./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 b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-deagle/airline-10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/bin/uautomizer-vX5HgA9Q3a --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-b5237d8 [2022-11-21 13:44:00,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:44:00,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:44:00,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:44:00,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:44:00,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:44:00,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:44:00,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:44:00,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:44:00,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:44:00,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:44:00,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:44:00,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:44:00,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:44:00,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:44:00,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:44:00,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:44:00,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:44:00,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:44:00,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:44:00,878 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:44:00,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:44:00,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:44:00,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:44:00,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:44:00,884 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:44:00,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:44:00,885 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:44:00,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:44:00,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:44:00,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:44:00,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:44:00,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:44:00,889 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:44:00,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:44:00,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:44:00,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:44:00,891 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:44:00,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:44:00,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:44:00,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:44:00,894 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 13:44:00,913 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:44:00,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:44:00,913 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:44:00,914 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:44:00,914 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:44:00,915 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:44:00,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:44:00,922 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:44:00,922 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:44:00,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:44:00,923 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 13:44:00,923 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 13:44:00,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:44:00,924 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 13:44:00,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:44:00,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 13:44:00,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:44:00,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 13:44:00,925 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 13:44:00,925 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 13:44:00,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 13:44:00,926 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:44:00,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 13:44:00,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:44:00,926 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:44:00,927 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:44:00,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:44:00,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:44:00,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:44:00,928 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 13:44:00,928 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:44:00,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 13:44:00,928 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 13:44:00,929 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 13:44:00,929 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 13:44:00,929 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_ac157662-284a-49ab-9836-94efeae178a6/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e894693d2d051395e42cf40effac907db7b5be7a8f5722374b3e5b36cc0228a [2022-11-21 13:44:01,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:44:01,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:44:01,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:44:01,218 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:44:01,219 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:44:01,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-deagle/airline-10.i [2022-11-21 13:44:04,247 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:44:04,529 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:44:04,530 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/sv-benchmarks/c/pthread-deagle/airline-10.i [2022-11-21 13:44:04,543 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/bin/uautomizer-vX5HgA9Q3a/data/ab45dabc0/fa88a581102d4788886a6ca511fc3e89/FLAGda5296aa9 [2022-11-21 13:44:04,843 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/bin/uautomizer-vX5HgA9Q3a/data/ab45dabc0/fa88a581102d4788886a6ca511fc3e89 [2022-11-21 13:44:04,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:44:04,847 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:44:04,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:44:04,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:44:04,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:44:04,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:44:04" (1/1) ... [2022-11-21 13:44:04,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ef823b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:04, skipping insertion in model container [2022-11-21 13:44:04,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:44:04" (1/1) ... [2022-11-21 13:44:04,870 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:44:04,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:44:05,336 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/sv-benchmarks/c/pthread-deagle/airline-10.i[32101,32114] [2022-11-21 13:44:05,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:44:05,348 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:44:05,413 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/sv-benchmarks/c/pthread-deagle/airline-10.i[32101,32114] [2022-11-21 13:44:05,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:44:05,443 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:44:05,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:05 WrapperNode [2022-11-21 13:44:05,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:44:05,445 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:44:05,445 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:44:05,445 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:44:05,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:05" (1/1) ... [2022-11-21 13:44:05,463 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:05" (1/1) ... [2022-11-21 13:44:05,483 INFO L138 Inliner]: procedures = 162, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 80 [2022-11-21 13:44:05,484 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:44:05,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:44:05,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:44:05,485 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:44:05,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:05" (1/1) ... [2022-11-21 13:44:05,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:05" (1/1) ... [2022-11-21 13:44:05,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:05" (1/1) ... [2022-11-21 13:44:05,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:05" (1/1) ... [2022-11-21 13:44:05,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:05" (1/1) ... [2022-11-21 13:44:05,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:05" (1/1) ... [2022-11-21 13:44:05,522 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:05" (1/1) ... [2022-11-21 13:44:05,523 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:05" (1/1) ... [2022-11-21 13:44:05,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:44:05,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:44:05,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:44:05,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:44:05,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:05" (1/1) ... [2022-11-21 13:44:05,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:44:05,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:44:05,560 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:44:05,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:44:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 13:44:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 13:44:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 13:44:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 13:44:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 13:44:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure salethread [2022-11-21 13:44:05,605 INFO L138 BoogieDeclarations]: Found implementation of procedure salethread [2022-11-21 13:44:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 13:44:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 13:44:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 13:44:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:44:05,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:44:05,607 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 13:44:05,725 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:44:05,727 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:44:06,060 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:44:06,113 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:44:06,123 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 13:44:06,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:44:06 BoogieIcfgContainer [2022-11-21 13:44:06,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:44:06,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:44:06,130 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:44:06,133 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:44:06,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:44:04" (1/3) ... [2022-11-21 13:44:06,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@103a70ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:44:06, skipping insertion in model container [2022-11-21 13:44:06,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:05" (2/3) ... [2022-11-21 13:44:06,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@103a70ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:44:06, skipping insertion in model container [2022-11-21 13:44:06,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:44:06" (3/3) ... [2022-11-21 13:44:06,139 INFO L112 eAbstractionObserver]: Analyzing ICFG airline-10.i [2022-11-21 13:44:06,149 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 13:44:06,160 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:44:06,160 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-21 13:44:06,160 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 13:44:06,251 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-21 13:44:06,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 88 transitions, 184 flow [2022-11-21 13:44:06,393 INFO L130 PetriNetUnfolder]: 9/119 cut-off events. [2022-11-21 13:44:06,394 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 13:44:06,400 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. [2022-11-21 13:44:06,401 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 88 transitions, 184 flow [2022-11-21 13:44:06,407 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 88 transitions, 184 flow [2022-11-21 13:44:06,424 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:44:06,431 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;@40f27be6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:44:06,432 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-21 13:44:06,442 INFO L130 PetriNetUnfolder]: 0/20 cut-off events. [2022-11-21 13:44:06,443 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 13:44:06,443 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:44:06,444 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] [2022-11-21 13:44:06,445 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-21 13:44:06,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:06,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1346301244, now seen corresponding path program 1 times [2022-11-21 13:44:06,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:06,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848688323] [2022-11-21 13:44:06,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:06,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:06,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:06,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:06,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:06,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848688323] [2022-11-21 13:44:06,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848688323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:06,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:06,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 13:44:06,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609489819] [2022-11-21 13:44:06,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:06,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 13:44:06,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:06,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 13:44:06,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 13:44:06,790 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 88 [2022-11-21 13:44:06,793 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) [2022-11-21 13:44:06,793 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:44:06,794 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 88 [2022-11-21 13:44:06,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:44:06,885 INFO L130 PetriNetUnfolder]: 3/106 cut-off events. [2022-11-21 13:44:06,885 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-21 13:44:06,886 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. [2022-11-21 13:44:06,888 INFO L137 encePairwiseOnDemand]: 80/88 looper letters, 7 selfloop transitions, 0 changer transitions 0/79 dead transitions. [2022-11-21 13:44:06,888 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 79 transitions, 180 flow [2022-11-21 13:44:06,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 13:44:06,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-21 13:44:06,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 159 transitions. [2022-11-21 13:44:06,902 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9034090909090909 [2022-11-21 13:44:06,903 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 159 transitions. [2022-11-21 13:44:06,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 159 transitions. [2022-11-21 13:44:06,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:44:06,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 159 transitions. [2022-11-21 13:44:06,915 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) [2022-11-21 13:44:06,921 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) [2022-11-21 13:44:06,922 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) [2022-11-21 13:44:06,923 INFO L175 Difference]: Start difference. First operand has 85 places, 88 transitions, 184 flow. Second operand 2 states and 159 transitions. [2022-11-21 13:44:06,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 79 transitions, 180 flow [2022-11-21 13:44:06,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 79 transitions, 180 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 13:44:06,935 INFO L231 Difference]: Finished difference. Result has 80 places, 79 transitions, 166 flow [2022-11-21 13:44:06,937 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} [2022-11-21 13:44:06,942 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, -5 predicate places. [2022-11-21 13:44:06,942 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 79 transitions, 166 flow [2022-11-21 13:44:06,942 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) [2022-11-21 13:44:06,943 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:44:06,943 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] [2022-11-21 13:44:06,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 13:44:06,943 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-21 13:44:06,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:06,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1828019146, now seen corresponding path program 1 times [2022-11-21 13:44:06,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:06,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848554063] [2022-11-21 13:44:06,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:06,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:07,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:07,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:07,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848554063] [2022-11-21 13:44:07,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848554063] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:07,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:07,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 13:44:07,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836404425] [2022-11-21 13:44:07,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:07,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:44:07,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:07,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:44:07,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:44:07,055 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 88 [2022-11-21 13:44:07,056 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) [2022-11-21 13:44:07,056 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:44:07,056 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 88 [2022-11-21 13:44:07,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:44:07,119 INFO L130 PetriNetUnfolder]: 12/148 cut-off events. [2022-11-21 13:44:07,119 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-21 13:44:07,120 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. [2022-11-21 13:44:07,120 INFO L137 encePairwiseOnDemand]: 85/88 looper letters, 16 selfloop transitions, 2 changer transitions 0/83 dead transitions. [2022-11-21 13:44:07,121 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 83 transitions, 210 flow [2022-11-21 13:44:07,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:44:07,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:44:07,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2022-11-21 13:44:07,123 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8106060606060606 [2022-11-21 13:44:07,123 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 214 transitions. [2022-11-21 13:44:07,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 214 transitions. [2022-11-21 13:44:07,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:44:07,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 214 transitions. [2022-11-21 13:44:07,125 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) [2022-11-21 13:44:07,126 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) [2022-11-21 13:44:07,127 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) [2022-11-21 13:44:07,127 INFO L175 Difference]: Start difference. First operand has 80 places, 79 transitions, 166 flow. Second operand 3 states and 214 transitions. [2022-11-21 13:44:07,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 83 transitions, 210 flow [2022-11-21 13:44:07,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 83 transitions, 210 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 13:44:07,130 INFO L231 Difference]: Finished difference. Result has 83 places, 79 transitions, 174 flow [2022-11-21 13:44:07,130 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} [2022-11-21 13:44:07,131 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, -2 predicate places. [2022-11-21 13:44:07,131 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 79 transitions, 174 flow [2022-11-21 13:44:07,132 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) [2022-11-21 13:44:07,132 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:44:07,132 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] [2022-11-21 13:44:07,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 13:44:07,133 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-21 13:44:07,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:07,133 INFO L85 PathProgramCache]: Analyzing trace with hash -311906661, now seen corresponding path program 1 times [2022-11-21 13:44:07,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:07,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857986716] [2022-11-21 13:44:07,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:07,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:07,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:07,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:07,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857986716] [2022-11-21 13:44:07,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857986716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:07,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:07,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:44:07,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170264695] [2022-11-21 13:44:07,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:07,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:44:07,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:07,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:44:07,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:44:07,201 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 88 [2022-11-21 13:44:07,201 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) [2022-11-21 13:44:07,201 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:44:07,201 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 88 [2022-11-21 13:44:07,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:44:07,255 INFO L130 PetriNetUnfolder]: 1/131 cut-off events. [2022-11-21 13:44:07,255 INFO L131 PetriNetUnfolder]: For 8/14 co-relation queries the response was YES. [2022-11-21 13:44:07,256 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. [2022-11-21 13:44:07,256 INFO L137 encePairwiseOnDemand]: 85/88 looper letters, 8 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2022-11-21 13:44:07,257 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 79 transitions, 197 flow [2022-11-21 13:44:07,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:44:07,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:44:07,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2022-11-21 13:44:07,270 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8257575757575758 [2022-11-21 13:44:07,270 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 218 transitions. [2022-11-21 13:44:07,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 218 transitions. [2022-11-21 13:44:07,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:44:07,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 218 transitions. [2022-11-21 13:44:07,271 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) [2022-11-21 13:44:07,273 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) [2022-11-21 13:44:07,273 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) [2022-11-21 13:44:07,273 INFO L175 Difference]: Start difference. First operand has 83 places, 79 transitions, 174 flow. Second operand 3 states and 218 transitions. [2022-11-21 13:44:07,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 79 transitions, 197 flow [2022-11-21 13:44:07,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 79 transitions, 193 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 13:44:07,276 INFO L231 Difference]: Finished difference. Result has 82 places, 78 transitions, 172 flow [2022-11-21 13:44:07,276 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} [2022-11-21 13:44:07,277 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, -3 predicate places. [2022-11-21 13:44:07,277 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 78 transitions, 172 flow [2022-11-21 13:44:07,277 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) [2022-11-21 13:44:07,277 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:44:07,278 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] [2022-11-21 13:44:07,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 13:44:07,278 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-21 13:44:07,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:07,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1996792538, now seen corresponding path program 1 times [2022-11-21 13:44:07,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:07,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242719412] [2022-11-21 13:44:07,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:07,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:07,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:07,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:07,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242719412] [2022-11-21 13:44:07,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242719412] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:07,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:07,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:44:07,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688484983] [2022-11-21 13:44:07,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:07,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:44:07,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:07,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:44:07,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:44:07,383 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 88 [2022-11-21 13:44:07,384 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) [2022-11-21 13:44:07,386 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:44:07,386 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 88 [2022-11-21 13:44:07,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:44:07,471 INFO L130 PetriNetUnfolder]: 7/188 cut-off events. [2022-11-21 13:44:07,471 INFO L131 PetriNetUnfolder]: For 10/16 co-relation queries the response was YES. [2022-11-21 13:44:07,472 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. [2022-11-21 13:44:07,472 INFO L137 encePairwiseOnDemand]: 82/88 looper letters, 11 selfloop transitions, 3 changer transitions 11/81 dead transitions. [2022-11-21 13:44:07,473 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 81 transitions, 213 flow [2022-11-21 13:44:07,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:44:07,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:44:07,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 216 transitions. [2022-11-21 13:44:07,474 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8181818181818182 [2022-11-21 13:44:07,474 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 216 transitions. [2022-11-21 13:44:07,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 216 transitions. [2022-11-21 13:44:07,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:44:07,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 216 transitions. [2022-11-21 13:44:07,476 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) [2022-11-21 13:44:07,477 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) [2022-11-21 13:44:07,477 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) [2022-11-21 13:44:07,477 INFO L175 Difference]: Start difference. First operand has 82 places, 78 transitions, 172 flow. Second operand 3 states and 216 transitions. [2022-11-21 13:44:07,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 81 transitions, 213 flow [2022-11-21 13:44:07,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 81 transitions, 209 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 13:44:07,480 INFO L231 Difference]: Finished difference. Result has 83 places, 69 transitions, 168 flow [2022-11-21 13:44:07,481 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} [2022-11-21 13:44:07,481 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, -2 predicate places. [2022-11-21 13:44:07,481 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 69 transitions, 168 flow [2022-11-21 13:44:07,482 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) [2022-11-21 13:44:07,482 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:44:07,482 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] [2022-11-21 13:44:07,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 13:44:07,483 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-21 13:44:07,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:07,483 INFO L85 PathProgramCache]: Analyzing trace with hash 476877077, now seen corresponding path program 1 times [2022-11-21 13:44:07,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:07,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513879171] [2022-11-21 13:44:07,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:07,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:07,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:44:07,505 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:44:07,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:44:07,539 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:44:07,539 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 13:44:07,540 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 14 remaining) [2022-11-21 13:44:07,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2022-11-21 13:44:07,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2022-11-21 13:44:07,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2022-11-21 13:44:07,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2022-11-21 13:44:07,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2022-11-21 13:44:07,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2022-11-21 13:44:07,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2022-11-21 13:44:07,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2022-11-21 13:44:07,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2022-11-21 13:44:07,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2022-11-21 13:44:07,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2022-11-21 13:44:07,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2022-11-21 13:44:07,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2022-11-21 13:44:07,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 13:44:07,546 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-21 13:44:07,549 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-21 13:44:07,549 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-21 13:44:07,569 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-21 13:44:07,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 108 transitions, 234 flow [2022-11-21 13:44:07,598 INFO L130 PetriNetUnfolder]: 18/209 cut-off events. [2022-11-21 13:44:07,598 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-21 13:44:07,600 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. [2022-11-21 13:44:07,600 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 108 transitions, 234 flow [2022-11-21 13:44:07,602 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 108 transitions, 234 flow [2022-11-21 13:44:07,603 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:44:07,604 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;@40f27be6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:44:07,604 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-21 13:44:07,607 INFO L130 PetriNetUnfolder]: 0/20 cut-off events. [2022-11-21 13:44:07,607 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 13:44:07,607 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:44:07,607 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] [2022-11-21 13:44:07,607 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-21 13:44:07,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:07,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1695734104, now seen corresponding path program 1 times [2022-11-21 13:44:07,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:07,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953698136] [2022-11-21 13:44:07,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:07,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:07,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:07,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:07,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953698136] [2022-11-21 13:44:07,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953698136] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:07,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:07,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 13:44:07,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739853177] [2022-11-21 13:44:07,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:07,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 13:44:07,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:07,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 13:44:07,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 13:44:07,629 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 108 [2022-11-21 13:44:07,629 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) [2022-11-21 13:44:07,629 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:44:07,629 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 108 [2022-11-21 13:44:07,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:44:07,712 INFO L130 PetriNetUnfolder]: 16/208 cut-off events. [2022-11-21 13:44:07,713 INFO L131 PetriNetUnfolder]: For 36/41 co-relation queries the response was YES. [2022-11-21 13:44:07,715 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 637 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. [2022-11-21 13:44:07,716 INFO L137 encePairwiseOnDemand]: 98/108 looper letters, 11 selfloop transitions, 0 changer transitions 0/97 dead transitions. [2022-11-21 13:44:07,716 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 97 transitions, 234 flow [2022-11-21 13:44:07,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 13:44:07,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-21 13:44:07,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 193 transitions. [2022-11-21 13:44:07,718 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8935185185185185 [2022-11-21 13:44:07,718 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 193 transitions. [2022-11-21 13:44:07,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 193 transitions. [2022-11-21 13:44:07,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:44:07,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 193 transitions. [2022-11-21 13:44:07,720 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) [2022-11-21 13:44:07,721 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) [2022-11-21 13:44:07,732 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) [2022-11-21 13:44:07,732 INFO L175 Difference]: Start difference. First operand has 104 places, 108 transitions, 234 flow. Second operand 2 states and 193 transitions. [2022-11-21 13:44:07,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 97 transitions, 234 flow [2022-11-21 13:44:07,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 97 transitions, 234 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 13:44:07,737 INFO L231 Difference]: Finished difference. Result has 97 places, 97 transitions, 212 flow [2022-11-21 13:44:07,737 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} [2022-11-21 13:44:07,741 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, -7 predicate places. [2022-11-21 13:44:07,741 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 97 transitions, 212 flow [2022-11-21 13:44:07,742 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) [2022-11-21 13:44:07,742 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:44:07,742 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] [2022-11-21 13:44:07,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 13:44:07,743 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-21 13:44:07,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:07,744 INFO L85 PathProgramCache]: Analyzing trace with hash -708223178, now seen corresponding path program 1 times [2022-11-21 13:44:07,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:07,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281501386] [2022-11-21 13:44:07,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:07,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:07,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:07,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:07,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281501386] [2022-11-21 13:44:07,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281501386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:07,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:07,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 13:44:07,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203685064] [2022-11-21 13:44:07,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:07,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:44:07,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:07,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:44:07,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:44:07,823 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 108 [2022-11-21 13:44:07,823 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) [2022-11-21 13:44:07,823 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:44:07,824 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 108 [2022-11-21 13:44:07,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:44:07,916 INFO L130 PetriNetUnfolder]: 68/423 cut-off events. [2022-11-21 13:44:07,916 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-11-21 13:44:07,917 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 2046 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. [2022-11-21 13:44:07,920 INFO L137 encePairwiseOnDemand]: 105/108 looper letters, 22 selfloop transitions, 2 changer transitions 0/103 dead transitions. [2022-11-21 13:44:07,920 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 103 transitions, 272 flow [2022-11-21 13:44:07,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:44:07,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:44:07,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2022-11-21 13:44:07,921 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.808641975308642 [2022-11-21 13:44:07,922 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 262 transitions. [2022-11-21 13:44:07,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 262 transitions. [2022-11-21 13:44:07,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:44:07,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 262 transitions. [2022-11-21 13:44:07,923 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) [2022-11-21 13:44:07,924 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) [2022-11-21 13:44:07,925 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) [2022-11-21 13:44:07,925 INFO L175 Difference]: Start difference. First operand has 97 places, 97 transitions, 212 flow. Second operand 3 states and 262 transitions. [2022-11-21 13:44:07,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 103 transitions, 272 flow [2022-11-21 13:44:07,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 103 transitions, 272 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 13:44:07,928 INFO L231 Difference]: Finished difference. Result has 100 places, 98 transitions, 224 flow [2022-11-21 13:44:07,928 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} [2022-11-21 13:44:07,929 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, -4 predicate places. [2022-11-21 13:44:07,929 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 98 transitions, 224 flow [2022-11-21 13:44:07,929 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) [2022-11-21 13:44:07,930 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:44:07,930 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] [2022-11-21 13:44:07,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 13:44:07,930 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-21 13:44:07,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:07,931 INFO L85 PathProgramCache]: Analyzing trace with hash -441666231, now seen corresponding path program 1 times [2022-11-21 13:44:07,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:07,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905965505] [2022-11-21 13:44:07,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:07,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:07,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:07,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:07,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:07,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905965505] [2022-11-21 13:44:07,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905965505] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:07,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:07,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:44:07,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90912210] [2022-11-21 13:44:07,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:07,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:44:07,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:07,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:44:07,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:44:07,964 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 108 [2022-11-21 13:44:07,964 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) [2022-11-21 13:44:07,965 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:44:07,965 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 108 [2022-11-21 13:44:07,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:44:08,083 INFO L130 PetriNetUnfolder]: 52/631 cut-off events. [2022-11-21 13:44:08,083 INFO L131 PetriNetUnfolder]: For 111/313 co-relation queries the response was YES. [2022-11-21 13:44:08,086 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 3968 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. [2022-11-21 13:44:08,088 INFO L137 encePairwiseOnDemand]: 100/108 looper letters, 22 selfloop transitions, 6 changer transitions 0/109 dead transitions. [2022-11-21 13:44:08,088 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 109 transitions, 313 flow [2022-11-21 13:44:08,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:44:08,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:44:08,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 270 transitions. [2022-11-21 13:44:08,090 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2022-11-21 13:44:08,090 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 270 transitions. [2022-11-21 13:44:08,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 270 transitions. [2022-11-21 13:44:08,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:44:08,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 270 transitions. [2022-11-21 13:44:08,092 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) [2022-11-21 13:44:08,093 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) [2022-11-21 13:44:08,093 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) [2022-11-21 13:44:08,093 INFO L175 Difference]: Start difference. First operand has 100 places, 98 transitions, 224 flow. Second operand 3 states and 270 transitions. [2022-11-21 13:44:08,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 109 transitions, 313 flow [2022-11-21 13:44:08,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 109 transitions, 311 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 13:44:08,097 INFO L231 Difference]: Finished difference. Result has 103 places, 104 transitions, 274 flow [2022-11-21 13:44:08,097 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} [2022-11-21 13:44:08,098 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, -1 predicate places. [2022-11-21 13:44:08,098 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 104 transitions, 274 flow [2022-11-21 13:44:08,098 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) [2022-11-21 13:44:08,098 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:44:08,099 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] [2022-11-21 13:44:08,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 13:44:08,099 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-21 13:44:08,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:08,100 INFO L85 PathProgramCache]: Analyzing trace with hash 2101498532, now seen corresponding path program 1 times [2022-11-21 13:44:08,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:08,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216809650] [2022-11-21 13:44:08,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:08,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:08,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:08,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:08,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216809650] [2022-11-21 13:44:08,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216809650] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:08,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:08,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:44:08,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644462644] [2022-11-21 13:44:08,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:08,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:44:08,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:08,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:44:08,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:44:08,132 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 108 [2022-11-21 13:44:08,132 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) [2022-11-21 13:44:08,132 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:44:08,132 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 108 [2022-11-21 13:44:08,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:44:08,392 INFO L130 PetriNetUnfolder]: 266/1644 cut-off events. [2022-11-21 13:44:08,392 INFO L131 PetriNetUnfolder]: For 362/767 co-relation queries the response was YES. [2022-11-21 13:44:08,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2418 conditions, 1644 events. 266/1644 cut-off events. For 362/767 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 13861 event pairs, 91 based on Foata normal form. 1/1398 useless extension candidates. Maximal degree in co-relation 2410. Up to 383 conditions per place. [2022-11-21 13:44:08,402 INFO L137 encePairwiseOnDemand]: 97/108 looper letters, 27 selfloop transitions, 8 changer transitions 0/117 dead transitions. [2022-11-21 13:44:08,402 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 117 transitions, 389 flow [2022-11-21 13:44:08,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:44:08,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:44:08,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 267 transitions. [2022-11-21 13:44:08,404 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8240740740740741 [2022-11-21 13:44:08,404 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 267 transitions. [2022-11-21 13:44:08,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 267 transitions. [2022-11-21 13:44:08,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:44:08,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 267 transitions. [2022-11-21 13:44:08,405 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) [2022-11-21 13:44:08,406 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) [2022-11-21 13:44:08,406 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) [2022-11-21 13:44:08,407 INFO L175 Difference]: Start difference. First operand has 103 places, 104 transitions, 274 flow. Second operand 3 states and 267 transitions. [2022-11-21 13:44:08,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 117 transitions, 389 flow [2022-11-21 13:44:08,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 117 transitions, 373 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 13:44:08,411 INFO L231 Difference]: Finished difference. Result has 105 places, 112 transitions, 332 flow [2022-11-21 13:44:08,411 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} [2022-11-21 13:44:08,412 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, 1 predicate places. [2022-11-21 13:44:08,412 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 112 transitions, 332 flow [2022-11-21 13:44:08,413 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) [2022-11-21 13:44:08,413 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:44:08,413 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] [2022-11-21 13:44:08,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 13:44:08,413 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-21 13:44:08,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:08,414 INFO L85 PathProgramCache]: Analyzing trace with hash 210032464, now seen corresponding path program 1 times [2022-11-21 13:44:08,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:08,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303984340] [2022-11-21 13:44:08,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:08,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:08,491 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:08,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:08,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303984340] [2022-11-21 13:44:08,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303984340] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:44:08,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864323883] [2022-11-21 13:44:08,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:08,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:44:08,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:44:08,496 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:44:08,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 13:44:08,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:08,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 13:44:08,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:44:08,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:08,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:44:08,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:08,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864323883] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:44:08,715 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 13:44:08,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-21 13:44:08,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901605095] [2022-11-21 13:44:08,716 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 13:44:08,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 13:44:08,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:08,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 13:44:08,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-21 13:44:08,719 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 108 [2022-11-21 13:44:08,720 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) [2022-11-21 13:44:08,720 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:44:08,720 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 108 [2022-11-21 13:44:08,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:44:08,913 INFO L130 PetriNetUnfolder]: 196/645 cut-off events. [2022-11-21 13:44:08,913 INFO L131 PetriNetUnfolder]: For 427/570 co-relation queries the response was YES. [2022-11-21 13:44:08,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1418 conditions, 645 events. 196/645 cut-off events. For 427/570 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 4575 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. [2022-11-21 13:44:08,929 INFO L137 encePairwiseOnDemand]: 103/108 looper letters, 50 selfloop transitions, 7 changer transitions 0/117 dead transitions. [2022-11-21 13:44:08,929 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 117 transitions, 512 flow [2022-11-21 13:44:08,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 13:44:08,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-21 13:44:08,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 745 transitions. [2022-11-21 13:44:08,932 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7664609053497943 [2022-11-21 13:44:08,932 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 745 transitions. [2022-11-21 13:44:08,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 745 transitions. [2022-11-21 13:44:08,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:44:08,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 745 transitions. [2022-11-21 13:44:08,934 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) [2022-11-21 13:44:08,936 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) [2022-11-21 13:44:08,937 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) [2022-11-21 13:44:08,937 INFO L175 Difference]: Start difference. First operand has 105 places, 112 transitions, 332 flow. Second operand 9 states and 745 transitions. [2022-11-21 13:44:08,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 117 transitions, 512 flow [2022-11-21 13:44:08,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 117 transitions, 480 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-11-21 13:44:08,944 INFO L231 Difference]: Finished difference. Result has 84 places, 83 transitions, 252 flow [2022-11-21 13:44:08,944 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} [2022-11-21 13:44:08,945 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, -20 predicate places. [2022-11-21 13:44:08,945 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 83 transitions, 252 flow [2022-11-21 13:44:08,946 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) [2022-11-21 13:44:08,946 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:44:08,946 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] [2022-11-21 13:44:08,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 13:44:09,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-21 13:44:09,152 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-21 13:44:09,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:09,152 INFO L85 PathProgramCache]: Analyzing trace with hash 616978764, now seen corresponding path program 1 times [2022-11-21 13:44:09,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:09,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852593144] [2022-11-21 13:44:09,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:09,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:09,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:44:09,167 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:44:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:44:09,197 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:44:09,198 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 13:44:09,198 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2022-11-21 13:44:09,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2022-11-21 13:44:09,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2022-11-21 13:44:09,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2022-11-21 13:44:09,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2022-11-21 13:44:09,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2022-11-21 13:44:09,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2022-11-21 13:44:09,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2022-11-21 13:44:09,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2022-11-21 13:44:09,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2022-11-21 13:44:09,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2022-11-21 13:44:09,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2022-11-21 13:44:09,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2022-11-21 13:44:09,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2022-11-21 13:44:09,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2022-11-21 13:44:09,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2022-11-21 13:44:09,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2022-11-21 13:44:09,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2022-11-21 13:44:09,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 13:44:09,203 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-21 13:44:09,204 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-21 13:44:09,204 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-21 13:44:09,232 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-21 13:44:09,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 128 transitions, 286 flow [2022-11-21 13:44:09,277 INFO L130 PetriNetUnfolder]: 34/360 cut-off events. [2022-11-21 13:44:09,277 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-21 13:44:09,279 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 1100 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. [2022-11-21 13:44:09,280 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 128 transitions, 286 flow [2022-11-21 13:44:09,285 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 128 transitions, 286 flow [2022-11-21 13:44:09,287 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:44:09,289 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;@40f27be6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:44:09,289 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-11-21 13:44:09,291 INFO L130 PetriNetUnfolder]: 0/20 cut-off events. [2022-11-21 13:44:09,291 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 13:44:09,292 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:44:09,292 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] [2022-11-21 13:44:09,292 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-21 13:44:09,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:09,293 INFO L85 PathProgramCache]: Analyzing trace with hash -369850584, now seen corresponding path program 1 times [2022-11-21 13:44:09,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:09,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544200447] [2022-11-21 13:44:09,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:09,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:09,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:09,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:09,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:09,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544200447] [2022-11-21 13:44:09,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544200447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:09,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:09,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 13:44:09,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038001528] [2022-11-21 13:44:09,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:09,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 13:44:09,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:09,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 13:44:09,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 13:44:09,313 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 128 [2022-11-21 13:44:09,313 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) [2022-11-21 13:44:09,313 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:44:09,313 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 128 [2022-11-21 13:44:09,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:44:09,398 INFO L130 PetriNetUnfolder]: 84/453 cut-off events. [2022-11-21 13:44:09,399 INFO L131 PetriNetUnfolder]: For 191/217 co-relation queries the response was YES. [2022-11-21 13:44:09,401 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 1934 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. [2022-11-21 13:44:09,404 INFO L137 encePairwiseOnDemand]: 116/128 looper letters, 15 selfloop transitions, 0 changer transitions 0/115 dead transitions. [2022-11-21 13:44:09,404 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 115 transitions, 290 flow [2022-11-21 13:44:09,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 13:44:09,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-21 13:44:09,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 227 transitions. [2022-11-21 13:44:09,406 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.88671875 [2022-11-21 13:44:09,406 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 227 transitions. [2022-11-21 13:44:09,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 227 transitions. [2022-11-21 13:44:09,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:44:09,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 227 transitions. [2022-11-21 13:44:09,407 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) [2022-11-21 13:44:09,408 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) [2022-11-21 13:44:09,410 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) [2022-11-21 13:44:09,410 INFO L175 Difference]: Start difference. First operand has 123 places, 128 transitions, 286 flow. Second operand 2 states and 227 transitions. [2022-11-21 13:44:09,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 115 transitions, 290 flow [2022-11-21 13:44:09,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 115 transitions, 290 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 13:44:09,413 INFO L231 Difference]: Finished difference. Result has 114 places, 115 transitions, 260 flow [2022-11-21 13:44:09,414 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} [2022-11-21 13:44:09,415 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, -9 predicate places. [2022-11-21 13:44:09,415 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 115 transitions, 260 flow [2022-11-21 13:44:09,416 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) [2022-11-21 13:44:09,416 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:44:09,416 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] [2022-11-21 13:44:09,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 13:44:09,416 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-21 13:44:09,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:09,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1058045878, now seen corresponding path program 1 times [2022-11-21 13:44:09,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:09,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598126619] [2022-11-21 13:44:09,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:09,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:09,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:09,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:09,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598126619] [2022-11-21 13:44:09,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598126619] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:09,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:09,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 13:44:09,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842327932] [2022-11-21 13:44:09,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:09,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:44:09,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:09,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:44:09,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:44:09,465 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 128 [2022-11-21 13:44:09,466 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) [2022-11-21 13:44:09,466 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:44:09,466 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 128 [2022-11-21 13:44:09,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:44:09,680 INFO L130 PetriNetUnfolder]: 258/1209 cut-off events. [2022-11-21 13:44:09,681 INFO L131 PetriNetUnfolder]: For 200/200 co-relation queries the response was YES. [2022-11-21 13:44:09,685 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 7790 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. [2022-11-21 13:44:09,692 INFO L137 encePairwiseOnDemand]: 125/128 looper letters, 26 selfloop transitions, 2 changer transitions 0/121 dead transitions. [2022-11-21 13:44:09,692 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 121 transitions, 328 flow [2022-11-21 13:44:09,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:44:09,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:44:09,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 308 transitions. [2022-11-21 13:44:09,693 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8020833333333334 [2022-11-21 13:44:09,694 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 308 transitions. [2022-11-21 13:44:09,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 308 transitions. [2022-11-21 13:44:09,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:44:09,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 308 transitions. [2022-11-21 13:44:09,695 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) [2022-11-21 13:44:09,696 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) [2022-11-21 13:44:09,696 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) [2022-11-21 13:44:09,696 INFO L175 Difference]: Start difference. First operand has 114 places, 115 transitions, 260 flow. Second operand 3 states and 308 transitions. [2022-11-21 13:44:09,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 121 transitions, 328 flow [2022-11-21 13:44:09,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 121 transitions, 328 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 13:44:09,700 INFO L231 Difference]: Finished difference. Result has 117 places, 116 transitions, 272 flow [2022-11-21 13:44:09,700 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} [2022-11-21 13:44:09,701 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, -6 predicate places. [2022-11-21 13:44:09,701 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 116 transitions, 272 flow [2022-11-21 13:44:09,701 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) [2022-11-21 13:44:09,701 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:44:09,702 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] [2022-11-21 13:44:09,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 13:44:09,702 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-21 13:44:09,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:09,702 INFO L85 PathProgramCache]: Analyzing trace with hash 836136859, now seen corresponding path program 1 times [2022-11-21 13:44:09,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:09,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677543266] [2022-11-21 13:44:09,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:09,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:09,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:09,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:09,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:09,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677543266] [2022-11-21 13:44:09,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677543266] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:09,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:09,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:44:09,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773264201] [2022-11-21 13:44:09,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:09,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:44:09,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:09,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:44:09,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:44:09,738 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 128 [2022-11-21 13:44:09,738 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) [2022-11-21 13:44:09,738 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:44:09,739 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 128 [2022-11-21 13:44:09,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:44:10,327 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), Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 32#L750-7true, salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, 103#L721-2true, 129#true, salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-21 13:44:10,327 INFO L383 tUnfolder$Statistics]: this new event has 96 ancestors and is cut-off event [2022-11-21 13:44:10,327 INFO L386 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-11-21 13:44:10,328 INFO L386 tUnfolder$Statistics]: existing Event has 63 ancestors and is cut-off event [2022-11-21 13:44:10,328 INFO L386 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-11-21 13:44:10,328 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][82], [Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 32#L750-7true, salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, 134#true, 129#true, salethreadThread3of3ForFork0NotInUse, 97#L721-3true, 126#true]) [2022-11-21 13:44:10,328 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-21 13:44:10,328 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-21 13:44:10,328 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-21 13:44:10,328 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-21 13:44:10,329 INFO L381 tUnfolder$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], [Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 32#L750-7true, salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, 134#true, 129#true, salethreadThread3of3ForFork0NotInUse, 87#L721-3true, 126#true]) [2022-11-21 13:44:10,329 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-21 13:44:10,329 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-21 13:44:10,329 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-21 13:44:10,329 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-21 13:44:10,369 INFO L130 PetriNetUnfolder]: 654/3901 cut-off events. [2022-11-21 13:44:10,370 INFO L131 PetriNetUnfolder]: For 1338/3693 co-relation queries the response was YES. [2022-11-21 13:44:10,386 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 39386 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. [2022-11-21 13:44:10,407 INFO L137 encePairwiseOnDemand]: 116/128 looper letters, 32 selfloop transitions, 9 changer transitions 0/133 dead transitions. [2022-11-21 13:44:10,407 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 133 transitions, 409 flow [2022-11-21 13:44:10,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:44:10,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:44:10,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 317 transitions. [2022-11-21 13:44:10,409 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8255208333333334 [2022-11-21 13:44:10,409 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 317 transitions. [2022-11-21 13:44:10,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 317 transitions. [2022-11-21 13:44:10,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:44:10,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 317 transitions. [2022-11-21 13:44:10,411 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) [2022-11-21 13:44:10,412 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) [2022-11-21 13:44:10,412 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) [2022-11-21 13:44:10,412 INFO L175 Difference]: Start difference. First operand has 117 places, 116 transitions, 272 flow. Second operand 3 states and 317 transitions. [2022-11-21 13:44:10,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 133 transitions, 409 flow [2022-11-21 13:44:10,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 133 transitions, 407 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 13:44:10,416 INFO L231 Difference]: Finished difference. Result has 120 places, 125 transitions, 348 flow [2022-11-21 13:44:10,416 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} [2022-11-21 13:44:10,417 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, -3 predicate places. [2022-11-21 13:44:10,417 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 125 transitions, 348 flow [2022-11-21 13:44:10,417 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) [2022-11-21 13:44:10,417 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:44:10,417 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] [2022-11-21 13:44:10,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 13:44:10,418 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-21 13:44:10,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:10,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1456596170, now seen corresponding path program 1 times [2022-11-21 13:44:10,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:10,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502463033] [2022-11-21 13:44:10,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:10,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:10,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:10,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:10,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502463033] [2022-11-21 13:44:10,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502463033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:10,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:10,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:44:10,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247696580] [2022-11-21 13:44:10,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:10,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:44:10,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:10,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:44:10,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:44:10,454 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 128 [2022-11-21 13:44:10,455 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) [2022-11-21 13:44:10,455 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:44:10,455 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 128 [2022-11-21 13:44:10,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:44:11,918 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][81], [136#(= |#race~stopSales~0| 0), 65#salethreadENTRYtrue, 140#true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 32#L750-7true, salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, salethreadThread3of3ForFork0NotInUse, Black: 134#true, 126#true]) [2022-11-21 13:44:11,919 INFO L383 tUnfolder$Statistics]: this new event has 88 ancestors and is cut-off event [2022-11-21 13:44:11,919 INFO L386 tUnfolder$Statistics]: existing Event has 60 ancestors and is cut-off event [2022-11-21 13:44:11,919 INFO L386 tUnfolder$Statistics]: existing Event has 65 ancestors and is cut-off event [2022-11-21 13:44:11,919 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-21 13:44:12,118 INFO L381 tUnfolder$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), Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 32#L750-7true, 41#L722-1true, salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, Black: 134#true, salethreadThread3of3ForFork0NotInUse, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-21 13:44:12,118 INFO L383 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-11-21 13:44:12,118 INFO L386 tUnfolder$Statistics]: existing Event has 65 ancestors and is cut-off event [2022-11-21 13:44:12,119 INFO L386 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-11-21 13:44:12,119 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-11-21 13:44:12,119 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([547] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread2of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_14| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))))) InVars {salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} OutVars{salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} AuxVars[] AssignedVars[][118], [136#(= |#race~stopSales~0| 0), Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 32#L750-7true, 88#L722-2true, salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, Black: 134#true, salethreadThread3of3ForFork0NotInUse, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-21 13:44:12,119 INFO L383 tUnfolder$Statistics]: this new event has 94 ancestors and is cut-off event [2022-11-21 13:44:12,120 INFO L386 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-11-21 13:44:12,120 INFO L386 tUnfolder$Statistics]: existing Event has 99 ancestors and is cut-off event [2022-11-21 13:44:12,120 INFO L386 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-11-21 13:44:12,152 INFO L381 tUnfolder$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], [Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 32#L750-7true, salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, 134#true, Black: 136#(= |#race~stopSales~0| 0), salethreadThread3of3ForFork0NotInUse, 126#true, 87#L721-3true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-21 13:44:12,152 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-21 13:44:12,153 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-21 13:44:12,153 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-21 13:44:12,153 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-21 13:44:12,322 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][82], [Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 32#L750-7true, salethreadThread1of3ForFork0NotInUse, 134#true, Black: 136#(= |#race~stopSales~0| 0), salethreadThread2of3ForFork0InUse, salethreadThread3of3ForFork0NotInUse, 97#L721-3true, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-21 13:44:12,323 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-21 13:44:12,323 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-21 13:44:12,323 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-21 13:44:12,323 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-21 13:44:12,470 INFO L381 tUnfolder$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), Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 32#L750-7true, salethreadThread1of3ForFork0NotInUse, 102#L722-2true, salethreadThread2of3ForFork0InUse, salethreadThread3of3ForFork0NotInUse, Black: 134#true, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-21 13:44:12,470 INFO L383 tUnfolder$Statistics]: this new event has 99 ancestors and is cut-off event [2022-11-21 13:44:12,470 INFO L386 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2022-11-21 13:44:12,470 INFO L386 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-11-21 13:44:12,471 INFO L386 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-11-21 13:44:12,486 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][82], [136#(= |#race~stopSales~0| 0), Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 32#L750-7true, salethreadThread1of3ForFork0NotInUse, 102#L722-2true, salethreadThread2of3ForFork0InUse, Black: 134#true, salethreadThread3of3ForFork0NotInUse, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-21 13:44:12,487 INFO L383 tUnfolder$Statistics]: this new event has 99 ancestors and is cut-off event [2022-11-21 13:44:12,487 INFO L386 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2022-11-21 13:44:12,487 INFO L386 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-11-21 13:44:12,487 INFO L386 tUnfolder$Statistics]: existing Event has 99 ancestors and is cut-off event [2022-11-21 13:44:12,487 INFO L386 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-11-21 13:44:12,488 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][82], [136#(= |#race~stopSales~0| 0), 106#L722-1true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 32#L750-7true, salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, Black: 134#true, salethreadThread3of3ForFork0NotInUse, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-21 13:44:12,488 INFO L383 tUnfolder$Statistics]: this new event has 98 ancestors and is cut-off event [2022-11-21 13:44:12,488 INFO L386 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-11-21 13:44:12,488 INFO L386 tUnfolder$Statistics]: existing Event has 65 ancestors and is cut-off event [2022-11-21 13:44:12,488 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-21 13:44:12,839 INFO L130 PetriNetUnfolder]: 4573/16387 cut-off events. [2022-11-21 13:44:12,839 INFO L131 PetriNetUnfolder]: For 6386/11701 co-relation queries the response was YES. [2022-11-21 13:44:12,902 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 201732 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. [2022-11-21 13:44:12,970 INFO L137 encePairwiseOnDemand]: 113/128 looper letters, 41 selfloop transitions, 11 changer transitions 0/147 dead transitions. [2022-11-21 13:44:12,971 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 147 transitions, 535 flow [2022-11-21 13:44:12,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:44:12,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:44:12,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 314 transitions. [2022-11-21 13:44:12,972 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8177083333333334 [2022-11-21 13:44:12,972 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 314 transitions. [2022-11-21 13:44:12,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 314 transitions. [2022-11-21 13:44:12,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:44:12,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 314 transitions. [2022-11-21 13:44:12,974 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) [2022-11-21 13:44:12,975 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) [2022-11-21 13:44:12,975 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) [2022-11-21 13:44:12,975 INFO L175 Difference]: Start difference. First operand has 120 places, 125 transitions, 348 flow. Second operand 3 states and 314 transitions. [2022-11-21 13:44:12,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 147 transitions, 535 flow [2022-11-21 13:44:12,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 147 transitions, 511 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 13:44:12,990 INFO L231 Difference]: Finished difference. Result has 122 places, 136 transitions, 426 flow [2022-11-21 13:44:12,990 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} [2022-11-21 13:44:12,991 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, -1 predicate places. [2022-11-21 13:44:12,991 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 136 transitions, 426 flow [2022-11-21 13:44:12,992 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) [2022-11-21 13:44:12,992 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:44:12,992 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] [2022-11-21 13:44:12,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 13:44:12,992 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-21 13:44:12,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:12,993 INFO L85 PathProgramCache]: Analyzing trace with hash -505216926, now seen corresponding path program 1 times [2022-11-21 13:44:12,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:12,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414854808] [2022-11-21 13:44:12,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:12,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:13,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:13,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:13,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:13,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414854808] [2022-11-21 13:44:13,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414854808] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:44:13,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753636815] [2022-11-21 13:44:13,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:13,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:44:13,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:44:13,073 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:44:13,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 13:44:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:13,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 13:44:13,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:44:13,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:13,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:44:13,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:13,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753636815] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:44:13,244 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 13:44:13,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-21 13:44:13,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629089533] [2022-11-21 13:44:13,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 13:44:13,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 13:44:13,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:13,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 13:44:13,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-21 13:44:13,247 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 128 [2022-11-21 13:44:13,248 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) [2022-11-21 13:44:13,248 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:44:13,248 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 128 [2022-11-21 13:44:13,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:44:16,320 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][105], [146#true, Black: 140#true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 32#L750-7true, salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, Black: 136#(= |#race~stopSales~0| 0), salethreadThread3of3ForFork0NotInUse, 97#L721-3true, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-21 13:44:16,321 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-21 13:44:16,321 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-21 13:44:16,321 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-21 13:44:16,321 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-21 13:44:16,321 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([505] L728-->L721-3: Formula: (= (+ v_salethreadThread2of3ForFork0_~_numberOfSeatsSold~0_7 1) v_~numberOfSeatsSold~0_14) InVars {salethreadThread2of3ForFork0_~_numberOfSeatsSold~0=v_salethreadThread2of3ForFork0_~_numberOfSeatsSold~0_7} OutVars{#race~numberOfSeatsSold~0=|v_#race~numberOfSeatsSold~0_25|, salethreadThread2of3ForFork0_~_numberOfSeatsSold~0=v_salethreadThread2of3ForFork0_~_numberOfSeatsSold~0_7, salethreadThread2of3ForFork0_#t~nondet2=|v_salethreadThread2of3ForFork0_#t~nondet2_3|, ~numberOfSeatsSold~0=v_~numberOfSeatsSold~0_14} AuxVars[] AssignedVars[~numberOfSeatsSold~0, #race~numberOfSeatsSold~0, salethreadThread2of3ForFork0_#t~nondet2][106], [146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), 140#true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 32#L750-7true, salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, Black: 134#true, salethreadThread3of3ForFork0NotInUse, 97#L721-3true, 126#true]) [2022-11-21 13:44:16,321 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-21 13:44:16,321 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-21 13:44:16,321 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-21 13:44:16,322 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-21 13:44:16,402 INFO L381 tUnfolder$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, salethreadThread2of3ForFork0InUse, Black: 134#true, salethreadThread3of3ForFork0NotInUse, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0), 55#L752true]) [2022-11-21 13:44:16,402 INFO L383 tUnfolder$Statistics]: this new event has 105 ancestors and is cut-off event [2022-11-21 13:44:16,402 INFO L386 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-11-21 13:44:16,402 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-21 13:44:16,402 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-21 13:44:16,515 INFO L130 PetriNetUnfolder]: 6176/24951 cut-off events. [2022-11-21 13:44:16,515 INFO L131 PetriNetUnfolder]: For 11078/13988 co-relation queries the response was YES. [2022-11-21 13:44:16,595 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 336490 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. [2022-11-21 13:44:16,712 INFO L137 encePairwiseOnDemand]: 122/128 looper letters, 73 selfloop transitions, 9 changer transitions 0/188 dead transitions. [2022-11-21 13:44:16,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 188 transitions, 804 flow [2022-11-21 13:44:16,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 13:44:16,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-21 13:44:16,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 888 transitions. [2022-11-21 13:44:16,716 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7708333333333334 [2022-11-21 13:44:16,716 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 888 transitions. [2022-11-21 13:44:16,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 888 transitions. [2022-11-21 13:44:16,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:44:16,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 888 transitions. [2022-11-21 13:44:16,720 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) [2022-11-21 13:44:16,722 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) [2022-11-21 13:44:16,723 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) [2022-11-21 13:44:16,723 INFO L175 Difference]: Start difference. First operand has 122 places, 136 transitions, 426 flow. Second operand 9 states and 888 transitions. [2022-11-21 13:44:16,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 188 transitions, 804 flow [2022-11-21 13:44:16,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 188 transitions, 758 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 13:44:16,827 INFO L231 Difference]: Finished difference. Result has 131 places, 142 transitions, 454 flow [2022-11-21 13:44:16,827 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} [2022-11-21 13:44:16,829 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, 8 predicate places. [2022-11-21 13:44:16,829 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 142 transitions, 454 flow [2022-11-21 13:44:16,829 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) [2022-11-21 13:44:16,830 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:44:16,830 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] [2022-11-21 13:44:16,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 13:44:17,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-21 13:44:17,041 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-21 13:44:17,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:17,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1053784385, now seen corresponding path program 1 times [2022-11-21 13:44:17,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:17,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549685528] [2022-11-21 13:44:17,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:17,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:17,118 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-21 13:44:17,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:17,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549685528] [2022-11-21 13:44:17,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549685528] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:17,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:17,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 13:44:17,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477498717] [2022-11-21 13:44:17,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:17,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 13:44:17,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:17,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 13:44:17,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 13:44:17,122 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 128 [2022-11-21 13:44:17,122 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) [2022-11-21 13:44:17,122 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:44:17,123 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 128 [2022-11-21 13:44:17,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:44:18,829 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([541] L728-->L721-3: Formula: (= (+ v_salethreadThread1of3ForFork0_~_numberOfSeatsSold~0_7 1) v_~numberOfSeatsSold~0_14) InVars {salethreadThread1of3ForFork0_~_numberOfSeatsSold~0=v_salethreadThread1of3ForFork0_~_numberOfSeatsSold~0_7} OutVars{#race~numberOfSeatsSold~0=|v_#race~numberOfSeatsSold~0_25|, ~numberOfSeatsSold~0=v_~numberOfSeatsSold~0_14, salethreadThread1of3ForFork0_~_numberOfSeatsSold~0=v_salethreadThread1of3ForFork0_~_numberOfSeatsSold~0_7, salethreadThread1of3ForFork0_#t~nondet2=|v_salethreadThread1of3ForFork0_#t~nondet2_3|} AuxVars[] AssignedVars[~numberOfSeatsSold~0, #race~numberOfSeatsSold~0, salethreadThread1of3ForFork0_#t~nondet2][45], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 10), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 32#L750-7true, Black: 134#true, 87#L721-3true, 5#L722-2true, 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), salethreadThread3of3ForFork0InUse, 126#true]) [2022-11-21 13:44:18,829 INFO L383 tUnfolder$Statistics]: this new event has 90 ancestors and is cut-off event [2022-11-21 13:44:18,829 INFO L386 tUnfolder$Statistics]: existing Event has 90 ancestors and is cut-off event [2022-11-21 13:44:18,830 INFO L386 tUnfolder$Statistics]: existing Event has 85 ancestors and is cut-off event [2022-11-21 13:44:18,830 INFO L386 tUnfolder$Statistics]: existing Event has 85 ancestors and is cut-off event [2022-11-21 13:44:18,830 INFO L381 tUnfolder$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), Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 32#L750-7true, 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]) [2022-11-21 13:44:18,831 INFO L383 tUnfolder$Statistics]: this new event has 89 ancestors and is cut-off event [2022-11-21 13:44:18,831 INFO L386 tUnfolder$Statistics]: existing Event has 89 ancestors and is cut-off event [2022-11-21 13:44:18,831 INFO L386 tUnfolder$Statistics]: existing Event has 84 ancestors and is cut-off event [2022-11-21 13:44:18,831 INFO L386 tUnfolder$Statistics]: existing Event has 84 ancestors and is cut-off event [2022-11-21 13:44:18,834 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([517] L722-2-->L723: Formula: (= v_salethreadThread3of3ForFork0_~_numberOfSeatsSold~0_1 v_~numberOfSeatsSold~0_1) InVars {~numberOfSeatsSold~0=v_~numberOfSeatsSold~0_1} OutVars{~numberOfSeatsSold~0=v_~numberOfSeatsSold~0_1, salethreadThread3of3ForFork0_~_numberOfSeatsSold~0=v_salethreadThread3of3ForFork0_~_numberOfSeatsSold~0_1} AuxVars[] AssignedVars[salethreadThread3of3ForFork0_~_numberOfSeatsSold~0][136], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 10), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 20#L728true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 32#L750-7true, 425#(and (= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0) (= ~numberOfSeatsSold~0 0)), Black: 134#true, Black: 140#true, 146#true, 39#L723true, salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, salethreadThread3of3ForFork0InUse, 126#true]) [2022-11-21 13:44:18,834 INFO L383 tUnfolder$Statistics]: this new event has 85 ancestors and is not cut-off event [2022-11-21 13:44:18,835 INFO L386 tUnfolder$Statistics]: existing Event has 90 ancestors and is not cut-off event [2022-11-21 13:44:18,835 INFO L386 tUnfolder$Statistics]: existing Event has 90 ancestors and is not cut-off event [2022-11-21 13:44:18,835 INFO L386 tUnfolder$Statistics]: existing Event has 85 ancestors and is not cut-off event [2022-11-21 13:44:18,938 INFO L381 tUnfolder$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), Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 32#L750-7true, 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]) [2022-11-21 13:44:18,939 INFO L383 tUnfolder$Statistics]: this new event has 88 ancestors and is cut-off event [2022-11-21 13:44:18,939 INFO L386 tUnfolder$Statistics]: existing Event has 88 ancestors and is cut-off event [2022-11-21 13:44:18,939 INFO L386 tUnfolder$Statistics]: existing Event has 88 ancestors and is cut-off event [2022-11-21 13:44:18,939 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-21 13:44:19,740 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([548] salethreadEXIT-->L750-7: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_16| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_salethreadThread3of3ForFork0_thidvar0_4) InVars {salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} OutVars{salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} AuxVars[] AssignedVars[][177], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 10), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 32#L750-7true, Black: 134#true, 87#L721-3true, 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-21 13:44:19,741 INFO L383 tUnfolder$Statistics]: this new event has 97 ancestors and is cut-off event [2022-11-21 13:44:19,741 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-21 13:44:19,741 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-21 13:44:19,741 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-21 13:44:19,750 INFO L381 tUnfolder$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), 20#L728true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 32#L750-7true, 425#(and (= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0) (= ~numberOfSeatsSold~0 0)), Black: 134#true, Black: 140#true, 146#true, salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-21 13:44:19,750 INFO L383 tUnfolder$Statistics]: this new event has 101 ancestors and is cut-off event [2022-11-21 13:44:19,750 INFO L386 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-11-21 13:44:19,750 INFO L386 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-11-21 13:44:19,751 INFO L386 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-11-21 13:44:19,810 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([548] salethreadEXIT-->L750-7: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_16| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_salethreadThread3of3ForFork0_thidvar0_4) InVars {salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} OutVars{salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} AuxVars[] AssignedVars[][177], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 10), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 32#L750-7true, Black: 134#true, 97#L721-3true, 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-21 13:44:19,810 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-21 13:44:19,810 INFO L386 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-11-21 13:44:19,810 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-21 13:44:19,810 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-21 13:44:20,410 INFO L381 tUnfolder$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), Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 32#L750-7true, salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0NotInUse, 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), salethreadThread3of3ForFork0NotInUse, Black: 134#true, 126#true]) [2022-11-21 13:44:20,411 INFO L383 tUnfolder$Statistics]: this new event has 116 ancestors and is cut-off event [2022-11-21 13:44:20,411 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-21 13:44:20,411 INFO L386 tUnfolder$Statistics]: existing Event has 116 ancestors and is cut-off event [2022-11-21 13:44:20,411 INFO L386 tUnfolder$Statistics]: existing Event has 116 ancestors and is cut-off event [2022-11-21 13:44:20,517 INFO L130 PetriNetUnfolder]: 7626/31979 cut-off events. [2022-11-21 13:44:20,517 INFO L131 PetriNetUnfolder]: For 7994/14839 co-relation queries the response was YES. [2022-11-21 13:44:20,637 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 456014 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. [2022-11-21 13:44:20,748 INFO L137 encePairwiseOnDemand]: 122/128 looper letters, 69 selfloop transitions, 7 changer transitions 0/190 dead transitions. [2022-11-21 13:44:20,749 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 190 transitions, 803 flow [2022-11-21 13:44:20,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 13:44:20,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 13:44:20,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 528 transitions. [2022-11-21 13:44:20,752 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.825 [2022-11-21 13:44:20,752 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 528 transitions. [2022-11-21 13:44:20,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 528 transitions. [2022-11-21 13:44:20,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:44:20,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 528 transitions. [2022-11-21 13:44:20,757 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) [2022-11-21 13:44:20,760 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) [2022-11-21 13:44:20,761 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) [2022-11-21 13:44:20,761 INFO L175 Difference]: Start difference. First operand has 131 places, 142 transitions, 454 flow. Second operand 5 states and 528 transitions. [2022-11-21 13:44:20,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 190 transitions, 803 flow [2022-11-21 13:44:20,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 190 transitions, 797 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-21 13:44:20,775 INFO L231 Difference]: Finished difference. Result has 137 places, 148 transitions, 511 flow [2022-11-21 13:44:20,775 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} [2022-11-21 13:44:20,777 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, 14 predicate places. [2022-11-21 13:44:20,777 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 148 transitions, 511 flow [2022-11-21 13:44:20,777 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) [2022-11-21 13:44:20,777 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:44:20,778 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] [2022-11-21 13:44:20,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-21 13:44:20,778 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-21 13:44:20,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:20,779 INFO L85 PathProgramCache]: Analyzing trace with hash -213244023, now seen corresponding path program 1 times [2022-11-21 13:44:20,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:20,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434638833] [2022-11-21 13:44:20,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:20,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:20,913 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-21 13:44:20,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:20,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434638833] [2022-11-21 13:44:20,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434638833] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:20,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:20,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 13:44:20,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373561477] [2022-11-21 13:44:20,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:20,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 13:44:20,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:20,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 13:44:20,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 13:44:20,917 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 128 [2022-11-21 13:44:20,918 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) [2022-11-21 13:44:20,918 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:44:20,918 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 128 [2022-11-21 13:44:20,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:44:23,610 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([548] salethreadEXIT-->L750-7: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_16| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_salethreadThread3of3ForFork0_thidvar0_4) InVars {salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} OutVars{salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} AuxVars[] AssignedVars[][172], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 10), 433#(= salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 0), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 32#L750-7true, Black: 425#(and (= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0) (= ~numberOfSeatsSold~0 0)), Black: 134#true, Black: 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), 97#L721-3true, Black: 422#(= ~numberOfSeatsSold~0 0), 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), 420#true, salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-21 13:44:23,610 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-21 13:44:23,610 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-21 13:44:23,610 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-21 13:44:23,610 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-21 13:44:24,560 INFO L381 tUnfolder$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), Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 32#L750-7true, 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]) [2022-11-21 13:44:24,560 INFO L383 tUnfolder$Statistics]: this new event has 116 ancestors and is cut-off event [2022-11-21 13:44:24,561 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-21 13:44:24,561 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-21 13:44:24,561 INFO L386 tUnfolder$Statistics]: existing Event has 116 ancestors and is cut-off event [2022-11-21 13:44:24,799 INFO L130 PetriNetUnfolder]: 7497/33079 cut-off events. [2022-11-21 13:44:24,800 INFO L131 PetriNetUnfolder]: For 16019/21826 co-relation queries the response was YES. [2022-11-21 13:44:24,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58016 conditions, 33079 events. 7497/33079 cut-off events. For 16019/21826 co-relation queries the response was YES. Maximal size of possible extension queue 1427. Compared 480047 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. [2022-11-21 13:44:24,984 INFO L137 encePairwiseOnDemand]: 122/128 looper letters, 62 selfloop transitions, 10 changer transitions 0/186 dead transitions. [2022-11-21 13:44:24,985 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 186 transitions, 838 flow [2022-11-21 13:44:24,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 13:44:24,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 13:44:24,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 525 transitions. [2022-11-21 13:44:24,987 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8203125 [2022-11-21 13:44:24,987 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 525 transitions. [2022-11-21 13:44:24,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 525 transitions. [2022-11-21 13:44:24,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:44:24,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 525 transitions. [2022-11-21 13:44:24,990 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) [2022-11-21 13:44:24,991 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) [2022-11-21 13:44:24,992 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) [2022-11-21 13:44:24,992 INFO L175 Difference]: Start difference. First operand has 137 places, 148 transitions, 511 flow. Second operand 5 states and 525 transitions. [2022-11-21 13:44:24,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 186 transitions, 838 flow [2022-11-21 13:44:25,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 186 transitions, 834 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 13:44:25,022 INFO L231 Difference]: Finished difference. Result has 143 places, 152 transitions, 574 flow [2022-11-21 13:44:25,022 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} [2022-11-21 13:44:25,022 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, 20 predicate places. [2022-11-21 13:44:25,023 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 152 transitions, 574 flow [2022-11-21 13:44:25,023 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) [2022-11-21 13:44:25,023 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:44:25,023 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] [2022-11-21 13:44:25,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-21 13:44:25,024 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-21 13:44:25,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:25,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1287448103, now seen corresponding path program 1 times [2022-11-21 13:44:25,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:25,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672967333] [2022-11-21 13:44:25,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:25,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:25,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:44:25,040 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:44:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:44:25,053 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:44:25,054 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 13:44:25,054 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (21 of 22 remaining) [2022-11-21 13:44:25,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2022-11-21 13:44:25,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2022-11-21 13:44:25,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2022-11-21 13:44:25,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2022-11-21 13:44:25,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2022-11-21 13:44:25,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2022-11-21 13:44:25,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2022-11-21 13:44:25,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2022-11-21 13:44:25,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2022-11-21 13:44:25,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 22 remaining) [2022-11-21 13:44:25,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2022-11-21 13:44:25,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2022-11-21 13:44:25,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2022-11-21 13:44:25,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2022-11-21 13:44:25,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2022-11-21 13:44:25,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2022-11-21 13:44:25,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2022-11-21 13:44:25,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2022-11-21 13:44:25,058 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2022-11-21 13:44:25,058 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2022-11-21 13:44:25,058 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2022-11-21 13:44:25,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-21 13:44:25,058 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:44:25,064 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2022-11-21 13:44:25,064 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 13:44:25,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:44:25 BasicIcfg [2022-11-21 13:44:25,136 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 13:44:25,137 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 13:44:25,137 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 13:44:25,138 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 13:44:25,138 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:44:06" (3/4) ... [2022-11-21 13:44:25,143 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 13:44:25,143 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 13:44:25,144 INFO L158 Benchmark]: Toolchain (without parser) took 20296.65ms. Allocated memory was 159.4MB in the beginning and 6.8GB in the end (delta: 6.6GB). Free memory was 123.2MB in the beginning and 6.0GB in the end (delta: -5.9GB). Peak memory consumption was 737.4MB. Max. memory is 16.1GB. [2022-11-21 13:44:25,144 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 159.4MB. Free memory was 127.0MB in the beginning and 126.9MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:44:25,144 INFO L158 Benchmark]: CACSL2BoogieTranslator took 595.66ms. Allocated memory is still 159.4MB. Free memory was 122.7MB in the beginning and 103.2MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-21 13:44:25,145 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.48ms. Allocated memory is still 159.4MB. Free memory was 103.2MB in the beginning and 101.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:44:25,145 INFO L158 Benchmark]: Boogie Preprocessor took 41.51ms. Allocated memory is still 159.4MB. Free memory was 101.2MB in the beginning and 99.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:44:25,145 INFO L158 Benchmark]: RCFGBuilder took 599.37ms. Allocated memory is still 159.4MB. Free memory was 99.7MB in the beginning and 82.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 13:44:25,146 INFO L158 Benchmark]: TraceAbstraction took 19007.96ms. Allocated memory was 159.4MB in the beginning and 6.8GB in the end (delta: 6.6GB). Free memory was 82.4MB in the beginning and 6.0GB in the end (delta: -5.9GB). Peak memory consumption was 695.4MB. Max. memory is 16.1GB. [2022-11-21 13:44:25,146 INFO L158 Benchmark]: Witness Printer took 6.29ms. Allocated memory is still 6.8GB. Free memory is still 6.0GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:44:25,148 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 159.4MB. Free memory was 127.0MB in the beginning and 126.9MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 595.66ms. Allocated memory is still 159.4MB. Free memory was 122.7MB in the beginning and 103.2MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.48ms. Allocated memory is still 159.4MB. Free memory was 103.2MB in the beginning and 101.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.51ms. Allocated memory is still 159.4MB. Free memory was 101.2MB in the beginning and 99.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 599.37ms. Allocated memory is still 159.4MB. Free memory was 99.7MB in the beginning and 82.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 19007.96ms. Allocated memory was 159.4MB in the beginning and 6.8GB in the end (delta: 6.6GB). Free memory was 82.4MB in the beginning and 6.0GB in the end (delta: -5.9GB). Peak memory consumption was 695.4MB. Max. memory is 16.1GB. * Witness Printer took 6.29ms. Allocated memory is still 6.8GB. Free memory is still 6.0GB. 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: [L717] 0 int numberOfSeatsSold; VAL [numberOfSeatsSold=0] [L718] 0 int stopSales; VAL [numberOfSeatsSold=0, stopSales=0] [L719] 0 int numOfTickets; 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] [L746] 0 i++ VAL [\old(argc)=49, 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}, 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}, 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] 1 !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] [L721] 2 !stopSales VAL [_numberOfSeatsSold=0, arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=10, stopSales=0] [L721] COND TRUE 2 !stopSales VAL [_numberOfSeatsSold=0, arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=10, stopSales=0] [L722] 2 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: 1.6s, OverallIterations: 6, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, 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, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 207 IncrementalHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 21 mSDtfsCounter, 207 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=332occurred in iteration=4, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 252 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 239 ConstructedInterpolants, 0 QuantifiedInterpolants, 311 SizeOfPredicates, 2 NumberOfNonLiveVariables, 111 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 134 locations, 22 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 15.8s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 14.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 171 SdHoareTripleChecker+Valid, 0.4s 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, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 339 ConstructedInterpolants, 0 QuantifiedInterpolants, 519 SizeOfPredicates, 2 NumberOfNonLiveVariables, 111 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 10/13 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-21 13:44:25,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac157662-284a-49ab-9836-94efeae178a6/bin/uautomizer-vX5HgA9Q3a/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