022-11-02 21:11:15,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:15,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472278768] [2022-11-02 21:11:15,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:15,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:15,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:15,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:15,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:15,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472278768] [2022-11-02 21:11:15,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472278768] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:15,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:15,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:11:15,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30812239] [2022-11-02 21:11:15,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:15,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:11:15,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:15,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:11:15,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:11:15,511 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 323 [2022-11-02 21:11:15,512 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 303 transitions, 638 flow. Second operand has 3 states, 3 states have (on average 296.3333333333333) internal successors, (889), 3 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:15,512 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:11:15,512 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 323 [2022-11-02 21:11:15,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:11:15,658 INFO L130 PetriNetUnfolder]: 25/842 cut-off events. [2022-11-02 21:11:15,658 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-02 21:11:15,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 938 conditions, 842 events. 25/842 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4347 event pairs, 16 based on Foata normal form. 0/754 useless extension candidates. Maximal degree in co-relation 337. Up to 44 conditions per place. [2022-11-02 21:11:15,667 INFO L137 encePairwiseOnDemand]: 320/323 looper letters, 13 selfloop transitions, 2 changer transitions 0/302 dead transitions. [2022-11-02 21:11:15,667 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 302 transitions, 666 flow [2022-11-02 21:11:15,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:11:15,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:11:15,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 901 transitions. [2022-11-02 21:11:15,670 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9298245614035088 [2022-11-02 21:11:15,670 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 901 transitions. [2022-11-02 21:11:15,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 901 transitions. [2022-11-02 21:11:15,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:11:15,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 901 transitions. [2022-11-02 21:11:15,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:15,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 323.0) internal successors, (1292), 4 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:15,676 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 323.0) internal successors, (1292), 4 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:15,676 INFO L175 Difference]: Start difference. First operand has 308 places, 303 transitions, 638 flow. Second operand 3 states and 901 transitions. [2022-11-02 21:11:15,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 302 transitions, 666 flow [2022-11-02 21:11:15,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 302 transitions, 652 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 21:11:15,682 INFO L231 Difference]: Finished difference. Result has 304 places, 302 transitions, 626 flow [2022-11-02 21:11:15,683 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=622, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=626, PETRI_PLACES=304, PETRI_TRANSITIONS=302} [2022-11-02 21:11:15,685 INFO L287 CegarLoopForPetriNet]: 319 programPoint places, -15 predicate places. [2022-11-02 21:11:15,685 INFO L495 AbstractCegarLoop]: Abstraction has has 304 places, 302 transitions, 626 flow [2022-11-02 21:11:15,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 296.3333333333333) internal successors, (889), 3 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:15,686 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:11:15,686 INFO L208 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] [2022-11-02 21:11:15,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:11:15,687 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-02 21:11:15,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:15,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1240258334, now seen corresponding path program 1 times [2022-11-02 21:11:15,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:15,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897477718] [2022-11-02 21:11:15,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:15,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:15,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:15,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:15,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897477718] [2022-11-02 21:11:15,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897477718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:15,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:15,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:11:15,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385244914] [2022-11-02 21:11:15,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:15,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:11:15,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:15,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:11:15,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:11:15,784 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 323 [2022-11-02 21:11:15,785 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 302 transitions, 626 flow. Second operand has 3 states, 3 states have (on average 299.6666666666667) internal successors, (899), 3 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:15,785 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:11:15,785 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 323 [2022-11-02 21:11:15,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:11:15,925 INFO L130 PetriNetUnfolder]: 16/896 cut-off events. [2022-11-02 21:11:15,926 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-02 21:11:15,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 959 conditions, 896 events. 16/896 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4272 event pairs, 6 based on Foata normal form. 0/811 useless extension candidates. Maximal degree in co-relation 785. Up to 27 conditions per place. [2022-11-02 21:11:15,936 INFO L137 encePairwiseOnDemand]: 319/323 looper letters, 11 selfloop transitions, 2 changer transitions 0/303 dead transitions. [2022-11-02 21:11:15,936 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 303 transitions, 655 flow [2022-11-02 21:11:15,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:11:15,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:11:15,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 909 transitions. [2022-11-02 21:11:15,939 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9380804953560371 [2022-11-02 21:11:15,939 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 909 transitions. [2022-11-02 21:11:15,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 909 transitions. [2022-11-02 21:11:15,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:11:15,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 909 transitions. [2022-11-02 21:11:15,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 303.0) internal successors, (909), 3 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:16,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 323.0) internal successors, (1292), 4 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:16,266 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 323.0) internal successors, (1292), 4 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:16,266 INFO L175 Difference]: Start difference. First operand has 304 places, 302 transitions, 626 flow. Second operand 3 states and 909 transitions. [2022-11-02 21:11:16,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 303 transitions, 655 flow [2022-11-02 21:11:16,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 303 transitions, 651 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:11:16,273 INFO L231 Difference]: Finished difference. Result has 303 places, 302 transitions, 632 flow [2022-11-02 21:11:16,274 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=632, PETRI_PLACES=303, PETRI_TRANSITIONS=302} [2022-11-02 21:11:16,277 INFO L287 CegarLoopForPetriNet]: 319 programPoint places, -16 predicate places. [2022-11-02 21:11:16,278 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 302 transitions, 632 flow [2022-11-02 21:11:16,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.6666666666667) internal successors, (899), 3 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:16,278 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:11:16,279 INFO L208 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] [2022-11-02 21:11:16,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 21:11:16,279 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-02 21:11:16,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:16,280 INFO L85 PathProgramCache]: Analyzing trace with hash -612768174, now seen corresponding path program 1 times [2022-11-02 21:11:16,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:16,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228980934] [2022-11-02 21:11:16,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:16,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:16,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:16,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:16,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:16,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228980934] [2022-11-02 21:11:16,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228980934] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:16,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:16,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:11:16,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417421900] [2022-11-02 21:11:16,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:16,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:11:16,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:16,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:11:16,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:11:16,969 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 323 [2022-11-02 21:11:16,971 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 302 transitions, 632 flow. Second operand has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:16,971 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:11:16,971 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 323 [2022-11-02 21:11:16,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand