./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-deagle/airline-25.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-deagle/airline-25.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a0d81069750f24e52e04bdb7efecd6d77b64aec41e058c154f75fbba11e6c11d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:42:29,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:42:29,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:42:29,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:42:29,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:42:29,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:42:29,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:42:29,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:42:29,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:42:29,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:42:29,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:42:29,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:42:29,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:42:29,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:42:29,933 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:42:29,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:42:29,935 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:42:29,937 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:42:29,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:42:29,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:42:29,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:42:29,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:42:29,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:42:29,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:42:29,955 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:42:29,955 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:42:29,956 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:42:29,957 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:42:29,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:42:29,958 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:42:29,959 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:42:29,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:42:29,960 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:42:29,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:42:29,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:42:29,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:42:29,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:42:29,976 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:42:29,977 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:42:29,978 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:42:29,979 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:42:29,980 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:42:30,023 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:42:30,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:42:30,024 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:42:30,024 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:42:30,025 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:42:30,025 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:42:30,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:42:30,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:42:30,026 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:42:30,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:42:30,027 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:42:30,027 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:42:30,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:42:30,027 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:42:30,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:42:30,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:42:30,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:42:30,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:42:30,028 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:42:30,028 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:42:30,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:42:30,029 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:42:30,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:42:30,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:42:30,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:42:30,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:42:30,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:42:30,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:42:30,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:42:30,031 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:42:30,031 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:42:30,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:42:30,031 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:42:30,032 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:42:30,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:42:30,032 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_41587929-7538-4971-829e-f64047f4f2c1/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0d81069750f24e52e04bdb7efecd6d77b64aec41e058c154f75fbba11e6c11d [2022-11-18 20:42:30,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:42:30,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:42:30,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:42:30,322 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:42:30,323 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:42:30,324 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-deagle/airline-25.i [2022-11-18 20:42:30,388 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/bin/uautomizer-TMbwUNV5ro/data/adaaabdcd/ffc5e8d9e97b4fc78c931ab53234569d/FLAG30d25b1b9 [2022-11-18 20:42:30,955 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:42:30,959 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/sv-benchmarks/c/pthread-deagle/airline-25.i [2022-11-18 20:42:30,979 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/bin/uautomizer-TMbwUNV5ro/data/adaaabdcd/ffc5e8d9e97b4fc78c931ab53234569d/FLAG30d25b1b9 [2022-11-18 20:42:31,232 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/bin/uautomizer-TMbwUNV5ro/data/adaaabdcd/ffc5e8d9e97b4fc78c931ab53234569d [2022-11-18 20:42:31,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:42:31,236 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:42:31,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:42:31,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:42:31,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:42:31,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:42:31" (1/1) ... [2022-11-18 20:42:31,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33569eef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:31, skipping insertion in model container [2022-11-18 20:42:31,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:42:31" (1/1) ... [2022-11-18 20:42:31,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:42:31,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:42:31,643 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/sv-benchmarks/c/pthread-deagle/airline-25.i[32101,32114] [2022-11-18 20:42:31,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:42:31,653 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:42:31,702 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/sv-benchmarks/c/pthread-deagle/airline-25.i[32101,32114] [2022-11-18 20:42:31,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:42:31,738 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:42:31,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:31 WrapperNode [2022-11-18 20:42:31,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:42:31,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:42:31,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:42:31,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:42:31,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:31" (1/1) ... [2022-11-18 20:42:31,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:31" (1/1) ... [2022-11-18 20:42:31,786 INFO L138 Inliner]: procedures = 162, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 80 [2022-11-18 20:42:31,787 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:42:31,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:42:31,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:42:31,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:42:31,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:31" (1/1) ... [2022-11-18 20:42:31,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:31" (1/1) ... [2022-11-18 20:42:31,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:31" (1/1) ... [2022-11-18 20:42:31,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:31" (1/1) ... [2022-11-18 20:42:31,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:31" (1/1) ... [2022-11-18 20:42:31,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:31" (1/1) ... [2022-11-18 20:42:31,815 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:31" (1/1) ... [2022-11-18 20:42:31,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:31" (1/1) ... [2022-11-18 20:42:31,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:42:31,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:42:31,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:42:31,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:42:31,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:31" (1/1) ... [2022-11-18 20:42:31,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:42:31,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:42:31,854 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:42:31,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:42:31,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:42:31,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:42:31,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:42:31,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:42:31,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:42:31,913 INFO L130 BoogieDeclarations]: Found specification of procedure salethread [2022-11-18 20:42:31,913 INFO L138 BoogieDeclarations]: Found implementation of procedure salethread [2022-11-18 20:42:31,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:42:31,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:42:31,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:42:31,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:42:31,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:42:31,916 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:42:32,127 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:42:32,129 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:42:32,320 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:42:32,384 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:42:32,384 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 20:42:32,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:42:32 BoogieIcfgContainer [2022-11-18 20:42:32,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:42:32,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:42:32,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:42:32,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:42:32,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:42:31" (1/3) ... [2022-11-18 20:42:32,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ebc21d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:42:32, skipping insertion in model container [2022-11-18 20:42:32,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:31" (2/3) ... [2022-11-18 20:42:32,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ebc21d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:42:32, skipping insertion in model container [2022-11-18 20:42:32,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:42:32" (3/3) ... [2022-11-18 20:42:32,406 INFO L112 eAbstractionObserver]: Analyzing ICFG airline-25.i [2022-11-18 20:42:32,421 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:42:32,431 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:42:32,431 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-18 20:42:32,431 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:42:32,474 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-18 20:42:32,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 88 transitions, 184 flow [2022-11-18 20:42:32,590 INFO L130 PetriNetUnfolder]: 9/119 cut-off events. [2022-11-18 20:42:32,590 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:42:32,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 119 events. 9/119 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 238 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 58. Up to 4 conditions per place. [2022-11-18 20:42:32,596 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 88 transitions, 184 flow [2022-11-18 20:42:32,607 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 88 transitions, 184 flow [2022-11-18 20:42:32,623 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:42:32,634 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;@1a2e1dfc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:42:32,634 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-18 20:42:32,645 INFO L130 PetriNetUnfolder]: 0/20 cut-off events. [2022-11-18 20:42:32,647 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:42:32,647 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:42:32,648 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:42:32,649 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 20:42:32,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:42:32,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1999147629, now seen corresponding path program 1 times [2022-11-18 20:42:32,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:42:32,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880824383] [2022-11-18 20:42:32,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:32,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:42:32,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:42:32,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:42:32,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:42:32,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880824383] [2022-11-18 20:42:32,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880824383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:42:32,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:42:32,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:42:32,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088710221] [2022-11-18 20:42:32,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:42:32,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:42:32,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:42:32,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:42:32,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:42:32,959 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 88 [2022-11-18 20:42:32,962 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 88 transitions, 184 flow. Second operand has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:32,963 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:42:32,963 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 88 [2022-11-18 20:42:32,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:42:33,017 INFO L130 PetriNetUnfolder]: 3/106 cut-off events. [2022-11-18 20:42:33,017 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 20:42:33,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 106 events. 