./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b5c46d-c735-40af-a379-f752c1a20a16/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b5c46d-c735-40af-a379-f752c1a20a16/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_30b5c46d-c735-40af-a379-f752c1a20a16/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b5c46d-c735-40af-a379-f752c1a20a16/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b5c46d-c735-40af-a379-f752c1a20a16/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_30b5c46d-c735-40af-a379-f752c1a20a16/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 084d7ddce3c53222c6533ccae99969e854061e3b422eaf94457157515e3bd009 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 21:04:09,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:04:09,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:04:09,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:04:09,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:04:09,323 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:04:09,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:04:09,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:04:09,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:04:09,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:04:09,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:04:09,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:04:09,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:04:09,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:04:09,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:04:09,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:04:09,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:04:09,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:04:09,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:04:09,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:04:09,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:04:09,345 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:04:09,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:04:09,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:04:09,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:04:09,351 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:04:09,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:04:09,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:04:09,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:04:09,355 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:04:09,355 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:04:09,356 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:04:09,357 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:04:09,358 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:04:09,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:04:09,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:04:09,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:04:09,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:04:09,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:04:09,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:04:09,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:04:09,364 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b5c46d-c735-40af-a379-f752c1a20a16/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 21:04:09,388 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:04:09,389 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:04:09,389 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:04:09,389 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:04:09,390 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:04:09,390 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:04:09,391 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:04:09,391 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:04:09,392 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:04:09,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:04:09,392 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:04:09,393 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:04:09,393 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:04:09,393 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:04:09,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:04:09,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:04:09,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:04:09,394 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:04:09,394 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 21:04:09,394 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:04:09,395 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:04:09,395 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:04:09,395 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:04:09,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:04:09,396 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:04:09,396 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:04:09,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:04:09,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:04:09,397 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:04:09,397 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:04:09,397 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:04:09,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:04:09,398 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:04:09,398 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:04:09,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:04:09,398 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_30b5c46d-c735-40af-a379-f752c1a20a16/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b5c46d-c735-40af-a379-f752c1a20a16/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 084d7ddce3c53222c6533ccae99969e854061e3b422eaf94457157515e3bd009 [2022-11-02 21:04:09,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:04:09,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:04:09,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:04:09,675 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:04:09,676 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:04:09,678 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b5c46d-c735-40af-a379-f752c1a20a16/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2022-11-02 21:04:09,773 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b5c46d-c735-40af-a379-f752c1a20a16/bin/uautomizer-Dbtcem3rbc/data/98ac1582f/d72e33a7daec495ea67e9fede766b128/FLAG58d17d530 [2022-11-02 21:04:10,239 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:04:10,240 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b5c46d-c735-40af-a379-f752c1a20a16/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2022-11-02 21:04:10,262 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b5c46d-c735-40af-a379-f752c1a20a16/bin/uautomizer-Dbtcem3rbc/data/98ac1582f/d72e33a7daec495ea67e9fede766b128/FLAG58d17d530 [2022-11-02 21:04:10,605 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b5c46d-c735-40af-a379-f752c1a20a16/bin/uautomizer-Dbtcem3rbc/data/98ac1582f/d72e33a7daec495ea67e9fede766b128 [2022-11-02 21:04:10,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:04:10,613 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:04:10,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:04:10,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:04:10,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:04:10,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:04:10" (1/1) ... [2022-11-02 21:04:10,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ea3160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:10, skipping insertion in model container [2022-11-02 21:04:10,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:04:10" (1/1) ... [2022-11-02 21:04:10,632 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:04:10,670 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:04:10,897 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_30b5c46d-c735-40af-a379-f752c1a20a16/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c[3963,3976] [2022-11-02 21:04:10,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:04:10,907 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:04:10,947 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_30b5c46d-c735-40af-a379-f752c1a20a16/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c[3963,3976] [2022-11-02 21:04:10,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:04:10,961 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:04:10,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:10 WrapperNode [2022-11-02 21:04:10,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:04:10,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:04:10,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:04:10,963 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:04:10,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:10" (1/1) ... [2022-11-02 21:04:10,983 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:10" (1/1) ... [2022-11-02 21:04:11,020 INFO L138 Inliner]: procedures = 24, calls = 85, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 491 [2022-11-02 21:04:11,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:04:11,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:04:11,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:04:11,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:04:11,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:10" (1/1) ... [2022-11-02 21:04:11,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:10" (1/1) ... [2022-11-02 21:04:11,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:10" (1/1) ... [2022-11-02 21:04:11,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:10" (1/1) ... [2022-11-02 21:04:11,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:10" (1/1) ... [2022-11-02 21:04:11,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:10" (1/1) ... [2022-11-02 21:04:11,050 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:10" (1/1) ... [2022-11-02 21:04:11,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:10" (1/1) ... [2022-11-02 21:04:11,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:04:11,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:04:11,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:04:11,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:04:11,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:10" (1/1) ... [2022-11-02 21:04:11,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:04:11,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b5c46d-c735-40af-a379-f752c1a20a16/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:11,113 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b5c46d-c735-40af-a379-f752c1a20a16/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:11,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b5c46d-c735-40af-a379-f752c1a20a16/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:04:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:04:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 21:04:11,158 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 21:04:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 21:04:11,158 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 21:04:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-02 21:04:11,160 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-02 21:04:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-02 21:04:11,161 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-02 21:04:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:04:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-02 21:04:11,162 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-02 21:04:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:04:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:04:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-02 21:04:11,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-02 21:04:11,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:04:11,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:04:11,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:04:11,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:04:11,166 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 21:04:11,294 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:04:11,296 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:04:12,084 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:04:12,368 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:04:12,368 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 21:04:12,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:04:12 BoogieIcfgContainer [2022-11-02 21:04:12,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:04:12,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:04:12,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:04:12,387 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:04:12,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:04:10" (1/3) ... [2022-11-02 21:04:12,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3173b20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:04:12, skipping insertion in model container [2022-11-02 21:04:12,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:10" (2/3) ... [2022-11-02 21:04:12,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3173b20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:04:12, skipping insertion in model container [2022-11-02 21:04:12,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:04:12" (3/3) ... [2022-11-02 21:04:12,392 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2022-11-02 21:04:12,404 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 21:04:12,413 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:04:12,413 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 75 error locations. [2022-11-02 21:04:12,413 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 21:04:12,540 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-11-02 21:04:12,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 340 places, 329 transitions, 698 flow [2022-11-02 21:04:12,760 INFO L130 PetriNetUnfolder]: 5/324 cut-off events. [2022-11-02 21:04:12,761 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-02 21:04:12,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 324 events. 5/324 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 358 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 241. Up to 2 conditions per place. [2022-11-02 21:04:12,767 INFO L82 GeneralOperation]: Start removeDead. Operand has 340 places, 329 transitions, 698 flow [2022-11-02 21:04:12,784 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 312 places, 300 transitions, 630 flow [2022-11-02 21:04:12,802 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:04:12,811 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;@49f3887d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:04:12,811 INFO L358 AbstractCegarLoop]: Starting to check reachability of 134 error locations. [2022-11-02 21:04:12,824 INFO L130 PetriNetUnfolder]: 0/30 cut-off events. [2022-11-02 21:04:12,825 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:04:12,826 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:04:12,826 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] [2022-11-02 21:04:12,828 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-11-02 21:04:12,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:12,833 INFO L85 PathProgramCache]: Analyzing trace with hash 245957389, now seen corresponding path program 1 times [2022-11-02 21:04:12,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:12,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530642043] [2022-11-02 21:04:12,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:12,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:13,081 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 21:04:13,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:13,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530642043] [2022-11-02 21:04:13,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530642043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:13,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:13,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:04:13,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918163535] [2022-11-02 21:04:13,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:13,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:04:13,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:13,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:04:13,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:04:13,153 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 329 [2022-11-02 21:04:13,160 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 300 transitions, 630 flow. Second operand has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:13,161 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:04:13,161 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 329 [2022-11-02 21:04:13,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:04:19,992 INFO L130 PetriNetUnfolder]: 16567/24960 cut-off events. [2022-11-02 21:04:19,992 INFO L131 PetriNetUnfolder]: For 3630/4991 co-relation queries the response was YES. [2022-11-02 21:04:20,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49658 conditions, 24960 events. 16567/24960 cut-off events. For 3630/4991 co-relation queries the response was YES. Maximal size of possible extension queue 953. Compared 167246 event pairs, 16564 based on Foata normal form. 1/24674 useless extension candidates. Maximal degree in co-relation 49011. Up to 22035 conditions per place. [2022-11-02 21:04:20,321 INFO L137 encePairwiseOnDemand]: 271/329 looper letters, 34 selfloop transitions, 2 changer transitions 1/244 dead transitions. [2022-11-02 21:04:20,322 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 244 transitions, 590 flow [2022-11-02 21:04:20,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:04:20,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:04:20,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 797 transitions. [2022-11-02 21:04:20,349 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8074974670719351 [2022-11-02 21:04:20,350 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 797 transitions. [2022-11-02 21:04:20,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 797 transitions. [2022-11-02 21:04:20,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:04:20,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 797 transitions. [2022-11-02 21:04:20,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:20,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:20,375 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:20,377 INFO L175 Difference]: Start difference. First operand has 312 places, 300 transitions, 630 flow. Second operand 3 states and 797 transitions. [2022-11-02 21:04:20,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 244 transitions, 590 flow [2022-11-02 21:04:20,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 244 transitions, 570 flow, removed 0 selfloop flow, removed 10 redundant places. [2022-11-02 21:04:20,407 INFO L231 Difference]: Finished difference. Result has 249 places, 243 transitions, 500 flow [2022-11-02 21:04:20,409 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=500, PETRI_PLACES=249, PETRI_TRANSITIONS=243} [2022-11-02 21:04:20,414 INFO L287 CegarLoopForPetriNet]: 312 programPoint places, -63 predicate places. [2022-11-02 21:04:20,414 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 243 transitions, 500 flow [2022-11-02 21:04:20,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:20,415 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:04:20,416 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] [2022-11-02 21:04:20,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:04:20,416 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-11-02 21:04:20,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:20,417 INFO L85 PathProgramCache]: Analyzing trace with hash -509374528, now seen corresponding path program 1 times [2022-11-02 21:04:20,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:20,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442995056] [2022-11-02 21:04:20,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:20,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:20,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:20,531 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 21:04:20,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:20,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442995056] [2022-11-02 21:04:20,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442995056] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:20,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:20,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:04:20,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937563698] [2022-11-02 21:04:20,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:20,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:04:20,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:20,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:04:20,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:04:20,537 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 329 [2022-11-02 21:04:20,538 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 243 transitions, 500 flow. Second operand has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:20,538 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:04:20,539 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 329 [2022-11-02 21:04:20,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:04:25,009 INFO L130 PetriNetUnfolder]: 16567/24958 cut-off events. [2022-11-02 21:04:25,009 INFO L131 PetriNetUnfolder]: For 781/2142 co-relation queries the response was YES. [2022-11-02 21:04:25,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47936 conditions, 24958 events. 16567/24958 cut-off events. For 781/2142 co-relation queries the response was YES. Maximal size of possible extension queue 953. Compared 166954 event pairs, 16564 based on Foata normal form. 0/24673 useless extension candidates. Maximal degree in co-relation 47897. Up to 22035 conditions per place. [2022-11-02 21:04:25,220 INFO L137 encePairwiseOnDemand]: 326/329 looper letters, 34 selfloop transitions, 2 changer transitions 0/242 dead transitions. [2022-11-02 21:04:25,220 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 242 transitions, 570 flow [2022-11-02 21:04:25,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:04:25,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:04:25,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 742 transitions. [2022-11-02 21:04:25,223 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.75177304964539 [2022-11-02 21:04:25,223 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 742 transitions. [2022-11-02 21:04:25,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 742 transitions. [2022-11-02 21:04:25,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:04:25,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 742 transitions. [2022-11-02 21:04:25,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:25,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:25,234 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:25,234 INFO L175 Difference]: Start difference. First operand has 249 places, 243 transitions, 500 flow. Second operand 3 states and 742 transitions. [2022-11-02 21:04:25,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 242 transitions, 570 flow [2022-11-02 21:04:25,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 242 transitions, 566 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:04:25,244 INFO L231 Difference]: Finished difference. Result has 247 places, 242 transitions, 498 flow [2022-11-02 21:04:25,244 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=247, PETRI_TRANSITIONS=242} [2022-11-02 21:04:25,245 INFO L287 CegarLoopForPetriNet]: 312 programPoint places, -65 predicate places. [2022-11-02 21:04:25,245 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 242 transitions, 498 flow [2022-11-02 21:04:25,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:25,246 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:04:25,246 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] [2022-11-02 21:04:25,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:04:25,247 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-11-02 21:04:25,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:25,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1456635719, now seen corresponding path program 1 times [2022-11-02 21:04:25,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:25,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018164209] [2022-11-02 21:04:25,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:25,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:25,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:25,333 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 21:04:25,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:25,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018164209] [2022-11-02 21:04:25,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018164209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:25,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:25,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:04:25,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146918899] [2022-11-02 21:04:25,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:25,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:04:25,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:25,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:04:25,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:04:25,337 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 329 [2022-11-02 21:04:25,338 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 242 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:25,339 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:04:25,339 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 329 [2022-11-02 21:04:25,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:04:29,286 INFO L130 PetriNetUnfolder]: 16567/24957 cut-off events. [2022-11-02 21:04:29,286 INFO L131 PetriNetUnfolder]: For 781/2142 co-relation queries the response was YES. [2022-11-02 21:04:29,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47935 conditions, 24957 events. 16567/24957 cut-off events. For 781/2142 co-relation queries the response was YES. Maximal size of possible extension queue 953. Compared 166997 event pairs, 16564 based on Foata normal form. 0/24673 useless extension candidates. Maximal degree in co-relation 47889. Up to 22035 conditions per place. [2022-11-02 21:04:29,487 INFO L137 encePairwiseOnDemand]: 326/329 looper letters, 34 selfloop transitions, 2 changer transitions 0/241 dead transitions. [2022-11-02 21:04:29,488 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 241 transitions, 568 flow [2022-11-02 21:04:29,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:04:29,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:04:29,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 742 transitions. [2022-11-02 21:04:29,490 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.75177304964539 [2022-11-02 21:04:29,491 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 742 transitions. [2022-11-02 21:04:29,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 742 transitions. [2022-11-02 21:04:29,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:04:29,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 742 transitions. [2022-11-02 21:04:29,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:29,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:29,496 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:29,496 INFO L175 Difference]: Start difference. First operand has 247 places, 242 transitions, 498 flow. Second operand 3 states and 742 transitions. [2022-11-02 21:04:29,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 241 transitions, 568 flow [2022-11-02 21:04:29,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 241 transitions, 564 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:04:29,501 INFO L231 Difference]: Finished difference. Result has 246 places, 241 transitions, 496 flow [2022-11-02 21:04:29,502 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=496, PETRI_PLACES=246, PETRI_TRANSITIONS=241} [2022-11-02 21:04:29,502 INFO L287 CegarLoopForPetriNet]: 312 programPoint places, -66 predicate places. [2022-11-02 21:04:29,503 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 241 transitions, 496 flow [2022-11-02 21:04:29,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:29,503 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:04:29,504 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] [2022-11-02 21:04:29,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:04:29,504 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-11-02 21:04:29,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:29,505 INFO L85 PathProgramCache]: Analyzing trace with hash -2101871149, now seen corresponding path program 1 times [2022-11-02 21:04:29,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:29,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403796010] [2022-11-02 21:04:29,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:29,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:29,604 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 21:04:29,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:29,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403796010] [2022-11-02 21:04:29,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403796010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:29,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:29,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:04:29,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363682794] [2022-11-02 21:04:29,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:29,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:04:29,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:29,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:04:29,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:04:29,609 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 329 [2022-11-02 21:04:29,614 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 241 transitions, 496 flow. Second operand has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:29,614 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:04:29,614 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 329 [2022-11-02 21:04:29,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:04:33,517 INFO L130 PetriNetUnfolder]: 16567/24956 cut-off events. [2022-11-02 21:04:33,517 INFO L131 PetriNetUnfolder]: For 781/2142 co-relation queries the response was YES. [2022-11-02 21:04:33,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47934 conditions, 24956 events. 16567/24956 cut-off events. For 781/2142 co-relation queries the response was YES. Maximal size of possible extension queue 953. Compared 167136 event pairs, 16564 based on Foata normal form. 0/24673 useless extension candidates. Maximal degree in co-relation 47881. Up to 22035 conditions per place. [2022-11-02 21:04:33,718 INFO L137 encePairwiseOnDemand]: 326/329 looper letters, 34 selfloop transitions, 2 changer transitions 0/240 dead transitions. [2022-11-02 21:04:33,718 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 240 transitions, 566 flow [2022-11-02 21:04:33,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:04:33,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:04:33,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 742 transitions. [2022-11-02 21:04:33,721 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.75177304964539 [2022-11-02 21:04:33,722 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 742 transitions. [2022-11-02 21:04:33,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 742 transitions. [2022-11-02 21:04:33,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:04:33,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 742 transitions. [2022-11-02 21:04:33,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:33,727 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:33,728 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:33,728 INFO L175 Difference]: Start difference. First operand has 246 places, 241 transitions, 496 flow. Second operand 3 states and 742 transitions. [2022-11-02 21:04:33,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 240 transitions, 566 flow [2022-11-02 21:04:33,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 240 transitions, 562 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:04:33,733 INFO L231 Difference]: Finished difference. Result has 245 places, 240 transitions, 494 flow [2022-11-02 21:04:33,734 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=494, PETRI_PLACES=245, PETRI_TRANSITIONS=240} [2022-11-02 21:04:33,734 INFO L287 CegarLoopForPetriNet]: 312 programPoint places, -67 predicate places. [2022-11-02 21:04:33,735 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 240 transitions, 494 flow [2022-11-02 21:04:33,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:33,735 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:04:33,736 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] [2022-11-02 21:04:33,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:04:33,736 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-11-02 21:04:33,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:33,737 INFO L85 PathProgramCache]: Analyzing trace with hash -312874930, now seen corresponding path program 1 times [2022-11-02 21:04:33,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:33,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703751931] [2022-11-02 21:04:33,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:33,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:33,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:33,792 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 21:04:33,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:33,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703751931] [2022-11-02 21:04:33,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703751931] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:33,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:33,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:04:33,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264087286] [2022-11-02 21:04:33,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:33,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:04:33,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:33,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:04:33,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:04:33,797 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 329 [2022-11-02 21:04:33,798 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 240 transitions, 494 flow. Second operand has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:33,799 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:04:33,799 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 329 [2022-11-02 21:04:33,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:04:37,738 INFO L130 PetriNetUnfolder]: 16567/24955 cut-off events. [2022-11-02 21:04:37,739 INFO L131 PetriNetUnfolder]: For 781/2142 co-relation queries the response was YES. [2022-11-02 21:04:37,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47933 conditions, 24955 events. 16567/24955 cut-off events. For 781/2142 co-relation queries the response was YES. Maximal size of possible extension queue 953. Compared 167185 event pairs, 16564 based on Foata normal form. 0/24673 useless extension candidates. Maximal degree in co-relation 47873. Up to 22035 conditions per place. [2022-11-02 21:04:37,909 INFO L137 encePairwiseOnDemand]: 326/329 looper letters, 34 selfloop transitions, 2 changer transitions 0/239 dead transitions. [2022-11-02 21:04:37,909 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 239 transitions, 564 flow [2022-11-02 21:04:37,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:04:37,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:04:37,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 742 transitions. [2022-11-02 21:04:37,912 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.75177304964539 [2022-11-02 21:04:37,912 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 742 transitions. [2022-11-02 21:04:37,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 742 transitions. [2022-11-02 21:04:37,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:04:37,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 742 transitions. [2022-11-02 21:04:37,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:37,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:37,920 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:37,920 INFO L175 Difference]: Start difference. First operand has 245 places, 240 transitions, 494 flow. Second operand 3 states and 742 transitions. [2022-11-02 21:04:37,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 239 transitions, 564 flow [2022-11-02 21:04:37,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 239 transitions, 560 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:04:37,926 INFO L231 Difference]: Finished difference. Result has 244 places, 239 transitions, 492 flow [2022-11-02 21:04:37,926 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=492, PETRI_PLACES=244, PETRI_TRANSITIONS=239} [2022-11-02 21:04:37,927 INFO L287 CegarLoopForPetriNet]: 312 programPoint places, -68 predicate places. [2022-11-02 21:04:37,927 INFO L495 AbstractCegarLoop]: Abstraction has has 244 places, 239 transitions, 492 flow [2022-11-02 21:04:37,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:37,928 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:04:37,929 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] [2022-11-02 21:04:37,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:04:37,929 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-11-02 21:04:37,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:37,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1338480598, now seen corresponding path program 1 times [2022-11-02 21:04:37,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:37,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867929679] [2022-11-02 21:04:37,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:37,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:38,007 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 21:04:38,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:38,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867929679] [2022-11-02 21:04:38,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867929679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:38,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:38,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:04:38,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895793342] [2022-11-02 21:04:38,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:38,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:04:38,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:38,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:04:38,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:04:38,012 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 329 [2022-11-02 21:04:38,013 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 239 transitions, 492 flow. Second operand has 3 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:38,013 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:04:38,013 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 329 [2022-11-02 21:04:38,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:04:41,718 INFO L130 PetriNetUnfolder]: 16567/24954 cut-off events. [2022-11-02 21:04:41,719 INFO L131 PetriNetUnfolder]: For 781/2142 co-relation queries the response was YES. [2022-11-02 21:04:41,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47941 conditions, 24954 events. 16567/24954 cut-off events. For 781/2142 co-relation queries the response was YES. Maximal size of possible extension queue 953. Compared 167189 event pairs, 16564 based on Foata normal form. 0/24673 useless extension candidates. Maximal degree in co-relation 47874. Up to 22044 conditions per place. [2022-11-02 21:04:41,890 INFO L137 encePairwiseOnDemand]: 326/329 looper letters, 43 selfloop transitions, 2 changer transitions 0/238 dead transitions. [2022-11-02 21:04:41,891 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 238 transitions, 580 flow [2022-11-02 21:04:41,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:04:41,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:04:41,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 724 transitions. [2022-11-02 21:04:41,894 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7335359675785208 [2022-11-02 21:04:41,894 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 724 transitions. [2022-11-02 21:04:41,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 724 transitions. [2022-11-02 21:04:41,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:04:41,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 724 transitions. [2022-11-02 21:04:41,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:41,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:41,901 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:41,902 INFO L175 Difference]: Start difference. First operand has 244 places, 239 transitions, 492 flow. Second operand 3 states and 724 transitions. [2022-11-02 21:04:41,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 238 transitions, 580 flow [2022-11-02 21:04:41,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 238 transitions, 576 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:04:41,907 INFO L231 Difference]: Finished difference. Result has 243 places, 238 transitions, 490 flow [2022-11-02 21:04:41,908 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=490, PETRI_PLACES=243, PETRI_TRANSITIONS=238} [2022-11-02 21:04:41,909 INFO L287 CegarLoopForPetriNet]: 312 programPoint places, -69 predicate places. [2022-11-02 21:04:41,909 INFO L495 AbstractCegarLoop]: Abstraction has has 243 places, 238 transitions, 490 flow [2022-11-02 21:04:41,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:41,910 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:04:41,910 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] [2022-11-02 21:04:41,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 21:04:41,911 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-11-02 21:04:41,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:41,911 INFO L85 PathProgramCache]: Analyzing trace with hash 515718548, now seen corresponding path program 1 times [2022-11-02 21:04:41,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:41,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695531101] [2022-11-02 21:04:41,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:41,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:41,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:41,966 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 21:04:41,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:41,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695531101] [2022-11-02 21:04:41,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695531101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:41,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:41,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:04:41,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142097725] [2022-11-02 21:04:41,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:41,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:04:41,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:41,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:04:41,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:04:41,970 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 329 [2022-11-02 21:04:41,971 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 238 transitions, 490 flow. Second operand has 3 states, 3 states have (on average 233.33333333333334) internal successors, (700), 3 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:41,972 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:04:41,972 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 329 [2022-11-02 21:04:41,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:04:45,769 INFO L130 PetriNetUnfolder]: 16567/24953 cut-off events. [2022-11-02 21:04:45,769 INFO L131 PetriNetUnfolder]: For 781/2142 co-relation queries the response was YES. [2022-11-02 21:04:45,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47934 conditions, 24953 events. 16567/24953 cut-off events. For 781/2142 co-relation queries the response was YES. Maximal size of possible extension queue 953. Compared 167389 event pairs, 16564 based on Foata normal form. 0/24673 useless extension candidates. Maximal degree in co-relation 47860. Up to 22038 conditions per place. [2022-11-02 21:04:45,916 INFO L137 encePairwiseOnDemand]: 326/329 looper letters, 37 selfloop transitions, 2 changer transitions 0/237 dead transitions. [2022-11-02 21:04:45,916 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 237 transitions, 566 flow [2022-11-02 21:04:45,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:04:45,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:04:45,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 736 transitions. [2022-11-02 21:04:45,920 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.745694022289767 [2022-11-02 21:04:45,920 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 736 transitions. [2022-11-02 21:04:45,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 736 transitions. [2022-11-02 21:04:45,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:04:45,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 736 transitions. [2022-11-02 21:04:45,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:45,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:45,924 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:45,924 INFO L175 Difference]: Start difference. First operand has 243 places, 238 transitions, 490 flow. Second operand 3 states and 736 transitions. [2022-11-02 21:04:45,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 237 transitions, 566 flow [2022-11-02 21:04:45,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 237 transitions, 562 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:04:45,929 INFO L231 Difference]: Finished difference. Result has 242 places, 237 transitions, 488 flow [2022-11-02 21:04:45,930 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=488, PETRI_PLACES=242, PETRI_TRANSITIONS=237} [2022-11-02 21:04:45,931 INFO L287 CegarLoopForPetriNet]: 312 programPoint places, -70 predicate places. [2022-11-02 21:04:45,931 INFO L495 AbstractCegarLoop]: Abstraction has has 242 places, 237 transitions, 488 flow [2022-11-02 21:04:45,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 233.33333333333334) internal successors, (700), 3 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:45,932 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:04:45,932 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] [2022-11-02 21:04:45,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 21:04:45,932 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-11-02 21:04:45,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:45,933 INFO L85 PathProgramCache]: Analyzing trace with hash 648192479, now seen corresponding path program 1 times [2022-11-02 21:04:45,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:45,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650068803] [2022-11-02 21:04:45,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:45,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:45,987 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 21:04:45,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:45,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650068803] [2022-11-02 21:04:45,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650068803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:45,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:45,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:04:45,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495712049] [2022-11-02 21:04:45,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:45,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:04:45,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:45,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:04:45,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:04:45,991 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 329 [2022-11-02 21:04:45,992 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 237 transitions, 488 flow. Second operand has 3 states, 3 states have (on average 233.33333333333334) internal successors, (700), 3 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:45,992 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:04:45,992 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 329 [2022-11-02 21:04:45,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand