./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-deagle/airline-10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/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_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-deagle/airline-10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/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_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/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 8e894693d2d051395e42cf40effac907db7b5be7a8f5722374b3e5b36cc0228a --- 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 20:35:48,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:35:48,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:35:48,643 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:35:48,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:35:48,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:35:48,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:35:48,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:35:48,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:35:48,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:35:48,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:35:48,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:35:48,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:35:48,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:35:48,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:35:48,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:35:48,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:35:48,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:35:48,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:35:48,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:35:48,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:35:48,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:35:48,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:35:48,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:35:48,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:35:48,701 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:35:48,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:35:48,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:35:48,702 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:35:48,708 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:35:48,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:35:48,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:35:48,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:35:48,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:35:48,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:35:48,716 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:35:48,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:35:48,717 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:35:48,717 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:35:48,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:35:48,719 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:35:48,720 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:35:48,756 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:35:48,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:35:48,757 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:35:48,757 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:35:48,758 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:35:48,764 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:35:48,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:35:48,765 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:35:48,765 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:35:48,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:35:48,766 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:35:48,766 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:35:48,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:35:48,766 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:35:48,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:35:48,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:35:48,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:35:48,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:35:48,767 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:35:48,768 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:35:48,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:35:48,768 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:35:48,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:35:48,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:35:48,769 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:35:48,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:35:48,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:35:48,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:35:48,770 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:35:48,770 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:35:48,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:35:48,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:35:48,770 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:35:48,771 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:35:48,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:35:48,771 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_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e894693d2d051395e42cf40effac907db7b5be7a8f5722374b3e5b36cc0228a [2022-11-18 20:35:49,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:35:49,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:35:49,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:35:49,046 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:35:49,047 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:35:49,049 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-deagle/airline-10.i [2022-11-18 20:35:49,125 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/bin/uautomizer-TMbwUNV5ro/data/4a0386ce2/2bc065c75fbd41549acb8f004ef7ab2b/FLAG8ff546f41 [2022-11-18 20:35:49,660 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:35:49,661 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/sv-benchmarks/c/pthread-deagle/airline-10.i [2022-11-18 20:35:49,680 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/bin/uautomizer-TMbwUNV5ro/data/4a0386ce2/2bc065c75fbd41549acb8f004ef7ab2b/FLAG8ff546f41 [2022-11-18 20:35:49,971 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/bin/uautomizer-TMbwUNV5ro/data/4a0386ce2/2bc065c75fbd41549acb8f004ef7ab2b [2022-11-18 20:35:49,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:35:49,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:35:49,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:35:49,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:35:49,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:35:49,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:35:49" (1/1) ... [2022-11-18 20:35:49,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1476e838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:49, skipping insertion in model container [2022-11-18 20:35:49,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:35:49" (1/1) ... [2022-11-18 20:35:49,989 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:35:50,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:35:50,482 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_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/sv-benchmarks/c/pthread-deagle/airline-10.i[32101,32114] [2022-11-18 20:35:50,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:35:50,492 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:35:50,546 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_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/sv-benchmarks/c/pthread-deagle/airline-10.i[32101,32114] [2022-11-18 20:35:50,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:35:50,577 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:35:50,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:50 WrapperNode [2022-11-18 20:35:50,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:35:50,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:35:50,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:35:50,579 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:35:50,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:50" (1/1) ... [2022-11-18 20:35:50,599 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:50" (1/1) ... [2022-11-18 20:35:50,620 INFO L138 Inliner]: procedures = 162, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 80 [2022-11-18 20:35:50,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:35:50,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:35:50,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:35:50,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:35:50,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:50" (1/1) ... [2022-11-18 20:35:50,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:50" (1/1) ... [2022-11-18 20:35:50,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:50" (1/1) ... [2022-11-18 20:35:50,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:50" (1/1) ... [2022-11-18 20:35:50,640 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:50" (1/1) ... [2022-11-18 20:35:50,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:50" (1/1) ... [2022-11-18 20:35:50,645 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:50" (1/1) ... [2022-11-18 20:35:50,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:50" (1/1) ... [2022-11-18 20:35:50,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:35:50,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:35:50,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:35:50,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:35:50,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:50" (1/1) ... [2022-11-18 20:35:50,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:35:50,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:35:50,688 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:35:50,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:35:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:35:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:35:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:35:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:35:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:35:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure salethread [2022-11-18 20:35:50,746 INFO L138 BoogieDeclarations]: Found implementation of procedure salethread [2022-11-18 20:35:50,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:35:50,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:35:50,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:35:50,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:35:50,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:35:50,749 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 20:35:50,884 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:35:50,886 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:35:51,096 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:35:51,179 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:35:51,189 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 20:35:51,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:35:51 BoogieIcfgContainer [2022-11-18 20:35:51,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:35:51,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:35:51,197 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:35:51,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:35:51,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:35:49" (1/3) ... [2022-11-18 20:35:51,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2247800d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:35:51, skipping insertion in model container [2022-11-18 20:35:51,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:50" (2/3) ... [2022-11-18 20:35:51,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2247800d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:35:51, skipping insertion in model container [2022-11-18 20:35:51,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:35:51" (3/3) ... [2022-11-18 20:35:51,205 INFO L112 eAbstractionObserver]: Analyzing ICFG airline-10.i [2022-11-18 20:35:51,216 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:35:51,227 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:35:51,227 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-18 20:35:51,228 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:35:51,325 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-18 20:35:51,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 88 transitions, 184 flow [2022-11-18 20:35:51,445 INFO L130 PetriNetUnfolder]: 9/119 cut-off events. [2022-11-18 20:35:51,445 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:35:51,453 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 20:35:51,454 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 88 transitions, 184 flow [2022-11-18 20:35:51,459 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 88 transitions, 184 flow [2022-11-18 20:35:51,477 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:35:51,490 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;@69f60ef6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:35:51,491 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-18 20:35:51,511 INFO L130 PetriNetUnfolder]: 0/20 cut-off events. [2022-11-18 20:35:51,511 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:35:51,511 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:35:51,512 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 20:35:51,513 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 20:35:51,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:51,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1999147629, now seen corresponding path program 1 times [2022-11-18 20:35:51,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:51,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048352150] [2022-11-18 20:35:51,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:51,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:51,709 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 20:35:51,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:51,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048352150] [2022-11-18 20:35:51,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048352150] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:51,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:51,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:35:51,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063747646] [2022-11-18 20:35:51,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:51,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:35:51,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:51,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:35:51,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:35:51,773 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 88 [2022-11-18 20:35:51,776 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 20:35:51,777 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:35:51,777 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 88 [2022-11-18 20:35:51,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:35:51,859 INFO L130 PetriNetUnfolder]: 3/106 cut-off events. [2022-11-18 20:35:51,859 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 20:35:51,860 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 20:35:51,861 INFO L137 encePairwiseOnDemand]: 80/88 looper letters, 7 selfloop transitions, 0 changer transitions 0/79 dead transitions. [2022-11-18 20:35:51,862 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 79 transitions, 180 flow [2022-11-18 20:35:51,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:35:51,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-18 20:35:51,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 159 transitions. [2022-11-18 20:35:51,876 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9034090909090909 [2022-11-18 20:35:51,877 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 159 transitions. [2022-11-18 20:35:51,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 159 transitions. [2022-11-18 20:35:51,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:35:51,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 159 transitions. [2022-11-18 20:35:51,885 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 20:35:51,889 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 20:35:51,890 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 20:35:51,892 INFO L175 Difference]: Start difference. First operand has 85 places, 88 transitions, 184 flow. Second operand 2 states and 159 transitions. [2022-11-18 20:35:51,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 79 transitions, 180 flow [2022-11-18 20:35:51,896 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 20:35:51,899 INFO L231 Difference]: Finished difference. Result has 80 places, 79 transitions, 166 flow [2022-11-18 20:35:51,902 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 20:35:51,905 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, -5 predicate places. [2022-11-18 20:35:51,906 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 79 transitions, 166 flow [2022-11-18 20:35:51,906 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 20:35:51,906 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:35:51,906 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 20:35:51,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:35:51,907 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 20:35:51,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:51,908 INFO L85 PathProgramCache]: Analyzing trace with hash 676304161, now seen corresponding path program 1 times [2022-11-18 20:35:51,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:51,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370850853] [2022-11-18 20:35:51,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:51,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:51,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:52,082 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 20:35:52,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:52,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370850853] [2022-11-18 20:35:52,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370850853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:52,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:52,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:35:52,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366107585] [2022-11-18 20:35:52,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:52,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:35:52,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:52,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:35:52,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:35:52,088 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 88 [2022-11-18 20:35:52,088 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 20:35:52,089 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:35:52,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 88 [2022-11-18 20:35:52,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:35:52,207 INFO L130 PetriNetUnfolder]: 12/148 cut-off events. [2022-11-18 20:35:52,207 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 20:35:52,207 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 20:35:52,208 INFO L137 encePairwiseOnDemand]: 85/88 looper letters, 16 selfloop transitions, 2 changer transitions 0/83 dead transitions. [2022-11-18 20:35:52,209 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 83 transitions, 210 flow [2022-11-18 20:35:52,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:35:52,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:35:52,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2022-11-18 20:35:52,218 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8106060606060606 [2022-11-18 20:35:52,218 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 214 transitions. [2022-11-18 20:35:52,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 214 transitions. [2022-11-18 20:35:52,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:35:52,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 214 transitions. [2022-11-18 20:35:52,221 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 20:35:52,222 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 20:35:52,227 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 20:35:52,228 INFO L175 Difference]: Start difference. First operand has 80 places, 79 transitions, 166 flow. Second operand 3 states and 214 transitions. [2022-11-18 20:35:52,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 83 transitions, 210 flow [2022-11-18 20:35:52,229 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 20:35:52,232 INFO L231 Difference]: Finished difference. Result has 83 places, 79 transitions, 174 flow [2022-11-18 20:35:52,233 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 20:35:52,234 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, -2 predicate places. [2022-11-18 20:35:52,234 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 79 transitions, 174 flow [2022-11-18 20:35:52,234 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 20:35:52,235 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:35:52,235 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 20:35:52,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:35:52,236 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 20:35:52,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:52,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1440702948, now seen corresponding path program 1 times [2022-11-18 20:35:52,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:52,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721179698] [2022-11-18 20:35:52,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:52,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:52,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:52,365 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 20:35:52,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:52,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721179698] [2022-11-18 20:35:52,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721179698] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:52,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:52,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:35:52,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102840383] [2022-11-18 20:35:52,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:52,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:35:52,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:52,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:35:52,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:35:52,369 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 88 [2022-11-18 20:35:52,370 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 20:35:52,370 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:35:52,370 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 88 [2022-11-18 20:35:52,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:35:52,434 INFO L130 PetriNetUnfolder]: 1/131 cut-off events. [2022-11-18 20:35:52,435 INFO L131 PetriNetUnfolder]: For 8/14 co-relation queries the response was YES. [2022-11-18 20:35:52,436 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 20:35:52,436 INFO L137 encePairwiseOnDemand]: 85/88 looper letters, 8 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2022-11-18 20:35:52,437 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 79 transitions, 197 flow [2022-11-18 20:35:52,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:35:52,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:35:52,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2022-11-18 20:35:52,440 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8257575757575758 [2022-11-18 20:35:52,440 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 218 transitions. [2022-11-18 20:35:52,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 218 transitions. [2022-11-18 20:35:52,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:35:52,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 218 transitions. [2022-11-18 20:35:52,442 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 20:35:52,443 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 20:35:52,444 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 20:35:52,444 INFO L175 Difference]: Start difference. First operand has 83 places, 79 transitions, 174 flow. Second operand 3 states and 218 transitions. [2022-11-18 20:35:52,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 79 transitions, 197 flow [2022-11-18 20:35:52,446 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 20:35:52,447 INFO L231 Difference]: Finished difference. Result has 82 places, 78 transitions, 172 flow [2022-11-18 20:35:52,448 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 20:35:52,448 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, -3 predicate places. [2022-11-18 20:35:52,449 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 78 transitions, 172 flow [2022-11-18 20:35:52,449 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 20:35:52,449 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:35:52,450 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 20:35:52,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:35:52,450 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 20:35:52,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:52,451 INFO L85 PathProgramCache]: Analyzing trace with hash 373619005, now seen corresponding path program 1 times [2022-11-18 20:35:52,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:52,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785225513] [2022-11-18 20:35:52,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:52,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:52,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:52,508 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 20:35:52,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:52,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785225513] [2022-11-18 20:35:52,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785225513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:52,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:52,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:35:52,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119129330] [2022-11-18 20:35:52,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:52,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:35:52,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:52,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:35:52,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:35:52,513 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 88 [2022-11-18 20:35:52,513 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 20:35:52,513 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:35:52,513 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 88 [2022-11-18 20:35:52,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:35:52,565 INFO L130 PetriNetUnfolder]: 7/188 cut-off events. [2022-11-18 20:35:52,565 INFO L131 PetriNetUnfolder]: For 10/16 co-relation queries the response was YES. [2022-11-18 20:35:52,566 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 20:35:52,567 INFO L137 encePairwiseOnDemand]: 82/88 looper letters, 11 selfloop transitions, 3 changer transitions 11/81 dead transitions. [2022-11-18 20:35:52,567 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 81 transitions, 213 flow [2022-11-18 20:35:52,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:35:52,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:35:52,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 216 transitions. [2022-11-18 20:35:52,569 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8181818181818182 [2022-11-18 20:35:52,569 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 216 transitions. [2022-11-18 20:35:52,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 216 transitions. [2022-11-18 20:35:52,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:35:52,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 216 transitions. [2022-11-18 20:35:52,571 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 20:35:52,572 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 20:35:52,573 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 20:35:52,573 INFO L175 Difference]: Start difference. First operand has 82 places, 78 transitions, 172 flow. Second operand 3 states and 216 transitions. [2022-11-18 20:35:52,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 81 transitions, 213 flow [2022-11-18 20:35:52,574 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 20:35:52,575 INFO L231 Difference]: Finished difference. Result has 83 places, 69 transitions, 168 flow [2022-11-18 20:35:52,576 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 20:35:52,577 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, -2 predicate places. [2022-11-18 20:35:52,577 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 69 transitions, 168 flow [2022-11-18 20:35:52,577 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 20:35:52,577 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:35:52,578 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 20:35:52,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:35:52,578 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 20:35:52,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:52,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1959545260, now seen corresponding path program 1 times [2022-11-18 20:35:52,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:52,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004444090] [2022-11-18 20:35:52,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:52,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:52,604 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:35:52,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:52,642 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:35:52,642 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:35:52,643 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 14 remaining) [2022-11-18 20:35:52,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2022-11-18 20:35:52,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2022-11-18 20:35:52,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2022-11-18 20:35:52,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2022-11-18 20:35:52,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2022-11-18 20:35:52,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2022-11-18 20:35:52,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2022-11-18 20:35:52,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2022-11-18 20:35:52,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2022-11-18 20:35:52,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2022-11-18 20:35:52,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2022-11-18 20:35:52,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2022-11-18 20:35:52,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2022-11-18 20:35:52,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:35:52,650 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-18 20:35:52,652 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 20:35:52,652 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-18 20:35:52,674 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 20:35:52,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 108 transitions, 234 flow [2022-11-18 20:35:52,710 INFO L130 PetriNetUnfolder]: 18/209 cut-off events. [2022-11-18 20:35:52,710 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 20:35:52,712 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 20:35:52,712 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 108 transitions, 234 flow [2022-11-18 20:35:52,714 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 108 transitions, 234 flow [2022-11-18 20:35:52,731 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:35:52,732 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;@69f60ef6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:35:52,732 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-18 20:35:52,735 INFO L130 PetriNetUnfolder]: 0/20 cut-off events. [2022-11-18 20:35:52,735 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:35:52,735 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:35:52,735 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 20:35:52,736 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 20:35:52,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:52,736 INFO L85 PathProgramCache]: Analyzing trace with hash -746215681, now seen corresponding path program 1 times [2022-11-18 20:35:52,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:52,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441853847] [2022-11-18 20:35:52,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:52,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:52,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:52,781 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 20:35:52,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:52,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441853847] [2022-11-18 20:35:52,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441853847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:52,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:52,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:35:52,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763231639] [2022-11-18 20:35:52,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:52,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:35:52,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:52,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:35:52,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:35:52,784 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 108 [2022-11-18 20:35:52,808 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 20:35:52,808 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:35:52,809 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 108 [2022-11-18 20:35:52,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:35:52,869 INFO L130 PetriNetUnfolder]: 16/208 cut-off events. [2022-11-18 20:35:52,870 INFO L131 PetriNetUnfolder]: For 36/41 co-relation queries the response was YES. [2022-11-18 20:35:52,874 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 20:35:52,875 INFO L137 encePairwiseOnDemand]: 98/108 looper letters, 11 selfloop transitions, 0 changer transitions 0/97 dead transitions. [2022-11-18 20:35:52,876 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 97 transitions, 234 flow [2022-11-18 20:35:52,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:35:52,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-18 20:35:52,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 193 transitions. [2022-11-18 20:35:52,881 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8935185185185185 [2022-11-18 20:35:52,881 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 193 transitions. [2022-11-18 20:35:52,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 193 transitions. [2022-11-18 20:35:52,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:35:52,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 193 transitions. [2022-11-18 20:35:52,884 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 20:35:52,885 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 20:35:52,886 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 20:35:52,886 INFO L175 Difference]: Start difference. First operand has 104 places, 108 transitions, 234 flow. Second operand 2 states and 193 transitions. [2022-11-18 20:35:52,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 97 transitions, 234 flow [2022-11-18 20:35:52,890 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 20:35:52,892 INFO L231 Difference]: Finished difference. Result has 97 places, 97 transitions, 212 flow [2022-11-18 20:35:52,892 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 20:35:52,896 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, -7 predicate places. [2022-11-18 20:35:52,897 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 97 transitions, 212 flow [2022-11-18 20:35:52,897 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 20:35:52,897 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:35:52,897 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 20:35:52,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:35:52,900 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 20:35:52,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:52,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1859938163, now seen corresponding path program 1 times [2022-11-18 20:35:52,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:52,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509734629] [2022-11-18 20:35:52,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:52,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:52,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:52,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:35:52,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:52,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509734629] [2022-11-18 20:35:52,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509734629] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:52,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:52,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:35:52,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932151966] [2022-11-18 20:35:52,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:52,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:35:52,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:52,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:35:52,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:35:52,990 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 108 [2022-11-18 20:35:52,990 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 20:35:52,990 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:35:52,991 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 108 [2022-11-18 20:35:52,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:35:53,120 INFO L130 PetriNetUnfolder]: 68/423 cut-off events. [2022-11-18 20:35:53,120 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-11-18 20:35:53,122 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 20:35:53,129 INFO L137 encePairwiseOnDemand]: 105/108 looper letters, 22 selfloop transitions, 2 changer transitions 0/103 dead transitions. [2022-11-18 20:35:53,129 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 103 transitions, 272 flow [2022-11-18 20:35:53,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:35:53,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:35:53,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2022-11-18 20:35:53,131 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.808641975308642 [2022-11-18 20:35:53,132 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 262 transitions. [2022-11-18 20:35:53,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 262 transitions. [2022-11-18 20:35:53,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:35:53,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 262 transitions. [2022-11-18 20:35:53,133 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 20:35:53,136 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 20:35:53,137 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 20:35:53,137 INFO L175 Difference]: Start difference. First operand has 97 places, 97 transitions, 212 flow. Second operand 3 states and 262 transitions. [2022-11-18 20:35:53,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 103 transitions, 272 flow [2022-11-18 20:35:53,139 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 20:35:53,141 INFO L231 Difference]: Finished difference. Result has 100 places, 98 transitions, 224 flow [2022-11-18 20:35:53,142 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 20:35:53,144 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, -4 predicate places. [2022-11-18 20:35:53,145 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 98 transitions, 224 flow [2022-11-18 20:35:53,145 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 20:35:53,145 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:35:53,145 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 20:35:53,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:35:53,146 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-18 20:35:53,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:53,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1310943378, now seen corresponding path program 1 times [2022-11-18 20:35:53,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:53,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143230234] [2022-11-18 20:35:53,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:53,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:53,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:53,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:35:53,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:53,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143230234] [2022-11-18 20:35:53,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143230234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:53,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:53,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:35:53,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705353013] [2022-11-18 20:35:53,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:53,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:35:53,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:53,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:35:53,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:35:53,226 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 108 [2022-11-18 20:35:53,227 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 20:35:53,227 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:35:53,227 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 108 [2022-11-18 20:35:53,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:35:53,369 INFO L130 PetriNetUnfolder]: 52/631 cut-off events. [2022-11-18 20:35:53,369 INFO L131 PetriNetUnfolder]: For 111/313 co-relation queries the response was YES. [2022-11-18 20:35:53,372 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 20:35:53,374 INFO L137 encePairwiseOnDemand]: 100/108 looper letters, 22 selfloop transitions, 6 changer transitions 0/109 dead transitions. [2022-11-18 20:35:53,375 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 109 transitions, 313 flow [2022-11-18 20:35:53,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:35:53,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:35:53,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 270 transitions. [2022-11-18 20:35:53,376 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2022-11-18 20:35:53,376 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 270 transitions. [2022-11-18 20:35:53,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 270 transitions. [2022-11-18 20:35:53,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:35:53,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 270 transitions. [2022-11-18 20:35:53,379 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 20:35:53,380 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 20:35:53,380 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 20:35:53,382 INFO L175 Difference]: Start difference. First operand has 100 places, 98 transitions, 224 flow. Second operand 3 states and 270 transitions. [2022-11-18 20:35:53,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 109 transitions, 313 flow [2022-11-18 20:35:53,384 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 20:35:53,389 INFO L231 Difference]: Finished difference. Result has 103 places, 104 transitions, 274 flow [2022-11-18 20:35:53,389 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 20:35:53,391 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, -1 predicate places. [2022-11-18 20:35:53,391 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 104 transitions, 274 flow [2022-11-18 20:35:53,392 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 20:35:53,393 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:35:53,393 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 20:35:53,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:35:53,394 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-18 20:35:53,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:53,395 INFO L85 PathProgramCache]: Analyzing trace with hash 176942779, now seen corresponding path program 1 times [2022-11-18 20:35:53,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:53,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161992025] [2022-11-18 20:35:53,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:53,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:53,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:53,451 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 20:35:53,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:53,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161992025] [2022-11-18 20:35:53,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161992025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:53,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:53,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:35:53,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436096889] [2022-11-18 20:35:53,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:53,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:35:53,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:53,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:35:53,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:35:53,457 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 108 [2022-11-18 20:35:53,457 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 20:35:53,457 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:35:53,457 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 108 [2022-11-18 20:35:53,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:35:53,780 INFO L130 PetriNetUnfolder]: 266/1659 cut-off events. [2022-11-18 20:35:53,780 INFO L131 PetriNetUnfolder]: For 362/767 co-relation queries the response was YES. [2022-11-18 20:35:53,785 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 20:35:53,791 INFO L137 encePairwiseOnDemand]: 97/108 looper letters, 27 selfloop transitions, 8 changer transitions 0/117 dead transitions. [2022-11-18 20:35:53,791 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 117 transitions, 389 flow [2022-11-18 20:35:53,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:35:53,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:35:53,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 267 transitions. [2022-11-18 20:35:53,792 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8240740740740741 [2022-11-18 20:35:53,793 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 267 transitions. [2022-11-18 20:35:53,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 267 transitions. [2022-11-18 20:35:53,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:35:53,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 267 transitions. [2022-11-18 20:35:53,794 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 20:35:53,795 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 20:35:53,795 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 20:35:53,795 INFO L175 Difference]: Start difference. First operand has 103 places, 104 transitions, 274 flow. Second operand 3 states and 267 transitions. [2022-11-18 20:35:53,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 117 transitions, 389 flow [2022-11-18 20:35:53,798 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 20:35:53,799 INFO L231 Difference]: Finished difference. Result has 105 places, 112 transitions, 332 flow [2022-11-18 20:35:53,800 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 20:35:53,800 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, 1 predicate places. [2022-11-18 20:35:53,801 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 112 transitions, 332 flow [2022-11-18 20:35:53,801 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 20:35:53,803 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:35:53,803 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 20:35:53,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:35:53,805 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 20:35:53,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:53,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1184394343, now seen corresponding path program 1 times [2022-11-18 20:35:53,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:53,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456932890] [2022-11-18 20:35:53,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:53,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:53,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:53,928 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 20:35:53,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:53,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456932890] [2022-11-18 20:35:53,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456932890] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:35:53,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907768946] [2022-11-18 20:35:53,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:53,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:35:53,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:35:53,934 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:35:53,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:35:54,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:54,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:35:54,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:35:54,146 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 20:35:54,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:35:54,213 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 20:35:54,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907768946] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:35:54,214 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:35:54,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 20:35:54,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919916139] [2022-11-18 20:35:54,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:35:54,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:35:54,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:54,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:35:54,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:35:54,223 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 108 [2022-11-18 20:35:54,224 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 20:35:54,224 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:35:54,225 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 108 [2022-11-18 20:35:54,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:35:54,454 INFO L130 PetriNetUnfolder]: 196/645 cut-off events. [2022-11-18 20:35:54,454 INFO L131 PetriNetUnfolder]: For 445/620 co-relation queries the response was YES. [2022-11-18 20:35:54,457 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 20:35:54,460 INFO L137 encePairwiseOnDemand]: 103/108 looper letters, 50 selfloop transitions, 7 changer transitions 0/117 dead transitions. [2022-11-18 20:35:54,461 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 117 transitions, 512 flow [2022-11-18 20:35:54,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:35:54,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:35:54,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 745 transitions. [2022-11-18 20:35:54,464 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7664609053497943 [2022-11-18 20:35:54,464 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 745 transitions. [2022-11-18 20:35:54,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 745 transitions. [2022-11-18 20:35:54,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:35:54,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 745 transitions. [2022-11-18 20:35:54,467 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 20:35:54,469 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 20:35:54,469 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 20:35:54,470 INFO L175 Difference]: Start difference. First operand has 105 places, 112 transitions, 332 flow. Second operand 9 states and 745 transitions. [2022-11-18 20:35:54,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 117 transitions, 512 flow [2022-11-18 20:35:54,475 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 20:35:54,477 INFO L231 Difference]: Finished difference. Result has 84 places, 83 transitions, 252 flow [2022-11-18 20:35:54,477 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 20:35:54,478 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, -20 predicate places. [2022-11-18 20:35:54,478 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 83 transitions, 252 flow [2022-11-18 20:35:54,479 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 20:35:54,479 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:35:54,479 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 20:35:54,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:35:54,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:35:54,685 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 20:35:54,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:54,686 INFO L85 PathProgramCache]: Analyzing trace with hash 96829731, now seen corresponding path program 1 times [2022-11-18 20:35:54,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:54,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242473294] [2022-11-18 20:35:54,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:54,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:54,707 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:35:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:54,739 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:35:54,740 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:35:54,740 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2022-11-18 20:35:54,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2022-11-18 20:35:54,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2022-11-18 20:35:54,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2022-11-18 20:35:54,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2022-11-18 20:35:54,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2022-11-18 20:35:54,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2022-11-18 20:35:54,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2022-11-18 20:35:54,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2022-11-18 20:35:54,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2022-11-18 20:35:54,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2022-11-18 20:35:54,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2022-11-18 20:35:54,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2022-11-18 20:35:54,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2022-11-18 20:35:54,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2022-11-18 20:35:54,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2022-11-18 20:35:54,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2022-11-18 20:35:54,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2022-11-18 20:35:54,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:35:54,744 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-18 20:35:54,744 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 20:35:54,745 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-18 20:35:54,782 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 20:35:54,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 128 transitions, 286 flow [2022-11-18 20:35:54,836 INFO L130 PetriNetUnfolder]: 34/360 cut-off events. [2022-11-18 20:35:54,836 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-18 20:35:54,838 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 20:35:54,838 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 128 transitions, 286 flow [2022-11-18 20:35:54,843 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 128 transitions, 286 flow [2022-11-18 20:35:54,846 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:35:54,847 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;@69f60ef6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:35:54,847 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-11-18 20:35:54,849 INFO L130 PetriNetUnfolder]: 0/20 cut-off events. [2022-11-18 20:35:54,850 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:35:54,850 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:35:54,850 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 20:35:54,850 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 20:35:54,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:54,851 INFO L85 PathProgramCache]: Analyzing trace with hash 579667839, now seen corresponding path program 1 times [2022-11-18 20:35:54,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:54,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567508886] [2022-11-18 20:35:54,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:54,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:54,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:35:54,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:54,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567508886] [2022-11-18 20:35:54,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567508886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:54,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:54,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:35:54,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303429013] [2022-11-18 20:35:54,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:54,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:35:54,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:54,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:35:54,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:35:54,876 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 128 [2022-11-18 20:35:54,876 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 20:35:54,876 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:35:54,876 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 128 [2022-11-18 20:35:54,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:35:54,966 INFO L130 PetriNetUnfolder]: 84/453 cut-off events. [2022-11-18 20:35:54,967 INFO L131 PetriNetUnfolder]: For 191/217 co-relation queries the response was YES. [2022-11-18 20:35:54,969 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 20:35:54,972 INFO L137 encePairwiseOnDemand]: 116/128 looper letters, 15 selfloop transitions, 0 changer transitions 0/115 dead transitions. [2022-11-18 20:35:54,972 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 115 transitions, 290 flow [2022-11-18 20:35:54,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:35:54,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-18 20:35:54,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 227 transitions. [2022-11-18 20:35:54,974 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.88671875 [2022-11-18 20:35:54,974 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 227 transitions. [2022-11-18 20:35:54,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 227 transitions. [2022-11-18 20:35:54,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:35:54,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 227 transitions. [2022-11-18 20:35:54,976 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 20:35:54,976 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 20:35:54,979 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 20:35:54,979 INFO L175 Difference]: Start difference. First operand has 123 places, 128 transitions, 286 flow. Second operand 2 states and 227 transitions. [2022-11-18 20:35:54,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 115 transitions, 290 flow [2022-11-18 20:35:54,980 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 20:35:54,982 INFO L231 Difference]: Finished difference. Result has 114 places, 115 transitions, 260 flow [2022-11-18 20:35:54,983 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 20:35:54,984 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, -9 predicate places. [2022-11-18 20:35:54,984 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 115 transitions, 260 flow [2022-11-18 20:35:54,984 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 20:35:54,984 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:35:54,984 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 20:35:54,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:35:54,987 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 20:35:54,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:54,987 INFO L85 PathProgramCache]: Analyzing trace with hash -93669107, now seen corresponding path program 1 times [2022-11-18 20:35:54,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:54,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289403553] [2022-11-18 20:35:54,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:54,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:55,021 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 20:35:55,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:55,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289403553] [2022-11-18 20:35:55,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289403553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:55,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:55,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:35:55,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367508516] [2022-11-18 20:35:55,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:55,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:35:55,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:55,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:35:55,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:35:55,024 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 128 [2022-11-18 20:35:55,025 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 20:35:55,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:35:55,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 128 [2022-11-18 20:35:55,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:35:55,265 INFO L130 PetriNetUnfolder]: 258/1209 cut-off events. [2022-11-18 20:35:55,265 INFO L131 PetriNetUnfolder]: For 200/200 co-relation queries the response was YES. [2022-11-18 20:35:55,271 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 20:35:55,277 INFO L137 encePairwiseOnDemand]: 125/128 looper letters, 26 selfloop transitions, 2 changer transitions 0/121 dead transitions. [2022-11-18 20:35:55,278 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 121 transitions, 328 flow [2022-11-18 20:35:55,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:35:55,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:35:55,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 308 transitions. [2022-11-18 20:35:55,279 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8020833333333334 [2022-11-18 20:35:55,280 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 308 transitions. [2022-11-18 20:35:55,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 308 transitions. [2022-11-18 20:35:55,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:35:55,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 308 transitions. [2022-11-18 20:35:55,281 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 20:35:55,282 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 20:35:55,282 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 20:35:55,283 INFO L175 Difference]: Start difference. First operand has 114 places, 115 transitions, 260 flow. Second operand 3 states and 308 transitions. [2022-11-18 20:35:55,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 121 transitions, 328 flow [2022-11-18 20:35:55,284 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 20:35:55,286 INFO L231 Difference]: Finished difference. Result has 117 places, 116 transitions, 272 flow [2022-11-18 20:35:55,286 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 20:35:55,287 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, -6 predicate places. [2022-11-18 20:35:55,287 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 116 transitions, 272 flow [2022-11-18 20:35:55,287 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 20:35:55,288 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:35:55,288 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 20:35:55,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:35:55,288 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:35:55,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:55,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1706220828, now seen corresponding path program 1 times [2022-11-18 20:35:55,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:55,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290201586] [2022-11-18 20:35:55,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:55,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:55,317 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 20:35:55,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:55,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290201586] [2022-11-18 20:35:55,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290201586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:55,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:55,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:35:55,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805856111] [2022-11-18 20:35:55,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:55,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:35:55,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:55,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:35:55,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:35:55,320 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 128 [2022-11-18 20:35:55,320 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 20:35:55,320 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:35:55,320 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 128 [2022-11-18 20:35:55,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:35:55,919 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 20:35:55,919 INFO L383 tUnfolder$Statistics]: this new event has 96 ancestors and is cut-off event [2022-11-18 20:35:55,919 INFO L386 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-11-18 20:35:55,919 INFO L386 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-11-18 20:35:55,920 INFO L386 tUnfolder$Statistics]: existing Event has 63 ancestors and is cut-off event [2022-11-18 20:35:55,920 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][82], [33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, 134#true, 129#true, salethreadThread3of3ForFork0NotInUse, 97#L721-3true, 126#true]) [2022-11-18 20:35:55,920 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:35:55,920 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-18 20:35:55,920 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:35:55,920 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-18 20:35:55,921 INFO L381 tUnfolder$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 20:35:55,921 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:35:55,921 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:35:55,921 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-18 20:35:55,921 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-18 20:35:55,964 INFO L130 PetriNetUnfolder]: 654/3901 cut-off events. [2022-11-18 20:35:55,965 INFO L131 PetriNetUnfolder]: For 1338/3693 co-relation queries the response was YES. [2022-11-18 20:35:55,984 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 20:35:56,005 INFO L137 encePairwiseOnDemand]: 116/128 looper letters, 32 selfloop transitions, 9 changer transitions 0/133 dead transitions. [2022-11-18 20:35:56,005 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 133 transitions, 409 flow [2022-11-18 20:35:56,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:35:56,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:35:56,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 317 transitions. [2022-11-18 20:35:56,007 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8255208333333334 [2022-11-18 20:35:56,007 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 317 transitions. [2022-11-18 20:35:56,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 317 transitions. [2022-11-18 20:35:56,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:35:56,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 317 transitions. [2022-11-18 20:35:56,009 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 20:35:56,010 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 20:35:56,010 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 20:35:56,010 INFO L175 Difference]: Start difference. First operand has 117 places, 116 transitions, 272 flow. Second operand 3 states and 317 transitions. [2022-11-18 20:35:56,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 133 transitions, 409 flow [2022-11-18 20:35:56,012 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 20:35:56,014 INFO L231 Difference]: Finished difference. Result has 120 places, 125 transitions, 348 flow [2022-11-18 20:35:56,014 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 20:35:56,015 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, -3 predicate places. [2022-11-18 20:35:56,015 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 125 transitions, 348 flow [2022-11-18 20:35:56,016 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 20:35:56,016 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:35:56,016 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 20:35:56,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:35:56,016 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:35:56,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:56,017 INFO L85 PathProgramCache]: Analyzing trace with hash 913815373, now seen corresponding path program 1 times [2022-11-18 20:35:56,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:56,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2319123] [2022-11-18 20:35:56,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:56,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:56,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:56,050 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 20:35:56,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:56,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2319123] [2022-11-18 20:35:56,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2319123] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:56,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:56,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:35:56,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417300327] [2022-11-18 20:35:56,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:56,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:35:56,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:56,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:35:56,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:35:56,055 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 128 [2022-11-18 20:35:56,056 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 20:35:56,056 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:35:56,056 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 128 [2022-11-18 20:35:56,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:35:57,639 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][81], [136#(= |#race~stopSales~0| 0), 140#true, 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, 66#salethreadENTRYtrue, salethreadThread3of3ForFork0NotInUse, Black: 134#true, 126#true]) [2022-11-18 20:35:57,639 INFO L383 tUnfolder$Statistics]: this new event has 88 ancestors and is cut-off event [2022-11-18 20:35:57,639 INFO L386 tUnfolder$Statistics]: existing Event has 60 ancestors and is cut-off event [2022-11-18 20:35:57,640 INFO L386 tUnfolder$Statistics]: existing Event has 65 ancestors and is cut-off event [2022-11-18 20:35:57,640 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-18 20:35:57,833 INFO L381 tUnfolder$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 20:35:57,833 INFO L383 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-11-18 20:35:57,834 INFO L386 tUnfolder$Statistics]: existing Event has 65 ancestors and is cut-off event [2022-11-18 20:35:57,834 INFO L386 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-11-18 20:35:57,834 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-11-18 20:35:57,834 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([547] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread2of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_14| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))))) InVars {salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} OutVars{salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} AuxVars[] AssignedVars[][118], [136#(= |#race~stopSales~0| 0), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 88#L722-2true, salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, Black: 134#true, salethreadThread3of3ForFork0NotInUse, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:35:57,834 INFO L383 tUnfolder$Statistics]: this new event has 94 ancestors and is cut-off event [2022-11-18 20:35:57,835 INFO L386 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-11-18 20:35:57,835 INFO L386 tUnfolder$Statistics]: existing Event has 99 ancestors and is cut-off event [2022-11-18 20:35:57,835 INFO L386 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-11-18 20:35:57,918 INFO L381 tUnfolder$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 20:35:57,918 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:35:57,918 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-18 20:35:57,919 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-18 20:35:57,919 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:35:58,020 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][82], [33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, 134#true, Black: 136#(= |#race~stopSales~0| 0), salethreadThread2of3ForFork0InUse, salethreadThread3of3ForFork0NotInUse, 97#L721-3true, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:35:58,020 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:35:58,020 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-18 20:35:58,021 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-18 20:35:58,021 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:35:58,177 INFO L381 tUnfolder$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 20:35:58,177 INFO L383 tUnfolder$Statistics]: this new event has 99 ancestors and is cut-off event [2022-11-18 20:35:58,177 INFO L386 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2022-11-18 20:35:58,177 INFO L386 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-11-18 20:35:58,177 INFO L386 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-11-18 20:35:58,194 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][82], [136#(= |#race~stopSales~0| 0), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, 102#L722-2true, salethreadThread2of3ForFork0InUse, Black: 134#true, salethreadThread3of3ForFork0NotInUse, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:35:58,194 INFO L383 tUnfolder$Statistics]: this new event has 99 ancestors and is cut-off event [2022-11-18 20:35:58,194 INFO L386 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2022-11-18 20:35:58,195 INFO L386 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-11-18 20:35:58,195 INFO L386 tUnfolder$Statistics]: existing Event has 99 ancestors and is cut-off event [2022-11-18 20:35:58,195 INFO L386 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-11-18 20:35:58,195 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][82], [136#(= |#race~stopSales~0| 0), 106#L722-1true, 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, Black: 134#true, salethreadThread3of3ForFork0NotInUse, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:35:58,195 INFO L383 tUnfolder$Statistics]: this new event has 98 ancestors and is cut-off event [2022-11-18 20:35:58,195 INFO L386 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-11-18 20:35:58,196 INFO L386 tUnfolder$Statistics]: existing Event has 65 ancestors and is cut-off event [2022-11-18 20:35:58,196 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-18 20:35:58,593 INFO L130 PetriNetUnfolder]: 4573/16387 cut-off events. [2022-11-18 20:35:58,593 INFO L131 PetriNetUnfolder]: For 6386/11701 co-relation queries the response was YES. [2022-11-18 20:35:58,678 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 20:35:58,797 INFO L137 encePairwiseOnDemand]: 113/128 looper letters, 41 selfloop transitions, 11 changer transitions 0/147 dead transitions. [2022-11-18 20:35:58,798 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 147 transitions, 535 flow [2022-11-18 20:35:58,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:35:58,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:35:58,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 314 transitions. [2022-11-18 20:35:58,800 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8177083333333334 [2022-11-18 20:35:58,800 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 314 transitions. [2022-11-18 20:35:58,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 314 transitions. [2022-11-18 20:35:58,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:35:58,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 314 transitions. [2022-11-18 20:35:58,801 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 20:35:58,802 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 20:35:58,804 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 20:35:58,804 INFO L175 Difference]: Start difference. First operand has 120 places, 125 transitions, 348 flow. Second operand 3 states and 314 transitions. [2022-11-18 20:35:58,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 147 transitions, 535 flow [2022-11-18 20:35:58,816 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 20:35:58,819 INFO L231 Difference]: Finished difference. Result has 122 places, 136 transitions, 426 flow [2022-11-18 20:35:58,820 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 20:35:58,821 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, -1 predicate places. [2022-11-18 20:35:58,821 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 136 transitions, 426 flow [2022-11-18 20:35:58,821 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 20:35:58,821 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:35:58,822 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 20:35:58,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 20:35:58,822 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 20:35:58,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:58,823 INFO L85 PathProgramCache]: Analyzing trace with hash 469144953, now seen corresponding path program 1 times [2022-11-18 20:35:58,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:58,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503525700] [2022-11-18 20:35:58,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:58,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:58,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:58,937 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 20:35:58,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:58,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503525700] [2022-11-18 20:35:58,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503525700] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:35:58,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650428072] [2022-11-18 20:35:58,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:58,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:35:58,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:35:58,940 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:35:58,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:35:59,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:59,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:35:59,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:35:59,085 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 20:35:59,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:35:59,146 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 20:35:59,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650428072] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:35:59,146 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:35:59,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 20:35:59,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677596612] [2022-11-18 20:35:59,147 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:35:59,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:35:59,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:59,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:35:59,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:35:59,150 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 128 [2022-11-18 20:35:59,151 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 20:35:59,151 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:35:59,151 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 128 [2022-11-18 20:35:59,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:36:02,546 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 20:36:02,547 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:36:02,547 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:36:02,547 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:36:02,547 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:36:02,547 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([503] L724-->L721-3: Formula: (= v_~stopSales~0_20 1) InVars {} OutVars{salethreadThread2of3ForFork0_#t~nondet1=|v_salethreadThread2of3ForFork0_#t~nondet1_3|, ~stopSales~0=v_~stopSales~0_20, #race~stopSales~0=|v_#race~stopSales~0_24|} AuxVars[] AssignedVars[~stopSales~0, #race~stopSales~0, salethreadThread2of3ForFork0_#t~nondet1][106], [Black: 140#true, 146#true, 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, Black: 136#(= |#race~stopSales~0| 0), salethreadThread3of3ForFork0NotInUse, 97#L721-3true, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:36:02,547 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:36:02,547 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:36:02,548 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:36:02,548 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:36:02,628 INFO L381 tUnfolder$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 20:36:02,628 INFO L383 tUnfolder$Statistics]: this new event has 105 ancestors and is cut-off event [2022-11-18 20:36:02,629 INFO L386 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-11-18 20:36:02,629 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-18 20:36:02,629 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-18 20:36:02,854 INFO L130 PetriNetUnfolder]: 6176/24951 cut-off events. [2022-11-18 20:36:02,854 INFO L131 PetriNetUnfolder]: For 11078/13988 co-relation queries the response was YES. [2022-11-18 20:36:02,980 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 20:36:03,073 INFO L137 encePairwiseOnDemand]: 122/128 looper letters, 73 selfloop transitions, 9 changer transitions 0/188 dead transitions. [2022-11-18 20:36:03,073 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 188 transitions, 804 flow [2022-11-18 20:36:03,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:36:03,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:36:03,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 888 transitions. [2022-11-18 20:36:03,077 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7708333333333334 [2022-11-18 20:36:03,077 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 888 transitions. [2022-11-18 20:36:03,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 888 transitions. [2022-11-18 20:36:03,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:36:03,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 888 transitions. [2022-11-18 20:36:03,080 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 20:36:03,083 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 20:36:03,084 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 20:36:03,084 INFO L175 Difference]: Start difference. First operand has 122 places, 136 transitions, 426 flow. Second operand 9 states and 888 transitions. [2022-11-18 20:36:03,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 188 transitions, 804 flow [2022-11-18 20:36:03,180 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 20:36:03,183 INFO L231 Difference]: Finished difference. Result has 131 places, 142 transitions, 454 flow [2022-11-18 20:36:03,183 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 20:36:03,184 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, 8 predicate places. [2022-11-18 20:36:03,185 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 142 transitions, 454 flow [2022-11-18 20:36:03,185 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 20:36:03,185 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:36:03,186 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 20:36:03,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:36:03,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-18 20:36:03,398 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:36:03,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:03,398 INFO L85 PathProgramCache]: Analyzing trace with hash -593229992, now seen corresponding path program 1 times [2022-11-18 20:36:03,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:03,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449516978] [2022-11-18 20:36:03,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:03,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:03,525 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 20:36:03,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:36:03,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449516978] [2022-11-18 20:36:03,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449516978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:36:03,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:36:03,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:36:03,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149225463] [2022-11-18 20:36:03,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:36:03,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:36:03,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:36:03,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:36:03,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:36:03,528 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 128 [2022-11-18 20:36:03,528 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 20:36:03,528 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:36:03,529 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 128 [2022-11-18 20:36:03,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:36:05,331 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([541] L728-->L721-3: Formula: (= (+ v_salethreadThread1of3ForFork0_~_numberOfSeatsSold~0_7 1) v_~numberOfSeatsSold~0_14) InVars {salethreadThread1of3ForFork0_~_numberOfSeatsSold~0=v_salethreadThread1of3ForFork0_~_numberOfSeatsSold~0_7} OutVars{#race~numberOfSeatsSold~0=|v_#race~numberOfSeatsSold~0_25|, ~numberOfSeatsSold~0=v_~numberOfSeatsSold~0_14, salethreadThread1of3ForFork0_~_numberOfSeatsSold~0=v_salethreadThread1of3ForFork0_~_numberOfSeatsSold~0_7, salethreadThread1of3ForFork0_#t~nondet2=|v_salethreadThread1of3ForFork0_#t~nondet2_3|} AuxVars[] AssignedVars[~numberOfSeatsSold~0, #race~numberOfSeatsSold~0, salethreadThread1of3ForFork0_#t~nondet2][45], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 10), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 134#true, 87#L721-3true, 5#L722-2true, 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), salethreadThread3of3ForFork0InUse, 126#true]) [2022-11-18 20:36:05,331 INFO L383 tUnfolder$Statistics]: this new event has 90 ancestors and is cut-off event [2022-11-18 20:36:05,332 INFO L386 tUnfolder$Statistics]: existing Event has 90 ancestors and is cut-off event [2022-11-18 20:36:05,332 INFO L386 tUnfolder$Statistics]: existing Event has 85 ancestors and is cut-off event [2022-11-18 20:36:05,332 INFO L386 tUnfolder$Statistics]: existing Event has 85 ancestors and is cut-off event [2022-11-18 20:36:05,332 INFO L381 tUnfolder$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| 10), 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 20:36:05,332 INFO L383 tUnfolder$Statistics]: this new event has 89 ancestors and is cut-off event [2022-11-18 20:36:05,333 INFO L386 tUnfolder$Statistics]: existing Event has 89 ancestors and is cut-off event [2022-11-18 20:36:05,333 INFO L386 tUnfolder$Statistics]: existing Event has 84 ancestors and is cut-off event [2022-11-18 20:36:05,333 INFO L386 tUnfolder$Statistics]: existing Event has 84 ancestors and is cut-off event [2022-11-18 20:36:05,337 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([517] L722-2-->L723: Formula: (= v_salethreadThread3of3ForFork0_~_numberOfSeatsSold~0_1 v_~numberOfSeatsSold~0_1) InVars {~numberOfSeatsSold~0=v_~numberOfSeatsSold~0_1} OutVars{~numberOfSeatsSold~0=v_~numberOfSeatsSold~0_1, salethreadThread3of3ForFork0_~_numberOfSeatsSold~0=v_salethreadThread3of3ForFork0_~_numberOfSeatsSold~0_1} AuxVars[] AssignedVars[salethreadThread3of3ForFork0_~_numberOfSeatsSold~0][136], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 10), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 425#(and (= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0) (= ~numberOfSeatsSold~0 0)), Black: 134#true, Black: 140#true, 146#true, 40#L723true, salethreadThread1of3ForFork0InUse, 21#L728true, salethreadThread2of3ForFork0NotInUse, salethreadThread3of3ForFork0InUse, 126#true]) [2022-11-18 20:36:05,337 INFO L383 tUnfolder$Statistics]: this new event has 85 ancestors and is not cut-off event [2022-11-18 20:36:05,337 INFO L386 tUnfolder$Statistics]: existing Event has 90 ancestors and is not cut-off event [2022-11-18 20:36:05,338 INFO L386 tUnfolder$Statistics]: existing Event has 90 ancestors and is not cut-off event [2022-11-18 20:36:05,338 INFO L386 tUnfolder$Statistics]: existing Event has 85 ancestors and is not cut-off event [2022-11-18 20:36:05,447 INFO L381 tUnfolder$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| 10), 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 20:36:05,447 INFO L383 tUnfolder$Statistics]: this new event has 88 ancestors and is cut-off event [2022-11-18 20:36:05,447 INFO L386 tUnfolder$Statistics]: existing Event has 88 ancestors and is cut-off event [2022-11-18 20:36:05,447 INFO L386 tUnfolder$Statistics]: existing Event has 88 ancestors and is cut-off event [2022-11-18 20:36:05,447 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-18 20:36:06,437 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([548] salethreadEXIT-->L750-7: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_16| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_salethreadThread3of3ForFork0_thidvar0_4) InVars {salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} OutVars{salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} AuxVars[] AssignedVars[][177], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 10), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 134#true, 87#L721-3true, 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-18 20:36:06,438 INFO L383 tUnfolder$Statistics]: this new event has 97 ancestors and is cut-off event [2022-11-18 20:36:06,438 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:36:06,438 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:36:06,438 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:36:06,447 INFO L381 tUnfolder$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| 10), 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 20:36:06,448 INFO L383 tUnfolder$Statistics]: this new event has 101 ancestors and is cut-off event [2022-11-18 20:36:06,448 INFO L386 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-11-18 20:36:06,448 INFO L386 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-11-18 20:36:06,448 INFO L386 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-11-18 20:36:06,492 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([548] salethreadEXIT-->L750-7: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_16| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_salethreadThread3of3ForFork0_thidvar0_4) InVars {salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} OutVars{salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} AuxVars[] AssignedVars[][177], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 10), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 134#true, 97#L721-3true, 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-18 20:36:06,493 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:36:06,493 INFO L386 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-11-18 20:36:06,493 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:36:06,493 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:36:07,070 INFO L381 tUnfolder$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| 10), 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 20:36:07,071 INFO L383 tUnfolder$Statistics]: this new event has 116 ancestors and is cut-off event [2022-11-18 20:36:07,071 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-18 20:36:07,071 INFO L386 tUnfolder$Statistics]: existing Event has 116 ancestors and is cut-off event [2022-11-18 20:36:07,071 INFO L386 tUnfolder$Statistics]: existing Event has 116 ancestors and is cut-off event [2022-11-18 20:36:07,154 INFO L130 PetriNetUnfolder]: 7626/31979 cut-off events. [2022-11-18 20:36:07,154 INFO L131 PetriNetUnfolder]: For 7994/14839 co-relation queries the response was YES. [2022-11-18 20:36:07,271 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 20:36:07,361 INFO L137 encePairwiseOnDemand]: 122/128 looper letters, 69 selfloop transitions, 7 changer transitions 0/190 dead transitions. [2022-11-18 20:36:07,361 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 190 transitions, 803 flow [2022-11-18 20:36:07,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:36:07,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:36:07,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 528 transitions. [2022-11-18 20:36:07,364 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.825 [2022-11-18 20:36:07,364 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 528 transitions. [2022-11-18 20:36:07,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 528 transitions. [2022-11-18 20:36:07,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:36:07,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 528 transitions. [2022-11-18 20:36:07,366 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 20:36:07,367 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 20:36:07,368 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 20:36:07,368 INFO L175 Difference]: Start difference. First operand has 131 places, 142 transitions, 454 flow. Second operand 5 states and 528 transitions. [2022-11-18 20:36:07,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 190 transitions, 803 flow [2022-11-18 20:36:07,373 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 20:36:07,375 INFO L231 Difference]: Finished difference. Result has 137 places, 148 transitions, 511 flow [2022-11-18 20:36:07,376 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 20:36:07,377 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, 14 predicate places. [2022-11-18 20:36:07,377 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 148 transitions, 511 flow [2022-11-18 20:36:07,378 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 20:36:07,378 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:36:07,378 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 20:36:07,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 20:36:07,379 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:36:07,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:07,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1860258400, now seen corresponding path program 1 times [2022-11-18 20:36:07,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:07,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953392754] [2022-11-18 20:36:07,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:07,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:07,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:07,678 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 20:36:07,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:36:07,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953392754] [2022-11-18 20:36:07,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953392754] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:36:07,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:36:07,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:36:07,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651050908] [2022-11-18 20:36:07,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:36:07,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:36:07,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:36:07,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:36:07,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:36:07,682 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 128 [2022-11-18 20:36:07,682 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 20:36:07,682 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:36:07,683 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 128 [2022-11-18 20:36:07,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:36:10,467 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([548] salethreadEXIT-->L750-7: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_16| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_salethreadThread3of3ForFork0_thidvar0_4) InVars {salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} OutVars{salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} AuxVars[] AssignedVars[][172], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 10), 433#(= salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 0), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 425#(and (= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0) (= ~numberOfSeatsSold~0 0)), Black: 134#true, Black: 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), 97#L721-3true, Black: 422#(= ~numberOfSeatsSold~0 0), 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), 420#true, salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-18 20:36:10,467 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:36:10,467 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:36:10,467 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:36:10,468 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:36:11,354 INFO L381 tUnfolder$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| 10), 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 20:36:11,354 INFO L383 tUnfolder$Statistics]: this new event has 116 ancestors and is cut-off event [2022-11-18 20:36:11,354 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-18 20:36:11,354 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-18 20:36:11,355 INFO L386 tUnfolder$Statistics]: existing Event has 116 ancestors and is cut-off event [2022-11-18 20:36:11,482 INFO L130 PetriNetUnfolder]: 7497/33079 cut-off events. [2022-11-18 20:36:11,482 INFO L131 PetriNetUnfolder]: For 16027/21821 co-relation queries the response was YES. [2022-11-18 20:36:11,650 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 20:36:11,751 INFO L137 encePairwiseOnDemand]: 122/128 looper letters, 62 selfloop transitions, 10 changer transitions 0/186 dead transitions. [2022-11-18 20:36:11,751 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 186 transitions, 838 flow [2022-11-18 20:36:11,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:36:11,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:36:11,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 525 transitions. [2022-11-18 20:36:11,755 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8203125 [2022-11-18 20:36:11,756 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 525 transitions. [2022-11-18 20:36:11,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 525 transitions. [2022-11-18 20:36:11,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:36:11,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 525 transitions. [2022-11-18 20:36:11,759 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 20:36:11,760 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 20:36:11,761 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 20:36:11,761 INFO L175 Difference]: Start difference. First operand has 137 places, 148 transitions, 511 flow. Second operand 5 states and 525 transitions. [2022-11-18 20:36:11,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 186 transitions, 838 flow [2022-11-18 20:36:11,800 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 20:36:11,804 INFO L231 Difference]: Finished difference. Result has 143 places, 152 transitions, 574 flow [2022-11-18 20:36:11,805 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 20:36:11,806 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, 20 predicate places. [2022-11-18 20:36:11,807 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 152 transitions, 574 flow [2022-11-18 20:36:11,807 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 20:36:11,807 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:36:11,808 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 20:36:11,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 20:36:11,808 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:36:11,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:11,808 INFO L85 PathProgramCache]: Analyzing trace with hash -871650852, now seen corresponding path program 1 times [2022-11-18 20:36:11,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:11,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227812163] [2022-11-18 20:36:11,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:11,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:11,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:11,826 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:36:11,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:11,857 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:36:11,857 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:36:11,858 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (21 of 22 remaining) [2022-11-18 20:36:11,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2022-11-18 20:36:11,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2022-11-18 20:36:11,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2022-11-18 20:36:11,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2022-11-18 20:36:11,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2022-11-18 20:36:11,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2022-11-18 20:36:11,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2022-11-18 20:36:11,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2022-11-18 20:36:11,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2022-11-18 20:36:11,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 22 remaining) [2022-11-18 20:36:11,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2022-11-18 20:36:11,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2022-11-18 20:36:11,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2022-11-18 20:36:11,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2022-11-18 20:36:11,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2022-11-18 20:36:11,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2022-11-18 20:36:11,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2022-11-18 20:36:11,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2022-11-18 20:36:11,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2022-11-18 20:36:11,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2022-11-18 20:36:11,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2022-11-18 20:36:11,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 20:36:11,863 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:36:11,868 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2022-11-18 20:36:11,869 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:36:11,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:36:11 BasicIcfg [2022-11-18 20:36:11,972 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:36:11,973 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:36:11,973 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:36:11,973 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:36:11,974 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:35:51" (3/4) ... [2022-11-18 20:36:11,976 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:36:11,977 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:36:11,977 INFO L158 Benchmark]: Toolchain (without parser) took 22002.87ms. Allocated memory was 140.5MB in the beginning and 8.1GB in the end (delta: 7.9GB). Free memory was 95.2MB in the beginning and 7.2GB in the end (delta: -7.1GB). Peak memory consumption was 841.0MB. Max. memory is 16.1GB. [2022-11-18 20:36:11,977 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 140.5MB. Free memory is still 113.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:36:11,978 INFO L158 Benchmark]: CACSL2BoogieTranslator took 601.88ms. Allocated memory is still 140.5MB. Free memory was 94.9MB in the beginning and 103.0MB in the end (delta: -8.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:36:11,978 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.83ms. Allocated memory is still 140.5MB. Free memory was 103.0MB in the beginning and 100.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:36:11,978 INFO L158 Benchmark]: Boogie Preprocessor took 28.52ms. Allocated memory is still 140.5MB. Free memory was 100.9MB in the beginning and 99.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:36:11,979 INFO L158 Benchmark]: RCFGBuilder took 542.18ms. Allocated memory is still 140.5MB. Free memory was 99.3MB in the beginning and 82.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-18 20:36:11,979 INFO L158 Benchmark]: TraceAbstraction took 20777.98ms. Allocated memory was 140.5MB in the beginning and 8.1GB in the end (delta: 7.9GB). Free memory was 81.5MB in the beginning and 7.2GB in the end (delta: -7.1GB). Peak memory consumption was 830.4MB. Max. memory is 16.1GB. [2022-11-18 20:36:11,979 INFO L158 Benchmark]: Witness Printer took 3.94ms. Allocated memory is still 8.1GB. Free memory is still 7.2GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:36:11,982 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 140.5MB. Free memory is still 113.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 601.88ms. Allocated memory is still 140.5MB. Free memory was 94.9MB in the beginning and 103.0MB in the end (delta: -8.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.83ms. Allocated memory is still 140.5MB. Free memory was 103.0MB in the beginning and 100.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.52ms. Allocated memory is still 140.5MB. Free memory was 100.9MB in the beginning and 99.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 542.18ms. Allocated memory is still 140.5MB. Free memory was 99.3MB in the beginning and 82.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 20777.98ms. Allocated memory was 140.5MB in the beginning and 8.1GB in the end (delta: 7.9GB). Free memory was 81.5MB in the beginning and 7.2GB in the end (delta: -7.1GB). Peak memory consumption was 830.4MB. Max. memory is 16.1GB. * Witness Printer took 3.94ms. Allocated memory is still 8.1GB. Free memory is still 7.2GB. There was no memory consumed. 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[10]; VAL [\old(argc)=49, argc=49, argv={50:51}, argv={50:51}, numberOfSeatsSold=0, numOfTickets=0, salethreads={3:0}, stopSales=0] [L738] 0 numOfTickets = 10 VAL [\old(argc)=49, argc=49, argv={50:51}, argv={50:51}, numberOfSeatsSold=0, numOfTickets=10, salethreads={3:0}, stopSales=0] [L741] 0 numberOfSeatsSold = 0 VAL [\old(argc)=49, argc=49, argv={50:51}, argv={50:51}, numberOfSeatsSold=0, numOfTickets=10, salethreads={3:0}, stopSales=0] [L744] 0 stopSales = 0 VAL [\old(argc)=49, argc=49, argv={50:51}, argv={50:51}, numberOfSeatsSold=0, numOfTickets=10, salethreads={3:0}, stopSales=0] [L746] 0 int i = 0; VAL [\old(argc)=49, argc=49, argv={50:51}, argv={50:51}, i=0, numberOfSeatsSold=0, numOfTickets=10, salethreads={3:0}, stopSales=0] [L746] COND TRUE 0 i < 10 VAL [\old(argc)=49, argc=49, argv={50:51}, argv={50:51}, i=0, numberOfSeatsSold=0, numOfTickets=10, salethreads={3:0}, stopSales=0] [L747] FCALL, FORK 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(argc)=49, arg={0:0}, argc=49, argv={50:51}, argv={50:51}, i=0, numberOfSeatsSold=0, numOfTickets=10, 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=10, stopSales=0] [L746] 0 i++ VAL [\old(argc)=49, arg={0:0}, arg={0:0}, argc=49, argv={50:51}, argv={50:51}, i=1, numberOfSeatsSold=0, numOfTickets=10, salethreads={3:0}, stopSales=0] [L746] COND TRUE 0 i < 10 VAL [\old(argc)=49, arg={0:0}, arg={0:0}, argc=49, argv={50:51}, argv={50:51}, i=1, numberOfSeatsSold=0, numOfTickets=10, salethreads={3:0}, stopSales=0] [L747] FCALL, FORK 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(argc)=49, arg={0:0}, arg={0:0}, argc=49, argv={50:51}, argv={50:51}, i=1, numberOfSeatsSold=0, numOfTickets=10, 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=10, stopSales=0] [L721] COND TRUE 2 !stopSales VAL [arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=10, stopSales=0] [L721] COND TRUE 1 !stopSales VAL [arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=10, stopSales=0] [L722] 1 int _numberOfSeatsSold = numberOfSeatsSold; VAL [_numberOfSeatsSold=0, arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=10, stopSales=0] [L723] COND FALSE 1 !(_numberOfSeatsSold >= (10 - (((10 / 10) == 0) ? 1 : (10 / 10)))) VAL [_numberOfSeatsSold=0, arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=10, stopSales=0] [L729] 1 numberOfSeatsSold = _numberOfSeatsSold + 1 VAL [_numberOfSeatsSold=0, arg={0:0}, arg={0:0}, numberOfSeatsSold=1, numOfTickets=10, stopSales=0] [L722] 2 int _numberOfSeatsSold = numberOfSeatsSold; VAL [_numberOfSeatsSold=0, arg={0:0}, arg={0:0}, numberOfSeatsSold=1, numOfTickets=10, 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: 1.3s, 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: 2.1s, 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, 0.4s 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: 17.1s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 15.8s, 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, 0.7s 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 20:36:12,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23419f2-1c2c-4eed-aae7-c7b77c4621ff/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