3/106 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 215 event pairs, 0 based on Foata normal form. 6/98 useless extension candidates. Maximal degree in co-relation 50. Up to 8 conditions per place. [2022-11-18 20:42:33,020 INFO L137 encePairwiseOnDemand]: 80/88 looper letters, 7 selfloop transitions, 0 changer transitions 0/79 dead transitions. [2022-11-18 20:42:33,020 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 79 transitions, 180 flow [2022-11-18 20:42:33,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:42:33,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-18 20:42:33,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 159 transitions. [2022-11-18 20:42:33,035 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9034090909090909 [2022-11-18 20:42:33,035 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 159 transitions. [2022-11-18 20:42:33,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 159 transitions. [2022-11-18 20:42:33,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:42:33,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 159 transitions. [2022-11-18 20:42:33,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:33,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:33,048 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:33,050 INFO L175 Difference]: Start difference. First operand has 85 places, 88 transitions, 184 flow. Second operand 2 states and 159 transitions. [2022-11-18 20:42:33,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 79 transitions, 180 flow [2022-11-18 20:42:33,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 79 transitions, 180 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:42:33,058 INFO L231 Difference]: Finished difference. Result has 80 places, 79 transitions, 166 flow [2022-11-18 20:42:33,061 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=166, PETRI_PLACES=80, PETRI_TRANSITIONS=79} [2022-11-18 20:42:33,070 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, -5 predicate places. [2022-11-18 20:42:33,070 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 79 transitions, 166 flow [2022-11-18 20:42:33,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:33,071 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:42:33,071 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:42:33,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:42:33,072 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 20:42:33,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:42:33,073 INFO L85 PathProgramCache]: Analyzing trace with hash 676304161, now seen corresponding path program 1 times [2022-11-18 20:42:33,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:42:33,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693684564] [2022-11-18 20:42:33,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:33,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:42:33,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:42:33,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:42:33,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:42:33,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693684564] [2022-11-18 20:42:33,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693684564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:42:33,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:42:33,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:42:33,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249560790] [2022-11-18 20:42:33,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:42:33,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:42:33,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:42:33,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:42:33,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:42:33,282 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 88 [2022-11-18 20:42:33,285 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 79 transitions, 166 flow. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:33,285 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:42:33,285 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 88 [2022-11-18 20:42:33,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:42:33,381 INFO L130 PetriNetUnfolder]: 12/148 cut-off events. [2022-11-18 20:42:33,382 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 20:42:33,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 148 events. 12/148 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 343 event pairs, 3 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 185. Up to 23 conditions per place. [2022-11-18 20:42:33,383 INFO L137 encePairwiseOnDemand]: 85/88 looper letters, 16 selfloop transitions, 2 changer transitions 0/83 dead transitions. [2022-11-18 20:42:33,384 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 83 transitions, 210 flow [2022-11-18 20:42:33,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:42:33,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:42:33,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2022-11-18 20:42:33,387 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8106060606060606 [2022-11-18 20:42:33,387 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 214 transitions. [2022-11-18 20:42:33,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 214 transitions. [2022-11-18 20:42:33,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:42:33,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 214 transitions. [2022-11-18 20:42:33,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:33,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:33,392 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:33,392 INFO L175 Difference]: Start difference. First operand has 80 places, 79 transitions, 166 flow. Second operand 3 states and 214 transitions. [2022-11-18 20:42:33,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 83 transitions, 210 flow [2022-11-18 20:42:33,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 83 transitions, 210 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:42:33,396 INFO L231 Difference]: Finished difference. Result has 83 places, 79 transitions, 174 flow [2022-11-18 20:42:33,396 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=83, PETRI_TRANSITIONS=79} [2022-11-18 20:42:33,397 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, -2 predicate places. [2022-11-18 20:42:33,397 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 79 transitions, 174 flow [2022-11-18 20:42:33,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:33,398 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:42:33,398 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:42:33,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:42:33,399 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 20:42:33,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:42:33,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1440702948, now seen corresponding path program 1 times [2022-11-18 20:42:33,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:42:33,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547014997] [2022-11-18 20:42:33,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:33,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:42:33,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:42:33,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:42:33,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:42:33,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547014997] [2022-11-18 20:42:33,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547014997] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:42:33,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:42:33,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:42:33,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999236869] [2022-11-18 20:42:33,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:42:33,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:42:33,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:42:33,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:42:33,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:42:33,470 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 88 [2022-11-18 20:42:33,470 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 79 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:33,470 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:42:33,471 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 88 [2022-11-18 20:42:33,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:42:33,519 INFO L130 PetriNetUnfolder]: 1/131 cut-off events. [2022-11-18 20:42:33,519 INFO L131 PetriNetUnfolder]: For 8/14 co-relation queries the response was YES. [2022-11-18 20:42:33,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 131 events. 1/131 cut-off events. For 8/14 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 238 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 150. Up to 7 conditions per place. [2022-11-18 20:42:33,521 INFO L137 encePairwiseOnDemand]: 85/88 looper letters, 8 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2022-11-18 20:42:33,521 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 79 transitions, 197 flow [2022-11-18 20:42:33,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:42:33,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:42:33,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2022-11-18 20:42:33,529 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8257575757575758 [2022-11-18 20:42:33,529 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 218 transitions. [2022-11-18 20:42:33,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 218 transitions. [2022-11-18 20:42:33,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:42:33,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 218 transitions. [2022-11-18 20:42:33,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:33,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:33,534 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:33,534 INFO L175 Difference]: Start difference. First operand has 83 places, 79 transitions, 174 flow. Second operand 3 states and 218 transitions. [2022-11-18 20:42:33,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 79 transitions, 197 flow [2022-11-18 20:42:33,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 79 transitions, 193 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:42:33,537 INFO L231 Difference]: Finished difference. Result has 82 places, 78 transitions, 172 flow [2022-11-18 20:42:33,537 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=82, PETRI_TRANSITIONS=78} [2022-11-18 20:42:33,538 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, -3 predicate places. [2022-11-18 20:42:33,538 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 78 transitions, 172 flow [2022-11-18 20:42:33,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:33,539 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:42:33,539 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:42:33,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:42:33,542 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 20:42:33,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:42:33,542 INFO L85 PathProgramCache]: Analyzing trace with hash 373619005, now seen corresponding path program 1 times [2022-11-18 20:42:33,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:42:33,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090061206] [2022-11-18 20:42:33,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:33,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:42:33,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:42:33,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:42:33,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:42:33,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090061206] [2022-11-18 20:42:33,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090061206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:42:33,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:42:33,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:42:33,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295760808] [2022-11-18 20:42:33,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:42:33,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:42:33,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:42:33,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:42:33,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:42:33,611 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 88 [2022-11-18 20:42:33,611 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 78 transitions, 172 flow. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:33,612 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:42:33,612 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 88 [2022-11-18 20:42:33,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:42:33,672 INFO L130 PetriNetUnfolder]: 7/188 cut-off events. [2022-11-18 20:42:33,672 INFO L131 PetriNetUnfolder]: For 10/16 co-relation queries the response was YES. [2022-11-18 20:42:33,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 188 events. 7/188 cut-off events. For 10/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 580 event pairs, 4 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 231. Up to 23 conditions per place. [2022-11-18 20:42:33,673 INFO L137 encePairwiseOnDemand]: 82/88 looper letters, 11 selfloop transitions, 3 changer transitions 11/81 dead transitions. [2022-11-18 20:42:33,674 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 81 transitions, 213 flow [2022-11-18 20:42:33,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:42:33,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:42:33,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 216 transitions. [2022-11-18 20:42:33,675 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8181818181818182 [2022-11-18 20:42:33,676 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 216 transitions. [2022-11-18 20:42:33,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 216 transitions. [2022-11-18 20:42:33,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:42:33,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 216 transitions. [2022-11-18 20:42:33,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:33,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:33,678 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:33,679 INFO L175 Difference]: Start difference. First operand has 82 places, 78 transitions, 172 flow. Second operand 3 states and 216 transitions. [2022-11-18 20:42:33,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 81 transitions, 213 flow [2022-11-18 20:42:33,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 81 transitions, 209 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:42:33,681 INFO L231 Difference]: Finished difference. Result has 83 places, 69 transitions, 168 flow [2022-11-18 20:42:33,696 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=83, PETRI_TRANSITIONS=69} [2022-11-18 20:42:33,697 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, -2 predicate places. [2022-11-18 20:42:33,697 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 69 transitions, 168 flow [2022-11-18 20:42:33,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:33,697 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:42:33,698 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:42:33,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:42:33,698 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 20:42:33,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:42:33,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1959545260, now seen corresponding path program 1 times [2022-11-18 20:42:33,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:42:33,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758552880] [2022-11-18 20:42:33,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:33,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:42:33,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:42:33,747 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:42:33,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:42:33,821 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:42:33,822 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:42:33,823 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 14 remaining) [2022-11-18 20:42:33,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2022-11-18 20:42:33,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2022-11-18 20:42:33,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2022-11-18 20:42:33,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2022-11-18 20:42:33,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2022-11-18 20:42:33,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2022-11-18 20:42:33,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2022-11-18 20:42:33,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2022-11-18 20:42:33,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2022-11-18 20:42:33,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2022-11-18 20:42:33,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2022-11-18 20:42:33,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2022-11-18 20:42:33,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2022-11-18 20:42:33,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:42:33,831 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-18 20:42:33,834 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 20:42:33,834 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-18 20:42:33,879 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 20:42:33,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 108 transitions, 234 flow [2022-11-18 20:42:33,936 INFO L130 PetriNetUnfolder]: 18/209 cut-off events. [2022-11-18 20:42:33,936 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 20:42:33,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 209 events. 18/209 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 516 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 121. Up to 8 conditions per place. [2022-11-18 20:42:33,942 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 108 transitions, 234 flow [2022-11-18 20:42:33,944 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 108 transitions, 234 flow [2022-11-18 20:42:33,957 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:42:33,958 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;@1a2e1dfc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:42:33,958 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-18 20:42:33,961 INFO L130 PetriNetUnfolder]: 0/20 cut-off events. [2022-11-18 20:42:33,961 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:42:33,961 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:42:33,961 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:42:33,962 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-18 20:42:33,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:42:33,962 INFO L85 PathProgramCache]: Analyzing trace with hash -746215681, now seen corresponding path program 1 times [2022-11-18 20:42:33,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:42:33,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168894667] [2022-11-18 20:42:33,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:33,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:42:33,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:42:33,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:42:33,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:42:33,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168894667] [2022-11-18 20:42:33,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168894667] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:42:33,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:42:33,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:42:33,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920964306] [2022-11-18 20:42:33,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:42:33,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:42:33,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:42:33,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:42:33,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:42:33,989 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 108 [2022-11-18 20:42:33,989 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 108 transitions, 234 flow. Second operand has 2 states, 2 states have (on average 86.5) internal successors, (173), 2 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:33,990 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:42:33,990 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 108 [2022-11-18 20:42:33,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:42:34,043 INFO L130 PetriNetUnfolder]: 16/208 cut-off events. [2022-11-18 20:42:34,044 INFO L131 PetriNetUnfolder]: For 36/41 co-relation queries the response was YES. [2022-11-18 20:42:34,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 208 events. 16/208 cut-off events. For 36/41 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 642 event pairs, 1 based on Foata normal form. 18/197 useless extension candidates. Maximal degree in co-relation 116. Up to 27 conditions per place. [2022-11-18 20:42:34,046 INFO L137 encePairwiseOnDemand]: 98/108 looper letters, 11 selfloop transitions, 0 changer transitions 0/97 dead transitions. [2022-11-18 20:42:34,046 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 97 transitions, 234 flow [2022-11-18 20:42:34,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:42:34,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-18 20:42:34,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 193 transitions. [2022-11-18 20:42:34,048 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8935185185185185 [2022-11-18 20:42:34,048 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 193 transitions. [2022-11-18 20:42:34,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 193 transitions. [2022-11-18 20:42:34,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:42:34,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 193 transitions. [2022-11-18 20:42:34,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 96.5) internal successors, (193), 2 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:34,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:34,051 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:34,051 INFO L175 Difference]: Start difference. First operand has 104 places, 108 transitions, 234 flow. Second operand 2 states and 193 transitions. [2022-11-18 20:42:34,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 97 transitions, 234 flow [2022-11-18 20:42:34,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 97 transitions, 234 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:42:34,054 INFO L231 Difference]: Finished difference. Result has 97 places, 97 transitions, 212 flow [2022-11-18 20:42:34,054 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=212, PETRI_PLACES=97, PETRI_TRANSITIONS=97} [2022-11-18 20:42:34,055 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, -7 predicate places. [2022-11-18 20:42:34,055 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 97 transitions, 212 flow [2022-11-18 20:42:34,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 86.5) internal successors, (173), 2 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:34,056 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:42:34,056 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:42:34,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:42:34,056 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-18 20:42:34,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:42:34,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1859938163, now seen corresponding path program 1 times [2022-11-18 20:42:34,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:42:34,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119735604] [2022-11-18 20:42:34,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:34,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:42:34,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:42:34,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:42:34,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:42:34,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119735604] [2022-11-18 20:42:34,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119735604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:42:34,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:42:34,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:42:34,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052553583] [2022-11-18 20:42:34,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:42:34,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:42:34,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:42:34,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:42:34,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:42:34,126 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 108 [2022-11-18 20:42:34,127 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 97 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:34,127 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:42:34,127 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 108 [2022-11-18 20:42:34,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:42:34,271 INFO L130 PetriNetUnfolder]: 68/423 cut-off events. [2022-11-18 20:42:34,271 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-11-18 20:42:34,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 567 conditions, 423 events. 68/423 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2061 event pairs, 9 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 562. Up to 103 conditions per place. [2022-11-18 20:42:34,282 INFO L137 encePairwiseOnDemand]: 105/108 looper letters, 22 selfloop transitions, 2 changer transitions 0/103 dead transitions. [2022-11-18 20:42:34,284 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 103 transitions, 272 flow [2022-11-18 20:42:34,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:42:34,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:42:34,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2022-11-18 20:42:34,296 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.808641975308642 [2022-11-18 20:42:34,296 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 262 transitions. [2022-11-18 20:42:34,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 262 transitions. [2022-11-18 20:42:34,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:42:34,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 262 transitions. [2022-11-18 20:42:34,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:34,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:34,307 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:34,307 INFO L175 Difference]: Start difference. First operand has 97 places, 97 transitions, 212 flow. Second operand 3 states and 262 transitions. [2022-11-18 20:42:34,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 103 transitions, 272 flow [2022-11-18 20:42:34,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 103 transitions, 272 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:42:34,311 INFO L231 Difference]: Finished difference. Result has 100 places, 98 transitions, 224 flow [2022-11-18 20:42:34,311 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=100, PETRI_TRANSITIONS=98} [2022-11-18 20:42:34,312 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, -4 predicate places. [2022-11-18 20:42:34,312 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 98 transitions, 224 flow [2022-11-18 20:42:34,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:34,313 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:42:34,313 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:42:34,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:42:34,313 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-18 20:42:34,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:42:34,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1310943378, now seen corresponding path program 1 times [2022-11-18 20:42:34,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:42:34,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830291415] [2022-11-18 20:42:34,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:34,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:42:34,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:42:34,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:42:34,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:42:34,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830291415] [2022-11-18 20:42:34,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830291415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:42:34,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:42:34,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:42:34,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029375016] [2022-11-18 20:42:34,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:42:34,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:42:34,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:42:34,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:42:34,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:42:34,371 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 108 [2022-11-18 20:42:34,372 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 98 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:34,372 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:42:34,372 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 108 [2022-11-18 20:42:34,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:42:34,534 INFO L130 PetriNetUnfolder]: 52/631 cut-off events. [2022-11-18 20:42:34,535 INFO L131 PetriNetUnfolder]: For 111/313 co-relation queries the response was YES. [2022-11-18 20:42:34,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 787 conditions, 631 events. 52/631 cut-off events. For 111/313 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3962 event pairs, 10 based on Foata normal form. 0/523 useless extension candidates. Maximal degree in co-relation 780. Up to 52 conditions per place. [2022-11-18 20:42:34,540 INFO L137 encePairwiseOnDemand]: 100/108 looper letters, 22 selfloop transitions, 6 changer transitions 0/109 dead transitions. [2022-11-18 20:42:34,540 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 109 transitions, 313 flow [2022-11-18 20:42:34,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:42:34,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:42:34,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 270 transitions. [2022-11-18 20:42:34,542 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2022-11-18 20:42:34,542 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 270 transitions. [2022-11-18 20:42:34,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 270 transitions. [2022-11-18 20:42:34,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:42:34,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 270 transitions. [2022-11-18 20:42:34,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:34,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:34,547 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:34,547 INFO L175 Difference]: Start difference. First operand has 100 places, 98 transitions, 224 flow. Second operand 3 states and 270 transitions. [2022-11-18 20:42:34,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 109 transitions, 313 flow [2022-11-18 20:42:34,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 109 transitions, 311 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:42:34,554 INFO L231 Difference]: Finished difference. Result has 103 places, 104 transitions, 274 flow [2022-11-18 20:42:34,554 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=103, PETRI_TRANSITIONS=104} [2022-11-18 20:42:34,556 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, -1 predicate places. [2022-11-18 20:42:34,556 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 104 transitions, 274 flow [2022-11-18 20:42:34,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:34,558 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:42:34,558 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:42:34,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:42:34,559 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-18 20:42:34,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:42:34,559 INFO L85 PathProgramCache]: Analyzing trace with hash 176942779, now seen corresponding path program 1 times [2022-11-18 20:42:34,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:42:34,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427920305] [2022-11-18 20:42:34,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:34,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:42:34,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:42:34,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:42:34,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:42:34,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427920305] [2022-11-18 20:42:34,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427920305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:42:34,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:42:34,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:42:34,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255662726] [2022-11-18 20:42:34,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:42:34,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:42:34,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:42:34,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:42:34,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:42:34,635 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 108 [2022-11-18 20:42:34,635 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 104 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:34,635 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:42:34,635 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 108 [2022-11-18 20:42:34,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:42:34,982 INFO L130 PetriNetUnfolder]: 266/1659 cut-off events. [2022-11-18 20:42:34,982 INFO L131 PetriNetUnfolder]: For 362/767 co-relation queries the response was YES. [2022-11-18 20:42:34,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2433 conditions, 1659 events. 266/1659 cut-off events. For 362/767 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 14100 event pairs, 91 based on Foata normal form. 1/1410 useless extension candidates. Maximal degree in co-relation 2425. Up to 383 conditions per place. [2022-11-18 20:42:34,994 INFO L137 encePairwiseOnDemand]: 97/108 looper letters, 27 selfloop transitions, 8 changer transitions 0/117 dead transitions. [2022-11-18 20:42:34,994 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 117 transitions, 389 flow [2022-11-18 20:42:34,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:42:34,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:42:34,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 267 transitions. [2022-11-18 20:42:34,996 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8240740740740741 [2022-11-18 20:42:34,996 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 267 transitions. [2022-11-18 20:42:34,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 267 transitions. [2022-11-18 20:42:34,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:42:34,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 267 transitions. [2022-11-18 20:42:34,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:34,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:34,999 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:35,000 INFO L175 Difference]: Start difference. First operand has 103 places, 104 transitions, 274 flow. Second operand 3 states and 267 transitions. [2022-11-18 20:42:35,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 117 transitions, 389 flow [2022-11-18 20:42:35,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 117 transitions, 373 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:42:35,012 INFO L231 Difference]: Finished difference. Result has 105 places, 112 transitions, 332 flow [2022-11-18 20:42:35,013 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=105, PETRI_TRANSITIONS=112} [2022-11-18 20:42:35,016 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, 1 predicate places. [2022-11-18 20:42:35,017 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 112 transitions, 332 flow [2022-11-18 20:42:35,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:35,017 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:42:35,018 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:42:35,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:42:35,020 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-18 20:42:35,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:42:35,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1184394343, now seen corresponding path program 1 times [2022-11-18 20:42:35,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:42:35,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127473723] [2022-11-18 20:42:35,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:35,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:42:35,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:42:35,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:42:35,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:42:35,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127473723] [2022-11-18 20:42:35,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127473723] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:42:35,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695157424] [2022-11-18 20:42:35,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:35,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:42:35,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:42:35,129 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:42:35,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:42:35,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:42:35,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:42:35,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:42:35,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:42:35,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:42:35,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:42:35,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695157424] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:42:35,450 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:42:35,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 20:42:35,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854730821] [2022-11-18 20:42:35,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:42:35,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:42:35,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:42:35,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:42:35,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:42:35,453 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 108 [2022-11-18 20:42:35,455 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 112 transitions, 332 flow. Second operand has 10 states, 10 states have (on average 80.6) internal successors, (806), 10 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:35,455 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:42:35,455 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 108 [2022-11-18 20:42:35,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:42:35,742 INFO L130 PetriNetUnfolder]: 196/645 cut-off events. [2022-11-18 20:42:35,742 INFO L131 PetriNetUnfolder]: For 445/620 co-relation queries the response was YES. [2022-11-18 20:42:35,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1418 conditions, 645 events. 196/645 cut-off events. For 445/620 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 4598 event pairs, 5 based on Foata normal form. 47/623 useless extension candidates. Maximal degree in co-relation 1409. Up to 156 conditions per place. [2022-11-18 20:42:35,749 INFO L137 encePairwiseOnDemand]: 103/108 looper letters, 50 selfloop transitions, 7 changer transitions 0/117 dead transitions. [2022-11-18 20:42:35,749 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 117 transitions, 512 flow [2022-11-18 20:42:35,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:42:35,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:42:35,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 745 transitions. [2022-11-18 20:42:35,752 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7664609053497943 [2022-11-18 20:42:35,753 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 745 transitions. [2022-11-18 20:42:35,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 745 transitions. [2022-11-18 20:42:35,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:42:35,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 745 transitions. [2022-11-18 20:42:35,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 82.77777777777777) internal successors, (745), 9 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:35,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 108.0) internal successors, (1080), 10 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:35,758 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 108.0) internal successors, (1080), 10 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:35,759 INFO L175 Difference]: Start difference. First operand has 105 places, 112 transitions, 332 flow. Second operand 9 states and 745 transitions. [2022-11-18 20:42:35,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 117 transitions, 512 flow [2022-11-18 20:42:35,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 117 transitions, 480 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-11-18 20:42:35,764 INFO L231 Difference]: Finished difference. Result has 84 places, 83 transitions, 252 flow [2022-11-18 20:42:35,764 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=252, PETRI_PLACES=84, PETRI_TRANSITIONS=83} [2022-11-18 20:42:35,772 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, -20 predicate places. [2022-11-18 20:42:35,776 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 83 transitions, 252 flow [2022-11-18 20:42:35,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 80.6) internal successors, (806), 10 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:35,777 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:42:35,777 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:42:35,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-18 20:42:35,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 20:42:35,983 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-18 20:42:35,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:42:35,984 INFO L85 PathProgramCache]: Analyzing trace with hash 96829731, now seen corresponding path program 1 times [2022-11-18 20:42:35,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:42:35,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679886327] [2022-11-18 20:42:35,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:35,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:42:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:42:36,008 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:42:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:42:36,043 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:42:36,044 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:42:36,044 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2022-11-18 20:42:36,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2022-11-18 20:42:36,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2022-11-18 20:42:36,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2022-11-18 20:42:36,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2022-11-18 20:42:36,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2022-11-18 20:42:36,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2022-11-18 20:42:36,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2022-11-18 20:42:36,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2022-11-18 20:42:36,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2022-11-18 20:42:36,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2022-11-18 20:42:36,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2022-11-18 20:42:36,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2022-11-18 20:42:36,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2022-11-18 20:42:36,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2022-11-18 20:42:36,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2022-11-18 20:42:36,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2022-11-18 20:42:36,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2022-11-18 20:42:36,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:42:36,048 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-18 20:42:36,048 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 20:42:36,049 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-18 20:42:36,089 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 20:42:36,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 128 transitions, 286 flow [2022-11-18 20:42:36,151 INFO L130 PetriNetUnfolder]: 34/360 cut-off events. [2022-11-18 20:42:36,152 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-18 20:42:36,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 360 events. 34/360 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1103 event pairs, 1 based on Foata normal form. 0/291 useless extension candidates. Maximal degree in co-relation 217. Up to 16 conditions per place. [2022-11-18 20:42:36,154 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 128 transitions, 286 flow [2022-11-18 20:42:36,161 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 128 transitions, 286 flow [2022-11-18 20:42:36,163 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:42:36,169 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;@1a2e1dfc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:42:36,169 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-11-18 20:42:36,172 INFO L130 PetriNetUnfolder]: 0/20 cut-off events. [2022-11-18 20:42:36,172 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:42:36,172 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:42:36,172 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:42:36,172 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:42:36,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:42:36,173 INFO L85 PathProgramCache]: Analyzing trace with hash 579667839, now seen corresponding path program 1 times [2022-11-18 20:42:36,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:42:36,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221790819] [2022-11-18 20:42:36,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:36,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:42:36,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:42:36,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:42:36,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:42:36,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221790819] [2022-11-18 20:42:36,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221790819] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:42:36,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:42:36,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:42:36,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61129733] [2022-11-18 20:42:36,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:42:36,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:42:36,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:42:36,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:42:36,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:42:36,197 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 128 [2022-11-18 20:42:36,198 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 128 transitions, 286 flow. Second operand has 2 states, 2 states have (on average 100.5) internal successors, (201), 2 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:36,198 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:42:36,198 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 128 [2022-11-18 20:42:36,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:42:36,302 INFO L130 PetriNetUnfolder]: 84/453 cut-off events. [2022-11-18 20:42:36,302 INFO L131 PetriNetUnfolder]: For 191/217 co-relation queries the response was YES. [2022-11-18 20:42:36,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 640 conditions, 453 events. 84/453 cut-off events. For 191/217 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1922 event pairs, 19 based on Foata normal form. 57/450 useless extension candidates. Maximal degree in co-relation 317. Up to 115 conditions per place. [2022-11-18 20:42:36,308 INFO L137 encePairwiseOnDemand]: 116/128 looper letters, 15 selfloop transitions, 0 changer transitions 0/115 dead transitions. [2022-11-18 20:42:36,308 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 115 transitions, 290 flow [2022-11-18 20:42:36,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:42:36,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-18 20:42:36,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 227 transitions. [2022-11-18 20:42:36,310 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.88671875 [2022-11-18 20:42:36,310 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 227 transitions. [2022-11-18 20:42:36,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 227 transitions. [2022-11-18 20:42:36,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:42:36,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 227 transitions. [2022-11-18 20:42:36,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 113.5) internal successors, (227), 2 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:36,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:36,315 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:36,315 INFO L175 Difference]: Start difference. First operand has 123 places, 128 transitions, 286 flow. Second operand 2 states and 227 transitions. [2022-11-18 20:42:36,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 115 transitions, 290 flow [2022-11-18 20:42:36,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 115 transitions, 290 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:42:36,319 INFO L231 Difference]: Finished difference. Result has 114 places, 115 transitions, 260 flow [2022-11-18 20:42:36,320 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=260, PETRI_PLACES=114, PETRI_TRANSITIONS=115} [2022-11-18 20:42:36,322 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, -9 predicate places. [2022-11-18 20:42:36,322 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 115 transitions, 260 flow [2022-11-18 20:42:36,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 100.5) internal successors, (201), 2 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:36,323 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:42:36,323 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:42:36,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:42:36,323 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:42:36,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:42:36,324 INFO L85 PathProgramCache]: Analyzing trace with hash -93669107, now seen corresponding path program 1 times [2022-11-18 20:42:36,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:42:36,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94814464] [2022-11-18 20:42:36,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:36,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:42:36,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:42:36,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:42:36,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:42:36,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94814464] [2022-11-18 20:42:36,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94814464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:42:36,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:42:36,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:42:36,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73897463] [2022-11-18 20:42:36,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:42:36,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:42:36,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:42:36,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:42:36,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:42:36,371 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 128 [2022-11-18 20:42:36,372 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 115 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:36,372 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:42:36,372 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 128 [2022-11-18 20:42:36,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:42:36,631 INFO L130 PetriNetUnfolder]: 258/1209 cut-off events. [2022-11-18 20:42:36,631 INFO L131 PetriNetUnfolder]: For 200/200 co-relation queries the response was YES. [2022-11-18 20:42:36,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1672 conditions, 1209 events. 258/1209 cut-off events. For 200/200 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 7825 event pairs, 58 based on Foata normal form. 0/1005 useless extension candidates. Maximal degree in co-relation 1666. Up to 347 conditions per place. [2022-11-18 20:42:36,644 INFO L137 encePairwiseOnDemand]: 125/128 looper letters, 26 selfloop transitions, 2 changer transitions 0/121 dead transitions. [2022-11-18 20:42:36,644 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 121 transitions, 328 flow [2022-11-18 20:42:36,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:42:36,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:42:36,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 308 transitions. [2022-11-18 20:42:36,646 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8020833333333334 [2022-11-18 20:42:36,646 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 308 transitions. [2022-11-18 20:42:36,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 308 transitions. [2022-11-18 20:42:36,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:42:36,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 308 transitions. [2022-11-18 20:42:36,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:36,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:36,649 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:36,649 INFO L175 Difference]: Start difference. First operand has 114 places, 115 transitions, 260 flow. Second operand 3 states and 308 transitions. [2022-11-18 20:42:36,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 121 transitions, 328 flow [2022-11-18 20:42:36,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 121 transitions, 328 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:42:36,652 INFO L231 Difference]: Finished difference. Result has 117 places, 116 transitions, 272 flow [2022-11-18 20:42:36,652 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=272, PETRI_PLACES=117, PETRI_TRANSITIONS=116} [2022-11-18 20:42:36,653 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, -6 predicate places. [2022-11-18 20:42:36,653 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 116 transitions, 272 flow [2022-11-18 20:42:36,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:36,653 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:42:36,653 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:42:36,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:42:36,654 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:42:36,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:42:36,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1706220828, now seen corresponding path program 1 times [2022-11-18 20:42:36,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:42:36,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759721295] [2022-11-18 20:42:36,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:36,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:42:36,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:42:36,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:42:36,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:42:36,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759721295] [2022-11-18 20:42:36,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759721295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:42:36,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:42:36,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:42:36,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461842809] [2022-11-18 20:42:36,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:42:36,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:42:36,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:42:36,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:42:36,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:42:36,692 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 128 [2022-11-18 20:42:36,692 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 116 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:36,692 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:42:36,692 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 128 [2022-11-18 20:42:36,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:42:37,352 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][81], [136#(= |#race~stopSales~0| 0), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, 103#L721-2true, 129#true, salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-18 20:42:37,352 INFO L383 tUnfolder$Statistics]: this new event has 96 ancestors and is cut-off event [2022-11-18 20:42:37,353 INFO L386 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-11-18 20:42:37,353 INFO L386 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-11-18 20:42:37,353 INFO L386 tUnfolder$Statistics]: existing Event has 63 ancestors and is cut-off event [2022-11-18 20:42:37,353 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][82], [33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, 134#true, 129#true, salethreadThread3of3ForFork0NotInUse, 97#L721-3true, 126#true]) [2022-11-18 20:42:37,353 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:42:37,353 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-18 20:42:37,353 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:42:37,354 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-18 20:42:37,354 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([547] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread2of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_14| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))))) InVars {salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} OutVars{salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} AuxVars[] AssignedVars[][116], [33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, 134#true, 129#true, salethreadThread3of3ForFork0NotInUse, 87#L721-3true, 126#true]) [2022-11-18 20:42:37,354 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:42:37,354 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:42:37,354 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-18 20:42:37,354 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-18 20:42:37,400 INFO L130 PetriNetUnfolder]: 654/3901 cut-off events. [2022-11-18 20:42:37,400 INFO L131 PetriNetUnfolder]: For 1338/3693 co-relation queries the response was YES. [2022-11-18 20:42:37,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5261 conditions, 3901 events. 654/3901 cut-off events. For 1338/3693 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 39293 event pairs, 115 based on Foata normal form. 1/3144 useless extension candidates. Maximal degree in co-relation 5253. Up to 474 conditions per place. [2022-11-18 20:42:37,488 INFO L137 encePairwiseOnDemand]: 116/128 looper letters, 32 selfloop transitions, 9 changer transitions 0/133 dead transitions. [2022-11-18 20:42:37,488 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 133 transitions, 409 flow [2022-11-18 20:42:37,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:42:37,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:42:37,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 317 transitions. [2022-11-18 20:42:37,489 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8255208333333334 [2022-11-18 20:42:37,489 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 317 transitions. [2022-11-18 20:42:37,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 317 transitions. [2022-11-18 20:42:37,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:42:37,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 317 transitions. [2022-11-18 20:42:37,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:37,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:37,492 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:37,492 INFO L175 Difference]: Start difference. First operand has 117 places, 116 transitions, 272 flow. Second operand 3 states and 317 transitions. [2022-11-18 20:42:37,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 133 transitions, 409 flow [2022-11-18 20:42:37,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 133 transitions, 407 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:42:37,495 INFO L231 Difference]: Finished difference. Result has 120 places, 125 transitions, 348 flow [2022-11-18 20:42:37,496 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=348, PETRI_PLACES=120, PETRI_TRANSITIONS=125} [2022-11-18 20:42:37,497 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, -3 predicate places. [2022-11-18 20:42:37,497 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 125 transitions, 348 flow [2022-11-18 20:42:37,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:37,497 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:42:37,497 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:42:37,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:42:37,498 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:42:37,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:42:37,498 INFO L85 PathProgramCache]: Analyzing trace with hash 913815373, now seen corresponding path program 1 times [2022-11-18 20:42:37,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:42:37,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753223296] [2022-11-18 20:42:37,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:37,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:42:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:42:37,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:42:37,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:42:37,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753223296] [2022-11-18 20:42:37,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753223296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:42:37,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:42:37,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:42:37,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939841150] [2022-11-18 20:42:37,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:42:37,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:42:37,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:42:37,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:42:37,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:42:37,543 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 128 [2022-11-18 20:42:37,543 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 125 transitions, 348 flow. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:37,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:42:37,544 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 128 [2022-11-18 20:42:37,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:42:39,350 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][81], [136#(= |#race~stopSales~0| 0), 140#true, 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, 66#salethreadENTRYtrue, salethreadThread3of3ForFork0NotInUse, Black: 134#true, 126#true]) [2022-11-18 20:42:39,351 INFO L383 tUnfolder$Statistics]: this new event has 88 ancestors and is cut-off event [2022-11-18 20:42:39,351 INFO L386 tUnfolder$Statistics]: existing Event has 60 ancestors and is cut-off event [2022-11-18 20:42:39,351 INFO L386 tUnfolder$Statistics]: existing Event has 65 ancestors and is cut-off event [2022-11-18 20:42:39,351 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-18 20:42:39,550 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([547] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread2of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_14| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))))) InVars {salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} OutVars{salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} AuxVars[] AssignedVars[][118], [136#(= |#race~stopSales~0| 0), 42#L722-1true, 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, Black: 134#true, salethreadThread3of3ForFork0NotInUse, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:42:39,550 INFO L383 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-11-18 20:42:39,551 INFO L386 tUnfolder$Statistics]: existing Event has 65 ancestors and is cut-off event [2022-11-18 20:42:39,551 INFO L386 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-11-18 20:42:39,551 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-11-18 20:42:39,551 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([547] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread2of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_14| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))))) InVars {salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} OutVars{salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} AuxVars[] AssignedVars[][118], [136#(= |#race~stopSales~0| 0), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 88#L722-2true, salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, Black: 134#true, salethreadThread3of3ForFork0NotInUse, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:42:39,551 INFO L383 tUnfolder$Statistics]: this new event has 94 ancestors and is cut-off event [2022-11-18 20:42:39,551 INFO L386 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-11-18 20:42:39,551 INFO L386 tUnfolder$Statistics]: existing Event has 99 ancestors and is cut-off event [2022-11-18 20:42:39,552 INFO L386 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-11-18 20:42:39,583 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([547] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread2of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_14| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))))) InVars {salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} OutVars{salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} AuxVars[] AssignedVars[][118], [33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, 134#true, Black: 136#(= |#race~stopSales~0| 0), salethreadThread3of3ForFork0NotInUse, 126#true, 87#L721-3true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:42:39,583 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:42:39,583 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-18 20:42:39,583 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-18 20:42:39,584 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:42:39,791 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][82], [33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, 134#true, Black: 136#(= |#race~stopSales~0| 0), salethreadThread2of3ForFork0InUse, salethreadThread3of3ForFork0NotInUse, 97#L721-3true, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:42:39,791 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:42:39,792 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-18 20:42:39,792 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-18 20:42:39,792 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:42:39,984 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][82], [136#(= |#race~stopSales~0| 0), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, 102#L722-2true, salethreadThread2of3ForFork0InUse, salethreadThread3of3ForFork0NotInUse, Black: 134#true, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:42:39,986 INFO L383 tUnfolder$Statistics]: this new event has 99 ancestors and is cut-off event [2022-11-18 20:42:39,987 INFO L386 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2022-11-18 20:42:39,987 INFO L386 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-11-18 20:42:39,987 INFO L386 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-11-18 20:42:40,006 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][82], [136#(= |#race~stopSales~0| 0), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, 102#L722-2true, salethreadThread2of3ForFork0InUse, Black: 134#true, salethreadThread3of3ForFork0NotInUse, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:42:40,007 INFO L383 tUnfolder$Statistics]: this new event has 99 ancestors and is cut-off event [2022-11-18 20:42:40,007 INFO L386 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2022-11-18 20:42:40,007 INFO L386 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-11-18 20:42:40,007 INFO L386 tUnfolder$Statistics]: existing Event has 99 ancestors and is cut-off event [2022-11-18 20:42:40,007 INFO L386 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-11-18 20:42:40,008 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][82], [136#(= |#race~stopSales~0| 0), 106#L722-1true, 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, Black: 134#true, salethreadThread3of3ForFork0NotInUse, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:42:40,008 INFO L383 tUnfolder$Statistics]: this new event has 98 ancestors and is cut-off event [2022-11-18 20:42:40,008 INFO L386 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-11-18 20:42:40,008 INFO L386 tUnfolder$Statistics]: existing Event has 65 ancestors and is cut-off event [2022-11-18 20:42:40,008 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-18 20:42:40,431 INFO L130 PetriNetUnfolder]: 4573/16387 cut-off events. [2022-11-18 20:42:40,431 INFO L131 PetriNetUnfolder]: For 6386/11701 co-relation queries the response was YES. [2022-11-18 20:42:40,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27144 conditions, 16387 events. 4573/16387 cut-off events. For 6386/11701 co-relation queries the response was YES. Maximal size of possible extension queue 838. Compared 201725 event pairs, 1391 based on Foata normal form. 3/13976 useless extension candidates. Maximal degree in co-relation 27135. Up to 4987 conditions per place. [2022-11-18 20:42:40,609 INFO L137 encePairwiseOnDemand]: 113/128 looper letters, 41 selfloop transitions, 11 changer transitions 0/147 dead transitions. [2022-11-18 20:42:40,609 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 147 transitions, 535 flow [2022-11-18 20:42:40,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:42:40,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:42:40,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 314 transitions. [2022-11-18 20:42:40,611 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8177083333333334 [2022-11-18 20:42:40,612 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 314 transitions. [2022-11-18 20:42:40,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 314 transitions. [2022-11-18 20:42:40,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:42:40,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 314 transitions. [2022-11-18 20:42:40,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:40,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:40,615 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:40,615 INFO L175 Difference]: Start difference. First operand has 120 places, 125 transitions, 348 flow. Second operand 3 states and 314 transitions. [2022-11-18 20:42:40,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 147 transitions, 535 flow [2022-11-18 20:42:40,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 147 transitions, 511 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:42:40,688 INFO L231 Difference]: Finished difference. Result has 122 places, 136 transitions, 426 flow [2022-11-18 20:42:40,689 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=426, PETRI_PLACES=122, PETRI_TRANSITIONS=136} [2022-11-18 20:42:40,689 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, -1 predicate places. [2022-11-18 20:42:40,689 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 136 transitions, 426 flow [2022-11-18 20:42:40,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:40,690 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:42:40,690 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:42:40,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 20:42:40,691 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:42:40,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:42:40,691 INFO L85 PathProgramCache]: Analyzing trace with hash 469144953, now seen corresponding path program 1 times [2022-11-18 20:42:40,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:42:40,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505714765] [2022-11-18 20:42:40,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:40,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:42:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:42:40,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:42:40,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:42:40,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505714765] [2022-11-18 20:42:40,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505714765] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:42:40,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982816526] [2022-11-18 20:42:40,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:40,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:42:40,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:42:40,836 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:42:40,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:42:40,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:42:40,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:42:40,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:42:41,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:42:41,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:42:41,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:42:41,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982816526] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:42:41,081 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:42:41,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 20:42:41,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010646173] [2022-11-18 20:42:41,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:42:41,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:42:41,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:42:41,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:42:41,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:42:41,087 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 128 [2022-11-18 20:42:41,088 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 136 transitions, 426 flow. Second operand has 10 states, 10 states have (on average 94.6) internal successors, (946), 10 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:41,089 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:42:41,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 128 [2022-11-18 20:42:41,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:42:44,740 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([505] L728-->L721-3: Formula: (= (+ v_salethreadThread2of3ForFork0_~_numberOfSeatsSold~0_7 1) v_~numberOfSeatsSold~0_14) InVars {salethreadThread2of3ForFork0_~_numberOfSeatsSold~0=v_salethreadThread2of3ForFork0_~_numberOfSeatsSold~0_7} OutVars{#race~numberOfSeatsSold~0=|v_#race~numberOfSeatsSold~0_25|, salethreadThread2of3ForFork0_~_numberOfSeatsSold~0=v_salethreadThread2of3ForFork0_~_numberOfSeatsSold~0_7, salethreadThread2of3ForFork0_#t~nondet2=|v_salethreadThread2of3ForFork0_#t~nondet2_3|, ~numberOfSeatsSold~0=v_~numberOfSeatsSold~0_14} AuxVars[] AssignedVars[~numberOfSeatsSold~0, #race~numberOfSeatsSold~0, salethreadThread2of3ForFork0_#t~nondet2][108], [146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), 140#true, 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, Black: 134#true, salethreadThread3of3ForFork0NotInUse, 97#L721-3true, 126#true]) [2022-11-18 20:42:44,740 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:42:44,740 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:42:44,740 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:42:44,740 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:42:44,741 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([503] L724-->L721-3: Formula: (= v_~stopSales~0_20 1) InVars {} OutVars{salethreadThread2of3ForFork0_#t~nondet1=|v_salethreadThread2of3ForFork0_#t~nondet1_3|, ~stopSales~0=v_~stopSales~0_20, #race~stopSales~0=|v_#race~stopSales~0_24|} AuxVars[] AssignedVars[~stopSales~0, #race~stopSales~0, salethreadThread2of3ForFork0_#t~nondet1][106], [Black: 140#true, 146#true, 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, Black: 136#(= |#race~stopSales~0| 0), salethreadThread3of3ForFork0NotInUse, 97#L721-3true, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:42:44,741 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:42:44,741 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:42:44,741 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:42:44,741 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:42:44,814 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([448] L749-6-->L752: Formula: (= |v_#race~numberOfSeatsSold~0_10| 0) InVars {} OutVars{#race~numberOfSeatsSold~0=|v_#race~numberOfSeatsSold~0_10|} AuxVars[] AssignedVars[#race~numberOfSeatsSold~0][135], [Black: 140#true, 146#true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, 102#L722-2true, 56#L752true, salethreadThread2of3ForFork0InUse, Black: 134#true, salethreadThread3of3ForFork0NotInUse, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:42:44,814 INFO L383 tUnfolder$Statistics]: this new event has 105 ancestors and is cut-off event [2022-11-18 20:42:44,814 INFO L386 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-11-18 20:42:44,814 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-18 20:42:44,815 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-18 20:42:44,903 INFO L130 PetriNetUnfolder]: 6176/24951 cut-off events. [2022-11-18 20:42:44,903 INFO L131 PetriNetUnfolder]: For 11078/13988 co-relation queries the response was YES. [2022-11-18 20:42:44,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43873 conditions, 24951 events. 6176/24951 cut-off events. For 11078/13988 co-relation queries the response was YES. Maximal size of possible extension queue 1013. Compared 336576 event pairs, 1529 based on Foata normal form. 160/21065 useless extension candidates. Maximal degree in co-relation 43863. Up to 3631 conditions per place. [2022-11-18 20:42:45,092 INFO L137 encePairwiseOnDemand]: 122/128 looper letters, 73 selfloop transitions, 9 changer transitions 0/188 dead transitions. [2022-11-18 20:42:45,092 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 188 transitions, 804 flow [2022-11-18 20:42:45,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:42:45,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:42:45,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 888 transitions. [2022-11-18 20:42:45,096 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7708333333333334 [2022-11-18 20:42:45,096 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 888 transitions. [2022-11-18 20:42:45,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 888 transitions. [2022-11-18 20:42:45,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:42:45,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 888 transitions. [2022-11-18 20:42:45,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 98.66666666666667) internal successors, (888), 9 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:45,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:45,103 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:45,103 INFO L175 Difference]: Start difference. First operand has 122 places, 136 transitions, 426 flow. Second operand 9 states and 888 transitions. [2022-11-18 20:42:45,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 188 transitions, 804 flow [2022-11-18 20:42:45,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 188 transitions, 758 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:42:45,298 INFO L231 Difference]: Finished difference. Result has 131 places, 142 transitions, 454 flow [2022-11-18 20:42:45,298 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=454, PETRI_PLACES=131, PETRI_TRANSITIONS=142} [2022-11-18 20:42:45,299 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, 8 predicate places. [2022-11-18 20:42:45,299 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 142 transitions, 454 flow [2022-11-18 20:42:45,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 94.6) internal successors, (946), 10 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:45,300 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:42:45,300 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:42:45,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-18 20:42:45,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-18 20:42:45,506 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:42:45,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:42:45,506 INFO L85 PathProgramCache]: Analyzing trace with hash -593229992, now seen corresponding path program 1 times [2022-11-18 20:42:45,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:42:45,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619013024] [2022-11-18 20:42:45,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:45,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:42:45,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:42:45,587 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:42:45,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:42:45,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619013024] [2022-11-18 20:42:45,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619013024] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:42:45,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:42:45,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:42:45,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658336145] [2022-11-18 20:42:45,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:42:45,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:42:45,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:42:45,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:42:45,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:42:45,590 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 128 [2022-11-18 20:42:45,591 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 142 transitions, 454 flow. Second operand has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:45,591 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:42:45,591 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 128 [2022-11-18 20:42:45,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:42:47,545 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([541] L728-->L721-3: Formula: (= (+ v_salethreadThread1of3ForFork0_~_numberOfSeatsSold~0_7 1) v_~numberOfSeatsSold~0_14) InVars {salethreadThread1of3ForFork0_~_numberOfSeatsSold~0=v_salethreadThread1of3ForFork0_~_numberOfSeatsSold~0_7} OutVars{#race~numberOfSeatsSold~0=|v_#race~numberOfSeatsSold~0_25|, ~numberOfSeatsSold~0=v_~numberOfSeatsSold~0_14, salethreadThread1of3ForFork0_~_numberOfSeatsSold~0=v_salethreadThread1of3ForFork0_~_numberOfSeatsSold~0_7, salethreadThread1of3ForFork0_#t~nondet2=|v_salethreadThread1of3ForFork0_#t~nondet2_3|} AuxVars[] AssignedVars[~numberOfSeatsSold~0, #race~numberOfSeatsSold~0, salethreadThread1of3ForFork0_#t~nondet2][45], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 25), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 134#true, 87#L721-3true, 5#L722-2true, 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), salethreadThread3of3ForFork0InUse, 126#true]) [2022-11-18 20:42:47,546 INFO L383 tUnfolder$Statistics]: this new event has 90 ancestors and is cut-off event [2022-11-18 20:42:47,546 INFO L386 tUnfolder$Statistics]: existing Event has 90 ancestors and is cut-off event [2022-11-18 20:42:47,546 INFO L386 tUnfolder$Statistics]: existing Event has 85 ancestors and is cut-off event [2022-11-18 20:42:47,546 INFO L386 tUnfolder$Statistics]: existing Event has 85 ancestors and is cut-off event [2022-11-18 20:42:47,546 INFO L381 tUnfolder$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| 25), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 134#true, 87#L721-3true, 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), salethreadThread1of3ForFork0InUse, 76#L722-1true, salethreadThread2of3ForFork0NotInUse, 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), salethreadThread3of3ForFork0InUse, 126#true]) [2022-11-18 20:42:47,547 INFO L383 tUnfolder$Statistics]: this new event has 89 ancestors and is cut-off event [2022-11-18 20:42:47,547 INFO L386 tUnfolder$Statistics]: existing Event has 89 ancestors and is cut-off event [2022-11-18 20:42:47,547 INFO L386 tUnfolder$Statistics]: existing Event has 84 ancestors and is cut-off event [2022-11-18 20:42:47,547 INFO L386 tUnfolder$Statistics]: existing Event has 84 ancestors and is cut-off event [2022-11-18 20:42:47,553 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([517] L722-2-->L723: Formula: (= v_salethreadThread3of3ForFork0_~_numberOfSeatsSold~0_1 v_~numberOfSeatsSold~0_1) InVars {~numberOfSeatsSold~0=v_~numberOfSeatsSold~0_1} OutVars{~numberOfSeatsSold~0=v_~numberOfSeatsSold~0_1, salethreadThread3of3ForFork0_~_numberOfSeatsSold~0=v_salethreadThread3of3ForFork0_~_numberOfSeatsSold~0_1} AuxVars[] AssignedVars[salethreadThread3of3ForFork0_~_numberOfSeatsSold~0][136], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 25), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 425#(and (= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0) (= ~numberOfSeatsSold~0 0)), Black: 134#true, Black: 140#true, 146#true, 40#L723true, salethreadThread1of3ForFork0InUse, 21#L728true, salethreadThread2of3ForFork0NotInUse, salethreadThread3of3ForFork0InUse, 126#true]) [2022-11-18 20:42:47,553 INFO L383 tUnfolder$Statistics]: this new event has 85 ancestors and is not cut-off event [2022-11-18 20:42:47,554 INFO L386 tUnfolder$Statistics]: existing Event has 90 ancestors and is not cut-off event [2022-11-18 20:42:47,554 INFO L386 tUnfolder$Statistics]: existing Event has 90 ancestors and is not cut-off event [2022-11-18 20:42:47,554 INFO L386 tUnfolder$Statistics]: existing Event has 85 ancestors and is not cut-off event [2022-11-18 20:42:47,756 INFO L381 tUnfolder$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| 25), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 134#true, 97#L721-3true, 87#L721-3true, 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0InUse, 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-18 20:42:47,756 INFO L383 tUnfolder$Statistics]: this new event has 88 ancestors and is cut-off event [2022-11-18 20:42:47,756 INFO L386 tUnfolder$Statistics]: existing Event has 88 ancestors and is cut-off event [2022-11-18 20:42:47,756 INFO L386 tUnfolder$Statistics]: existing Event has 88 ancestors and is cut-off event [2022-11-18 20:42:47,756 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-18 20:42:48,667 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([548] salethreadEXIT-->L750-7: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_16| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_salethreadThread3of3ForFork0_thidvar0_4) InVars {salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} OutVars{salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} AuxVars[] AssignedVars[][177], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 25), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 134#true, 87#L721-3true, 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-18 20:42:48,667 INFO L383 tUnfolder$Statistics]: this new event has 97 ancestors and is cut-off event [2022-11-18 20:42:48,668 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:42:48,668 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:42:48,668 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:42:48,679 INFO L381 tUnfolder$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| 25), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 425#(and (= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0) (= ~numberOfSeatsSold~0 0)), Black: 134#true, Black: 140#true, 146#true, salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, 21#L728true, salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-18 20:42:48,679 INFO L383 tUnfolder$Statistics]: this new event has 101 ancestors and is cut-off event [2022-11-18 20:42:48,679 INFO L386 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-11-18 20:42:48,679 INFO L386 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-11-18 20:42:48,679 INFO L386 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-11-18 20:42:48,740 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([548] salethreadEXIT-->L750-7: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_16| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_salethreadThread3of3ForFork0_thidvar0_4) InVars {salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} OutVars{salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} AuxVars[] AssignedVars[][177], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 25), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 134#true, 97#L721-3true, 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-18 20:42:48,740 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:42:48,740 INFO L386 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-11-18 20:42:48,740 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:42:48,740 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:42:49,415 INFO L381 tUnfolder$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| 25), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0NotInUse, 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), salethreadThread3of3ForFork0NotInUse, Black: 134#true, 126#true]) [2022-11-18 20:42:49,415 INFO L383 tUnfolder$Statistics]: this new event has 116 ancestors and is cut-off event [2022-11-18 20:42:49,415 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-18 20:42:49,415 INFO L386 tUnfolder$Statistics]: existing Event has 116 ancestors and is cut-off event [2022-11-18 20:42:49,415 INFO L386 tUnfolder$Statistics]: existing Event has 116 ancestors and is cut-off event [2022-11-18 20:42:49,496 INFO L130 PetriNetUnfolder]: 7626/31979 cut-off events. [2022-11-18 20:42:49,496 INFO L131 PetriNetUnfolder]: For 7994/14839 co-relation queries the response was YES. [2022-11-18 20:42:49,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51791 conditions, 31979 events. 7626/31979 cut-off events. For 7994/14839 co-relation queries the response was YES. Maximal size of possible extension queue 1395. Compared 455850 event pairs, 2221 based on Foata normal form. 112/27121 useless extension candidates. Maximal degree in co-relation 51779. Up to 4756 conditions per place. [2022-11-18 20:42:49,717 INFO L137 encePairwiseOnDemand]: 122/128 looper letters, 69 selfloop transitions, 7 changer transitions 0/190 dead transitions. [2022-11-18 20:42:49,717 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 190 transitions, 803 flow [2022-11-18 20:42:49,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:42:49,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:42:49,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 528 transitions. [2022-11-18 20:42:49,719 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.825 [2022-11-18 20:42:49,720 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 528 transitions. [2022-11-18 20:42:49,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 528 transitions. [2022-11-18 20:42:49,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:42:49,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 528 transitions. [2022-11-18 20:42:49,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.6) internal successors, (528), 5 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:49,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 128.0) internal successors, (768), 6 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:49,724 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 128.0) internal successors, (768), 6 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:49,724 INFO L175 Difference]: Start difference. First operand has 131 places, 142 transitions, 454 flow. Second operand 5 states and 528 transitions. [2022-11-18 20:42:49,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 190 transitions, 803 flow [2022-11-18 20:42:49,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 190 transitions, 797 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-18 20:42:49,733 INFO L231 Difference]: Finished difference. Result has 137 places, 148 transitions, 511 flow [2022-11-18 20:42:49,733 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=511, PETRI_PLACES=137, PETRI_TRANSITIONS=148} [2022-11-18 20:42:49,734 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, 14 predicate places. [2022-11-18 20:42:49,734 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 148 transitions, 511 flow [2022-11-18 20:42:49,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:49,734 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:42:49,735 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:42:49,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 20:42:49,735 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:42:49,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:42:49,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1860258400, now seen corresponding path program 1 times [2022-11-18 20:42:49,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:42:49,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786310485] [2022-11-18 20:42:49,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:49,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:42:49,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:42:49,799 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:42:49,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:42:49,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786310485] [2022-11-18 20:42:49,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786310485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:42:49,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:42:49,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:42:49,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342592681] [2022-11-18 20:42:49,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:42:49,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:42:49,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:42:49,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:42:49,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:42:49,802 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 128 [2022-11-18 20:42:49,803 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 148 transitions, 511 flow. Second operand has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:49,803 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:42:49,803 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 128 [2022-11-18 20:42:49,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:42:52,592 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([548] salethreadEXIT-->L750-7: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_16| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_salethreadThread3of3ForFork0_thidvar0_4) InVars {salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} OutVars{salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} AuxVars[] AssignedVars[][172], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 25), 433#(= salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 0), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 425#(and (= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0) (= ~numberOfSeatsSold~0 0)), Black: 134#true, Black: 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), 97#L721-3true, Black: 422#(= ~numberOfSeatsSold~0 0), 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), 420#true, salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-18 20:42:52,593 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:42:52,593 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:42:52,593 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:42:52,593 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:42:53,565 INFO L381 tUnfolder$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| 25), 433#(= salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 0), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 425#(and (= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0) (= ~numberOfSeatsSold~0 0)), Black: 134#true, Black: 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), Black: 422#(= ~numberOfSeatsSold~0 0), 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), 420#true, salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0NotInUse, salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-18 20:42:53,565 INFO L383 tUnfolder$Statistics]: this new event has 116 ancestors and is cut-off event [2022-11-18 20:42:53,565 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-18 20:42:53,565 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-18 20:42:53,565 INFO L386 tUnfolder$Statistics]: existing Event has 116 ancestors and is cut-off event [2022-11-18 20:42:53,667 INFO L130 PetriNetUnfolder]: 7497/33079 cut-off events. [2022-11-18 20:42:53,667 INFO L131 PetriNetUnfolder]: For 16027/21821 co-relation queries the response was YES. [2022-11-18 20:42:53,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58016 conditions, 33079 events. 7497/33079 cut-off events. For 16027/21821 co-relation queries the response was YES. Maximal size of possible extension queue 1427. Compared 479988 event pairs, 2293 based on Foata normal form. 208/28502 useless extension candidates. Maximal degree in co-relation 58000. Up to 4780 conditions per place. [2022-11-18 20:42:54,086 INFO L137 encePairwiseOnDemand]: 122/128 looper letters, 62 selfloop transitions, 10 changer transitions 0/186 dead transitions. [2022-11-18 20:42:54,086 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 186 transitions, 838 flow [2022-11-18 20:42:54,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:42:54,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:42:54,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 525 transitions. [2022-11-18 20:42:54,093 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8203125 [2022-11-18 20:42:54,095 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 525 transitions. [2022-11-18 20:42:54,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 525 transitions. [2022-11-18 20:42:54,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:42:54,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 525 transitions. [2022-11-18 20:42:54,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.0) internal successors, (525), 5 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:54,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 128.0) internal successors, (768), 6 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:54,099 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 128.0) internal successors, (768), 6 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:54,099 INFO L175 Difference]: Start difference. First operand has 137 places, 148 transitions, 511 flow. Second operand 5 states and 525 transitions. [2022-11-18 20:42:54,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 186 transitions, 838 flow [2022-11-18 20:42:54,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 186 transitions, 834 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:42:54,146 INFO L231 Difference]: Finished difference. Result has 143 places, 152 transitions, 574 flow [2022-11-18 20:42:54,147 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=574, PETRI_PLACES=143, PETRI_TRANSITIONS=152} [2022-11-18 20:42:54,148 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, 20 predicate places. [2022-11-18 20:42:54,148 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 152 transitions, 574 flow [2022-11-18 20:42:54,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:54,148 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:42:54,149 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:42:54,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 20:42:54,149 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:42:54,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:42:54,150 INFO L85 PathProgramCache]: Analyzing trace with hash -871650852, now seen corresponding path program 1 times [2022-11-18 20:42:54,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:42:54,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883433042] [2022-11-18 20:42:54,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:54,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:42:54,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:42:54,166 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:42:54,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:42:54,198 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:42:54,198 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:42:54,199 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (21 of 22 remaining) [2022-11-18 20:42:54,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2022-11-18 20:42:54,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2022-11-18 20:42:54,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2022-11-18 20:42:54,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2022-11-18 20:42:54,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2022-11-18 20:42:54,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2022-11-18 20:42:54,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2022-11-18 20:42:54,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2022-11-18 20:42:54,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2022-11-18 20:42:54,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 22 remaining) [2022-11-18 20:42:54,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2022-11-18 20:42:54,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2022-11-18 20:42:54,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2022-11-18 20:42:54,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2022-11-18 20:42:54,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2022-11-18 20:42:54,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2022-11-18 20:42:54,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2022-11-18 20:42:54,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2022-11-18 20:42:54,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2022-11-18 20:42:54,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2022-11-18 20:42:54,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2022-11-18 20:42:54,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 20:42:54,203 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:42:54,209 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2022-11-18 20:42:54,209 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:42:54,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:42:54 BasicIcfg [2022-11-18 20:42:54,295 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:42:54,296 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:42:54,296 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:42:54,296 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:42:54,297 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:42:32" (3/4) ... [2022-11-18 20:42:54,300 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:42:54,300 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:42:54,301 INFO L158 Benchmark]: Toolchain (without parser) took 23064.45ms. Allocated memory was 138.4MB in the beginning and 7.9GB in the end (delta: 7.8GB). Free memory was 107.6MB in the beginning and 7.2GB in the end (delta: -7.1GB). Peak memory consumption was 716.2MB. Max. memory is 16.1GB. [2022-11-18 20:42:54,301 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 86.0MB. Free memory was 42.0MB in the beginning and 41.9MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:42:54,302 INFO L158 Benchmark]: CACSL2BoogieTranslator took 501.65ms. Allocated memory is still 138.4MB. Free memory was 107.6MB in the beginning and 106.4MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:42:54,302 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.61ms. Allocated memory is still 138.4MB. Free memory was 106.4MB in the beginning and 104.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:42:54,302 INFO L158 Benchmark]: Boogie Preprocessor took 31.56ms. Allocated memory is still 138.4MB. Free memory was 104.3MB in the beginning and 103.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:42:54,303 INFO L158 Benchmark]: RCFGBuilder took 572.97ms. Allocated memory is still 138.4MB. Free memory was 103.0MB in the beginning and 86.2MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-18 20:42:54,303 INFO L158 Benchmark]: TraceAbstraction took 21898.97ms. Allocated memory was 138.4MB in the beginning and 7.9GB in the end (delta: 7.8GB). Free memory was 85.4MB in the beginning and 7.2GB in the end (delta: -7.1GB). Peak memory consumption was 695.8MB. Max. memory is 16.1GB. [2022-11-18 20:42:54,303 INFO L158 Benchmark]: Witness Printer took 4.12ms. Allocated memory is still 7.9GB. Free memory is still 7.2GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:42:54,306 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 86.0MB. Free memory was 42.0MB in the beginning and 41.9MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 501.65ms. Allocated memory is still 138.4MB. Free memory was 107.6MB in the beginning and 106.4MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.61ms. Allocated memory is still 138.4MB. Free memory was 106.4MB in the beginning and 104.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.56ms. Allocated memory is still 138.4MB. Free memory was 104.3MB in the beginning and 103.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 572.97ms. Allocated memory is still 138.4MB. Free memory was 103.0MB in the beginning and 86.2MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 21898.97ms. Allocated memory was 138.4MB in the beginning and 7.9GB in the end (delta: 7.8GB). Free memory was 85.4MB in the beginning and 7.2GB in the end (delta: -7.1GB). Peak memory consumption was 695.8MB. Max. memory is 16.1GB. * Witness Printer took 4.12ms. Allocated memory is still 7.9GB. Free memory is still 7.2GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 722]: Data race detected Data race detected The following path leads to a data race: [L718] 0 int stopSales; VAL [stopSales=0] [L719] 0 int numOfTickets; VAL [numOfTickets=0, stopSales=0] [L717] 0 int numberOfSeatsSold; VAL [numberOfSeatsSold=0, numOfTickets=0, stopSales=0] [L736] 0 pthread_t salethreads[25]; VAL [\old(argc)=101, argc=101, argv={102:103}, argv={102:103}, numberOfSeatsSold=0, numOfTickets=0, salethreads={3:0}, stopSales=0] [L738] 0 numOfTickets = 25 VAL [\old(argc)=101, argc=101, argv={102:103}, argv={102:103}, numberOfSeatsSold=0, numOfTickets=25, salethreads={3:0}, stopSales=0] [L741] 0 numberOfSeatsSold = 0 VAL [\old(argc)=101, argc=101, argv={102:103}, argv={102:103}, numberOfSeatsSold=0, numOfTickets=25, salethreads={3:0}, stopSales=0] [L744] 0 stopSales = 0 VAL [\old(argc)=101, argc=101, argv={102:103}, argv={102:103}, numberOfSeatsSold=0, numOfTickets=25, salethreads={3:0}, stopSales=0] [L746] 0 int i = 0; VAL [\old(argc)=101, argc=101, argv={102:103}, argv={102:103}, i=0, numberOfSeatsSold=0, numOfTickets=25, salethreads={3:0}, stopSales=0] [L746] COND TRUE 0 i < 25 VAL [\old(argc)=101, argc=101, argv={102:103}, argv={102:103}, i=0, numberOfSeatsSold=0, numOfTickets=25, salethreads={3:0}, stopSales=0] [L747] FCALL, FORK 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(argc)=101, arg={0:0}, argc=101, argv={102:103}, argv={102:103}, i=0, numberOfSeatsSold=0, numOfTickets=25, pthread_create(&salethreads[i], 0, salethread, ((void *)0))=-1, salethreads={3:0}, stopSales=0] [L721] 1 !stopSales VAL [arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=25, stopSales=0] [L746] 0 i++ VAL [\old(argc)=101, arg={0:0}, arg={0:0}, argc=101, argv={102:103}, argv={102:103}, i=1, numberOfSeatsSold=0, numOfTickets=25, salethreads={3:0}, stopSales=0] [L746] COND TRUE 0 i < 25 VAL [\old(argc)=101, arg={0:0}, arg={0:0}, argc=101, argv={102:103}, argv={102:103}, i=1, numberOfSeatsSold=0, numOfTickets=25, salethreads={3:0}, stopSales=0] [L747] FCALL, FORK 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(argc)=101, arg={0:0}, arg={0:0}, argc=101, argv={102:103}, argv={102:103}, i=1, numberOfSeatsSold=0, numOfTickets=25, pthread_create(&salethreads[i], 0, salethread, ((void *)0))=0, salethreads={3:0}, stopSales=0] [L721] 2 !stopSales VAL [arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=25, stopSales=0] [L721] COND TRUE 2 !stopSales VAL [arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=25, stopSales=0] [L721] COND TRUE 1 !stopSales VAL [arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=25, stopSales=0] [L722] 1 int _numberOfSeatsSold = numberOfSeatsSold; VAL [_numberOfSeatsSold=0, arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=25, stopSales=0] [L723] COND FALSE 1 !(_numberOfSeatsSold >= (25 - (((25 / 10) == 0) ? 1 : (25 / 10)))) VAL [_numberOfSeatsSold=0, arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=25, stopSales=0] [L729] 1 numberOfSeatsSold = _numberOfSeatsSold + 1 VAL [_numberOfSeatsSold=0, arg={0:0}, arg={0:0}, numberOfSeatsSold=1, numOfTickets=25, stopSales=0] [L722] 2 int _numberOfSeatsSold = numberOfSeatsSold; VAL [_numberOfSeatsSold=0, arg={0:0}, arg={0:0}, numberOfSeatsSold=1, numOfTickets=25, stopSales=0] Now there is a data race on ~numberOfSeatsSold~0 between C: numberOfSeatsSold = _numberOfSeatsSold + 1 [729] and C: int _numberOfSeatsSold = numberOfSeatsSold; [722] - UnprovableResult [Line: 721]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 738]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 741]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 752]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 750]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 747]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 100 locations, 14 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 61 IncrementalHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 9 mSDtfsCounter, 61 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=184occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 113 ConstructedInterpolants, 0 QuantifiedInterpolants, 119 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 117 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.2s, OverallIterations: 6, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 76 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 76 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 207 IncrementalHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 21 mSDtfsCounter, 207 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=332occurred in iteration=4, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 252 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 239 ConstructedInterpolants, 0 QuantifiedInterpolants, 311 SizeOfPredicates, 2 NumberOfNonLiveVariables, 111 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 134 locations, 22 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 18.1s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 17.1s, 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, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 339 ConstructedInterpolants, 0 QuantifiedInterpolants, 519 SizeOfPredicates, 2 NumberOfNonLiveVariables, 111 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 10/13 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-18 20:42:54,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41587929-7538-4971-829e-f64047f4f2c1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE