./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/test-easy7.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182ac92f-2c6e-4b19-ba2d-7b5c7efc0c90/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182ac92f-2c6e-4b19-ba2d-7b5c7efc0c90/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182ac92f-2c6e-4b19-ba2d-7b5c7efc0c90/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182ac92f-2c6e-4b19-ba2d-7b5c7efc0c90/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/test-easy7.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182ac92f-2c6e-4b19-ba2d-7b5c7efc0c90/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182ac92f-2c6e-4b19-ba2d-7b5c7efc0c90/bin/uautomizer-TMbwUNV5ro --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 89875838ba00841ab95f284d6aeb82a1a762d2b06c5f173202307480dc57b4e4 --- 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-8393723 [2022-11-18 18:27:03,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:27:03,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:27:03,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:27:03,491 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:27:03,495 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:27:03,499 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:27:03,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:27:03,508 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:27:03,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:27:03,511 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:27:03,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:27:03,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:27:03,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:27:03,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:27:03,517 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:27:03,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:27:03,520 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:27:03,521 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:27:03,524 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:27:03,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:27:03,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:27:03,528 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:27:03,529 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:27:03,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:27:03,534 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:27:03,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:27:03,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:27:03,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:27:03,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:27:03,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:27:03,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:27:03,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:27:03,542 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:27:03,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:27:03,544 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:27:03,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:27:03,545 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:27:03,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:27:03,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:27:03,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:27:03,548 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182ac92f-2c6e-4b19-ba2d-7b5c7efc0c90/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 18:27:03,596 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:27:03,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:27:03,597 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:27:03,597 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:27:03,598 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:27:03,598 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:27:03,599 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:27:03,600 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:27:03,600 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:27:03,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:27:03,600 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:27:03,601 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:27:03,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:27:03,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:27:03,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:27:03,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:27:03,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:27:03,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:27:03,603 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 18:27:03,603 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:27:03,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:27:03,604 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:27:03,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:27:03,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:27:03,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:27:03,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:27:03,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:27:03,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:27:03,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:27:03,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:27:03,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:27:03,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:27:03,607 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:27:03,607 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:27:03,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:27:03,608 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182ac92f-2c6e-4b19-ba2d-7b5c7efc0c90/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182ac92f-2c6e-4b19-ba2d-7b5c7efc0c90/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89875838ba00841ab95f284d6aeb82a1a762d2b06c5f173202307480dc57b4e4 [2022-11-18 18:27:03,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:27:03,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:27:03,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:27:03,956 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:27:03,957 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:27:03,959 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182ac92f-2c6e-4b19-ba2d-7b5c7efc0c90/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/test-easy7.wvr.c [2022-11-18 18:27:04,091 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182ac92f-2c6e-4b19-ba2d-7b5c7efc0c90/bin/uautomizer-TMbwUNV5ro/data/2e5f3ced1/17373a87d3874a5ca4c6d718600e0347/FLAG68c0b9334 [2022-11-18 18:27:04,603 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:27:04,604 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182ac92f-2c6e-4b19-ba2d-7b5c7efc0c90/sv-benchmarks/c/weaver/test-easy7.wvr.c [2022-11-18 18:27:04,612 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182ac92f-2c6e-4b19-ba2d-7b5c7efc0c90/bin/uautomizer-TMbwUNV5ro/data/2e5f3ced1/17373a87d3874a5ca4c6d718600e0347/FLAG68c0b9334 [2022-11-18 18:27:04,964 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182ac92f-2c6e-4b19-ba2d-7b5c7efc0c90/bin/uautomizer-TMbwUNV5ro/data/2e5f3ced1/17373a87d3874a5ca4c6d718600e0347 [2022-11-18 18:27:04,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:27:04,970 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:27:04,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:27:04,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:27:04,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:27:04,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:27:04" (1/1) ... [2022-11-18 18:27:04,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27e5b85b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:04, skipping insertion in model container [2022-11-18 18:27:04,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:27:04" (1/1) ... [2022-11-18 18:27:04,989 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:27:05,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:27:05,241 WARN L234 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_182ac92f-2c6e-4b19-ba2d-7b5c7efc0c90/sv-benchmarks/c/weaver/test-easy7.wvr.c[1872,1885] [2022-11-18 18:27:05,244 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:27:05,261 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:27:05,307 WARN L234 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_182ac92f-2c6e-4b19-ba2d-7b5c7efc0c90/sv-benchmarks/c/weaver/test-easy7.wvr.c[1872,1885] [2022-11-18 18:27:05,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:27:05,322 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:27:05,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:05 WrapperNode [2022-11-18 18:27:05,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:27:05,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:27:05,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:27:05,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:27:05,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:05" (1/1) ... [2022-11-18 18:27:05,341 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:05" (1/1) ... [2022-11-18 18:27:05,362 INFO L138 Inliner]: procedures = 21, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 80 [2022-11-18 18:27:05,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:27:05,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:27:05,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:27:05,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:27:05,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:05" (1/1) ... [2022-11-18 18:27:05,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:05" (1/1) ... [2022-11-18 18:27:05,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:05" (1/1) ... [2022-11-18 18:27:05,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:05" (1/1) ... [2022-11-18 18:27:05,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:05" (1/1) ... [2022-11-18 18:27:05,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:05" (1/1) ... [2022-11-18 18:27:05,389 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:05" (1/1) ... [2022-11-18 18:27:05,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:05" (1/1) ... [2022-11-18 18:27:05,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:27:05,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:27:05,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:27:05,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:27:05,395 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:05" (1/1) ... [2022-11-18 18:27:05,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:27:05,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182ac92f-2c6e-4b19-ba2d-7b5c7efc0c90/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:27:05,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182ac92f-2c6e-4b19-ba2d-7b5c7efc0c90/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:27:05,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182ac92f-2c6e-4b19-ba2d-7b5c7efc0c90/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:27:05,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:27:05,486 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 18:27:05,486 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 18:27:05,486 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 18:27:05,486 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 18:27:05,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:27:05,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:27:05,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:27:05,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:27:05,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:27:05,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:27:05,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:27:05,489 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 18:27:05,599 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:27:05,602 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:27:06,032 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:27:06,041 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:27:06,042 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 18:27:06,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:27:06 BoogieIcfgContainer [2022-11-18 18:27:06,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:27:06,046 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:27:06,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:27:06,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:27:06,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:27:04" (1/3) ... [2022-11-18 18:27:06,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b17a281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:27:06, skipping insertion in model container [2022-11-18 18:27:06,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:05" (2/3) ... [2022-11-18 18:27:06,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b17a281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:27:06, skipping insertion in model container [2022-11-18 18:27:06,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:27:06" (3/3) ... [2022-11-18 18:27:06,054 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy7.wvr.c [2022-11-18 18:27:06,063 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 18:27:06,087 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:27:06,087 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2022-11-18 18:27:06,087 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 18:27:06,252 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 18:27:06,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 196 places, 191 transitions, 398 flow [2022-11-18 18:27:06,426 INFO L130 PetriNetUnfolder]: 2/189 cut-off events. [2022-11-18 18:27:06,427 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 18:27:06,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 189 events. 2/189 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 189 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2022-11-18 18:27:06,432 INFO L82 GeneralOperation]: Start removeDead. Operand has 196 places, 191 transitions, 398 flow [2022-11-18 18:27:06,438 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 177 places, 171 transitions, 354 flow [2022-11-18 18:27:06,449 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:27:06,457 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;@1abd5512, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:27:06,457 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2022-11-18 18:27:06,463 INFO L130 PetriNetUnfolder]: 0/19 cut-off events. [2022-11-18 18:27:06,464 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:27:06,464 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:06,465 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] [2022-11-18 18:27:06,466 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2022-11-18 18:27:06,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:06,472 INFO L85 PathProgramCache]: Analyzing trace with hash 555690646, now seen corresponding path program 1 times [2022-11-18 18:27:06,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:06,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361316827] [2022-11-18 18:27:06,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:06,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:06,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:06,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:06,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:06,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361316827] [2022-11-18 18:27:06,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361316827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:06,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:06,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:27:06,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396489195] [2022-11-18 18:27:06,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:06,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:27:06,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:06,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:27:06,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:27:06,762 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 191 [2022-11-18 18:27:06,770 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 171 transitions, 354 flow. Second operand has 3 states, 3 states have (on average 149.33333333333334) internal successors, (448), 3 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:06,771 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:06,771 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 191 [2022-11-18 18:27:06,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:07,077 INFO L130 PetriNetUnfolder]: 24/239 cut-off events. [2022-11-18 18:27:07,078 INFO L131 PetriNetUnfolder]: For 80/81 co-relation queries the response was YES. [2022-11-18 18:27:07,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 360 conditions, 239 events. 24/239 cut-off events. For 80/81 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 815 event pairs, 24 based on Foata normal form. 1/188 useless extension candidates. Maximal degree in co-relation 278. Up to 86 conditions per place. [2022-11-18 18:27:07,085 INFO L137 encePairwiseOnDemand]: 187/191 looper letters, 37 selfloop transitions, 2 changer transitions 1/169 dead transitions. [2022-11-18 18:27:07,086 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 169 transitions, 428 flow [2022-11-18 18:27:07,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:27:07,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:27:07,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 485 transitions. [2022-11-18 18:27:07,119 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8464223385689355 [2022-11-18 18:27:07,121 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 485 transitions. [2022-11-18 18:27:07,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 485 transitions. [2022-11-18 18:27:07,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:27:07,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 485 transitions. [2022-11-18 18:27:07,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:07,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:07,148 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:07,150 INFO L175 Difference]: Start difference. First operand has 177 places, 171 transitions, 354 flow. Second operand 3 states and 485 transitions. [2022-11-18 18:27:07,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 169 transitions, 428 flow [2022-11-18 18:27:07,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 169 transitions, 420 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 18:27:07,169 INFO L231 Difference]: Finished difference. Result has 174 places, 168 transitions, 344 flow [2022-11-18 18:27:07,171 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=174, PETRI_TRANSITIONS=168} [2022-11-18 18:27:07,178 INFO L288 CegarLoopForPetriNet]: 177 programPoint places, -3 predicate places. [2022-11-18 18:27:07,179 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 168 transitions, 344 flow [2022-11-18 18:27:07,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.33333333333334) internal successors, (448), 3 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:07,180 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:07,180 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:07,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:27:07,181 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2022-11-18 18:27:07,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:07,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1833145910, now seen corresponding path program 1 times [2022-11-18 18:27:07,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:07,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215004703] [2022-11-18 18:27:07,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:07,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:07,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:07,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:07,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215004703] [2022-11-18 18:27:07,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215004703] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:07,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:07,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:27:07,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373302936] [2022-11-18 18:27:07,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:07,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:27:07,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:07,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:27:07,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:27:07,321 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 191 [2022-11-18 18:27:07,322 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 168 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 149.33333333333334) internal successors, (448), 3 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:07,322 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:07,322 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 191 [2022-11-18 18:27:07,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:07,503 INFO L130 PetriNetUnfolder]: 24/237 cut-off events. [2022-11-18 18:27:07,503 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 18:27:07,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 237 events. 24/237 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 724 event pairs, 24 based on Foata normal form. 0/205 useless extension candidates. Maximal degree in co-relation 326. Up to 85 conditions per place. [2022-11-18 18:27:07,505 INFO L137 encePairwiseOnDemand]: 188/191 looper letters, 36 selfloop transitions, 2 changer transitions 0/167 dead transitions. [2022-11-18 18:27:07,506 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 167 transitions, 418 flow [2022-11-18 18:27:07,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:27:07,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:27:07,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 483 transitions. [2022-11-18 18:27:07,508 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8429319371727748 [2022-11-18 18:27:07,508 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 483 transitions. [2022-11-18 18:27:07,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 483 transitions. [2022-11-18 18:27:07,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:27:07,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 483 transitions. [2022-11-18 18:27:07,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:07,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:07,514 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:07,514 INFO L175 Difference]: Start difference. First operand has 174 places, 168 transitions, 344 flow. Second operand 3 states and 483 transitions. [2022-11-18 18:27:07,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 167 transitions, 418 flow [2022-11-18 18:27:07,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 167 transitions, 414 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:27:07,519 INFO L231 Difference]: Finished difference. Result has 172 places, 167 transitions, 342 flow [2022-11-18 18:27:07,520 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=172, PETRI_TRANSITIONS=167} [2022-11-18 18:27:07,520 INFO L288 CegarLoopForPetriNet]: 177 programPoint places, -5 predicate places. [2022-11-18 18:27:07,521 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 167 transitions, 342 flow [2022-11-18 18:27:07,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.33333333333334) internal successors, (448), 3 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:07,521 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:07,522 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:07,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:27:07,525 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2022-11-18 18:27:07,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:07,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1495053983, now seen corresponding path program 1 times [2022-11-18 18:27:07,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:07,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871571027] [2022-11-18 18:27:07,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:07,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:07,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:07,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:07,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:07,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871571027] [2022-11-18 18:27:07,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871571027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:07,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:07,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:27:07,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631806111] [2022-11-18 18:27:07,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:07,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:27:07,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:07,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:27:07,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:27:07,665 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 191 [2022-11-18 18:27:07,666 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 167 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:07,666 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:07,666 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 191 [2022-11-18 18:27:07,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:07,785 INFO L130 PetriNetUnfolder]: 20/231 cut-off events. [2022-11-18 18:27:07,785 INFO L131 PetriNetUnfolder]: For 22/23 co-relation queries the response was YES. [2022-11-18 18:27:07,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 231 events. 20/231 cut-off events. For 22/23 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 783 event pairs, 13 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 273. Up to 40 conditions per place. [2022-11-18 18:27:07,789 INFO L137 encePairwiseOnDemand]: 176/191 looper letters, 22 selfloop transitions, 9 changer transitions 0/162 dead transitions. [2022-11-18 18:27:07,789 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 162 transitions, 395 flow [2022-11-18 18:27:07,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:27:07,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:27:07,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 490 transitions. [2022-11-18 18:27:07,792 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8551483420593369 [2022-11-18 18:27:07,792 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 490 transitions. [2022-11-18 18:27:07,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 490 transitions. [2022-11-18 18:27:07,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:27:07,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 490 transitions. [2022-11-18 18:27:07,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:07,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:07,798 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:07,798 INFO L175 Difference]: Start difference. First operand has 172 places, 167 transitions, 342 flow. Second operand 3 states and 490 transitions. [2022-11-18 18:27:07,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 162 transitions, 395 flow [2022-11-18 18:27:07,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 162 transitions, 391 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:27:07,808 INFO L231 Difference]: Finished difference. Result has 166 places, 161 transitions, 344 flow [2022-11-18 18:27:07,809 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=166, PETRI_TRANSITIONS=161} [2022-11-18 18:27:07,812 INFO L288 CegarLoopForPetriNet]: 177 programPoint places, -11 predicate places. [2022-11-18 18:27:07,812 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 161 transitions, 344 flow [2022-11-18 18:27:07,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:07,813 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:07,813 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:07,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:27:07,814 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2022-11-18 18:27:07,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:07,815 INFO L85 PathProgramCache]: Analyzing trace with hash -2067158046, now seen corresponding path program 1 times [2022-11-18 18:27:07,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:07,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46063419] [2022-11-18 18:27:07,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:07,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:07,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:07,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:07,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:07,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46063419] [2022-11-18 18:27:07,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46063419] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:07,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:07,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:27:07,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833708908] [2022-11-18 18:27:07,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:07,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:27:07,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:07,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:27:07,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:27:07,891 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 191 [2022-11-18 18:27:07,892 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 161 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:07,892 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:07,892 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 191 [2022-11-18 18:27:07,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:07,978 INFO L130 PetriNetUnfolder]: 20/217 cut-off events. [2022-11-18 18:27:07,978 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 18:27:07,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 217 events. 20/217 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 578 event pairs, 8 based on Foata normal form. 1/202 useless extension candidates. Maximal degree in co-relation 233. Up to 41 conditions per place. [2022-11-18 18:27:07,980 INFO L137 encePairwiseOnDemand]: 176/191 looper letters, 20 selfloop transitions, 8 changer transitions 5/156 dead transitions. [2022-11-18 18:27:07,980 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 156 transitions, 395 flow [2022-11-18 18:27:07,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:27:07,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:27:07,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 489 transitions. [2022-11-18 18:27:07,982 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8534031413612565 [2022-11-18 18:27:07,982 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 489 transitions. [2022-11-18 18:27:07,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 489 transitions. [2022-11-18 18:27:07,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:27:07,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 489 transitions. [2022-11-18 18:27:07,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:07,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:07,987 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:07,988 INFO L175 Difference]: Start difference. First operand has 166 places, 161 transitions, 344 flow. Second operand 3 states and 489 transitions. [2022-11-18 18:27:07,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 156 transitions, 395 flow [2022-11-18 18:27:07,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 156 transitions, 377 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:27:07,992 INFO L231 Difference]: Finished difference. Result has 160 places, 150 transitions, 319 flow [2022-11-18 18:27:07,993 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=319, PETRI_PLACES=160, PETRI_TRANSITIONS=150} [2022-11-18 18:27:07,993 INFO L288 CegarLoopForPetriNet]: 177 programPoint places, -17 predicate places. [2022-11-18 18:27:07,994 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 150 transitions, 319 flow [2022-11-18 18:27:07,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:07,995 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:07,995 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:07,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:27:07,995 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2022-11-18 18:27:07,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:07,996 INFO L85 PathProgramCache]: Analyzing trace with hash -301478275, now seen corresponding path program 1 times [2022-11-18 18:27:07,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:07,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666354668] [2022-11-18 18:27:07,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:07,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:08,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:08,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:08,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:08,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666354668] [2022-11-18 18:27:08,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666354668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:08,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:08,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:27:08,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426321033] [2022-11-18 18:27:08,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:08,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:27:08,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:08,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:27:08,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:27:08,057 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 191 [2022-11-18 18:27:08,058 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 150 transitions, 319 flow. Second operand has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:08,058 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:08,059 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 191 [2022-11-18 18:27:08,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:08,136 INFO L130 PetriNetUnfolder]: 21/211 cut-off events. [2022-11-18 18:27:08,137 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-18 18:27:08,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 211 events. 21/211 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 581 event pairs, 19 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 98. Up to 65 conditions per place. [2022-11-18 18:27:08,138 INFO L137 encePairwiseOnDemand]: 188/191 looper letters, 27 selfloop transitions, 2 changer transitions 0/150 dead transitions. [2022-11-18 18:27:08,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 150 transitions, 378 flow [2022-11-18 18:27:08,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:27:08,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:27:08,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 477 transitions. [2022-11-18 18:27:08,141 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8324607329842932 [2022-11-18 18:27:08,141 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 477 transitions. [2022-11-18 18:27:08,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 477 transitions. [2022-11-18 18:27:08,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:27:08,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 477 transitions. [2022-11-18 18:27:08,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:08,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:08,146 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:08,146 INFO L175 Difference]: Start difference. First operand has 160 places, 150 transitions, 319 flow. Second operand 3 states and 477 transitions. [2022-11-18 18:27:08,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 150 transitions, 378 flow [2022-11-18 18:27:08,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 150 transitions, 362 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:27:08,160 INFO L231 Difference]: Finished difference. Result has 154 places, 149 transitions, 305 flow [2022-11-18 18:27:08,161 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=305, PETRI_PLACES=154, PETRI_TRANSITIONS=149} [2022-11-18 18:27:08,162 INFO L288 CegarLoopForPetriNet]: 177 programPoint places, -23 predicate places. [2022-11-18 18:27:08,162 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 149 transitions, 305 flow [2022-11-18 18:27:08,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:08,163 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:08,163 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:08,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:27:08,163 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2022-11-18 18:27:08,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:08,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1650629032, now seen corresponding path program 1 times [2022-11-18 18:27:08,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:08,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003008108] [2022-11-18 18:27:08,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:08,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:08,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:08,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:08,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:08,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003008108] [2022-11-18 18:27:08,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003008108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:08,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:08,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:27:08,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624890547] [2022-11-18 18:27:08,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:08,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:27:08,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:08,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:27:08,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:27:08,221 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 191 [2022-11-18 18:27:08,222 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 149 transitions, 305 flow. Second operand has 3 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:08,222 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:08,223 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 191 [2022-11-18 18:27:08,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:08,303 INFO L130 PetriNetUnfolder]: 21/218 cut-off events. [2022-11-18 18:27:08,303 INFO L131 PetriNetUnfolder]: For 22/23 co-relation queries the response was YES. [2022-11-18 18:27:08,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 295 conditions, 218 events. 21/218 cut-off events. For 22/23 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 753 event pairs, 4 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 233. Up to 65 conditions per place. [2022-11-18 18:27:08,305 INFO L137 encePairwiseOnDemand]: 188/191 looper letters, 27 selfloop transitions, 2 changer transitions 0/149 dead transitions. [2022-11-18 18:27:08,306 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 149 transitions, 364 flow [2022-11-18 18:27:08,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:27:08,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:27:08,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 477 transitions. [2022-11-18 18:27:08,308 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8324607329842932 [2022-11-18 18:27:08,308 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 477 transitions. [2022-11-18 18:27:08,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 477 transitions. [2022-11-18 18:27:08,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:27:08,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 477 transitions. [2022-11-18 18:27:08,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:08,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:08,313 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:08,313 INFO L175 Difference]: Start difference. First operand has 154 places, 149 transitions, 305 flow. Second operand 3 states and 477 transitions. [2022-11-18 18:27:08,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 149 transitions, 364 flow [2022-11-18 18:27:08,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 149 transitions, 360 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:27:08,317 INFO L231 Difference]: Finished difference. Result has 153 places, 148 transitions, 303 flow [2022-11-18 18:27:08,317 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=303, PETRI_PLACES=153, PETRI_TRANSITIONS=148} [2022-11-18 18:27:08,318 INFO L288 CegarLoopForPetriNet]: 177 programPoint places, -24 predicate places. [2022-11-18 18:27:08,318 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 148 transitions, 303 flow [2022-11-18 18:27:08,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:08,319 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:08,319 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:08,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:27:08,320 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2022-11-18 18:27:08,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:08,320 INFO L85 PathProgramCache]: Analyzing trace with hash 736781079, now seen corresponding path program 1 times [2022-11-18 18:27:08,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:08,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355526553] [2022-11-18 18:27:08,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:08,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:08,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:08,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:08,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:08,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355526553] [2022-11-18 18:27:08,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355526553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:08,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:08,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:27:08,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109662794] [2022-11-18 18:27:08,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:08,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:27:08,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:08,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:27:08,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:27:08,934 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 191 [2022-11-18 18:27:08,937 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 148 transitions, 303 flow. Second operand has 6 states, 6 states have (on average 167.83333333333334) internal successors, (1007), 6 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:08,937 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:08,937 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 191 [2022-11-18 18:27:08,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:09,028 INFO L130 PetriNetUnfolder]: 0/147 cut-off events. [2022-11-18 18:27:09,029 INFO L131 PetriNetUnfolder]: For 1/8 co-relation queries the response was YES. [2022-11-18 18:27:09,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 147 events. 0/147 cut-off events. For 1/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 134 event pairs, 0 based on Foata normal form. 4/144 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2022-11-18 18:27:09,030 INFO L137 encePairwiseOnDemand]: 186/191 looper letters, 14 selfloop transitions, 4 changer transitions 0/147 dead transitions. [2022-11-18 18:27:09,030 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 147 transitions, 337 flow [2022-11-18 18:27:09,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:27:09,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:27:09,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1015 transitions. [2022-11-18 18:27:09,034 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8856893542757417 [2022-11-18 18:27:09,034 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1015 transitions. [2022-11-18 18:27:09,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1015 transitions. [2022-11-18 18:27:09,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:27:09,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1015 transitions. [2022-11-18 18:27:09,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 169.16666666666666) internal successors, (1015), 6 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,042 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,042 INFO L175 Difference]: Start difference. First operand has 153 places, 148 transitions, 303 flow. Second operand 6 states and 1015 transitions. [2022-11-18 18:27:09,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 147 transitions, 337 flow [2022-11-18 18:27:09,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 147 transitions, 333 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:27:09,045 INFO L231 Difference]: Finished difference. Result has 155 places, 147 transitions, 305 flow [2022-11-18 18:27:09,046 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=305, PETRI_PLACES=155, PETRI_TRANSITIONS=147} [2022-11-18 18:27:09,047 INFO L288 CegarLoopForPetriNet]: 177 programPoint places, -22 predicate places. [2022-11-18 18:27:09,048 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 147 transitions, 305 flow [2022-11-18 18:27:09,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.83333333333334) internal successors, (1007), 6 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,049 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:09,049 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:09,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 18:27:09,050 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2022-11-18 18:27:09,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:09,050 INFO L85 PathProgramCache]: Analyzing trace with hash -483038413, now seen corresponding path program 1 times [2022-11-18 18:27:09,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:09,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098895026] [2022-11-18 18:27:09,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:09,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:09,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:09,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:09,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098895026] [2022-11-18 18:27:09,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098895026] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:09,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:09,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:27:09,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933817266] [2022-11-18 18:27:09,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:09,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:27:09,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:09,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:27:09,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:27:09,109 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 191 [2022-11-18 18:27:09,110 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 147 transitions, 305 flow. Second operand has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,110 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:09,110 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 191 [2022-11-18 18:27:09,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:09,187 INFO L130 PetriNetUnfolder]: 20/206 cut-off events. [2022-11-18 18:27:09,187 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 18:27:09,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 206 events. 20/206 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 532 event pairs, 18 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 280. Up to 62 conditions per place. [2022-11-18 18:27:09,189 INFO L137 encePairwiseOnDemand]: 188/191 looper letters, 26 selfloop transitions, 2 changer transitions 0/147 dead transitions. [2022-11-18 18:27:09,189 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 147 transitions, 362 flow [2022-11-18 18:27:09,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:27:09,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:27:09,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 476 transitions. [2022-11-18 18:27:09,192 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8307155322862129 [2022-11-18 18:27:09,192 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 476 transitions. [2022-11-18 18:27:09,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 476 transitions. [2022-11-18 18:27:09,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:27:09,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 476 transitions. [2022-11-18 18:27:09,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,196 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,197 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,197 INFO L175 Difference]: Start difference. First operand has 155 places, 147 transitions, 305 flow. Second operand 3 states and 476 transitions. [2022-11-18 18:27:09,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 147 transitions, 362 flow [2022-11-18 18:27:09,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 147 transitions, 355 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 18:27:09,200 INFO L231 Difference]: Finished difference. Result has 152 places, 146 transitions, 300 flow [2022-11-18 18:27:09,201 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=300, PETRI_PLACES=152, PETRI_TRANSITIONS=146} [2022-11-18 18:27:09,204 INFO L288 CegarLoopForPetriNet]: 177 programPoint places, -25 predicate places. [2022-11-18 18:27:09,205 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 146 transitions, 300 flow [2022-11-18 18:27:09,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,205 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:09,206 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:09,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 18:27:09,206 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2022-11-18 18:27:09,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:09,207 INFO L85 PathProgramCache]: Analyzing trace with hash 442657174, now seen corresponding path program 1 times [2022-11-18 18:27:09,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:09,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080085357] [2022-11-18 18:27:09,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:09,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:09,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:09,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:09,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:09,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080085357] [2022-11-18 18:27:09,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080085357] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:09,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:09,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:27:09,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507542840] [2022-11-18 18:27:09,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:09,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:27:09,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:09,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:27:09,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:27:09,302 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 191 [2022-11-18 18:27:09,303 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 146 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,303 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:09,303 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 191 [2022-11-18 18:27:09,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:09,388 INFO L130 PetriNetUnfolder]: 20/213 cut-off events. [2022-11-18 18:27:09,389 INFO L131 PetriNetUnfolder]: For 21/22 co-relation queries the response was YES. [2022-11-18 18:27:09,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 288 conditions, 213 events. 20/213 cut-off events. For 21/22 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 711 event pairs, 8 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 221. Up to 62 conditions per place. [2022-11-18 18:27:09,390 INFO L137 encePairwiseOnDemand]: 188/191 looper letters, 26 selfloop transitions, 2 changer transitions 0/146 dead transitions. [2022-11-18 18:27:09,391 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 146 transitions, 357 flow [2022-11-18 18:27:09,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:27:09,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:27:09,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 476 transitions. [2022-11-18 18:27:09,393 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8307155322862129 [2022-11-18 18:27:09,394 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 476 transitions. [2022-11-18 18:27:09,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 476 transitions. [2022-11-18 18:27:09,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:27:09,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 476 transitions. [2022-11-18 18:27:09,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,398 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,399 INFO L175 Difference]: Start difference. First operand has 152 places, 146 transitions, 300 flow. Second operand 3 states and 476 transitions. [2022-11-18 18:27:09,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 146 transitions, 357 flow [2022-11-18 18:27:09,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 146 transitions, 353 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:27:09,403 INFO L231 Difference]: Finished difference. Result has 151 places, 145 transitions, 298 flow [2022-11-18 18:27:09,404 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=151, PETRI_TRANSITIONS=145} [2022-11-18 18:27:09,405 INFO L288 CegarLoopForPetriNet]: 177 programPoint places, -26 predicate places. [2022-11-18 18:27:09,405 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 145 transitions, 298 flow [2022-11-18 18:27:09,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,406 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:09,406 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:09,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 18:27:09,407 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2022-11-18 18:27:09,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:09,407 INFO L85 PathProgramCache]: Analyzing trace with hash 213218760, now seen corresponding path program 1 times [2022-11-18 18:27:09,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:09,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720252059] [2022-11-18 18:27:09,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:09,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:09,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:09,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:09,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720252059] [2022-11-18 18:27:09,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720252059] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:09,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:09,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:27:09,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849526453] [2022-11-18 18:27:09,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:09,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:27:09,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:09,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:27:09,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:27:09,467 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 191 [2022-11-18 18:27:09,468 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 145 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,468 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:09,468 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 191 [2022-11-18 18:27:09,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:09,534 INFO L130 PetriNetUnfolder]: 19/202 cut-off events. [2022-11-18 18:27:09,534 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 18:27:09,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 202 events. 19/202 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 524 event pairs, 17 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 262. Up to 59 conditions per place. [2022-11-18 18:27:09,537 INFO L137 encePairwiseOnDemand]: 188/191 looper letters, 25 selfloop transitions, 2 changer transitions 0/145 dead transitions. [2022-11-18 18:27:09,538 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 145 transitions, 353 flow [2022-11-18 18:27:09,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:27:09,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:27:09,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 475 transitions. [2022-11-18 18:27:09,540 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8289703315881326 [2022-11-18 18:27:09,540 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 475 transitions. [2022-11-18 18:27:09,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 475 transitions. [2022-11-18 18:27:09,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:27:09,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 475 transitions. [2022-11-18 18:27:09,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,545 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,545 INFO L175 Difference]: Start difference. First operand has 151 places, 145 transitions, 298 flow. Second operand 3 states and 475 transitions. [2022-11-18 18:27:09,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 145 transitions, 353 flow [2022-11-18 18:27:09,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 145 transitions, 349 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:27:09,549 INFO L231 Difference]: Finished difference. Result has 150 places, 144 transitions, 296 flow [2022-11-18 18:27:09,550 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=296, PETRI_PLACES=150, PETRI_TRANSITIONS=144} [2022-11-18 18:27:09,551 INFO L288 CegarLoopForPetriNet]: 177 programPoint places, -27 predicate places. [2022-11-18 18:27:09,551 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 144 transitions, 296 flow [2022-11-18 18:27:09,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,552 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:09,552 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:09,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 18:27:09,553 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2022-11-18 18:27:09,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:09,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1628807181, now seen corresponding path program 1 times [2022-11-18 18:27:09,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:09,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171340179] [2022-11-18 18:27:09,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:09,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:09,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:09,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:09,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171340179] [2022-11-18 18:27:09,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171340179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:09,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:09,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:27:09,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641692823] [2022-11-18 18:27:09,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:09,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:27:09,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:09,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:27:09,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:27:09,605 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 191 [2022-11-18 18:27:09,605 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 144 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,606 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:09,606 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 191 [2022-11-18 18:27:09,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:09,676 INFO L130 PetriNetUnfolder]: 19/209 cut-off events. [2022-11-18 18:27:09,676 INFO L131 PetriNetUnfolder]: For 20/21 co-relation queries the response was YES. [2022-11-18 18:27:09,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 209 events. 19/209 cut-off events. For 20/21 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 681 event pairs, 12 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 214. Up to 59 conditions per place. [2022-11-18 18:27:09,678 INFO L137 encePairwiseOnDemand]: 188/191 looper letters, 25 selfloop transitions, 2 changer transitions 0/144 dead transitions. [2022-11-18 18:27:09,678 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 144 transitions, 351 flow [2022-11-18 18:27:09,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:27:09,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:27:09,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 475 transitions. [2022-11-18 18:27:09,680 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8289703315881326 [2022-11-18 18:27:09,680 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 475 transitions. [2022-11-18 18:27:09,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 475 transitions. [2022-11-18 18:27:09,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:27:09,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 475 transitions. [2022-11-18 18:27:09,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,687 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,687 INFO L175 Difference]: Start difference. First operand has 150 places, 144 transitions, 296 flow. Second operand 3 states and 475 transitions. [2022-11-18 18:27:09,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 144 transitions, 351 flow [2022-11-18 18:27:09,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 144 transitions, 347 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:27:09,690 INFO L231 Difference]: Finished difference. Result has 149 places, 143 transitions, 294 flow [2022-11-18 18:27:09,691 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=294, PETRI_PLACES=149, PETRI_TRANSITIONS=143} [2022-11-18 18:27:09,692 INFO L288 CegarLoopForPetriNet]: 177 programPoint places, -28 predicate places. [2022-11-18 18:27:09,692 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 143 transitions, 294 flow [2022-11-18 18:27:09,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,693 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:09,693 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:09,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 18:27:09,694 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2022-11-18 18:27:09,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:09,694 INFO L85 PathProgramCache]: Analyzing trace with hash -817414818, now seen corresponding path program 1 times [2022-11-18 18:27:09,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:09,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816783228] [2022-11-18 18:27:09,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:09,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:09,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:09,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:09,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:09,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816783228] [2022-11-18 18:27:09,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816783228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:09,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:09,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:27:09,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597830156] [2022-11-18 18:27:09,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:09,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:27:09,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:09,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:27:09,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:27:09,738 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 191 [2022-11-18 18:27:09,739 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 143 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,739 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:09,739 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 191 [2022-11-18 18:27:09,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:09,806 INFO L130 PetriNetUnfolder]: 18/198 cut-off events. [2022-11-18 18:27:09,806 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 18:27:09,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 198 events. 18/198 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 526 event pairs, 16 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 264. Up to 56 conditions per place. [2022-11-18 18:27:09,807 INFO L137 encePairwiseOnDemand]: 188/191 looper letters, 24 selfloop transitions, 2 changer transitions 0/143 dead transitions. [2022-11-18 18:27:09,807 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 143 transitions, 347 flow [2022-11-18 18:27:09,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:27:09,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:27:09,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 474 transitions. [2022-11-18 18:27:09,809 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8272251308900523 [2022-11-18 18:27:09,810 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 474 transitions. [2022-11-18 18:27:09,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 474 transitions. [2022-11-18 18:27:09,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:27:09,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 474 transitions. [2022-11-18 18:27:09,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,814 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,814 INFO L175 Difference]: Start difference. First operand has 149 places, 143 transitions, 294 flow. Second operand 3 states and 474 transitions. [2022-11-18 18:27:09,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 143 transitions, 347 flow [2022-11-18 18:27:09,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 143 transitions, 343 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:27:09,822 INFO L231 Difference]: Finished difference. Result has 148 places, 142 transitions, 292 flow [2022-11-18 18:27:09,822 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=292, PETRI_PLACES=148, PETRI_TRANSITIONS=142} [2022-11-18 18:27:09,824 INFO L288 CegarLoopForPetriNet]: 177 programPoint places, -29 predicate places. [2022-11-18 18:27:09,824 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 142 transitions, 292 flow [2022-11-18 18:27:09,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,824 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:09,825 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:09,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 18:27:09,826 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2022-11-18 18:27:09,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:09,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1030947647, now seen corresponding path program 1 times [2022-11-18 18:27:09,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:09,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963784993] [2022-11-18 18:27:09,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:09,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:09,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:09,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:09,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963784993] [2022-11-18 18:27:09,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963784993] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:09,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:09,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:27:09,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111287549] [2022-11-18 18:27:09,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:09,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:27:09,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:09,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:27:09,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:27:09,875 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 191 [2022-11-18 18:27:09,876 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 142 transitions, 292 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,876 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:09,876 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 191 [2022-11-18 18:27:09,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:09,943 INFO L130 PetriNetUnfolder]: 18/197 cut-off events. [2022-11-18 18:27:09,943 INFO L131 PetriNetUnfolder]: For 19/20 co-relation queries the response was YES. [2022-11-18 18:27:09,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 197 events. 18/197 cut-off events. For 19/20 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 619 event pairs, 16 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 199. Up to 56 conditions per place. [2022-11-18 18:27:09,944 INFO L137 encePairwiseOnDemand]: 188/191 looper letters, 24 selfloop transitions, 2 changer transitions 1/142 dead transitions. [2022-11-18 18:27:09,944 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 142 transitions, 345 flow [2022-11-18 18:27:09,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:27:09,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:27:09,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 474 transitions. [2022-11-18 18:27:09,947 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8272251308900523 [2022-11-18 18:27:09,947 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 474 transitions. [2022-11-18 18:27:09,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 474 transitions. [2022-11-18 18:27:09,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:27:09,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 474 transitions. [2022-11-18 18:27:09,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,951 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,951 INFO L175 Difference]: Start difference. First operand has 148 places, 142 transitions, 292 flow. Second operand 3 states and 474 transitions. [2022-11-18 18:27:09,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 142 transitions, 345 flow [2022-11-18 18:27:09,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 142 transitions, 341 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:27:09,955 INFO L231 Difference]: Finished difference. Result has 147 places, 140 transitions, 288 flow [2022-11-18 18:27:09,955 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=288, PETRI_PLACES=147, PETRI_TRANSITIONS=140} [2022-11-18 18:27:09,956 INFO L288 CegarLoopForPetriNet]: 177 programPoint places, -30 predicate places. [2022-11-18 18:27:09,957 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 140 transitions, 288 flow [2022-11-18 18:27:09,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:09,958 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:09,959 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:09,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 18:27:09,959 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2022-11-18 18:27:09,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:09,960 INFO L85 PathProgramCache]: Analyzing trace with hash -469153590, now seen corresponding path program 1 times [2022-11-18 18:27:09,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:09,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247584992] [2022-11-18 18:27:09,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:09,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:09,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:10,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:10,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:10,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247584992] [2022-11-18 18:27:10,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247584992] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:10,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:10,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:27:10,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581213027] [2022-11-18 18:27:10,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:10,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:27:10,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:10,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:27:10,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:27:10,471 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 191 [2022-11-18 18:27:10,472 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 140 transitions, 288 flow. Second operand has 6 states, 6 states have (on average 168.83333333333334) internal successors, (1013), 6 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:10,472 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:10,472 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 191 [2022-11-18 18:27:10,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:10,533 INFO L130 PetriNetUnfolder]: 0/139 cut-off events. [2022-11-18 18:27:10,533 INFO L131 PetriNetUnfolder]: For 1/8 co-relation queries the response was YES. [2022-11-18 18:27:10,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 139 events. 0/139 cut-off events. For 1/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 113 event pairs, 0 based on Foata normal form. 1/140 useless extension candidates. Maximal degree in co-relation 0. Up to 13 conditions per place. [2022-11-18 18:27:10,534 INFO L137 encePairwiseOnDemand]: 186/191 looper letters, 0 selfloop transitions, 0 changer transitions 139/139 dead transitions. [2022-11-18 18:27:10,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 139 transitions, 318 flow [2022-11-18 18:27:10,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:27:10,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:27:10,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1013 transitions. [2022-11-18 18:27:10,538 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8839441535776614 [2022-11-18 18:27:10,538 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1013 transitions. [2022-11-18 18:27:10,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1013 transitions. [2022-11-18 18:27:10,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:27:10,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1013 transitions. [2022-11-18 18:27:10,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 168.83333333333334) internal successors, (1013), 6 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:10,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:10,545 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:10,545 INFO L175 Difference]: Start difference. First operand has 147 places, 140 transitions, 288 flow. Second operand 6 states and 1013 transitions. [2022-11-18 18:27:10,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 139 transitions, 318 flow [2022-11-18 18:27:10,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 139 transitions, 314 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:27:10,548 INFO L231 Difference]: Finished difference. Result has 148 places, 0 transitions, 0 flow [2022-11-18 18:27:10,548 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=148, PETRI_TRANSITIONS=0} [2022-11-18 18:27:10,549 INFO L288 CegarLoopForPetriNet]: 177 programPoint places, -29 predicate places. [2022-11-18 18:27:10,549 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 0 transitions, 0 flow [2022-11-18 18:27:10,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.83333333333334) internal successors, (1013), 6 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:10,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (41 of 42 remaining) [2022-11-18 18:27:10,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (40 of 42 remaining) [2022-11-18 18:27:10,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (39 of 42 remaining) [2022-11-18 18:27:10,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (38 of 42 remaining) [2022-11-18 18:27:10,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (37 of 42 remaining) [2022-11-18 18:27:10,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (36 of 42 remaining) [2022-11-18 18:27:10,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (35 of 42 remaining) [2022-11-18 18:27:10,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (34 of 42 remaining) [2022-11-18 18:27:10,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (33 of 42 remaining) [2022-11-18 18:27:10,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (32 of 42 remaining) [2022-11-18 18:27:10,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (31 of 42 remaining) [2022-11-18 18:27:10,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (30 of 42 remaining) [2022-11-18 18:27:10,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (29 of 42 remaining) [2022-11-18 18:27:10,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (28 of 42 remaining) [2022-11-18 18:27:10,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (27 of 42 remaining) [2022-11-18 18:27:10,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (26 of 42 remaining) [2022-11-18 18:27:10,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 42 remaining) [2022-11-18 18:27:10,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 42 remaining) [2022-11-18 18:27:10,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 42 remaining) [2022-11-18 18:27:10,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 42 remaining) [2022-11-18 18:27:10,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 42 remaining) [2022-11-18 18:27:10,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (20 of 42 remaining) [2022-11-18 18:27:10,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (19 of 42 remaining) [2022-11-18 18:27:10,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (18 of 42 remaining) [2022-11-18 18:27:10,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 42 remaining) [2022-11-18 18:27:10,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 42 remaining) [2022-11-18 18:27:10,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (15 of 42 remaining) [2022-11-18 18:27:10,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (14 of 42 remaining) [2022-11-18 18:27:10,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (13 of 42 remaining) [2022-11-18 18:27:10,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (12 of 42 remaining) [2022-11-18 18:27:10,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (11 of 42 remaining) [2022-11-18 18:27:10,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (10 of 42 remaining) [2022-11-18 18:27:10,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (9 of 42 remaining) [2022-11-18 18:27:10,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (8 of 42 remaining) [2022-11-18 18:27:10,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (7 of 42 remaining) [2022-11-18 18:27:10,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (6 of 42 remaining) [2022-11-18 18:27:10,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (5 of 42 remaining) [2022-11-18 18:27:10,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (4 of 42 remaining) [2022-11-18 18:27:10,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (3 of 42 remaining) [2022-11-18 18:27:10,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (2 of 42 remaining) [2022-11-18 18:27:10,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (1 of 42 remaining) [2022-11-18 18:27:10,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (0 of 42 remaining) [2022-11-18 18:27:10,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 18:27:10,564 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:10,570 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 18:27:10,571 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 18:27:10,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:27:10 BasicIcfg [2022-11-18 18:27:10,577 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 18:27:10,577 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 18:27:10,578 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 18:27:10,578 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 18:27:10,578 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:27:06" (3/4) ... [2022-11-18 18:27:10,582 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 18:27:10,588 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-18 18:27:10,588 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-18 18:27:10,595 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-18 18:27:10,595 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 18:27:10,595 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 18:27:10,596 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 18:27:10,641 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182ac92f-2c6e-4b19-ba2d-7b5c7efc0c90/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 18:27:10,641 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 18:27:10,642 INFO L158 Benchmark]: Toolchain (without parser) took 5671.61ms. Allocated memory was 104.9MB in the beginning and 176.2MB in the end (delta: 71.3MB). Free memory was 72.0MB in the beginning and 86.6MB in the end (delta: -14.6MB). Peak memory consumption was 57.0MB. Max. memory is 16.1GB. [2022-11-18 18:27:10,642 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 77.6MB. Free memory was 42.3MB in the beginning and 42.2MB in the end (delta: 44.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:27:10,643 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.80ms. Allocated memory is still 104.9MB. Free memory was 71.8MB in the beginning and 60.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 18:27:10,643 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.61ms. Allocated memory is still 104.9MB. Free memory was 60.7MB in the beginning and 58.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:27:10,644 INFO L158 Benchmark]: Boogie Preprocessor took 29.30ms. Allocated memory is still 104.9MB. Free memory was 58.9MB in the beginning and 57.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:27:10,644 INFO L158 Benchmark]: RCFGBuilder took 651.27ms. Allocated memory is still 104.9MB. Free memory was 57.4MB in the beginning and 75.8MB in the end (delta: -18.4MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2022-11-18 18:27:10,644 INFO L158 Benchmark]: TraceAbstraction took 4530.56ms. Allocated memory was 104.9MB in the beginning and 176.2MB in the end (delta: 71.3MB). Free memory was 75.0MB in the beginning and 89.7MB in the end (delta: -14.8MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. [2022-11-18 18:27:10,644 INFO L158 Benchmark]: Witness Printer took 63.61ms. Allocated memory is still 176.2MB. Free memory was 89.7MB in the beginning and 86.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:27:10,647 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 77.6MB. Free memory was 42.3MB in the beginning and 42.2MB in the end (delta: 44.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.80ms. Allocated memory is still 104.9MB. Free memory was 71.8MB in the beginning and 60.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.61ms. Allocated memory is still 104.9MB. Free memory was 60.7MB in the beginning and 58.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.30ms. Allocated memory is still 104.9MB. Free memory was 58.9MB in the beginning and 57.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 651.27ms. Allocated memory is still 104.9MB. Free memory was 57.4MB in the beginning and 75.8MB in the end (delta: -18.4MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4530.56ms. Allocated memory was 104.9MB in the beginning and 176.2MB in the end (delta: 71.3MB). Free memory was 75.0MB in the beginning and 89.7MB in the end (delta: -14.8MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. * Witness Printer took 63.61ms. Allocated memory is still 176.2MB. Free memory was 89.7MB in the beginning and 86.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 286 locations, 42 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.3s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 302 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 426 IncrementalHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 302 mSDtfsCounter, 426 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=354occurred in iteration=0, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 790 NumberOfCodeBlocks, 790 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 776 ConstructedInterpolants, 0 QuantifiedInterpolants, 962 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 24 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 18:27:10,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182ac92f-2c6e-4b19-ba2d-7b5c7efc0c90/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE