./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 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_b372d995-a83c-432b-a3da-4ad95c4537bd/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b372d995-a83c-432b-a3da-4ad95c4537bd/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b372d995-a83c-432b-a3da-4ad95c4537bd/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b372d995-a83c-432b-a3da-4ad95c4537bd/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b372d995-a83c-432b-a3da-4ad95c4537bd/bin/uautomizer-QkZJyEgLgS/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b372d995-a83c-432b-a3da-4ad95c4537bd/bin/uautomizer-QkZJyEgLgS --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 3e185f9c0dac86cdbb29caae2de39811a090d813c08c4c3552062c2aa77b8788 --- 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-4e7fbc6 [2022-11-23 01:43:30,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 01:43:30,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 01:43:30,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 01:43:30,420 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 01:43:30,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 01:43:30,428 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 01:43:30,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 01:43:30,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 01:43:30,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 01:43:30,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 01:43:30,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 01:43:30,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 01:43:30,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 01:43:30,448 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 01:43:30,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 01:43:30,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 01:43:30,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 01:43:30,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 01:43:30,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 01:43:30,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 01:43:30,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 01:43:30,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 01:43:30,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 01:43:30,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 01:43:30,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 01:43:30,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 01:43:30,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 01:43:30,478 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 01:43:30,479 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 01:43:30,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 01:43:30,480 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 01:43:30,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 01:43:30,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 01:43:30,484 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 01:43:30,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 01:43:30,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 01:43:30,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 01:43:30,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 01:43:30,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 01:43:30,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 01:43:30,488 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b372d995-a83c-432b-a3da-4ad95c4537bd/bin/uautomizer-QkZJyEgLgS/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-23 01:43:30,520 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 01:43:30,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 01:43:30,521 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 01:43:30,541 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 01:43:30,542 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 01:43:30,542 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 01:43:30,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 01:43:30,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 01:43:30,543 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 01:43:30,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 01:43:30,545 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 01:43:30,545 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 01:43:30,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 01:43:30,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 01:43:30,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 01:43:30,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 01:43:30,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 01:43:30,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 01:43:30,547 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 01:43:30,547 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 01:43:30,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 01:43:30,548 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 01:43:30,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 01:43:30,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 01:43:30,549 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 01:43:30,549 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 01:43:30,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 01:43:30,550 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 01:43:30,550 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 01:43:30,551 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 01:43:30,551 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 01:43:30,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 01:43:30,552 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 01:43:30,552 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 01:43:30,552 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 01:43:30,552 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 01:43:30,553 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_b372d995-a83c-432b-a3da-4ad95c4537bd/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b372d995-a83c-432b-a3da-4ad95c4537bd/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e185f9c0dac86cdbb29caae2de39811a090d813c08c4c3552062c2aa77b8788 [2022-11-23 01:43:30,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 01:43:30,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 01:43:30,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 01:43:30,901 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 01:43:30,901 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 01:43:30,902 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b372d995-a83c-432b-a3da-4ad95c4537bd/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2022-11-23 01:43:33,965 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 01:43:34,157 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 01:43:34,157 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b372d995-a83c-432b-a3da-4ad95c4537bd/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2022-11-23 01:43:34,164 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b372d995-a83c-432b-a3da-4ad95c4537bd/bin/uautomizer-QkZJyEgLgS/data/dff107ec7/45b758e2e40e4509b8d09fef69f0034f/FLAGefc3f082f [2022-11-23 01:43:34,178 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b372d995-a83c-432b-a3da-4ad95c4537bd/bin/uautomizer-QkZJyEgLgS/data/dff107ec7/45b758e2e40e4509b8d09fef69f0034f [2022-11-23 01:43:34,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 01:43:34,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 01:43:34,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 01:43:34,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 01:43:34,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 01:43:34,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:43:34" (1/1) ... [2022-11-23 01:43:34,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4379bbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:34, skipping insertion in model container [2022-11-23 01:43:34,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:43:34" (1/1) ... [2022-11-23 01:43:34,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 01:43:34,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 01:43:34,409 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b372d995-a83c-432b-a3da-4ad95c4537bd/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c[2815,2828] [2022-11-23 01:43:34,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 01:43:34,425 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 01:43:34,463 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b372d995-a83c-432b-a3da-4ad95c4537bd/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c[2815,2828] [2022-11-23 01:43:34,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 01:43:34,486 INFO L208 MainTranslator]: Completed translation [2022-11-23 01:43:34,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:34 WrapperNode [2022-11-23 01:43:34,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 01:43:34,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 01:43:34,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 01:43:34,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 01:43:34,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:34" (1/1) ... [2022-11-23 01:43:34,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:34" (1/1) ... [2022-11-23 01:43:34,570 INFO L138 Inliner]: procedures = 26, calls = 57, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 371 [2022-11-23 01:43:34,573 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 01:43:34,574 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 01:43:34,574 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 01:43:34,575 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 01:43:34,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:34" (1/1) ... [2022-11-23 01:43:34,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:34" (1/1) ... [2022-11-23 01:43:34,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:34" (1/1) ... [2022-11-23 01:43:34,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:34" (1/1) ... [2022-11-23 01:43:34,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:34" (1/1) ... [2022-11-23 01:43:34,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:34" (1/1) ... [2022-11-23 01:43:34,668 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:34" (1/1) ... [2022-11-23 01:43:34,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:34" (1/1) ... [2022-11-23 01:43:34,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 01:43:34,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 01:43:34,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 01:43:34,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 01:43:34,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:34" (1/1) ... [2022-11-23 01:43:34,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 01:43:34,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b372d995-a83c-432b-a3da-4ad95c4537bd/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:43:34,732 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b372d995-a83c-432b-a3da-4ad95c4537bd/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 01:43:34,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b372d995-a83c-432b-a3da-4ad95c4537bd/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 01:43:34,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 01:43:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 01:43:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 01:43:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 01:43:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-23 01:43:34,780 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-23 01:43:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-23 01:43:34,781 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-23 01:43:34,781 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-23 01:43:34,781 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-23 01:43:34,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 01:43:34,781 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 01:43:34,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 01:43:34,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 01:43:34,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 01:43:34,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 01:43:34,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 01:43:34,784 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 01:43:34,956 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 01:43:34,958 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 01:43:35,908 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 01:43:36,172 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 01:43:36,172 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-23 01:43:36,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:43:36 BoogieIcfgContainer [2022-11-23 01:43:36,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 01:43:36,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 01:43:36,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 01:43:36,184 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 01:43:36,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:43:34" (1/3) ... [2022-11-23 01:43:36,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65076d04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:43:36, skipping insertion in model container [2022-11-23 01:43:36,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:34" (2/3) ... [2022-11-23 01:43:36,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65076d04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:43:36, skipping insertion in model container [2022-11-23 01:43:36,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:43:36" (3/3) ... [2022-11-23 01:43:36,190 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-min.wvr.c [2022-11-23 01:43:36,198 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 01:43:36,206 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 01:43:36,207 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2022-11-23 01:43:36,207 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 01:43:36,331 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-23 01:43:36,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 511 places, 528 transitions, 1080 flow [2022-11-23 01:43:36,572 INFO L130 PetriNetUnfolder]: 27/525 cut-off events. [2022-11-23 01:43:36,572 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-23 01:43:36,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 525 events. 27/525 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 623 event pairs, 0 based on Foata normal form. 0/440 useless extension candidates. Maximal degree in co-relation 421. Up to 3 conditions per place. [2022-11-23 01:43:36,584 INFO L82 GeneralOperation]: Start removeDead. Operand has 511 places, 528 transitions, 1080 flow [2022-11-23 01:43:36,599 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 464 places, 478 transitions, 974 flow [2022-11-23 01:43:36,605 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 01:43:36,632 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 464 places, 478 transitions, 974 flow [2022-11-23 01:43:36,643 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 464 places, 478 transitions, 974 flow [2022-11-23 01:43:36,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 464 places, 478 transitions, 974 flow [2022-11-23 01:43:36,754 INFO L130 PetriNetUnfolder]: 24/478 cut-off events. [2022-11-23 01:43:36,754 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-23 01:43:36,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 491 conditions, 478 events. 24/478 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 620 event pairs, 0 based on Foata normal form. 0/397 useless extension candidates. Maximal degree in co-relation 421. Up to 3 conditions per place. [2022-11-23 01:43:36,767 INFO L119 LiptonReduction]: Number of co-enabled transitions 13362 [2022-11-23 01:47:53,675 INFO L134 LiptonReduction]: Checked pairs total: 92756 [2022-11-23 01:47:53,676 INFO L136 LiptonReduction]: Total number of compositions: 568 [2022-11-23 01:47:53,692 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 01:47:53,698 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;@5b39b54, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 01:47:53,699 INFO L358 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2022-11-23 01:47:53,700 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-23 01:47:53,701 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 01:47:53,701 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 01:47:53,701 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-23 01:47:53,702 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-23 01:47:53,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:47:53,707 INFO L85 PathProgramCache]: Analyzing trace with hash 2067, now seen corresponding path program 1 times [2022-11-23 01:47:53,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:47:53,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398616780] [2022-11-23 01:47:53,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:47:53,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:47:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:47:53,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:47:53,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:47:53,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398616780] [2022-11-23 01:47:53,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398616780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:47:53,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:47:53,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-23 01:47:53,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774732861] [2022-11-23 01:47:53,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:47:53,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 01:47:53,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:47:53,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 01:47:53,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 01:47:53,872 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 486 out of 1096 [2022-11-23 01:47:53,877 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 128 transitions, 274 flow. Second operand has 2 states, 2 states have (on average 486.5) internal successors, (973), 2 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:47:53,878 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 01:47:53,878 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 486 of 1096 [2022-11-23 01:47:53,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 01:47:54,427 INFO L130 PetriNetUnfolder]: 1107/2339 cut-off events. [2022-11-23 01:47:54,427 INFO L131 PetriNetUnfolder]: For 74/74 co-relation queries the response was YES. [2022-11-23 01:47:54,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3886 conditions, 2339 events. 1107/2339 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 16391 event pairs, 534 based on Foata normal form. 366/2032 useless extension candidates. Maximal degree in co-relation 3529. Up to 1444 conditions per place. [2022-11-23 01:47:54,444 INFO L137 encePairwiseOnDemand]: 1042/1096 looper letters, 32 selfloop transitions, 0 changer transitions 3/74 dead transitions. [2022-11-23 01:47:54,444 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 74 transitions, 236 flow [2022-11-23 01:47:54,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 01:47:54,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-23 01:47:54,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1061 transitions. [2022-11-23 01:47:54,461 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4840328467153285 [2022-11-23 01:47:54,462 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1061 transitions. [2022-11-23 01:47:54,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1061 transitions. [2022-11-23 01:47:54,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 01:47:54,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1061 transitions. [2022-11-23 01:47:54,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 530.5) internal successors, (1061), 2 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:47:54,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1096.0) internal successors, (3288), 3 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:47:54,486 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1096.0) internal successors, (3288), 3 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:47:54,488 INFO L175 Difference]: Start difference. First operand has 126 places, 128 transitions, 274 flow. Second operand 2 states and 1061 transitions. [2022-11-23 01:47:54,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 74 transitions, 236 flow [2022-11-23 01:47:54,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 74 transitions, 224 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-23 01:47:54,496 INFO L231 Difference]: Finished difference. Result has 70 places, 71 transitions, 146 flow [2022-11-23 01:47:54,498 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=146, PETRI_PLACES=70, PETRI_TRANSITIONS=71} [2022-11-23 01:47:54,501 INFO L288 CegarLoopForPetriNet]: 126 programPoint places, -56 predicate places. [2022-11-23 01:47:54,502 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 71 transitions, 146 flow [2022-11-23 01:47:54,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 486.5) internal successors, (973), 2 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:47:54,503 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 01:47:54,503 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:47:54,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 01:47:54,504 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-23 01:47:54,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:47:54,505 INFO L85 PathProgramCache]: Analyzing trace with hash 55408050, now seen corresponding path program 1 times [2022-11-23 01:47:54,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:47:54,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520869103] [2022-11-23 01:47:54,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:47:54,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:47:54,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:47:54,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:47:54,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:47:54,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520869103] [2022-11-23 01:47:54,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520869103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:47:54,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:47:54,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 01:47:54,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968647057] [2022-11-23 01:47:54,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:47:54,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 01:47:54,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:47:54,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 01:47:54,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 01:47:55,117 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 1096 [2022-11-23 01:47:55,119 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 71 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 476.0) internal successors, (1428), 3 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:47:55,120 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 01:47:55,139 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 1096 [2022-11-23 01:47:55,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 01:47:55,717 INFO L130 PetriNetUnfolder]: 1093/2317 cut-off events. [2022-11-23 01:47:55,718 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-23 01:47:55,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3782 conditions, 2317 events. 1093/2317 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 16214 event pairs, 528 based on Foata normal form. 0/1652 useless extension candidates. Maximal degree in co-relation 3779. Up to 1421 conditions per place. [2022-11-23 01:47:55,733 INFO L137 encePairwiseOnDemand]: 1093/1096 looper letters, 31 selfloop transitions, 2 changer transitions 0/72 dead transitions. [2022-11-23 01:47:55,733 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 72 transitions, 214 flow [2022-11-23 01:47:55,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 01:47:55,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 01:47:55,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1456 transitions. [2022-11-23 01:47:55,738 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44282238442822386 [2022-11-23 01:47:55,738 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1456 transitions. [2022-11-23 01:47:55,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1456 transitions. [2022-11-23 01:47:55,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 01:47:55,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1456 transitions. [2022-11-23 01:47:55,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 485.3333333333333) internal successors, (1456), 3 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:47:55,752 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:47:55,754 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:47:55,754 INFO L175 Difference]: Start difference. First operand has 70 places, 71 transitions, 146 flow. Second operand 3 states and 1456 transitions. [2022-11-23 01:47:55,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 72 transitions, 214 flow [2022-11-23 01:47:55,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 72 transitions, 214 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 01:47:55,757 INFO L231 Difference]: Finished difference. Result has 70 places, 72 transitions, 158 flow [2022-11-23 01:47:55,758 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=70, PETRI_TRANSITIONS=72} [2022-11-23 01:47:55,759 INFO L288 CegarLoopForPetriNet]: 126 programPoint places, -56 predicate places. [2022-11-23 01:47:55,759 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 72 transitions, 158 flow [2022-11-23 01:47:55,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 476.0) internal successors, (1428), 3 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:47:55,761 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 01:47:55,761 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:47:55,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 01:47:55,761 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-23 01:47:55,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:47:55,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1480690677, now seen corresponding path program 1 times [2022-11-23 01:47:55,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:47:55,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772798843] [2022-11-23 01:47:55,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:47:55,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:47:55,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:47:56,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 01:47:56,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:47:56,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772798843] [2022-11-23 01:47:56,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772798843] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:47:56,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:47:56,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 01:47:56,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287604998] [2022-11-23 01:47:56,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:47:56,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 01:47:56,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:47:56,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 01:47:56,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 01:47:57,683 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 1096 [2022-11-23 01:47:57,687 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 72 transitions, 158 flow. Second operand has 6 states, 6 states have (on average 460.1666666666667) internal successors, (2761), 6 states have internal predecessors, (2761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:47:57,687 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 01:47:57,687 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 1096 [2022-11-23 01:47:57,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 01:48:00,368 INFO L130 PetriNetUnfolder]: 3069/5363 cut-off events. [2022-11-23 01:48:00,369 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-23 01:48:00,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9518 conditions, 5363 events. 3069/5363 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 296. Compared 36328 event pairs, 589 based on Foata normal form. 0/3742 useless extension candidates. Maximal degree in co-relation 9513. Up to 2134 conditions per place. [2022-11-23 01:48:00,403 INFO L137 encePairwiseOnDemand]: 1080/1096 looper letters, 90 selfloop transitions, 17 changer transitions 0/135 dead transitions. [2022-11-23 01:48:00,404 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 135 transitions, 506 flow [2022-11-23 01:48:00,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 01:48:00,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 01:48:00,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2856 transitions. [2022-11-23 01:48:00,411 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4343065693430657 [2022-11-23 01:48:00,412 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2856 transitions. [2022-11-23 01:48:00,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2856 transitions. [2022-11-23 01:48:00,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 01:48:00,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2856 transitions. [2022-11-23 01:48:00,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 476.0) internal successors, (2856), 6 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:00,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:00,437 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:00,437 INFO L175 Difference]: Start difference. First operand has 70 places, 72 transitions, 158 flow. Second operand 6 states and 2856 transitions. [2022-11-23 01:48:00,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 135 transitions, 506 flow [2022-11-23 01:48:00,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 135 transitions, 502 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-11-23 01:48:00,443 INFO L231 Difference]: Finished difference. Result has 79 places, 88 transitions, 284 flow [2022-11-23 01:48:00,443 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=284, PETRI_PLACES=79, PETRI_TRANSITIONS=88} [2022-11-23 01:48:00,444 INFO L288 CegarLoopForPetriNet]: 126 programPoint places, -47 predicate places. [2022-11-23 01:48:00,445 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 88 transitions, 284 flow [2022-11-23 01:48:00,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 460.1666666666667) internal successors, (2761), 6 states have internal predecessors, (2761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:00,447 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 01:48:00,447 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:48:00,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 01:48:00,447 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-23 01:48:00,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:48:00,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1343244171, now seen corresponding path program 1 times [2022-11-23 01:48:00,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:48:00,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191056195] [2022-11-23 01:48:00,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:48:00,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:48:00,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:48:00,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 01:48:00,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:48:00,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191056195] [2022-11-23 01:48:00,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191056195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:48:00,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:48:00,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 01:48:00,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486325915] [2022-11-23 01:48:00,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:48:00,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 01:48:00,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:48:00,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 01:48:00,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 01:48:00,582 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 478 out of 1096 [2022-11-23 01:48:00,584 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 88 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 481.0) internal successors, (1443), 3 states have internal predecessors, (1443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:00,584 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 01:48:00,587 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 478 of 1096 [2022-11-23 01:48:00,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 01:48:01,976 INFO L130 PetriNetUnfolder]: 3143/5897 cut-off events. [2022-11-23 01:48:01,977 INFO L131 PetriNetUnfolder]: For 2155/2260 co-relation queries the response was YES. [2022-11-23 01:48:01,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12744 conditions, 5897 events. 3143/5897 cut-off events. For 2155/2260 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 42331 event pairs, 624 based on Foata normal form. 18/4819 useless extension candidates. Maximal degree in co-relation 12735. Up to 2484 conditions per place. [2022-11-23 01:48:02,030 INFO L137 encePairwiseOnDemand]: 1092/1096 looper letters, 62 selfloop transitions, 6 changer transitions 0/113 dead transitions. [2022-11-23 01:48:02,030 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 113 transitions, 509 flow [2022-11-23 01:48:02,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 01:48:02,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 01:48:02,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1486 transitions. [2022-11-23 01:48:02,040 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4519464720194647 [2022-11-23 01:48:02,040 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1486 transitions. [2022-11-23 01:48:02,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1486 transitions. [2022-11-23 01:48:02,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 01:48:02,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1486 transitions. [2022-11-23 01:48:02,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 495.3333333333333) internal successors, (1486), 3 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:02,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:02,054 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:02,054 INFO L175 Difference]: Start difference. First operand has 79 places, 88 transitions, 284 flow. Second operand 3 states and 1486 transitions. [2022-11-23 01:48:02,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 113 transitions, 509 flow [2022-11-23 01:48:02,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 113 transitions, 509 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 01:48:02,069 INFO L231 Difference]: Finished difference. Result has 81 places, 91 transitions, 328 flow [2022-11-23 01:48:02,069 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=328, PETRI_PLACES=81, PETRI_TRANSITIONS=91} [2022-11-23 01:48:02,071 INFO L288 CegarLoopForPetriNet]: 126 programPoint places, -45 predicate places. [2022-11-23 01:48:02,071 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 91 transitions, 328 flow [2022-11-23 01:48:02,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 481.0) internal successors, (1443), 3 states have internal predecessors, (1443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:02,072 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 01:48:02,072 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:48:02,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 01:48:02,073 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-23 01:48:02,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:48:02,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1219678314, now seen corresponding path program 1 times [2022-11-23 01:48:02,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:48:02,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468657636] [2022-11-23 01:48:02,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:48:02,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:48:02,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:48:02,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 01:48:02,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:48:02,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468657636] [2022-11-23 01:48:02,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468657636] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:48:02,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:48:02,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 01:48:02,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647864061] [2022-11-23 01:48:02,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:48:02,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 01:48:02,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:48:02,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 01:48:02,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 01:48:02,553 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 1096 [2022-11-23 01:48:02,555 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 91 transitions, 328 flow. Second operand has 4 states, 4 states have (on average 474.75) internal successors, (1899), 4 states have internal predecessors, (1899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:02,555 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 01:48:02,555 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 1096 [2022-11-23 01:48:02,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 01:48:04,004 INFO L130 PetriNetUnfolder]: 3174/6065 cut-off events. [2022-11-23 01:48:04,004 INFO L131 PetriNetUnfolder]: For 3239/3370 co-relation queries the response was YES. [2022-11-23 01:48:04,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13343 conditions, 6065 events. 3174/6065 cut-off events. For 3239/3370 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 44806 event pairs, 1372 based on Foata normal form. 36/5064 useless extension candidates. Maximal degree in co-relation 13333. Up to 4004 conditions per place. [2022-11-23 01:48:04,051 INFO L137 encePairwiseOnDemand]: 1089/1096 looper letters, 42 selfloop transitions, 6 changer transitions 0/93 dead transitions. [2022-11-23 01:48:04,051 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 93 transitions, 428 flow [2022-11-23 01:48:04,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 01:48:04,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-23 01:48:04,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1925 transitions. [2022-11-23 01:48:04,058 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43909671532846717 [2022-11-23 01:48:04,059 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1925 transitions. [2022-11-23 01:48:04,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1925 transitions. [2022-11-23 01:48:04,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 01:48:04,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1925 transitions. [2022-11-23 01:48:04,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 481.25) internal successors, (1925), 4 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:04,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1096.0) internal successors, (5480), 5 states have internal predecessors, (5480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:04,075 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1096.0) internal successors, (5480), 5 states have internal predecessors, (5480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:04,076 INFO L175 Difference]: Start difference. First operand has 81 places, 91 transitions, 328 flow. Second operand 4 states and 1925 transitions. [2022-11-23 01:48:04,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 93 transitions, 428 flow [2022-11-23 01:48:04,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 93 transitions, 422 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 01:48:04,095 INFO L231 Difference]: Finished difference. Result has 84 places, 93 transitions, 350 flow [2022-11-23 01:48:04,095 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=350, PETRI_PLACES=84, PETRI_TRANSITIONS=93} [2022-11-23 01:48:04,097 INFO L288 CegarLoopForPetriNet]: 126 programPoint places, -42 predicate places. [2022-11-23 01:48:04,098 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 93 transitions, 350 flow [2022-11-23 01:48:04,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 474.75) internal successors, (1899), 4 states have internal predecessors, (1899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:04,099 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 01:48:04,099 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:48:04,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 01:48:04,099 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-23 01:48:04,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:48:04,100 INFO L85 PathProgramCache]: Analyzing trace with hash -469852400, now seen corresponding path program 1 times [2022-11-23 01:48:04,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:48:04,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994295808] [2022-11-23 01:48:04,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:48:04,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:48:04,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:48:04,720 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 01:48:04,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:48:04,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994295808] [2022-11-23 01:48:04,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994295808] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:48:04,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:48:04,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 01:48:04,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514958895] [2022-11-23 01:48:04,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:48:04,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 01:48:04,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:48:04,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 01:48:04,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 01:48:05,848 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 465 out of 1096 [2022-11-23 01:48:05,851 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 93 transitions, 350 flow. Second operand has 6 states, 6 states have (on average 468.0) internal successors, (2808), 6 states have internal predecessors, (2808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:05,851 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 01:48:05,851 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 465 of 1096 [2022-11-23 01:48:05,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 01:48:10,128 INFO L130 PetriNetUnfolder]: 17601/25895 cut-off events. [2022-11-23 01:48:10,128 INFO L131 PetriNetUnfolder]: For 14583/15298 co-relation queries the response was YES. [2022-11-23 01:48:10,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60648 conditions, 25895 events. 17601/25895 cut-off events. For 14583/15298 co-relation queries the response was YES. Maximal size of possible extension queue 850. Compared 175859 event pairs, 3576 based on Foata normal form. 232/20720 useless extension candidates. Maximal degree in co-relation 60636. Up to 13608 conditions per place. [2022-11-23 01:48:10,359 INFO L137 encePairwiseOnDemand]: 1089/1096 looper letters, 155 selfloop transitions, 25 changer transitions 0/219 dead transitions. [2022-11-23 01:48:10,359 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 219 transitions, 1283 flow [2022-11-23 01:48:10,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 01:48:10,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 01:48:10,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2903 transitions. [2022-11-23 01:48:10,368 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4414537712895377 [2022-11-23 01:48:10,368 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2903 transitions. [2022-11-23 01:48:10,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2903 transitions. [2022-11-23 01:48:10,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 01:48:10,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2903 transitions. [2022-11-23 01:48:10,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 483.8333333333333) internal successors, (2903), 6 states have internal predecessors, (2903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:10,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:10,406 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:10,406 INFO L175 Difference]: Start difference. First operand has 84 places, 93 transitions, 350 flow. Second operand 6 states and 2903 transitions. [2022-11-23 01:48:10,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 219 transitions, 1283 flow [2022-11-23 01:48:10,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 219 transitions, 1282 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 01:48:10,447 INFO L231 Difference]: Finished difference. Result has 93 places, 117 transitions, 589 flow [2022-11-23 01:48:10,448 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=589, PETRI_PLACES=93, PETRI_TRANSITIONS=117} [2022-11-23 01:48:10,453 INFO L288 CegarLoopForPetriNet]: 126 programPoint places, -33 predicate places. [2022-11-23 01:48:10,454 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 117 transitions, 589 flow [2022-11-23 01:48:10,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 468.0) internal successors, (2808), 6 states have internal predecessors, (2808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:10,455 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 01:48:10,455 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:48:10,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 01:48:10,455 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-23 01:48:10,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:48:10,456 INFO L85 PathProgramCache]: Analyzing trace with hash 813610032, now seen corresponding path program 1 times [2022-11-23 01:48:10,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:48:10,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544133173] [2022-11-23 01:48:10,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:48:10,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:48:10,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:48:10,737 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 01:48:10,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:48:10,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544133173] [2022-11-23 01:48:10,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544133173] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 01:48:10,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564832822] [2022-11-23 01:48:10,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:48:10,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 01:48:10,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b372d995-a83c-432b-a3da-4ad95c4537bd/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:48:10,742 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b372d995-a83c-432b-a3da-4ad95c4537bd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 01:48:10,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b372d995-a83c-432b-a3da-4ad95c4537bd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 01:48:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:48:11,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 01:48:11,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 01:48:11,162 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 01:48:11,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 01:48:11,286 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 01:48:11,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564832822] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 01:48:11,286 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 01:48:11,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-23 01:48:11,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032948542] [2022-11-23 01:48:11,287 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 01:48:11,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 01:48:11,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:48:11,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 01:48:11,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-23 01:48:13,194 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 462 out of 1096 [2022-11-23 01:48:13,198 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 117 transitions, 589 flow. Second operand has 12 states, 12 states have (on average 463.9166666666667) internal successors, (5567), 12 states have internal predecessors, (5567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:13,198 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 01:48:13,198 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 462 of 1096 [2022-11-23 01:48:13,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 01:48:15,452 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1979] L61-1-->L61-6: Formula: (let ((.cse7 (* |v_thread2Thread1of1ForFork0_~i~1#1_1152| 4))) (let ((.cse2 (+ v_~A~0.offset_1604 .cse7)) (.cse9 (+ v_~B~0.offset_1506 .cse7)) (.cse1 (+ |v_thread2Thread1of1ForFork0_~i~1#1_1152| 1)) (.cse4 (+ v_~C~0.offset_864 .cse7)) (.cse0 (+ |v_thread2Thread1of1ForFork0_plus_~a#1_903| |v_thread2Thread1of1ForFork0_plus_~b#1_903|))) (and (= |v_thread2Thread1of1ForFork0_plus_#in~b#1_903| |v_thread2Thread1of1ForFork0_plus_~b#1_903|) (= |v_#race~A~0_1811| 0) (<= |v_thread2Thread1of1ForFork0_plus_#res#1_903| 2147483647) (= .cse0 |v_thread2Thread1of1ForFork0_plus_#res#1_903|) (= .cse1 v_~p~0_765) (= |v_thread2Thread1of1ForFork0_plus_#in~a#1_903| |v_thread2Thread1of1ForFork0_plus_~a#1_903|) (= (select (select |v_#memory_int_2340| v_~A~0.base_1604) .cse2) |v_thread2Thread1of1ForFork0_plus_#in~a#1_903|) (= |v_#race~N~0_718| 0) (= |v_#race_7020| (let ((.cse3 (let ((.cse8 (store |v_#race_7021| v_~A~0.base_1604 (store (store (store (store (select |v_#race_7021| v_~A~0.base_1604) .cse2 0) (+ v_~A~0.offset_1604 .cse7 1) 0) (+ 2 v_~A~0.offset_1604 .cse7) 0) (+ v_~A~0.offset_1604 3 .cse7) 0)))) (store .cse8 v_~B~0.base_1506 (store (store (store (store (select .cse8 v_~B~0.base_1506) .cse9 0) (+ v_~B~0.offset_1506 .cse7 1) 0) (+ 2 v_~B~0.offset_1506 .cse7) 0) (+ 3 v_~B~0.offset_1506 .cse7) 0))))) (store .cse3 v_~C~0.base_864 (let ((.cse6 (+ v_~C~0.offset_864 .cse7 1))) (let ((.cse5 (select (select |v_#race_7020| v_~C~0.base_864) .cse6))) (store (store (store (store (select .cse3 v_~C~0.base_864) .cse4 .cse5) .cse6 .cse5) (+ v_~C~0.offset_864 2 .cse7) .cse5) (+ v_~C~0.offset_864 3 .cse7) .cse5)))))) (= |v_thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1_903| |v_thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1_903|) (= |v_thread2Thread1of1ForFork0_plus_#in~b#1_903| (select (select |v_#memory_int_2340| v_~B~0.base_1506) .cse9)) (<= 0 (+ |v_thread2Thread1of1ForFork0_plus_#res#1_903| 2147483648)) (= .cse1 |v_thread2Thread1of1ForFork0_~i~1#1_1151|) (= |v_#memory_int_2339| (store |v_#memory_int_2340| v_~C~0.base_864 (store (select |v_#memory_int_2340| v_~C~0.base_864) .cse4 |v_thread2Thread1of1ForFork0_plus_#res#1_903|))) (= |v_#race~B~0_1601| 0) (< |v_thread2Thread1of1ForFork0_~i~1#1_1152| v_~N~0_403) (= |v_#race~C~0_2649| 0) (= |v_thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1_903| (ite (or (<= .cse0 2147483647) (<= |v_thread2Thread1of1ForFork0_plus_~b#1_903| 0)) 1 0))))) InVars {#race=|v_#race_7021|, ~A~0.base=v_~A~0.base_1604, ~B~0.base=v_~B~0.base_1506, ~A~0.offset=v_~A~0.offset_1604, ~C~0.base=v_~C~0.base_864, #race~N~0=|v_#race~N~0_718|, ~C~0.offset=v_~C~0.offset_864, #memory_int=|v_#memory_int_2340|, thread2Thread1of1ForFork0_~i~1#1=|v_thread2Thread1of1ForFork0_~i~1#1_1152|, ~N~0=v_~N~0_403, ~B~0.offset=v_~B~0.offset_1506} OutVars{~A~0.base=v_~A~0.base_1604, ~B~0.base=v_~B~0.base_1506, thread2Thread1of1ForFork0_#t~ret11#1=|v_thread2Thread1of1ForFork0_#t~ret11#1_903|, ~C~0.base=v_~C~0.base_864, thread2Thread1of1ForFork0_plus_~a#1=|v_thread2Thread1of1ForFork0_plus_~a#1_903|, #race~N~0=|v_#race~N~0_718|, thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1=|v_thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1_903|, thread2Thread1of1ForFork0_~i~1#1=|v_thread2Thread1of1ForFork0_~i~1#1_1151|, #race~B~0=|v_#race~B~0_1601|, thread2Thread1of1ForFork0_#t~mem9#1=|v_thread2Thread1of1ForFork0_#t~mem9#1_1571|, thread2Thread1of1ForFork0_#t~nondet13#1=|v_thread2Thread1of1ForFork0_#t~nondet13#1_665|, thread2Thread1of1ForFork0_plus_#in~b#1=|v_thread2Thread1of1ForFork0_plus_#in~b#1_903|, thread2Thread1of1ForFork0_plus_~b#1=|v_thread2Thread1of1ForFork0_plus_~b#1_903|, thread2Thread1of1ForFork0_plus_#res#1=|v_thread2Thread1of1ForFork0_plus_#res#1_903|, ~B~0.offset=v_~B~0.offset_1506, thread2Thread1of1ForFork0_#t~nondet12#1=|v_thread2Thread1of1ForFork0_#t~nondet12#1_903|, #race=|v_#race_7020|, thread2Thread1of1ForFork0_plus_#in~a#1=|v_thread2Thread1of1ForFork0_plus_#in~a#1_903|, thread2Thread1of1ForFork0_#t~mem10#1=|v_thread2Thread1of1ForFork0_#t~mem10#1_1133|, ~N~0=v_~N~0_403, thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1=|v_thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1_903|, ~A~0.offset=v_~A~0.offset_1604, #race~p~0=|v_#race~p~0_1130|, ~C~0.offset=v_~C~0.offset_864, #memory_int=|v_#memory_int_2339|, ~p~0=v_~p~0_765, #race~C~0=|v_#race~C~0_2649|, thread2Thread1of1ForFork0_#t~post8#1=|v_thread2Thread1of1ForFork0_#t~post8#1_287|, #race~A~0=|v_#race~A~0_1811|} AuxVars[] AssignedVars[#race, thread2Thread1of1ForFork0_plus_#in~a#1, thread2Thread1of1ForFork0_#t~ret11#1, thread2Thread1of1ForFork0_plus_~a#1, thread2Thread1of1ForFork0_#t~mem10#1, thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1, thread2Thread1of1ForFork0_~i~1#1, #race~B~0, thread2Thread1of1ForFork0_#t~mem9#1, thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1, thread2Thread1of1ForFork0_#t~nondet13#1, thread2Thread1of1ForFork0_plus_#in~b#1, thread2Thread1of1ForFork0_plus_~b#1, thread2Thread1of1ForFork0_plus_#res#1, #race~p~0, #memory_int, ~p~0, thread2Thread1of1ForFork0_#t~nondet12#1, #race~C~0, thread2Thread1of1ForFork0_#t~post8#1, #race~A~0][124], [Black: 542#(and (<= 1 ~N~0) (= |ULTIMATE.start_create_fresh_int_array_~size#1| ~N~0) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0)), 99#L109-6true, 522#true, Black: 547#(= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0), Black: 519#(and (<= 1 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0)), Black: 548#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0)), Black: 549#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), Black: 550#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 311#L48-7true, 514#true, 265#L77-1true, Black: 526#(and (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) 2 ~A~0.offset)) 0) (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset)) 0) (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset 1)) 0)), Black: 525#(and (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset)) 0) (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset 1)) 0)), 450#L61-6true, 534#true, Black: 527#(and (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) 3 ~A~0.offset)) 0) (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) 2 ~A~0.offset)) 0) (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset)) 0) (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset 1)) 0)), Black: 524#(= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset)) 0), 545#true, 696#(and (<= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 1) (= thread1Thread1of1ForFork2_~i~0 1) (<= ~N~0 1) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 541#(<= 1 ~N~0)]) [2022-11-23 01:48:15,452 INFO L383 tUnfolder$Statistics]: this new event has 27 ancestors and is cut-off event [2022-11-23 01:48:15,453 INFO L386 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2022-11-23 01:48:15,453 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2022-11-23 01:48:15,453 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2022-11-23 01:48:15,620 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1979] L61-1-->L61-6: Formula: (let ((.cse7 (* |v_thread2Thread1of1ForFork0_~i~1#1_1152| 4))) (let ((.cse2 (+ v_~A~0.offset_1604 .cse7)) (.cse9 (+ v_~B~0.offset_1506 .cse7)) (.cse1 (+ |v_thread2Thread1of1ForFork0_~i~1#1_1152| 1)) (.cse4 (+ v_~C~0.offset_864 .cse7)) (.cse0 (+ |v_thread2Thread1of1ForFork0_plus_~a#1_903| |v_thread2Thread1of1ForFork0_plus_~b#1_903|))) (and (= |v_thread2Thread1of1ForFork0_plus_#in~b#1_903| |v_thread2Thread1of1ForFork0_plus_~b#1_903|) (= |v_#race~A~0_1811| 0) (<= |v_thread2Thread1of1ForFork0_plus_#res#1_903| 2147483647) (= .cse0 |v_thread2Thread1of1ForFork0_plus_#res#1_903|) (= .cse1 v_~p~0_765) (= |v_thread2Thread1of1ForFork0_plus_#in~a#1_903| |v_thread2Thread1of1ForFork0_plus_~a#1_903|) (= (select (select |v_#memory_int_2340| v_~A~0.base_1604) .cse2) |v_thread2Thread1of1ForFork0_plus_#in~a#1_903|) (= |v_#race~N~0_718| 0) (= |v_#race_7020| (let ((.cse3 (let ((.cse8 (store |v_#race_7021| v_~A~0.base_1604 (store (store (store (store (select |v_#race_7021| v_~A~0.base_1604) .cse2 0) (+ v_~A~0.offset_1604 .cse7 1) 0) (+ 2 v_~A~0.offset_1604 .cse7) 0) (+ v_~A~0.offset_1604 3 .cse7) 0)))) (store .cse8 v_~B~0.base_1506 (store (store (store (store (select .cse8 v_~B~0.base_1506) .cse9 0) (+ v_~B~0.offset_1506 .cse7 1) 0) (+ 2 v_~B~0.offset_1506 .cse7) 0) (+ 3 v_~B~0.offset_1506 .cse7) 0))))) (store .cse3 v_~C~0.base_864 (let ((.cse6 (+ v_~C~0.offset_864 .cse7 1))) (let ((.cse5 (select (select |v_#race_7020| v_~C~0.base_864) .cse6))) (store (store (store (store (select .cse3 v_~C~0.base_864) .cse4 .cse5) .cse6 .cse5) (+ v_~C~0.offset_864 2 .cse7) .cse5) (+ v_~C~0.offset_864 3 .cse7) .cse5)))))) (= |v_thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1_903| |v_thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1_903|) (= |v_thread2Thread1of1ForFork0_plus_#in~b#1_903| (select (select |v_#memory_int_2340| v_~B~0.base_1506) .cse9)) (<= 0 (+ |v_thread2Thread1of1ForFork0_plus_#res#1_903| 2147483648)) (= .cse1 |v_thread2Thread1of1ForFork0_~i~1#1_1151|) (= |v_#memory_int_2339| (store |v_#memory_int_2340| v_~C~0.base_864 (store (select |v_#memory_int_2340| v_~C~0.base_864) .cse4 |v_thread2Thread1of1ForFork0_plus_#res#1_903|))) (= |v_#race~B~0_1601| 0) (< |v_thread2Thread1of1ForFork0_~i~1#1_1152| v_~N~0_403) (= |v_#race~C~0_2649| 0) (= |v_thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1_903| (ite (or (<= .cse0 2147483647) (<= |v_thread2Thread1of1ForFork0_plus_~b#1_903| 0)) 1 0))))) InVars {#race=|v_#race_7021|, ~A~0.base=v_~A~0.base_1604, ~B~0.base=v_~B~0.base_1506, ~A~0.offset=v_~A~0.offset_1604, ~C~0.base=v_~C~0.base_864, #race~N~0=|v_#race~N~0_718|, ~C~0.offset=v_~C~0.offset_864, #memory_int=|v_#memory_int_2340|, thread2Thread1of1ForFork0_~i~1#1=|v_thread2Thread1of1ForFork0_~i~1#1_1152|, ~N~0=v_~N~0_403, ~B~0.offset=v_~B~0.offset_1506} OutVars{~A~0.base=v_~A~0.base_1604, ~B~0.base=v_~B~0.base_1506, thread2Thread1of1ForFork0_#t~ret11#1=|v_thread2Thread1of1ForFork0_#t~ret11#1_903|, ~C~0.base=v_~C~0.base_864, thread2Thread1of1ForFork0_plus_~a#1=|v_thread2Thread1of1ForFork0_plus_~a#1_903|, #race~N~0=|v_#race~N~0_718|, thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1=|v_thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1_903|, thread2Thread1of1ForFork0_~i~1#1=|v_thread2Thread1of1ForFork0_~i~1#1_1151|, #race~B~0=|v_#race~B~0_1601|, thread2Thread1of1ForFork0_#t~mem9#1=|v_thread2Thread1of1ForFork0_#t~mem9#1_1571|, thread2Thread1of1ForFork0_#t~nondet13#1=|v_thread2Thread1of1ForFork0_#t~nondet13#1_665|, thread2Thread1of1ForFork0_plus_#in~b#1=|v_thread2Thread1of1ForFork0_plus_#in~b#1_903|, thread2Thread1of1ForFork0_plus_~b#1=|v_thread2Thread1of1ForFork0_plus_~b#1_903|, thread2Thread1of1ForFork0_plus_#res#1=|v_thread2Thread1of1ForFork0_plus_#res#1_903|, ~B~0.offset=v_~B~0.offset_1506, thread2Thread1of1ForFork0_#t~nondet12#1=|v_thread2Thread1of1ForFork0_#t~nondet12#1_903|, #race=|v_#race_7020|, thread2Thread1of1ForFork0_plus_#in~a#1=|v_thread2Thread1of1ForFork0_plus_#in~a#1_903|, thread2Thread1of1ForFork0_#t~mem10#1=|v_thread2Thread1of1ForFork0_#t~mem10#1_1133|, ~N~0=v_~N~0_403, thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1=|v_thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1_903|, ~A~0.offset=v_~A~0.offset_1604, #race~p~0=|v_#race~p~0_1130|, ~C~0.offset=v_~C~0.offset_864, #memory_int=|v_#memory_int_2339|, ~p~0=v_~p~0_765, #race~C~0=|v_#race~C~0_2649|, thread2Thread1of1ForFork0_#t~post8#1=|v_thread2Thread1of1ForFork0_#t~post8#1_287|, #race~A~0=|v_#race~A~0_1811|} AuxVars[] AssignedVars[#race, thread2Thread1of1ForFork0_plus_#in~a#1, thread2Thread1of1ForFork0_#t~ret11#1, thread2Thread1of1ForFork0_plus_~a#1, thread2Thread1of1ForFork0_#t~mem10#1, thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1, thread2Thread1of1ForFork0_~i~1#1, #race~B~0, thread2Thread1of1ForFork0_#t~mem9#1, thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1, thread2Thread1of1ForFork0_#t~nondet13#1, thread2Thread1of1ForFork0_plus_#in~b#1, thread2Thread1of1ForFork0_plus_~b#1, thread2Thread1of1ForFork0_plus_#res#1, #race~p~0, #memory_int, ~p~0, thread2Thread1of1ForFork0_#t~nondet12#1, #race~C~0, thread2Thread1of1ForFork0_#t~post8#1, #race~A~0][124], [Black: 542#(and (<= 1 ~N~0) (= |ULTIMATE.start_create_fresh_int_array_~size#1| ~N~0) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0)), 99#L109-6true, 522#true, Black: 547#(= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0), Black: 519#(and (<= 1 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0)), Black: 548#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0)), Black: 549#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), Black: 550#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 514#true, 265#L77-1true, Black: 526#(and (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) 2 ~A~0.offset)) 0) (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset)) 0) (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset 1)) 0)), Black: 525#(and (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset)) 0) (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset 1)) 0)), 450#L61-6true, 534#true, Black: 527#(and (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) 3 ~A~0.offset)) 0) (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) 2 ~A~0.offset)) 0) (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset)) 0) (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset 1)) 0)), Black: 524#(= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset)) 0), 545#true, 696#(and (<= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 1) (= thread1Thread1of1ForFork2_~i~0 1) (<= ~N~0 1) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 541#(<= 1 ~N~0), 204#thread1EXITtrue]) [2022-11-23 01:48:15,620 INFO L383 tUnfolder$Statistics]: this new event has 29 ancestors and is cut-off event [2022-11-23 01:48:15,620 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2022-11-23 01:48:15,620 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2022-11-23 01:48:15,621 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2022-11-23 01:48:17,979 INFO L130 PetriNetUnfolder]: 10745/18466 cut-off events. [2022-11-23 01:48:17,979 INFO L131 PetriNetUnfolder]: For 26361/27482 co-relation queries the response was YES. [2022-11-23 01:48:18,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49621 conditions, 18466 events. 10745/18466 cut-off events. For 26361/27482 co-relation queries the response was YES. Maximal size of possible extension queue 678. Compared 144157 event pairs, 2760 based on Foata normal form. 68/15177 useless extension candidates. Maximal degree in co-relation 49605. Up to 10062 conditions per place. [2022-11-23 01:48:18,124 INFO L137 encePairwiseOnDemand]: 1086/1096 looper letters, 149 selfloop transitions, 21 changer transitions 0/218 dead transitions. [2022-11-23 01:48:18,124 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 218 transitions, 1325 flow [2022-11-23 01:48:18,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 01:48:18,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-23 01:48:18,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4739 transitions. [2022-11-23 01:48:18,136 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4323905109489051 [2022-11-23 01:48:18,136 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4739 transitions. [2022-11-23 01:48:18,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4739 transitions. [2022-11-23 01:48:18,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 01:48:18,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4739 transitions. [2022-11-23 01:48:18,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 473.9) internal successors, (4739), 10 states have internal predecessors, (4739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:18,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 1096.0) internal successors, (12056), 11 states have internal predecessors, (12056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:18,164 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 1096.0) internal successors, (12056), 11 states have internal predecessors, (12056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:18,165 INFO L175 Difference]: Start difference. First operand has 93 places, 117 transitions, 589 flow. Second operand 10 states and 4739 transitions. [2022-11-23 01:48:18,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 218 transitions, 1325 flow [2022-11-23 01:48:18,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 218 transitions, 1325 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 01:48:18,231 INFO L231 Difference]: Finished difference. Result has 107 places, 132 transitions, 738 flow [2022-11-23 01:48:18,231 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=589, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=738, PETRI_PLACES=107, PETRI_TRANSITIONS=132} [2022-11-23 01:48:18,233 INFO L288 CegarLoopForPetriNet]: 126 programPoint places, -19 predicate places. [2022-11-23 01:48:18,233 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 132 transitions, 738 flow [2022-11-23 01:48:18,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 463.9166666666667) internal successors, (5567), 12 states have internal predecessors, (5567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:18,239 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 01:48:18,239 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:48:18,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b372d995-a83c-432b-a3da-4ad95c4537bd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 01:48:18,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b372d995-a83c-432b-a3da-4ad95c4537bd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 01:48:18,446 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-23 01:48:18,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:48:18,446 INFO L85 PathProgramCache]: Analyzing trace with hash 2023793916, now seen corresponding path program 1 times [2022-11-23 01:48:18,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:48:18,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732355495] [2022-11-23 01:48:18,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:48:18,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:48:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:48:18,732 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 01:48:18,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:48:18,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732355495] [2022-11-23 01:48:18,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732355495] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 01:48:18,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418954831] [2022-11-23 01:48:18,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:48:18,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 01:48:18,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b372d995-a83c-432b-a3da-4ad95c4537bd/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:48:18,739 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b372d995-a83c-432b-a3da-4ad95c4537bd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 01:48:18,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b372d995-a83c-432b-a3da-4ad95c4537bd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 01:48:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:48:18,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 01:48:18,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 01:48:19,162 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 01:48:19,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 01:48:19,510 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 01:48:19,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418954831] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 01:48:19,511 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 01:48:19,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-23 01:48:19,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255329860] [2022-11-23 01:48:19,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 01:48:19,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 01:48:19,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:48:19,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 01:48:19,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-23 01:48:20,499 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 462 out of 1096 [2022-11-23 01:48:20,504 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 132 transitions, 738 flow. Second operand has 12 states, 12 states have (on average 464.0833333333333) internal successors, (5569), 12 states have internal predecessors, (5569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:20,504 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 01:48:20,504 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 462 of 1096 [2022-11-23 01:48:20,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 01:48:23,935 INFO L130 PetriNetUnfolder]: 8956/14662 cut-off events. [2022-11-23 01:48:23,935 INFO L131 PetriNetUnfolder]: For 21831/23533 co-relation queries the response was YES. [2022-11-23 01:48:23,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39733 conditions, 14662 events. 8956/14662 cut-off events. For 21831/23533 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 104505 event pairs, 1656 based on Foata normal form. 1020/13073 useless extension candidates. Maximal degree in co-relation 39712. Up to 6311 conditions per place. [2022-11-23 01:48:24,063 INFO L137 encePairwiseOnDemand]: 1086/1096 looper letters, 143 selfloop transitions, 21 changer transitions 0/214 dead transitions. [2022-11-23 01:48:24,063 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 214 transitions, 1339 flow [2022-11-23 01:48:24,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 01:48:24,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-23 01:48:24,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4744 transitions. [2022-11-23 01:48:24,075 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43284671532846714 [2022-11-23 01:48:24,076 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4744 transitions. [2022-11-23 01:48:24,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4744 transitions. [2022-11-23 01:48:24,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 01:48:24,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4744 transitions. [2022-11-23 01:48:24,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 474.4) internal successors, (4744), 10 states have internal predecessors, (4744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:24,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 1096.0) internal successors, (12056), 11 states have internal predecessors, (12056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:24,106 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 1096.0) internal successors, (12056), 11 states have internal predecessors, (12056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:24,106 INFO L175 Difference]: Start difference. First operand has 107 places, 132 transitions, 738 flow. Second operand 10 states and 4744 transitions. [2022-11-23 01:48:24,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 214 transitions, 1339 flow [2022-11-23 01:48:24,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 214 transitions, 1317 flow, removed 5 selfloop flow, removed 1 redundant places. [2022-11-23 01:48:24,148 INFO L231 Difference]: Finished difference. Result has 118 places, 135 transitions, 797 flow [2022-11-23 01:48:24,148 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=797, PETRI_PLACES=118, PETRI_TRANSITIONS=135} [2022-11-23 01:48:24,151 INFO L288 CegarLoopForPetriNet]: 126 programPoint places, -8 predicate places. [2022-11-23 01:48:24,151 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 135 transitions, 797 flow [2022-11-23 01:48:24,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 464.0833333333333) internal successors, (5569), 12 states have internal predecessors, (5569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:24,153 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 01:48:24,153 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:48:24,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b372d995-a83c-432b-a3da-4ad95c4537bd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 01:48:24,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b372d995-a83c-432b-a3da-4ad95c4537bd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 01:48:24,359 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-23 01:48:24,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:48:24,359 INFO L85 PathProgramCache]: Analyzing trace with hash 224543363, now seen corresponding path program 2 times [2022-11-23 01:48:24,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:48:24,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110576465] [2022-11-23 01:48:24,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:48:24,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:48:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:48:26,441 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 01:48:26,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:48:26,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110576465] [2022-11-23 01:48:26,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110576465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:48:26,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:48:26,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 01:48:26,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975589135] [2022-11-23 01:48:26,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:48:26,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 01:48:26,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:48:26,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 01:48:26,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-23 01:48:29,990 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 451 out of 1096 [2022-11-23 01:48:29,994 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 135 transitions, 797 flow. Second operand has 9 states, 9 states have (on average 452.6666666666667) internal successors, (4074), 9 states have internal predecessors, (4074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:29,994 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 01:48:29,994 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 451 of 1096 [2022-11-23 01:48:29,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 01:48:35,996 INFO L130 PetriNetUnfolder]: 18431/31504 cut-off events. [2022-11-23 01:48:35,996 INFO L131 PetriNetUnfolder]: For 70093/74121 co-relation queries the response was YES. [2022-11-23 01:48:36,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93827 conditions, 31504 events. 18431/31504 cut-off events. For 70093/74121 co-relation queries the response was YES. Maximal size of possible extension queue 833. Compared 256879 event pairs, 3858 based on Foata normal form. 418/26402 useless extension candidates. Maximal degree in co-relation 93803. Up to 11976 conditions per place. [2022-11-23 01:48:36,235 INFO L137 encePairwiseOnDemand]: 1083/1096 looper letters, 195 selfloop transitions, 58 changer transitions 0/298 dead transitions. [2022-11-23 01:48:36,235 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 298 transitions, 2405 flow [2022-11-23 01:48:36,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 01:48:36,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-23 01:48:36,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4623 transitions. [2022-11-23 01:48:36,247 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4218065693430657 [2022-11-23 01:48:36,248 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4623 transitions. [2022-11-23 01:48:36,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4623 transitions. [2022-11-23 01:48:36,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 01:48:36,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4623 transitions. [2022-11-23 01:48:36,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 462.3) internal successors, (4623), 10 states have internal predecessors, (4623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:36,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 1096.0) internal successors, (12056), 11 states have internal predecessors, (12056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:36,276 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 1096.0) internal successors, (12056), 11 states have internal predecessors, (12056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:36,276 INFO L175 Difference]: Start difference. First operand has 118 places, 135 transitions, 797 flow. Second operand 10 states and 4623 transitions. [2022-11-23 01:48:36,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 298 transitions, 2405 flow [2022-11-23 01:48:36,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 298 transitions, 2384 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-23 01:48:36,643 INFO L231 Difference]: Finished difference. Result has 128 places, 181 transitions, 1459 flow [2022-11-23 01:48:36,643 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1459, PETRI_PLACES=128, PETRI_TRANSITIONS=181} [2022-11-23 01:48:36,644 INFO L288 CegarLoopForPetriNet]: 126 programPoint places, 2 predicate places. [2022-11-23 01:48:36,644 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 181 transitions, 1459 flow [2022-11-23 01:48:36,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 452.6666666666667) internal successors, (4074), 9 states have internal predecessors, (4074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:36,645 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 01:48:36,645 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:48:36,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 01:48:36,646 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-23 01:48:36,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:48:36,646 INFO L85 PathProgramCache]: Analyzing trace with hash -483144993, now seen corresponding path program 3 times [2022-11-23 01:48:36,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:48:36,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464961663] [2022-11-23 01:48:36,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:48:36,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:48:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:48:38,828 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 01:48:38,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:48:38,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464961663] [2022-11-23 01:48:38,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464961663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:48:38,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:48:38,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 01:48:38,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624828945] [2022-11-23 01:48:38,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:48:38,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 01:48:38,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:48:38,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 01:48:38,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-23 01:48:42,516 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 451 out of 1096 [2022-11-23 01:48:42,521 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 181 transitions, 1459 flow. Second operand has 9 states, 9 states have (on average 452.6666666666667) internal successors, (4074), 9 states have internal predecessors, (4074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:42,521 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 01:48:42,521 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 451 of 1096 [2022-11-23 01:48:42,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 01:48:50,505 INFO L130 PetriNetUnfolder]: 25738/43655 cut-off events. [2022-11-23 01:48:50,506 INFO L131 PetriNetUnfolder]: For 168672/173181 co-relation queries the response was YES. [2022-11-23 01:48:50,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146638 conditions, 43655 events. 25738/43655 cut-off events. For 168672/173181 co-relation queries the response was YES. Maximal size of possible extension queue 1343. Compared 371131 event pairs, 3397 based on Foata normal form. 532/36532 useless extension candidates. Maximal degree in co-relation 146609. Up to 21394 conditions per place. [2022-11-23 01:48:50,888 INFO L137 encePairwiseOnDemand]: 1084/1096 looper letters, 188 selfloop transitions, 112 changer transitions 0/345 dead transitions. [2022-11-23 01:48:50,888 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 345 transitions, 3433 flow [2022-11-23 01:48:50,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 01:48:50,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-23 01:48:50,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4623 transitions. [2022-11-23 01:48:50,899 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4218065693430657 [2022-11-23 01:48:50,900 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4623 transitions. [2022-11-23 01:48:50,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4623 transitions. [2022-11-23 01:48:50,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 01:48:50,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4623 transitions. [2022-11-23 01:48:50,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 462.3) internal successors, (4623), 10 states have internal predecessors, (4623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:50,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 1096.0) internal successors, (12056), 11 states have internal predecessors, (12056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:50,932 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 1096.0) internal successors, (12056), 11 states have internal predecessors, (12056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:50,932 INFO L175 Difference]: Start difference. First operand has 128 places, 181 transitions, 1459 flow. Second operand 10 states and 4623 transitions. [2022-11-23 01:48:50,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 345 transitions, 3433 flow [2022-11-23 01:48:51,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 345 transitions, 3417 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-23 01:48:51,872 INFO L231 Difference]: Finished difference. Result has 136 places, 252 transitions, 2772 flow [2022-11-23 01:48:51,872 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=1443, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2772, PETRI_PLACES=136, PETRI_TRANSITIONS=252} [2022-11-23 01:48:51,873 INFO L288 CegarLoopForPetriNet]: 126 programPoint places, 10 predicate places. [2022-11-23 01:48:51,873 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 252 transitions, 2772 flow [2022-11-23 01:48:51,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 452.6666666666667) internal successors, (4074), 9 states have internal predecessors, (4074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:51,874 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 01:48:51,874 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:48:51,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 01:48:51,875 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-23 01:48:51,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:48:51,875 INFO L85 PathProgramCache]: Analyzing trace with hash -2114485423, now seen corresponding path program 2 times [2022-11-23 01:48:51,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:48:51,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335550336] [2022-11-23 01:48:51,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:48:51,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:48:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:48:53,165 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 01:48:53,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:48:53,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335550336] [2022-11-23 01:48:53,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335550336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:48:53,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:48:53,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 01:48:53,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494475193] [2022-11-23 01:48:53,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:48:53,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 01:48:53,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:48:53,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 01:48:53,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-23 01:48:56,479 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 453 out of 1096 [2022-11-23 01:48:56,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 252 transitions, 2772 flow. Second operand has 11 states, 11 states have (on average 454.72727272727275) internal successors, (5002), 11 states have internal predecessors, (5002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:48:56,483 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 01:48:56,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 453 of 1096 [2022-11-23 01:48:56,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 01:49:07,991 INFO L130 PetriNetUnfolder]: 42700/62985 cut-off events. [2022-11-23 01:49:07,991 INFO L131 PetriNetUnfolder]: For 264809/273004 co-relation queries the response was YES.