./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-deagle/airline-15.i --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_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/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_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-deagle/airline-15.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/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_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/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 c250d04a54594f141e4a6230ba64a939d316d8b15028517201aca3da084476d7 --- 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 20:32:32,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:32:32,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:32:32,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:32:32,359 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:32:32,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:32:32,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:32:32,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:32:32,367 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:32:32,368 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:32:32,369 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:32:32,371 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:32:32,371 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:32:32,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:32:32,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:32:32,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:32:32,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:32:32,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:32:32,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:32:32,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:32:32,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:32:32,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:32:32,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:32:32,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:32:32,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:32:32,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:32:32,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:32:32,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:32:32,396 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:32:32,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:32:32,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:32:32,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:32:32,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:32:32,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:32:32,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:32:32,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:32:32,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:32:32,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:32:32,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:32:32,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:32:32,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:32:32,407 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:32:32,433 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:32:32,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:32:32,433 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:32:32,434 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:32:32,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:32:32,435 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:32:32,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:32:32,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:32:32,436 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:32:32,437 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:32:32,437 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:32:32,437 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:32:32,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:32:32,438 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:32:32,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:32:32,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:32:32,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:32:32,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:32:32,439 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:32:32,439 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:32:32,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:32:32,440 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:32:32,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:32:32,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:32:32,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:32:32,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:32:32,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:32:32,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:32:32,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:32:32,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:32:32,442 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:32:32,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:32:32,442 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:32:32,443 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:32:32,443 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:32:32,443 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_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c250d04a54594f141e4a6230ba64a939d316d8b15028517201aca3da084476d7 [2022-11-18 20:32:32,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:32:32,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:32:32,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:32:32,806 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:32:32,809 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:32:32,811 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-deagle/airline-15.i [2022-11-18 20:32:32,914 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/bin/uautomizer-TMbwUNV5ro/data/04c3df78a/cbab16a61cc44ad48862d227758fb736/FLAG5cb131981 [2022-11-18 20:32:33,571 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:32:33,571 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/sv-benchmarks/c/pthread-deagle/airline-15.i [2022-11-18 20:32:33,596 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/bin/uautomizer-TMbwUNV5ro/data/04c3df78a/cbab16a61cc44ad48862d227758fb736/FLAG5cb131981 [2022-11-18 20:32:33,833 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/bin/uautomizer-TMbwUNV5ro/data/04c3df78a/cbab16a61cc44ad48862d227758fb736 [2022-11-18 20:32:33,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:32:33,840 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:32:33,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:32:33,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:32:33,852 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:32:33,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:32:33" (1/1) ... [2022-11-18 20:32:33,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8050fc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:33, skipping insertion in model container [2022-11-18 20:32:33,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:32:33" (1/1) ... [2022-11-18 20:32:33,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:32:33,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:32:34,354 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_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/sv-benchmarks/c/pthread-deagle/airline-15.i[32101,32114] [2022-11-18 20:32:34,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:32:34,366 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:32:34,444 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_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/sv-benchmarks/c/pthread-deagle/airline-15.i[32101,32114] [2022-11-18 20:32:34,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:32:34,488 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:32:34,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:34 WrapperNode [2022-11-18 20:32:34,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:32:34,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:32:34,491 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:32:34,491 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:32:34,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:34" (1/1) ... [2022-11-18 20:32:34,520 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:34" (1/1) ... [2022-11-18 20:32:34,547 INFO L138 Inliner]: procedures = 162, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 80 [2022-11-18 20:32:34,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:32:34,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:32:34,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:32:34,548 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:32:34,557 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:34" (1/1) ... [2022-11-18 20:32:34,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:34" (1/1) ... [2022-11-18 20:32:34,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:34" (1/1) ... [2022-11-18 20:32:34,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:34" (1/1) ... [2022-11-18 20:32:34,589 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:34" (1/1) ... [2022-11-18 20:32:34,593 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:34" (1/1) ... [2022-11-18 20:32:34,595 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:34" (1/1) ... [2022-11-18 20:32:34,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:34" (1/1) ... [2022-11-18 20:32:34,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:32:34,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:32:34,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:32:34,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:32:34,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:34" (1/1) ... [2022-11-18 20:32:34,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:32:34,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:32:34,652 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:32:34,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:32:34,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:32:34,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:32:34,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:32:34,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:32:34,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:32:34,716 INFO L130 BoogieDeclarations]: Found specification of procedure salethread [2022-11-18 20:32:34,716 INFO L138 BoogieDeclarations]: Found implementation of procedure salethread [2022-11-18 20:32:34,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:32:34,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:32:34,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:32:34,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:32:34,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:32:34,718 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 20:32:34,929 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:32:34,931 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:32:35,323 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:32:35,362 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:32:35,363 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 20:32:35,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:32:35 BoogieIcfgContainer [2022-11-18 20:32:35,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:32:35,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:32:35,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:32:35,374 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:32:35,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:32:33" (1/3) ... [2022-11-18 20:32:35,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65575b7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:32:35, skipping insertion in model container [2022-11-18 20:32:35,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:34" (2/3) ... [2022-11-18 20:32:35,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65575b7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:32:35, skipping insertion in model container [2022-11-18 20:32:35,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:32:35" (3/3) ... [2022-11-18 20:32:35,378 INFO L112 eAbstractionObserver]: Analyzing ICFG airline-15.i [2022-11-18 20:32:35,388 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:32:35,401 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:32:35,402 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-18 20:32:35,402 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:32:35,485 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-18 20:32:35,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 88 transitions, 184 flow [2022-11-18 20:32:35,658 INFO L130 PetriNetUnfolder]: 9/119 cut-off events. [2022-11-18 20:32:35,659 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:32:35,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 119 events. 9/119 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 238 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 58. Up to 4 conditions per place. [2022-11-18 20:32:35,666 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 88 transitions, 184 flow [2022-11-18 20:32:35,672 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 88 transitions, 184 flow [2022-11-18 20:32:35,692 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:32:35,707 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;@42fbdd19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:32:35,708 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-18 20:32:35,720 INFO L130 PetriNetUnfolder]: 0/20 cut-off events. [2022-11-18 20:32:35,720 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:32:35,720 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:32:35,721 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:32:35,722 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 20:32:35,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:35,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1999147629, now seen corresponding path program 1 times [2022-11-18 20:32:35,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:35,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107325104] [2022-11-18 20:32:35,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:35,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:35,997 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 20:32:35,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:35,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107325104] [2022-11-18 20:32:35,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107325104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:32:35,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:32:36,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:32:36,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982825553] [2022-11-18 20:32:36,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:32:36,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:32:36,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:36,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:32:36,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:32:36,050 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 88 [2022-11-18 20:32:36,054 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 88 transitions, 184 flow. Second operand has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states 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 20:32:36,054 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:32:36,054 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 88 [2022-11-18 20:32:36,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:32:36,104 INFO L130 PetriNetUnfolder]: 3/106 cut-off events. [2022-11-18 20:32:36,104 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 20:32:36,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 106 events. 3/106 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 215 event pairs, 0 based on Foata normal form. 6/98 useless extension candidates. Maximal degree in co-relation 50. Up to 8 conditions per place. [2022-11-18 20:32:36,107 INFO L137 encePairwiseOnDemand]: 80/88 looper letters, 7 selfloop transitions, 0 changer transitions 0/79 dead transitions. [2022-11-18 20:32:36,107 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 79 transitions, 180 flow [2022-11-18 20:32:36,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:32:36,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-18 20:32:36,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 159 transitions. [2022-11-18 20:32:36,123 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9034090909090909 [2022-11-18 20:32:36,124 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 159 transitions. [2022-11-18 20:32:36,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 159 transitions. [2022-11-18 20:32:36,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:32:36,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 159 transitions. [2022-11-18 20:32:36,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states 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 20:32:36,137 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states 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 20:32:36,138 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states 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 20:32:36,140 INFO L175 Difference]: Start difference. First operand has 85 places, 88 transitions, 184 flow. Second operand 2 states and 159 transitions. [2022-11-18 20:32:36,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 79 transitions, 180 flow [2022-11-18 20:32:36,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 79 transitions, 180 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:32:36,148 INFO L231 Difference]: Finished difference. Result has 80 places, 79 transitions, 166 flow [2022-11-18 20:32:36,151 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=166, PETRI_PLACES=80, PETRI_TRANSITIONS=79} [2022-11-18 20:32:36,157 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, -5 predicate places. [2022-11-18 20:32:36,158 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 79 transitions, 166 flow [2022-11-18 20:32:36,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states 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 20:32:36,159 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:32:36,160 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] [2022-11-18 20:32:36,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:32:36,160 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 20:32:36,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:36,162 INFO L85 PathProgramCache]: Analyzing trace with hash 676304161, now seen corresponding path program 1 times [2022-11-18 20:32:36,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:36,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337626284] [2022-11-18 20:32:36,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:36,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:36,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:36,381 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 20:32:36,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:36,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337626284] [2022-11-18 20:32:36,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337626284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:32:36,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:32:36,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:32:36,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262721534] [2022-11-18 20:32:36,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:32:36,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:32:36,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:36,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:32:36,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:32:36,386 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 88 [2022-11-18 20:32:36,386 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 79 transitions, 166 flow. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states 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 20:32:36,386 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:32:36,387 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 88 [2022-11-18 20:32:36,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:32:36,499 INFO L130 PetriNetUnfolder]: 12/148 cut-off events. [2022-11-18 20:32:36,499 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 20:32:36,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 148 events. 12/148 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 343 event pairs, 3 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 185. Up to 23 conditions per place. [2022-11-18 20:32:36,502 INFO L137 encePairwiseOnDemand]: 85/88 looper letters, 16 selfloop transitions, 2 changer transitions 0/83 dead transitions. [2022-11-18 20:32:36,503 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 83 transitions, 210 flow [2022-11-18 20:32:36,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:32:36,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:32:36,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2022-11-18 20:32:36,508 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8106060606060606 [2022-11-18 20:32:36,508 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 214 transitions. [2022-11-18 20:32:36,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 214 transitions. [2022-11-18 20:32:36,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:32:36,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 214 transitions. [2022-11-18 20:32:36,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states 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 20:32:36,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states 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 20:32:36,512 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states 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 20:32:36,512 INFO L175 Difference]: Start difference. First operand has 80 places, 79 transitions, 166 flow. Second operand 3 states and 214 transitions. [2022-11-18 20:32:36,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 83 transitions, 210 flow [2022-11-18 20:32:36,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 83 transitions, 210 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:32:36,515 INFO L231 Difference]: Finished difference. Result has 83 places, 79 transitions, 174 flow [2022-11-18 20:32:36,515 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=83, PETRI_TRANSITIONS=79} [2022-11-18 20:32:36,516 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, -2 predicate places. [2022-11-18 20:32:36,516 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 79 transitions, 174 flow [2022-11-18 20:32:36,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states 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 20:32:36,517 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:32:36,517 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 20:32:36,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:32:36,518 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 20:32:36,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:36,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1440702948, now seen corresponding path program 1 times [2022-11-18 20:32:36,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:36,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255940020] [2022-11-18 20:32:36,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:36,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:36,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:36,638 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 20:32:36,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:36,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255940020] [2022-11-18 20:32:36,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255940020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:32:36,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:32:36,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:32:36,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124052294] [2022-11-18 20:32:36,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:32:36,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:32:36,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:36,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:32:36,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:32:36,648 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 88 [2022-11-18 20:32:36,649 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 79 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states 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 20:32:36,649 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:32:36,650 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 88 [2022-11-18 20:32:36,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:32:36,726 INFO L130 PetriNetUnfolder]: 1/131 cut-off events. [2022-11-18 20:32:36,726 INFO L131 PetriNetUnfolder]: For 8/14 co-relation queries the response was YES. [2022-11-18 20:32:36,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 131 events. 1/131 cut-off events. For 8/14 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 238 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 150. Up to 7 conditions per place. [2022-11-18 20:32:36,727 INFO L137 encePairwiseOnDemand]: 85/88 looper letters, 8 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2022-11-18 20:32:36,728 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 79 transitions, 197 flow [2022-11-18 20:32:36,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:32:36,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:32:36,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2022-11-18 20:32:36,730 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8257575757575758 [2022-11-18 20:32:36,730 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 218 transitions. [2022-11-18 20:32:36,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 218 transitions. [2022-11-18 20:32:36,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:32:36,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 218 transitions. [2022-11-18 20:32:36,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states 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 20:32:36,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states 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 20:32:36,734 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states 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 20:32:36,734 INFO L175 Difference]: Start difference. First operand has 83 places, 79 transitions, 174 flow. Second operand 3 states and 218 transitions. [2022-11-18 20:32:36,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 79 transitions, 197 flow [2022-11-18 20:32:36,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 79 transitions, 193 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:32:36,737 INFO L231 Difference]: Finished difference. Result has 82 places, 78 transitions, 172 flow [2022-11-18 20:32:36,737 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=82, PETRI_TRANSITIONS=78} [2022-11-18 20:32:36,738 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, -3 predicate places. [2022-11-18 20:32:36,738 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 78 transitions, 172 flow [2022-11-18 20:32:36,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states 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 20:32:36,739 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:32:36,739 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] [2022-11-18 20:32:36,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:32:36,740 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 20:32:36,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:36,740 INFO L85 PathProgramCache]: Analyzing trace with hash 373619005, now seen corresponding path program 1 times [2022-11-18 20:32:36,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:36,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835065217] [2022-11-18 20:32:36,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:36,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:36,785 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 20:32:36,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:36,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835065217] [2022-11-18 20:32:36,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835065217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:32:36,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:32:36,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:32:36,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863184327] [2022-11-18 20:32:36,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:32:36,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:32:36,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:36,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:32:36,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:32:36,788 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 88 [2022-11-18 20:32:36,789 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 78 transitions, 172 flow. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states 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 20:32:36,789 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:32:36,789 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 88 [2022-11-18 20:32:36,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:32:36,851 INFO L130 PetriNetUnfolder]: 7/188 cut-off events. [2022-11-18 20:32:36,852 INFO L131 PetriNetUnfolder]: For 10/16 co-relation queries the response was YES. [2022-11-18 20:32:36,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 188 events. 7/188 cut-off events. For 10/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 580 event pairs, 4 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 231. Up to 23 conditions per place. [2022-11-18 20:32:36,854 INFO L137 encePairwiseOnDemand]: 82/88 looper letters, 11 selfloop transitions, 3 changer transitions 11/81 dead transitions. [2022-11-18 20:32:36,855 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 81 transitions, 213 flow [2022-11-18 20:32:36,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:32:36,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:32:36,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 216 transitions. [2022-11-18 20:32:36,857 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8181818181818182 [2022-11-18 20:32:36,857 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 216 transitions. [2022-11-18 20:32:36,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 216 transitions. [2022-11-18 20:32:36,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:32:36,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 216 transitions. [2022-11-18 20:32:36,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states 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 20:32:36,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states 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 20:32:36,868 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states 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 20:32:36,868 INFO L175 Difference]: Start difference. First operand has 82 places, 78 transitions, 172 flow. Second operand 3 states and 216 transitions. [2022-11-18 20:32:36,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 81 transitions, 213 flow [2022-11-18 20:32:36,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 81 transitions, 209 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:32:36,875 INFO L231 Difference]: Finished difference. Result has 83 places, 69 transitions, 168 flow [2022-11-18 20:32:36,876 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=83, PETRI_TRANSITIONS=69} [2022-11-18 20:32:36,878 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, -2 predicate places. [2022-11-18 20:32:36,878 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 69 transitions, 168 flow [2022-11-18 20:32:36,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states 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 20:32:36,885 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:32:36,885 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 20:32:36,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:32:36,886 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 20:32:36,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:36,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1959545260, now seen corresponding path program 1 times [2022-11-18 20:32:36,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:36,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783071965] [2022-11-18 20:32:36,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:36,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:36,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:32:36,927 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:32:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:32:36,984 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:32:36,984 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:32:36,985 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 14 remaining) [2022-11-18 20:32:36,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2022-11-18 20:32:36,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2022-11-18 20:32:36,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2022-11-18 20:32:36,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2022-11-18 20:32:36,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2022-11-18 20:32:36,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2022-11-18 20:32:36,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2022-11-18 20:32:36,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2022-11-18 20:32:36,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2022-11-18 20:32:36,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2022-11-18 20:32:36,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2022-11-18 20:32:36,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2022-11-18 20:32:36,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2022-11-18 20:32:36,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:32:36,993 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-18 20:32:36,996 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 20:32:36,996 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-18 20:32:37,041 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 20:32:37,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 108 transitions, 234 flow [2022-11-18 20:32:37,076 INFO L130 PetriNetUnfolder]: 18/209 cut-off events. [2022-11-18 20:32:37,076 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 20:32:37,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 209 events. 18/209 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 516 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 121. Up to 8 conditions per place. [2022-11-18 20:32:37,078 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 108 transitions, 234 flow [2022-11-18 20:32:37,080 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 108 transitions, 234 flow [2022-11-18 20:32:37,081 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:32:37,089 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;@42fbdd19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:32:37,090 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-18 20:32:37,093 INFO L130 PetriNetUnfolder]: 0/20 cut-off events. [2022-11-18 20:32:37,093 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:32:37,094 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:32:37,094 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:32:37,094 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-18 20:32:37,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:37,095 INFO L85 PathProgramCache]: Analyzing trace with hash -746215681, now seen corresponding path program 1 times [2022-11-18 20:32:37,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:37,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46074192] [2022-11-18 20:32:37,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:37,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:37,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:37,129 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 20:32:37,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:37,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46074192] [2022-11-18 20:32:37,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46074192] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:32:37,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:32:37,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:32:37,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630377780] [2022-11-18 20:32:37,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:32:37,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:32:37,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:37,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:32:37,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:32:37,143 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 108 [2022-11-18 20:32:37,143 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 108 transitions, 234 flow. Second operand has 2 states, 2 states have (on average 86.5) internal successors, (173), 2 states have internal predecessors, (173), 0 states have call successors, (0), 0 states 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 20:32:37,143 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:32:37,143 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 108 [2022-11-18 20:32:37,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:32:37,189 INFO L130 PetriNetUnfolder]: 16/208 cut-off events. [2022-11-18 20:32:37,189 INFO L131 PetriNetUnfolder]: For 36/41 co-relation queries the response was YES. [2022-11-18 20:32:37,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 208 events. 16/208 cut-off events. For 36/41 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 642 event pairs, 1 based on Foata normal form. 18/197 useless extension candidates. Maximal degree in co-relation 116. Up to 27 conditions per place. [2022-11-18 20:32:37,192 INFO L137 encePairwiseOnDemand]: 98/108 looper letters, 11 selfloop transitions, 0 changer transitions 0/97 dead transitions. [2022-11-18 20:32:37,192 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 97 transitions, 234 flow [2022-11-18 20:32:37,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:32:37,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-18 20:32:37,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 193 transitions. [2022-11-18 20:32:37,193 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8935185185185185 [2022-11-18 20:32:37,193 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 193 transitions. [2022-11-18 20:32:37,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 193 transitions. [2022-11-18 20:32:37,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:32:37,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 193 transitions. [2022-11-18 20:32:37,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 96.5) internal successors, (193), 2 states have internal predecessors, (193), 0 states have call successors, (0), 0 states 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 20:32:37,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states 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 20:32:37,196 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states 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 20:32:37,196 INFO L175 Difference]: Start difference. First operand has 104 places, 108 transitions, 234 flow. Second operand 2 states and 193 transitions. [2022-11-18 20:32:37,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 97 transitions, 234 flow [2022-11-18 20:32:37,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 97 transitions, 234 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:32:37,199 INFO L231 Difference]: Finished difference. Result has 97 places, 97 transitions, 212 flow [2022-11-18 20:32:37,199 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=212, PETRI_PLACES=97, PETRI_TRANSITIONS=97} [2022-11-18 20:32:37,200 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, -7 predicate places. [2022-11-18 20:32:37,200 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 97 transitions, 212 flow [2022-11-18 20:32:37,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 86.5) internal successors, (173), 2 states have internal predecessors, (173), 0 states have call successors, (0), 0 states 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 20:32:37,200 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:32:37,200 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] [2022-11-18 20:32:37,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:32:37,201 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-18 20:32:37,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:37,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1859938163, now seen corresponding path program 1 times [2022-11-18 20:32:37,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:37,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009878132] [2022-11-18 20:32:37,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:37,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:37,239 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 20:32:37,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:37,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009878132] [2022-11-18 20:32:37,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009878132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:32:37,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:32:37,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:32:37,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543217954] [2022-11-18 20:32:37,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:32:37,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:32:37,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:37,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:32:37,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:32:37,247 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 108 [2022-11-18 20:32:37,263 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 97 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states 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 20:32:37,263 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:32:37,264 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 108 [2022-11-18 20:32:37,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:32:37,401 INFO L130 PetriNetUnfolder]: 68/423 cut-off events. [2022-11-18 20:32:37,401 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-11-18 20:32:37,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 567 conditions, 423 events. 68/423 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2061 event pairs, 9 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 562. Up to 103 conditions per place. [2022-11-18 20:32:37,405 INFO L137 encePairwiseOnDemand]: 105/108 looper letters, 22 selfloop transitions, 2 changer transitions 0/103 dead transitions. [2022-11-18 20:32:37,405 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 103 transitions, 272 flow [2022-11-18 20:32:37,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:32:37,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:32:37,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2022-11-18 20:32:37,407 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.808641975308642 [2022-11-18 20:32:37,407 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 262 transitions. [2022-11-18 20:32:37,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 262 transitions. [2022-11-18 20:32:37,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:32:37,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 262 transitions. [2022-11-18 20:32:37,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states 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 20:32:37,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states 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 20:32:37,411 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states 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 20:32:37,411 INFO L175 Difference]: Start difference. First operand has 97 places, 97 transitions, 212 flow. Second operand 3 states and 262 transitions. [2022-11-18 20:32:37,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 103 transitions, 272 flow [2022-11-18 20:32:37,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 103 transitions, 272 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:32:37,414 INFO L231 Difference]: Finished difference. Result has 100 places, 98 transitions, 224 flow [2022-11-18 20:32:37,415 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=100, PETRI_TRANSITIONS=98} [2022-11-18 20:32:37,416 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, -4 predicate places. [2022-11-18 20:32:37,417 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 98 transitions, 224 flow [2022-11-18 20:32:37,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states 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 20:32:37,417 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:32:37,418 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 20:32:37,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:32:37,418 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-18 20:32:37,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:37,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1310943378, now seen corresponding path program 1 times [2022-11-18 20:32:37,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:37,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395945091] [2022-11-18 20:32:37,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:37,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:37,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:37,455 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 20:32:37,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:37,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395945091] [2022-11-18 20:32:37,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395945091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:32:37,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:32:37,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:32:37,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929581168] [2022-11-18 20:32:37,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:32:37,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:32:37,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:37,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:32:37,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:32:37,459 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 108 [2022-11-18 20:32:37,459 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 98 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states 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 20:32:37,460 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:32:37,460 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 108 [2022-11-18 20:32:37,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:32:37,611 INFO L130 PetriNetUnfolder]: 52/631 cut-off events. [2022-11-18 20:32:37,612 INFO L131 PetriNetUnfolder]: For 111/313 co-relation queries the response was YES. [2022-11-18 20:32:37,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 787 conditions, 631 events. 52/631 cut-off events. For 111/313 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3962 event pairs, 10 based on Foata normal form. 0/523 useless extension candidates. Maximal degree in co-relation 780. Up to 52 conditions per place. [2022-11-18 20:32:37,617 INFO L137 encePairwiseOnDemand]: 100/108 looper letters, 22 selfloop transitions, 6 changer transitions 0/109 dead transitions. [2022-11-18 20:32:37,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 109 transitions, 313 flow [2022-11-18 20:32:37,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:32:37,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:32:37,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 270 transitions. [2022-11-18 20:32:37,619 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2022-11-18 20:32:37,619 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 270 transitions. [2022-11-18 20:32:37,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 270 transitions. [2022-11-18 20:32:37,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:32:37,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 270 transitions. [2022-11-18 20:32:37,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states 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 20:32:37,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states 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 20:32:37,622 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states 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 20:32:37,622 INFO L175 Difference]: Start difference. First operand has 100 places, 98 transitions, 224 flow. Second operand 3 states and 270 transitions. [2022-11-18 20:32:37,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 109 transitions, 313 flow [2022-11-18 20:32:37,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 109 transitions, 311 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:32:37,627 INFO L231 Difference]: Finished difference. Result has 103 places, 104 transitions, 274 flow [2022-11-18 20:32:37,627 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=103, PETRI_TRANSITIONS=104} [2022-11-18 20:32:37,628 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, -1 predicate places. [2022-11-18 20:32:37,629 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 104 transitions, 274 flow [2022-11-18 20:32:37,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states 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 20:32:37,630 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:32:37,630 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] [2022-11-18 20:32:37,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:32:37,631 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-18 20:32:37,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:37,631 INFO L85 PathProgramCache]: Analyzing trace with hash 176942779, now seen corresponding path program 1 times [2022-11-18 20:32:37,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:37,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017764346] [2022-11-18 20:32:37,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:37,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:37,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:37,692 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 20:32:37,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:37,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017764346] [2022-11-18 20:32:37,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017764346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:32:37,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:32:37,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:32:37,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564075894] [2022-11-18 20:32:37,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:32:37,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:32:37,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:37,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:32:37,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:32:37,700 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 108 [2022-11-18 20:32:37,701 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 104 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states 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 20:32:37,701 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:32:37,701 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 108 [2022-11-18 20:32:37,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:32:38,048 INFO L130 PetriNetUnfolder]: 266/1659 cut-off events. [2022-11-18 20:32:38,049 INFO L131 PetriNetUnfolder]: For 362/767 co-relation queries the response was YES. [2022-11-18 20:32:38,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2433 conditions, 1659 events. 266/1659 cut-off events. For 362/767 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 14100 event pairs, 91 based on Foata normal form. 1/1410 useless extension candidates. Maximal degree in co-relation 2425. Up to 383 conditions per place. [2022-11-18 20:32:38,061 INFO L137 encePairwiseOnDemand]: 97/108 looper letters, 27 selfloop transitions, 8 changer transitions 0/117 dead transitions. [2022-11-18 20:32:38,061 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 117 transitions, 389 flow [2022-11-18 20:32:38,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:32:38,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:32:38,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 267 transitions. [2022-11-18 20:32:38,062 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8240740740740741 [2022-11-18 20:32:38,063 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 267 transitions. [2022-11-18 20:32:38,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 267 transitions. [2022-11-18 20:32:38,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:32:38,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 267 transitions. [2022-11-18 20:32:38,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states 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 20:32:38,065 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states 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 20:32:38,065 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states 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 20:32:38,065 INFO L175 Difference]: Start difference. First operand has 103 places, 104 transitions, 274 flow. Second operand 3 states and 267 transitions. [2022-11-18 20:32:38,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 117 transitions, 389 flow [2022-11-18 20:32:38,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 117 transitions, 373 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:32:38,072 INFO L231 Difference]: Finished difference. Result has 105 places, 112 transitions, 332 flow [2022-11-18 20:32:38,073 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=105, PETRI_TRANSITIONS=112} [2022-11-18 20:32:38,075 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, 1 predicate places. [2022-11-18 20:32:38,075 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 112 transitions, 332 flow [2022-11-18 20:32:38,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states 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 20:32:38,076 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:32:38,076 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:32:38,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:32:38,076 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-18 20:32:38,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:38,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1184394343, now seen corresponding path program 1 times [2022-11-18 20:32:38,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:38,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986959397] [2022-11-18 20:32:38,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:38,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:38,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:32:38,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:38,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986959397] [2022-11-18 20:32:38,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986959397] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:32:38,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208279572] [2022-11-18 20:32:38,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:38,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:32:38,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:32:38,207 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:32:38,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:32:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:38,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:32:38,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:32:38,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:32:38,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:32:38,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:32:38,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208279572] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:32:38,453 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:32:38,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 20:32:38,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170541775] [2022-11-18 20:32:38,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:32:38,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:32:38,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:38,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:32:38,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:32:38,456 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 108 [2022-11-18 20:32:38,457 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 112 transitions, 332 flow. Second operand has 10 states, 10 states have (on average 80.6) internal successors, (806), 10 states have internal predecessors, (806), 0 states have call successors, (0), 0 states 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 20:32:38,458 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:32:38,458 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 108 [2022-11-18 20:32:38,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:32:38,685 INFO L130 PetriNetUnfolder]: 196/645 cut-off events. [2022-11-18 20:32:38,685 INFO L131 PetriNetUnfolder]: For 445/620 co-relation queries the response was YES. [2022-11-18 20:32:38,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1418 conditions, 645 events. 196/645 cut-off events. For 445/620 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 4598 event pairs, 5 based on Foata normal form. 47/623 useless extension candidates. Maximal degree in co-relation 1409. Up to 156 conditions per place. [2022-11-18 20:32:38,691 INFO L137 encePairwiseOnDemand]: 103/108 looper letters, 50 selfloop transitions, 7 changer transitions 0/117 dead transitions. [2022-11-18 20:32:38,691 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 117 transitions, 512 flow [2022-11-18 20:32:38,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:32:38,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:32:38,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 745 transitions. [2022-11-18 20:32:38,694 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7664609053497943 [2022-11-18 20:32:38,694 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 745 transitions. [2022-11-18 20:32:38,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 745 transitions. [2022-11-18 20:32:38,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:32:38,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 745 transitions. [2022-11-18 20:32:38,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 82.77777777777777) internal successors, (745), 9 states have internal predecessors, (745), 0 states have call successors, (0), 0 states 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 20:32:38,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 108.0) internal successors, (1080), 10 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states 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 20:32:38,700 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 108.0) internal successors, (1080), 10 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states 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 20:32:38,700 INFO L175 Difference]: Start difference. First operand has 105 places, 112 transitions, 332 flow. Second operand 9 states and 745 transitions. [2022-11-18 20:32:38,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 117 transitions, 512 flow [2022-11-18 20:32:38,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 117 transitions, 480 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-11-18 20:32:38,704 INFO L231 Difference]: Finished difference. Result has 84 places, 83 transitions, 252 flow [2022-11-18 20:32:38,705 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=252, PETRI_PLACES=84, PETRI_TRANSITIONS=83} [2022-11-18 20:32:38,705 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, -20 predicate places. [2022-11-18 20:32:38,705 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 83 transitions, 252 flow [2022-11-18 20:32:38,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 80.6) internal successors, (806), 10 states have internal predecessors, (806), 0 states have call successors, (0), 0 states 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 20:32:38,706 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:32:38,706 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 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 20:32:38,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:32:38,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 20:32:38,913 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-18 20:32:38,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:38,913 INFO L85 PathProgramCache]: Analyzing trace with hash 96829731, now seen corresponding path program 1 times [2022-11-18 20:32:38,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:38,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453571680] [2022-11-18 20:32:38,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:38,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:32:38,934 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:32:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:32:38,961 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:32:38,961 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:32:38,961 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2022-11-18 20:32:38,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2022-11-18 20:32:38,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2022-11-18 20:32:38,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2022-11-18 20:32:38,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2022-11-18 20:32:38,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2022-11-18 20:32:38,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2022-11-18 20:32:38,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2022-11-18 20:32:38,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2022-11-18 20:32:38,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2022-11-18 20:32:38,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2022-11-18 20:32:38,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2022-11-18 20:32:38,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2022-11-18 20:32:38,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2022-11-18 20:32:38,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2022-11-18 20:32:38,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2022-11-18 20:32:38,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2022-11-18 20:32:38,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2022-11-18 20:32:38,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:32:38,965 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-18 20:32:38,966 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 20:32:38,966 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-18 20:32:38,998 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 20:32:39,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 128 transitions, 286 flow [2022-11-18 20:32:39,050 INFO L130 PetriNetUnfolder]: 34/360 cut-off events. [2022-11-18 20:32:39,051 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-18 20:32:39,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 360 events. 34/360 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1103 event pairs, 1 based on Foata normal form. 0/291 useless extension candidates. Maximal degree in co-relation 217. Up to 16 conditions per place. [2022-11-18 20:32:39,053 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 128 transitions, 286 flow [2022-11-18 20:32:39,059 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 128 transitions, 286 flow [2022-11-18 20:32:39,061 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:32:39,061 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;@42fbdd19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:32:39,062 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-11-18 20:32:39,064 INFO L130 PetriNetUnfolder]: 0/20 cut-off events. [2022-11-18 20:32:39,064 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:32:39,064 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:32:39,064 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:32:39,065 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:32:39,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:39,065 INFO L85 PathProgramCache]: Analyzing trace with hash 579667839, now seen corresponding path program 1 times [2022-11-18 20:32:39,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:39,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425186641] [2022-11-18 20:32:39,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:39,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:39,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:39,084 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 20:32:39,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:39,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425186641] [2022-11-18 20:32:39,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425186641] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:32:39,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:32:39,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:32:39,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076647138] [2022-11-18 20:32:39,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:32:39,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:32:39,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:39,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:32:39,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:32:39,087 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 128 [2022-11-18 20:32:39,087 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 128 transitions, 286 flow. Second operand has 2 states, 2 states have (on average 100.5) internal successors, (201), 2 states have internal predecessors, (201), 0 states have call successors, (0), 0 states 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 20:32:39,087 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:32:39,087 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 128 [2022-11-18 20:32:39,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:32:39,178 INFO L130 PetriNetUnfolder]: 84/453 cut-off events. [2022-11-18 20:32:39,178 INFO L131 PetriNetUnfolder]: For 191/217 co-relation queries the response was YES. [2022-11-18 20:32:39,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 640 conditions, 453 events. 84/453 cut-off events. For 191/217 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1922 event pairs, 19 based on Foata normal form. 57/450 useless extension candidates. Maximal degree in co-relation 317. Up to 115 conditions per place. [2022-11-18 20:32:39,184 INFO L137 encePairwiseOnDemand]: 116/128 looper letters, 15 selfloop transitions, 0 changer transitions 0/115 dead transitions. [2022-11-18 20:32:39,184 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 115 transitions, 290 flow [2022-11-18 20:32:39,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:32:39,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-18 20:32:39,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 227 transitions. [2022-11-18 20:32:39,186 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.88671875 [2022-11-18 20:32:39,186 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 227 transitions. [2022-11-18 20:32:39,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 227 transitions. [2022-11-18 20:32:39,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:32:39,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 227 transitions. [2022-11-18 20:32:39,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 113.5) internal successors, (227), 2 states have internal predecessors, (227), 0 states have call successors, (0), 0 states 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 20:32:39,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states 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 20:32:39,190 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states 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 20:32:39,190 INFO L175 Difference]: Start difference. First operand has 123 places, 128 transitions, 286 flow. Second operand 2 states and 227 transitions. [2022-11-18 20:32:39,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 115 transitions, 290 flow [2022-11-18 20:32:39,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 115 transitions, 290 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:32:39,194 INFO L231 Difference]: Finished difference. Result has 114 places, 115 transitions, 260 flow [2022-11-18 20:32:39,195 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=260, PETRI_PLACES=114, PETRI_TRANSITIONS=115} [2022-11-18 20:32:39,197 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, -9 predicate places. [2022-11-18 20:32:39,197 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 115 transitions, 260 flow [2022-11-18 20:32:39,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 100.5) internal successors, (201), 2 states have internal predecessors, (201), 0 states have call successors, (0), 0 states 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 20:32:39,197 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:32:39,197 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] [2022-11-18 20:32:39,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:32:39,198 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:32:39,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:39,198 INFO L85 PathProgramCache]: Analyzing trace with hash -93669107, now seen corresponding path program 1 times [2022-11-18 20:32:39,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:39,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552872555] [2022-11-18 20:32:39,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:39,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:39,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:39,232 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 20:32:39,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:39,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552872555] [2022-11-18 20:32:39,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552872555] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:32:39,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:32:39,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:32:39,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397267604] [2022-11-18 20:32:39,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:32:39,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:32:39,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:39,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:32:39,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:32:39,236 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 128 [2022-11-18 20:32:39,236 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 115 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states 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 20:32:39,237 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:32:39,237 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 128 [2022-11-18 20:32:39,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:32:39,468 INFO L130 PetriNetUnfolder]: 258/1209 cut-off events. [2022-11-18 20:32:39,469 INFO L131 PetriNetUnfolder]: For 200/200 co-relation queries the response was YES. [2022-11-18 20:32:39,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1672 conditions, 1209 events. 258/1209 cut-off events. For 200/200 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 7825 event pairs, 58 based on Foata normal form. 0/1005 useless extension candidates. Maximal degree in co-relation 1666. Up to 347 conditions per place. [2022-11-18 20:32:39,481 INFO L137 encePairwiseOnDemand]: 125/128 looper letters, 26 selfloop transitions, 2 changer transitions 0/121 dead transitions. [2022-11-18 20:32:39,481 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 121 transitions, 328 flow [2022-11-18 20:32:39,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:32:39,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:32:39,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 308 transitions. [2022-11-18 20:32:39,483 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8020833333333334 [2022-11-18 20:32:39,483 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 308 transitions. [2022-11-18 20:32:39,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 308 transitions. [2022-11-18 20:32:39,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:32:39,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 308 transitions. [2022-11-18 20:32:39,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states 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 20:32:39,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states 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 20:32:39,486 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states 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 20:32:39,486 INFO L175 Difference]: Start difference. First operand has 114 places, 115 transitions, 260 flow. Second operand 3 states and 308 transitions. [2022-11-18 20:32:39,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 121 transitions, 328 flow [2022-11-18 20:32:39,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 121 transitions, 328 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:32:39,489 INFO L231 Difference]: Finished difference. Result has 117 places, 116 transitions, 272 flow [2022-11-18 20:32:39,490 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=272, PETRI_PLACES=117, PETRI_TRANSITIONS=116} [2022-11-18 20:32:39,490 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, -6 predicate places. [2022-11-18 20:32:39,490 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 116 transitions, 272 flow [2022-11-18 20:32:39,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states 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 20:32:39,491 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:32:39,491 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 20:32:39,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:32:39,491 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:32:39,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:39,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1706220828, now seen corresponding path program 1 times [2022-11-18 20:32:39,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:39,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005356063] [2022-11-18 20:32:39,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:39,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:39,530 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 20:32:39,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:39,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005356063] [2022-11-18 20:32:39,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005356063] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:32:39,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:32:39,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:32:39,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054558660] [2022-11-18 20:32:39,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:32:39,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:32:39,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:39,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:32:39,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:32:39,533 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 128 [2022-11-18 20:32:39,534 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 116 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states 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 20:32:39,534 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:32:39,534 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 128 [2022-11-18 20:32:39,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:32:40,114 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][81], [136#(= |#race~stopSales~0| 0), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, 103#L721-2true, 129#true, salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-18 20:32:40,114 INFO L383 tUnfolder$Statistics]: this new event has 96 ancestors and is cut-off event [2022-11-18 20:32:40,114 INFO L386 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-11-18 20:32:40,114 INFO L386 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-11-18 20:32:40,114 INFO L386 tUnfolder$Statistics]: existing Event has 63 ancestors and is cut-off event [2022-11-18 20:32:40,114 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][82], [33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, 134#true, 129#true, salethreadThread3of3ForFork0NotInUse, 97#L721-3true, 126#true]) [2022-11-18 20:32:40,115 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:32:40,115 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-18 20:32:40,115 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:32:40,115 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-18 20:32:40,115 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([547] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread2of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_14| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))))) InVars {salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} OutVars{salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} AuxVars[] AssignedVars[][116], [33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, 134#true, 129#true, salethreadThread3of3ForFork0NotInUse, 87#L721-3true, 126#true]) [2022-11-18 20:32:40,115 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:32:40,115 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:32:40,116 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-18 20:32:40,116 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-18 20:32:40,158 INFO L130 PetriNetUnfolder]: 654/3901 cut-off events. [2022-11-18 20:32:40,158 INFO L131 PetriNetUnfolder]: For 1338/3693 co-relation queries the response was YES. [2022-11-18 20:32:40,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5261 conditions, 3901 events. 654/3901 cut-off events. For 1338/3693 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 39293 event pairs, 115 based on Foata normal form. 1/3144 useless extension candidates. Maximal degree in co-relation 5253. Up to 474 conditions per place. [2022-11-18 20:32:40,200 INFO L137 encePairwiseOnDemand]: 116/128 looper letters, 32 selfloop transitions, 9 changer transitions 0/133 dead transitions. [2022-11-18 20:32:40,200 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 133 transitions, 409 flow [2022-11-18 20:32:40,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:32:40,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:32:40,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 317 transitions. [2022-11-18 20:32:40,202 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8255208333333334 [2022-11-18 20:32:40,202 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 317 transitions. [2022-11-18 20:32:40,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 317 transitions. [2022-11-18 20:32:40,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:32:40,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 317 transitions. [2022-11-18 20:32:40,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states 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 20:32:40,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states 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 20:32:40,205 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states 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 20:32:40,205 INFO L175 Difference]: Start difference. First operand has 117 places, 116 transitions, 272 flow. Second operand 3 states and 317 transitions. [2022-11-18 20:32:40,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 133 transitions, 409 flow [2022-11-18 20:32:40,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 133 transitions, 407 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:32:40,209 INFO L231 Difference]: Finished difference. Result has 120 places, 125 transitions, 348 flow [2022-11-18 20:32:40,209 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=348, PETRI_PLACES=120, PETRI_TRANSITIONS=125} [2022-11-18 20:32:40,210 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, -3 predicate places. [2022-11-18 20:32:40,210 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 125 transitions, 348 flow [2022-11-18 20:32:40,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states 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 20:32:40,210 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:32:40,210 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] [2022-11-18 20:32:40,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:32:40,211 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:32:40,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:40,211 INFO L85 PathProgramCache]: Analyzing trace with hash 913815373, now seen corresponding path program 1 times [2022-11-18 20:32:40,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:40,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759780063] [2022-11-18 20:32:40,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:40,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:40,251 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 20:32:40,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:40,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759780063] [2022-11-18 20:32:40,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759780063] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:32:40,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:32:40,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:32:40,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965757300] [2022-11-18 20:32:40,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:32:40,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:32:40,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:40,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:32:40,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:32:40,254 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 128 [2022-11-18 20:32:40,255 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 125 transitions, 348 flow. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states 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 20:32:40,255 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:32:40,255 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 128 [2022-11-18 20:32:40,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:32:41,848 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][81], [136#(= |#race~stopSales~0| 0), 140#true, 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, 66#salethreadENTRYtrue, salethreadThread3of3ForFork0NotInUse, Black: 134#true, 126#true]) [2022-11-18 20:32:41,848 INFO L383 tUnfolder$Statistics]: this new event has 88 ancestors and is cut-off event [2022-11-18 20:32:41,848 INFO L386 tUnfolder$Statistics]: existing Event has 60 ancestors and is cut-off event [2022-11-18 20:32:41,848 INFO L386 tUnfolder$Statistics]: existing Event has 65 ancestors and is cut-off event [2022-11-18 20:32:41,848 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-18 20:32:42,025 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([547] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread2of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_14| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))))) InVars {salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} OutVars{salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} AuxVars[] AssignedVars[][118], [136#(= |#race~stopSales~0| 0), 42#L722-1true, 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, Black: 134#true, salethreadThread3of3ForFork0NotInUse, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:32:42,026 INFO L383 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-11-18 20:32:42,026 INFO L386 tUnfolder$Statistics]: existing Event has 65 ancestors and is cut-off event [2022-11-18 20:32:42,026 INFO L386 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-11-18 20:32:42,026 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-11-18 20:32:42,027 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([547] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread2of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_14| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))))) InVars {salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} OutVars{salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} AuxVars[] AssignedVars[][118], [136#(= |#race~stopSales~0| 0), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 88#L722-2true, salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, Black: 134#true, salethreadThread3of3ForFork0NotInUse, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:32:42,027 INFO L383 tUnfolder$Statistics]: this new event has 94 ancestors and is cut-off event [2022-11-18 20:32:42,027 INFO L386 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-11-18 20:32:42,027 INFO L386 tUnfolder$Statistics]: existing Event has 99 ancestors and is cut-off event [2022-11-18 20:32:42,027 INFO L386 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-11-18 20:32:42,056 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([547] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread2of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_14| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))))) InVars {salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} OutVars{salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} AuxVars[] AssignedVars[][118], [33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, 134#true, Black: 136#(= |#race~stopSales~0| 0), salethreadThread3of3ForFork0NotInUse, 126#true, 87#L721-3true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:32:42,056 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:32:42,057 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-18 20:32:42,057 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-18 20:32:42,057 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:32:42,265 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][82], [33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, 134#true, Black: 136#(= |#race~stopSales~0| 0), salethreadThread2of3ForFork0InUse, salethreadThread3of3ForFork0NotInUse, 97#L721-3true, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:32:42,265 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:32:42,265 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-18 20:32:42,265 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-18 20:32:42,266 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:32:42,488 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][82], [136#(= |#race~stopSales~0| 0), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, 102#L722-2true, salethreadThread2of3ForFork0InUse, salethreadThread3of3ForFork0NotInUse, Black: 134#true, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:32:42,489 INFO L383 tUnfolder$Statistics]: this new event has 99 ancestors and is cut-off event [2022-11-18 20:32:42,489 INFO L386 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2022-11-18 20:32:42,489 INFO L386 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-11-18 20:32:42,489 INFO L386 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-11-18 20:32:42,513 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][82], [136#(= |#race~stopSales~0| 0), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, 102#L722-2true, salethreadThread2of3ForFork0InUse, Black: 134#true, salethreadThread3of3ForFork0NotInUse, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:32:42,513 INFO L383 tUnfolder$Statistics]: this new event has 99 ancestors and is cut-off event [2022-11-18 20:32:42,513 INFO L386 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2022-11-18 20:32:42,513 INFO L386 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-11-18 20:32:42,513 INFO L386 tUnfolder$Statistics]: existing Event has 99 ancestors and is cut-off event [2022-11-18 20:32:42,514 INFO L386 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-11-18 20:32:42,514 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][82], [136#(= |#race~stopSales~0| 0), 106#L722-1true, 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, Black: 134#true, salethreadThread3of3ForFork0NotInUse, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:32:42,514 INFO L383 tUnfolder$Statistics]: this new event has 98 ancestors and is cut-off event [2022-11-18 20:32:42,514 INFO L386 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-11-18 20:32:42,514 INFO L386 tUnfolder$Statistics]: existing Event has 65 ancestors and is cut-off event [2022-11-18 20:32:42,515 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-18 20:32:42,956 INFO L130 PetriNetUnfolder]: 4573/16387 cut-off events. [2022-11-18 20:32:42,956 INFO L131 PetriNetUnfolder]: For 6386/11701 co-relation queries the response was YES. [2022-11-18 20:32:43,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27144 conditions, 16387 events. 4573/16387 cut-off events. For 6386/11701 co-relation queries the response was YES. Maximal size of possible extension queue 838. Compared 201725 event pairs, 1391 based on Foata normal form. 3/13976 useless extension candidates. Maximal degree in co-relation 27135. Up to 4987 conditions per place. [2022-11-18 20:32:43,135 INFO L137 encePairwiseOnDemand]: 113/128 looper letters, 41 selfloop transitions, 11 changer transitions 0/147 dead transitions. [2022-11-18 20:32:43,135 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 147 transitions, 535 flow [2022-11-18 20:32:43,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:32:43,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:32:43,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 314 transitions. [2022-11-18 20:32:43,138 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8177083333333334 [2022-11-18 20:32:43,138 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 314 transitions. [2022-11-18 20:32:43,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 314 transitions. [2022-11-18 20:32:43,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:32:43,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 314 transitions. [2022-11-18 20:32:43,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states 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 20:32:43,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states 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 20:32:43,143 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states 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 20:32:43,143 INFO L175 Difference]: Start difference. First operand has 120 places, 125 transitions, 348 flow. Second operand 3 states and 314 transitions. [2022-11-18 20:32:43,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 147 transitions, 535 flow [2022-11-18 20:32:43,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 147 transitions, 511 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:32:43,159 INFO L231 Difference]: Finished difference. Result has 122 places, 136 transitions, 426 flow [2022-11-18 20:32:43,160 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=426, PETRI_PLACES=122, PETRI_TRANSITIONS=136} [2022-11-18 20:32:43,163 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, -1 predicate places. [2022-11-18 20:32:43,163 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 136 transitions, 426 flow [2022-11-18 20:32:43,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states 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 20:32:43,164 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:32:43,164 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:32:43,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 20:32:43,165 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:32:43,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:43,166 INFO L85 PathProgramCache]: Analyzing trace with hash 469144953, now seen corresponding path program 1 times [2022-11-18 20:32:43,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:43,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891380408] [2022-11-18 20:32:43,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:43,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:43,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:43,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:32:43,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:43,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891380408] [2022-11-18 20:32:43,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891380408] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:32:43,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990712634] [2022-11-18 20:32:43,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:43,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:32:43,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:32:43,252 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:32:43,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:32:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:43,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:32:43,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:32:43,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:32:43,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:32:43,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:32:43,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990712634] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:32:43,425 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:32:43,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 20:32:43,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626872905] [2022-11-18 20:32:43,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:32:43,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:32:43,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:43,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:32:43,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:32:43,428 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 128 [2022-11-18 20:32:43,429 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 136 transitions, 426 flow. Second operand has 10 states, 10 states have (on average 94.6) internal successors, (946), 10 states have internal predecessors, (946), 0 states have call successors, (0), 0 states 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 20:32:43,429 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:32:43,429 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 128 [2022-11-18 20:32:43,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:32:47,113 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([505] L728-->L721-3: Formula: (= (+ v_salethreadThread2of3ForFork0_~_numberOfSeatsSold~0_7 1) v_~numberOfSeatsSold~0_14) InVars {salethreadThread2of3ForFork0_~_numberOfSeatsSold~0=v_salethreadThread2of3ForFork0_~_numberOfSeatsSold~0_7} OutVars{#race~numberOfSeatsSold~0=|v_#race~numberOfSeatsSold~0_25|, salethreadThread2of3ForFork0_~_numberOfSeatsSold~0=v_salethreadThread2of3ForFork0_~_numberOfSeatsSold~0_7, salethreadThread2of3ForFork0_#t~nondet2=|v_salethreadThread2of3ForFork0_#t~nondet2_3|, ~numberOfSeatsSold~0=v_~numberOfSeatsSold~0_14} AuxVars[] AssignedVars[~numberOfSeatsSold~0, #race~numberOfSeatsSold~0, salethreadThread2of3ForFork0_#t~nondet2][108], [146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), 140#true, 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, Black: 134#true, salethreadThread3of3ForFork0NotInUse, 97#L721-3true, 126#true]) [2022-11-18 20:32:47,113 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:32:47,113 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:32:47,113 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:32:47,113 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:32:47,114 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([503] L724-->L721-3: Formula: (= v_~stopSales~0_20 1) InVars {} OutVars{salethreadThread2of3ForFork0_#t~nondet1=|v_salethreadThread2of3ForFork0_#t~nondet1_3|, ~stopSales~0=v_~stopSales~0_20, #race~stopSales~0=|v_#race~stopSales~0_24|} AuxVars[] AssignedVars[~stopSales~0, #race~stopSales~0, salethreadThread2of3ForFork0_#t~nondet1][106], [Black: 140#true, 146#true, 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, Black: 136#(= |#race~stopSales~0| 0), salethreadThread3of3ForFork0NotInUse, 97#L721-3true, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:32:47,114 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:32:47,114 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:32:47,114 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:32:47,114 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:32:47,204 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([448] L749-6-->L752: Formula: (= |v_#race~numberOfSeatsSold~0_10| 0) InVars {} OutVars{#race~numberOfSeatsSold~0=|v_#race~numberOfSeatsSold~0_10|} AuxVars[] AssignedVars[#race~numberOfSeatsSold~0][135], [Black: 140#true, 146#true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, 102#L722-2true, 56#L752true, salethreadThread2of3ForFork0InUse, Black: 134#true, salethreadThread3of3ForFork0NotInUse, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:32:47,205 INFO L383 tUnfolder$Statistics]: this new event has 105 ancestors and is cut-off event [2022-11-18 20:32:47,205 INFO L386 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-11-18 20:32:47,205 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-18 20:32:47,205 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-18 20:32:47,309 INFO L130 PetriNetUnfolder]: 6176/24951 cut-off events. [2022-11-18 20:32:47,309 INFO L131 PetriNetUnfolder]: For 11078/13988 co-relation queries the response was YES. [2022-11-18 20:32:47,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43873 conditions, 24951 events. 6176/24951 cut-off events. For 11078/13988 co-relation queries the response was YES. Maximal size of possible extension queue 1013. Compared 336576 event pairs, 1529 based on Foata normal form. 160/21065 useless extension candidates. Maximal degree in co-relation 43863. Up to 3631 conditions per place. [2022-11-18 20:32:47,530 INFO L137 encePairwiseOnDemand]: 122/128 looper letters, 73 selfloop transitions, 9 changer transitions 0/188 dead transitions. [2022-11-18 20:32:47,531 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 188 transitions, 804 flow [2022-11-18 20:32:47,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:32:47,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:32:47,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 888 transitions. [2022-11-18 20:32:47,535 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7708333333333334 [2022-11-18 20:32:47,535 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 888 transitions. [2022-11-18 20:32:47,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 888 transitions. [2022-11-18 20:32:47,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:32:47,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 888 transitions. [2022-11-18 20:32:47,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 98.66666666666667) internal successors, (888), 9 states have internal predecessors, (888), 0 states have call successors, (0), 0 states 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 20:32:47,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states 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 20:32:47,543 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states 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 20:32:47,544 INFO L175 Difference]: Start difference. First operand has 122 places, 136 transitions, 426 flow. Second operand 9 states and 888 transitions. [2022-11-18 20:32:47,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 188 transitions, 804 flow [2022-11-18 20:32:47,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 188 transitions, 758 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:32:47,657 INFO L231 Difference]: Finished difference. Result has 131 places, 142 transitions, 454 flow [2022-11-18 20:32:47,658 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=454, PETRI_PLACES=131, PETRI_TRANSITIONS=142} [2022-11-18 20:32:47,659 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, 8 predicate places. [2022-11-18 20:32:47,660 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 142 transitions, 454 flow [2022-11-18 20:32:47,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 94.6) internal successors, (946), 10 states have internal predecessors, (946), 0 states have call successors, (0), 0 states 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 20:32:47,661 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:32:47,661 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:32:47,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:32:47,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-18 20:32:47,868 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:32:47,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:47,868 INFO L85 PathProgramCache]: Analyzing trace with hash -593229992, now seen corresponding path program 1 times [2022-11-18 20:32:47,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:47,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158347893] [2022-11-18 20:32:47,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:47,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:48,015 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:32:48,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:48,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158347893] [2022-11-18 20:32:48,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158347893] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:32:48,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:32:48,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:32:48,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733662341] [2022-11-18 20:32:48,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:32:48,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:32:48,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:48,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:32:48,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:32:48,018 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 128 [2022-11-18 20:32:48,022 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 142 transitions, 454 flow. Second operand has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 0 states have call successors, (0), 0 states 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 20:32:48,022 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:32:48,022 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 128 [2022-11-18 20:32:48,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:32:49,689 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([541] L728-->L721-3: Formula: (= (+ v_salethreadThread1of3ForFork0_~_numberOfSeatsSold~0_7 1) v_~numberOfSeatsSold~0_14) InVars {salethreadThread1of3ForFork0_~_numberOfSeatsSold~0=v_salethreadThread1of3ForFork0_~_numberOfSeatsSold~0_7} OutVars{#race~numberOfSeatsSold~0=|v_#race~numberOfSeatsSold~0_25|, ~numberOfSeatsSold~0=v_~numberOfSeatsSold~0_14, salethreadThread1of3ForFork0_~_numberOfSeatsSold~0=v_salethreadThread1of3ForFork0_~_numberOfSeatsSold~0_7, salethreadThread1of3ForFork0_#t~nondet2=|v_salethreadThread1of3ForFork0_#t~nondet2_3|} AuxVars[] AssignedVars[~numberOfSeatsSold~0, #race~numberOfSeatsSold~0, salethreadThread1of3ForFork0_#t~nondet2][45], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 15), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 134#true, 87#L721-3true, 5#L722-2true, 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), salethreadThread3of3ForFork0InUse, 126#true]) [2022-11-18 20:32:49,690 INFO L383 tUnfolder$Statistics]: this new event has 90 ancestors and is cut-off event [2022-11-18 20:32:49,690 INFO L386 tUnfolder$Statistics]: existing Event has 90 ancestors and is cut-off event [2022-11-18 20:32:49,690 INFO L386 tUnfolder$Statistics]: existing Event has 85 ancestors and is cut-off event [2022-11-18 20:32:49,690 INFO L386 tUnfolder$Statistics]: existing Event has 85 ancestors and is cut-off event [2022-11-18 20:32:49,825 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([541] L728-->L721-3: Formula: (= (+ v_salethreadThread1of3ForFork0_~_numberOfSeatsSold~0_7 1) v_~numberOfSeatsSold~0_14) InVars {salethreadThread1of3ForFork0_~_numberOfSeatsSold~0=v_salethreadThread1of3ForFork0_~_numberOfSeatsSold~0_7} OutVars{#race~numberOfSeatsSold~0=|v_#race~numberOfSeatsSold~0_25|, ~numberOfSeatsSold~0=v_~numberOfSeatsSold~0_14, salethreadThread1of3ForFork0_~_numberOfSeatsSold~0=v_salethreadThread1of3ForFork0_~_numberOfSeatsSold~0_7, salethreadThread1of3ForFork0_#t~nondet2=|v_salethreadThread1of3ForFork0_#t~nondet2_3|} AuxVars[] AssignedVars[~numberOfSeatsSold~0, #race~numberOfSeatsSold~0, salethreadThread1of3ForFork0_#t~nondet2][45], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 15), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 134#true, 87#L721-3true, 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), salethreadThread1of3ForFork0InUse, 76#L722-1true, salethreadThread2of3ForFork0NotInUse, 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), salethreadThread3of3ForFork0InUse, 126#true]) [2022-11-18 20:32:49,825 INFO L383 tUnfolder$Statistics]: this new event has 89 ancestors and is cut-off event [2022-11-18 20:32:49,826 INFO L386 tUnfolder$Statistics]: existing Event has 89 ancestors and is cut-off event [2022-11-18 20:32:49,826 INFO L386 tUnfolder$Statistics]: existing Event has 84 ancestors and is cut-off event [2022-11-18 20:32:49,826 INFO L386 tUnfolder$Statistics]: existing Event has 84 ancestors and is cut-off event [2022-11-18 20:32:49,830 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([517] L722-2-->L723: Formula: (= v_salethreadThread3of3ForFork0_~_numberOfSeatsSold~0_1 v_~numberOfSeatsSold~0_1) InVars {~numberOfSeatsSold~0=v_~numberOfSeatsSold~0_1} OutVars{~numberOfSeatsSold~0=v_~numberOfSeatsSold~0_1, salethreadThread3of3ForFork0_~_numberOfSeatsSold~0=v_salethreadThread3of3ForFork0_~_numberOfSeatsSold~0_1} AuxVars[] AssignedVars[salethreadThread3of3ForFork0_~_numberOfSeatsSold~0][136], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 15), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 425#(and (= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0) (= ~numberOfSeatsSold~0 0)), Black: 134#true, Black: 140#true, 146#true, 40#L723true, salethreadThread1of3ForFork0InUse, 21#L728true, salethreadThread2of3ForFork0NotInUse, salethreadThread3of3ForFork0InUse, 126#true]) [2022-11-18 20:32:49,830 INFO L383 tUnfolder$Statistics]: this new event has 85 ancestors and is not cut-off event [2022-11-18 20:32:49,843 INFO L386 tUnfolder$Statistics]: existing Event has 90 ancestors and is not cut-off event [2022-11-18 20:32:49,843 INFO L386 tUnfolder$Statistics]: existing Event has 90 ancestors and is not cut-off event [2022-11-18 20:32:49,843 INFO L386 tUnfolder$Statistics]: existing Event has 85 ancestors and is not cut-off event [2022-11-18 20:32:49,983 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([548] salethreadEXIT-->L750-7: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_16| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_salethreadThread3of3ForFork0_thidvar0_4) InVars {salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} OutVars{salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} AuxVars[] AssignedVars[][177], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 15), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 134#true, 97#L721-3true, 87#L721-3true, 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0InUse, 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-18 20:32:49,983 INFO L383 tUnfolder$Statistics]: this new event has 88 ancestors and is cut-off event [2022-11-18 20:32:49,983 INFO L386 tUnfolder$Statistics]: existing Event has 88 ancestors and is cut-off event [2022-11-18 20:32:49,984 INFO L386 tUnfolder$Statistics]: existing Event has 88 ancestors and is cut-off event [2022-11-18 20:32:49,984 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-18 20:32:50,887 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([548] salethreadEXIT-->L750-7: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_16| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_salethreadThread3of3ForFork0_thidvar0_4) InVars {salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} OutVars{salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} AuxVars[] AssignedVars[][177], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 15), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 134#true, 87#L721-3true, 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-18 20:32:50,887 INFO L383 tUnfolder$Statistics]: this new event has 97 ancestors and is cut-off event [2022-11-18 20:32:50,887 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:32:50,888 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:32:50,888 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:32:50,900 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([548] salethreadEXIT-->L750-7: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_16| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_salethreadThread3of3ForFork0_thidvar0_4) InVars {salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} OutVars{salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} AuxVars[] AssignedVars[][175], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 15), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 425#(and (= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0) (= ~numberOfSeatsSold~0 0)), Black: 134#true, Black: 140#true, 146#true, salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, 21#L728true, salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-18 20:32:50,900 INFO L383 tUnfolder$Statistics]: this new event has 101 ancestors and is cut-off event [2022-11-18 20:32:50,900 INFO L386 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-11-18 20:32:50,900 INFO L386 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-11-18 20:32:50,900 INFO L386 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-11-18 20:32:50,961 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([548] salethreadEXIT-->L750-7: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_16| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_salethreadThread3of3ForFork0_thidvar0_4) InVars {salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} OutVars{salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} AuxVars[] AssignedVars[][177], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 15), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 134#true, 97#L721-3true, 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-18 20:32:50,961 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:32:50,962 INFO L386 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-11-18 20:32:50,962 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:32:50,962 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:32:51,638 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([548] salethreadEXIT-->L750-7: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_16| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_salethreadThread3of3ForFork0_thidvar0_4) InVars {salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} OutVars{salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} AuxVars[] AssignedVars[][177], [146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), Black: 306#(< |ULTIMATE.start_main_~i~0#1| 15), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0NotInUse, 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), salethreadThread3of3ForFork0NotInUse, Black: 134#true, 126#true]) [2022-11-18 20:32:51,639 INFO L383 tUnfolder$Statistics]: this new event has 116 ancestors and is cut-off event [2022-11-18 20:32:51,639 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-18 20:32:51,639 INFO L386 tUnfolder$Statistics]: existing Event has 116 ancestors and is cut-off event [2022-11-18 20:32:51,639 INFO L386 tUnfolder$Statistics]: existing Event has 116 ancestors and is cut-off event [2022-11-18 20:32:51,721 INFO L130 PetriNetUnfolder]: 7626/31979 cut-off events. [2022-11-18 20:32:51,721 INFO L131 PetriNetUnfolder]: For 7994/14839 co-relation queries the response was YES. [2022-11-18 20:32:51,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51791 conditions, 31979 events. 7626/31979 cut-off events. For 7994/14839 co-relation queries the response was YES. Maximal size of possible extension queue 1395. Compared 455850 event pairs, 2221 based on Foata normal form. 112/27121 useless extension candidates. Maximal degree in co-relation 51779. Up to 4756 conditions per place. [2022-11-18 20:32:51,935 INFO L137 encePairwiseOnDemand]: 122/128 looper letters, 69 selfloop transitions, 7 changer transitions 0/190 dead transitions. [2022-11-18 20:32:51,935 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 190 transitions, 803 flow [2022-11-18 20:32:51,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:32:51,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:32:51,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 528 transitions. [2022-11-18 20:32:51,937 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.825 [2022-11-18 20:32:51,937 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 528 transitions. [2022-11-18 20:32:51,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 528 transitions. [2022-11-18 20:32:51,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:32:51,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 528 transitions. [2022-11-18 20:32:51,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.6) internal successors, (528), 5 states have internal predecessors, (528), 0 states have call successors, (0), 0 states 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 20:32:51,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 128.0) internal successors, (768), 6 states have internal predecessors, (768), 0 states have call successors, (0), 0 states 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 20:32:51,941 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 128.0) internal successors, (768), 6 states have internal predecessors, (768), 0 states have call successors, (0), 0 states 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 20:32:51,941 INFO L175 Difference]: Start difference. First operand has 131 places, 142 transitions, 454 flow. Second operand 5 states and 528 transitions. [2022-11-18 20:32:51,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 190 transitions, 803 flow [2022-11-18 20:32:51,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 190 transitions, 797 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-18 20:32:51,949 INFO L231 Difference]: Finished difference. Result has 137 places, 148 transitions, 511 flow [2022-11-18 20:32:51,950 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=511, PETRI_PLACES=137, PETRI_TRANSITIONS=148} [2022-11-18 20:32:51,950 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, 14 predicate places. [2022-11-18 20:32:51,950 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 148 transitions, 511 flow [2022-11-18 20:32:51,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 0 states have call successors, (0), 0 states 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 20:32:51,951 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:32:51,951 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:32:51,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 20:32:51,951 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:32:51,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:51,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1860258400, now seen corresponding path program 1 times [2022-11-18 20:32:51,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:51,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319107498] [2022-11-18 20:32:51,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:51,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:51,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:52,042 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:32:52,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:52,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319107498] [2022-11-18 20:32:52,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319107498] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:32:52,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:32:52,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:32:52,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114192027] [2022-11-18 20:32:52,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:32:52,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:32:52,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:52,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:32:52,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:32:52,046 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 128 [2022-11-18 20:32:52,046 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 148 transitions, 511 flow. Second operand has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 0 states have call successors, (0), 0 states 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 20:32:52,046 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:32:52,047 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 128 [2022-11-18 20:32:52,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:32:54,916 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([548] salethreadEXIT-->L750-7: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_16| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_salethreadThread3of3ForFork0_thidvar0_4) InVars {salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} OutVars{salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} AuxVars[] AssignedVars[][172], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 15), 433#(= salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 0), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 425#(and (= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0) (= ~numberOfSeatsSold~0 0)), Black: 134#true, Black: 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), 97#L721-3true, Black: 422#(= ~numberOfSeatsSold~0 0), 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), 420#true, salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-18 20:32:54,917 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:32:54,917 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:32:54,917 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:32:54,917 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:32:55,789 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([548] salethreadEXIT-->L750-7: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_16| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_salethreadThread3of3ForFork0_thidvar0_4) InVars {salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} OutVars{salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} AuxVars[] AssignedVars[][172], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 15), 433#(= salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 0), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 425#(and (= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0) (= ~numberOfSeatsSold~0 0)), Black: 134#true, Black: 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), Black: 422#(= ~numberOfSeatsSold~0 0), 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), 420#true, salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0NotInUse, salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-18 20:32:55,789 INFO L383 tUnfolder$Statistics]: this new event has 116 ancestors and is cut-off event [2022-11-18 20:32:55,790 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-18 20:32:55,790 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-18 20:32:55,790 INFO L386 tUnfolder$Statistics]: existing Event has 116 ancestors and is cut-off event [2022-11-18 20:32:56,039 INFO L130 PetriNetUnfolder]: 7497/33079 cut-off events. [2022-11-18 20:32:56,039 INFO L131 PetriNetUnfolder]: For 16027/21821 co-relation queries the response was YES. [2022-11-18 20:32:56,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58016 conditions, 33079 events. 7497/33079 cut-off events. For 16027/21821 co-relation queries the response was YES. Maximal size of possible extension queue 1427. Compared 479988 event pairs, 2293 based on Foata normal form. 208/28502 useless extension candidates. Maximal degree in co-relation 58000. Up to 4780 conditions per place. [2022-11-18 20:32:56,296 INFO L137 encePairwiseOnDemand]: 122/128 looper letters, 62 selfloop transitions, 10 changer transitions 0/186 dead transitions. [2022-11-18 20:32:56,296 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 186 transitions, 838 flow [2022-11-18 20:32:56,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:32:56,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:32:56,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 525 transitions. [2022-11-18 20:32:56,299 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8203125 [2022-11-18 20:32:56,300 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 525 transitions. [2022-11-18 20:32:56,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 525 transitions. [2022-11-18 20:32:56,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:32:56,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 525 transitions. [2022-11-18 20:32:56,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.0) internal successors, (525), 5 states have internal predecessors, (525), 0 states have call successors, (0), 0 states 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 20:32:56,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 128.0) internal successors, (768), 6 states have internal predecessors, (768), 0 states have call successors, (0), 0 states 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 20:32:56,305 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 128.0) internal successors, (768), 6 states have internal predecessors, (768), 0 states have call successors, (0), 0 states 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 20:32:56,305 INFO L175 Difference]: Start difference. First operand has 137 places, 148 transitions, 511 flow. Second operand 5 states and 525 transitions. [2022-11-18 20:32:56,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 186 transitions, 838 flow [2022-11-18 20:32:56,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 186 transitions, 834 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:32:56,346 INFO L231 Difference]: Finished difference. Result has 143 places, 152 transitions, 574 flow [2022-11-18 20:32:56,346 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=574, PETRI_PLACES=143, PETRI_TRANSITIONS=152} [2022-11-18 20:32:56,347 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, 20 predicate places. [2022-11-18 20:32:56,347 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 152 transitions, 574 flow [2022-11-18 20:32:56,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 0 states have call successors, (0), 0 states 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 20:32:56,348 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:32:56,348 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:32:56,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 20:32:56,349 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:32:56,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:56,349 INFO L85 PathProgramCache]: Analyzing trace with hash -871650852, now seen corresponding path program 1 times [2022-11-18 20:32:56,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:56,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507897615] [2022-11-18 20:32:56,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:56,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:32:56,364 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:32:56,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:32:56,397 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:32:56,398 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:32:56,398 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (21 of 22 remaining) [2022-11-18 20:32:56,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2022-11-18 20:32:56,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2022-11-18 20:32:56,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2022-11-18 20:32:56,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2022-11-18 20:32:56,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2022-11-18 20:32:56,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2022-11-18 20:32:56,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2022-11-18 20:32:56,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2022-11-18 20:32:56,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2022-11-18 20:32:56,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 22 remaining) [2022-11-18 20:32:56,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2022-11-18 20:32:56,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2022-11-18 20:32:56,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2022-11-18 20:32:56,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2022-11-18 20:32:56,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2022-11-18 20:32:56,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2022-11-18 20:32:56,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2022-11-18 20:32:56,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2022-11-18 20:32:56,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2022-11-18 20:32:56,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2022-11-18 20:32:56,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2022-11-18 20:32:56,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 20:32:56,403 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:32:56,408 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2022-11-18 20:32:56,409 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:32:56,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:32:56 BasicIcfg [2022-11-18 20:32:56,530 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:32:56,531 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:32:56,531 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:32:56,531 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:32:56,532 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:32:35" (3/4) ... [2022-11-18 20:32:56,535 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:32:56,535 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:32:56,536 INFO L158 Benchmark]: Toolchain (without parser) took 22696.42ms. Allocated memory was 163.6MB in the beginning and 7.1GB in the end (delta: 6.9GB). Free memory was 129.9MB in the beginning and 6.3GB in the end (delta: -6.2GB). Peak memory consumption was 749.2MB. Max. memory is 16.1GB. [2022-11-18 20:32:56,537 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 90.2MB. Free memory was 44.4MB in the beginning and 44.3MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:32:56,538 INFO L158 Benchmark]: CACSL2BoogieTranslator took 642.70ms. Allocated memory is still 163.6MB. Free memory was 129.4MB in the beginning and 130.3MB in the end (delta: -845.4kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:32:56,538 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.42ms. Allocated memory is still 163.6MB. Free memory was 130.3MB in the beginning and 128.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:32:56,539 INFO L158 Benchmark]: Boogie Preprocessor took 58.21ms. Allocated memory is still 163.6MB. Free memory was 128.2MB in the beginning and 126.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:32:56,539 INFO L158 Benchmark]: RCFGBuilder took 759.39ms. Allocated memory is still 163.6MB. Free memory was 126.6MB in the beginning and 109.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-18 20:32:56,539 INFO L158 Benchmark]: TraceAbstraction took 21161.65ms. Allocated memory was 163.6MB in the beginning and 7.1GB in the end (delta: 6.9GB). Free memory was 109.3MB in the beginning and 6.3GB in the end (delta: -6.2GB). Peak memory consumption was 728.8MB. Max. memory is 16.1GB. [2022-11-18 20:32:56,540 INFO L158 Benchmark]: Witness Printer took 4.56ms. Allocated memory is still 7.1GB. Free memory was 6.3GB in the beginning and 6.3GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:32:56,543 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 90.2MB. Free memory was 44.4MB in the beginning and 44.3MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 642.70ms. Allocated memory is still 163.6MB. Free memory was 129.4MB in the beginning and 130.3MB in the end (delta: -845.4kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.42ms. Allocated memory is still 163.6MB. Free memory was 130.3MB in the beginning and 128.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.21ms. Allocated memory is still 163.6MB. Free memory was 128.2MB in the beginning and 126.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 759.39ms. Allocated memory is still 163.6MB. Free memory was 126.6MB in the beginning and 109.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 21161.65ms. Allocated memory was 163.6MB in the beginning and 7.1GB in the end (delta: 6.9GB). Free memory was 109.3MB in the beginning and 6.3GB in the end (delta: -6.2GB). Peak memory consumption was 728.8MB. Max. memory is 16.1GB. * Witness Printer took 4.56ms. Allocated memory is still 7.1GB. Free memory was 6.3GB in the beginning and 6.3GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 722]: Data race detected Data race detected The following path leads to a data race: [L718] 0 int stopSales; VAL [stopSales=0] [L719] 0 int numOfTickets; VAL [numOfTickets=0, stopSales=0] [L717] 0 int numberOfSeatsSold; VAL [numberOfSeatsSold=0, numOfTickets=0, stopSales=0] [L736] 0 pthread_t salethreads[15]; VAL [\old(argc)=61, argc=61, argv={62:63}, argv={62:63}, numberOfSeatsSold=0, numOfTickets=0, salethreads={3:0}, stopSales=0] [L738] 0 numOfTickets = 15 VAL [\old(argc)=61, argc=61, argv={62:63}, argv={62:63}, numberOfSeatsSold=0, numOfTickets=15, salethreads={3:0}, stopSales=0] [L741] 0 numberOfSeatsSold = 0 VAL [\old(argc)=61, argc=61, argv={62:63}, argv={62:63}, numberOfSeatsSold=0, numOfTickets=15, salethreads={3:0}, stopSales=0] [L744] 0 stopSales = 0 VAL [\old(argc)=61, argc=61, argv={62:63}, argv={62:63}, numberOfSeatsSold=0, numOfTickets=15, salethreads={3:0}, stopSales=0] [L746] 0 int i = 0; VAL [\old(argc)=61, argc=61, argv={62:63}, argv={62:63}, i=0, numberOfSeatsSold=0, numOfTickets=15, salethreads={3:0}, stopSales=0] [L746] COND TRUE 0 i < 15 VAL [\old(argc)=61, argc=61, argv={62:63}, argv={62:63}, i=0, numberOfSeatsSold=0, numOfTickets=15, salethreads={3:0}, stopSales=0] [L747] FCALL, FORK 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(argc)=61, arg={0:0}, argc=61, argv={62:63}, argv={62:63}, i=0, numberOfSeatsSold=0, numOfTickets=15, pthread_create(&salethreads[i], 0, salethread, ((void *)0))=-1, salethreads={3:0}, stopSales=0] [L721] 1 !stopSales VAL [arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=15, stopSales=0] [L746] 0 i++ VAL [\old(argc)=61, arg={0:0}, arg={0:0}, argc=61, argv={62:63}, argv={62:63}, i=1, numberOfSeatsSold=0, numOfTickets=15, salethreads={3:0}, stopSales=0] [L746] COND TRUE 0 i < 15 VAL [\old(argc)=61, arg={0:0}, arg={0:0}, argc=61, argv={62:63}, argv={62:63}, i=1, numberOfSeatsSold=0, numOfTickets=15, salethreads={3:0}, stopSales=0] [L747] FCALL, FORK 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(argc)=61, arg={0:0}, arg={0:0}, argc=61, argv={62:63}, argv={62:63}, i=1, numberOfSeatsSold=0, numOfTickets=15, pthread_create(&salethreads[i], 0, salethread, ((void *)0))=0, salethreads={3:0}, stopSales=0] [L721] 2 !stopSales VAL [arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=15, stopSales=0] [L721] COND TRUE 2 !stopSales VAL [arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=15, stopSales=0] [L721] COND TRUE 1 !stopSales VAL [arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=15, stopSales=0] [L722] 1 int _numberOfSeatsSold = numberOfSeatsSold; VAL [_numberOfSeatsSold=0, arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=15, stopSales=0] [L723] COND FALSE 1 !(_numberOfSeatsSold >= (15 - (((15 / 10) == 0) ? 1 : (15 / 10)))) VAL [_numberOfSeatsSold=0, arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=15, stopSales=0] [L729] 1 numberOfSeatsSold = _numberOfSeatsSold + 1 VAL [_numberOfSeatsSold=0, arg={0:0}, arg={0:0}, numberOfSeatsSold=1, numOfTickets=15, stopSales=0] [L722] 2 int _numberOfSeatsSold = numberOfSeatsSold; VAL [_numberOfSeatsSold=0, arg={0:0}, arg={0:0}, numberOfSeatsSold=1, numOfTickets=15, stopSales=0] Now there is a data race on ~numberOfSeatsSold~0 between C: numberOfSeatsSold = _numberOfSeatsSold + 1 [729] and C: int _numberOfSeatsSold = numberOfSeatsSold; [722] - UnprovableResult [Line: 721]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 738]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 741]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 752]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 750]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 747]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 100 locations, 14 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: 1.5s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 61 IncrementalHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 9 mSDtfsCounter, 61 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=184occurred in iteration=0, InterpolantAutomatonStates: 11, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 113 ConstructedInterpolants, 0 QuantifiedInterpolants, 119 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 117 locations, 18 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: 1.9s, OverallIterations: 6, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 76 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 76 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 207 IncrementalHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 21 mSDtfsCounter, 207 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=332occurred in iteration=4, InterpolantAutomatonStates: 20, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 252 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 239 ConstructedInterpolants, 0 QuantifiedInterpolants, 311 SizeOfPredicates, 2 NumberOfNonLiveVariables, 111 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 0/3 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 - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 134 locations, 22 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: 17.4s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 16.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 171 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 171 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 414 IncrementalHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 33 mSDtfsCounter, 414 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=574occurred in iteration=7, InterpolantAutomatonStates: 30, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 339 ConstructedInterpolants, 0 QuantifiedInterpolants, 519 SizeOfPredicates, 2 NumberOfNonLiveVariables, 111 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 10/13 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 RESULT: Ultimate proved your program to be incorrect! [2022-11-18 20:32:56,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74367e3-d416-45f0-9e32-2f2ebc9ebf5c/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE